diff options
Diffstat (limited to 'gr-uhd')
56 files changed, 9745 insertions, 34 deletions
diff --git a/gr-uhd/Makefile.am b/gr-uhd/Makefile.am index ea16c863c..56829e9c4 100644 --- a/gr-uhd/Makefile.am +++ b/gr-uhd/Makefile.am @@ -21,7 +21,7 @@ include $(top_srcdir)/Makefile.common -SUBDIRS = include lib apps +SUBDIRS = include lib apps examples doc if PYTHON SUBDIRS += swig grc diff --git a/gr-uhd/apps/Makefile.am b/gr-uhd/apps/Makefile.am index 9bb9b6cdd..c30a143c2 100644 --- a/gr-uhd/apps/Makefile.am +++ b/gr-uhd/apps/Makefile.am @@ -24,9 +24,13 @@ include $(top_srcdir)/Makefile.common EXTRA_DIST += \ $(bin_SCRIPTS) +SUBDIRS = hf_explorer hf_radio + ourpythondir = $(grpythondir) bin_SCRIPTS = \ - uhd_fft.py \ - uhd_rx_cfile.py - + uhd_fft.py \ + uhd_rx_cfile.py \ + uhd_siggen.py \ + uhd_siggen_gui.py \ + uhd_rx_nogui.py diff --git a/gr-uhd/apps/hf_explorer/.gitignore b/gr-uhd/apps/hf_explorer/.gitignore new file mode 100644 index 000000000..b6950912c --- /dev/null +++ b/gr-uhd/apps/hf_explorer/.gitignore @@ -0,0 +1,3 @@ +/Makefile +/Makefile.in +/*.pyc diff --git a/gr-uhd/apps/hf_explorer/Makefile.am b/gr-uhd/apps/hf_explorer/Makefile.am new file mode 100644 index 000000000..c8e7ecb25 --- /dev/null +++ b/gr-uhd/apps/hf_explorer/Makefile.am @@ -0,0 +1,31 @@ +# +# Copyright 2006,2009 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +include $(top_srcdir)/Makefile.common + +ourdatadir = $(exampledir)/hf_explorer + +dist_ourdata_DATA = \ + README \ + hfx_help + +dist_ourdata_SCRIPTS = \ + hfx.py diff --git a/gr-uhd/apps/hf_explorer/README b/gr-uhd/apps/hf_explorer/README new file mode 100644 index 000000000..57f45ceba --- /dev/null +++ b/gr-uhd/apps/hf_explorer/README @@ -0,0 +1,42 @@ +hfx.py is meant to be a full-featured Long Wave / Medium Wave +and Short Wave (250kHz to 30Mhz) AM and Single Sideband receiver. +It uses the USRP with a Basic RX board, and will need an +antenna and some preamps, about 30db gain will work. See the +'Help' menu or hfx_help for more info. + +---------------------------------------------------------- + +Powermate knob supported but not required, tooltip frequency display, +single click tuning, AGC, record to disk, play from disk and record +audio. Ability to tailor the audio passband with two sliders over the +spectrum display. The sliders almost align with the actual +frequency. Preset filter settings for LSB (-3000 to 0kHz), USB (0 to ++3000kHz), CW (-400 to -800Hz) and AM (-5kHz from carrier to +5kHz). + +AM now switches in a synchronous PLL detector with the carriers at +7.5kHz. The PLL carrier is displayed in the bottom display and helps +show where on the upper spectrum the demodulated signal +lies. Everything gets shifted up 7.5kHz in AM, center frequency, +tooltips, etc. The target AM carrier needs to be closely tuned in, it +will have a hollow sound untill it is locked, and then the PLL carrier +in the bottom display will jump up and remain relatively +constant. There is a slider "AM sync carrier" to play with different +levels to mix with the signal for demodulation. The filter in AM is +preset to 2500/12500 (7.5kHz +/- 5kHz) and is handy for removing +adjacent channel interference. Change AM_SYNC_DISPLAY in script for +whether to show AM Sync carrier or not. + +Run with "-h" for command line help with setting USRP ddc center +frequency, decimation, rf data record, playback and audio data +recording. + +There are some controls for controlling a varactor and tuning an +antenna - just ignore them unless you want to build a voltage tuned +antenna to track frequency. + +There is also code for Web based control of frequency and volume - so +I can tune the radio with an Ipaq from bed. Disabled by default - it +takes a web server, some directories and scripts to use. + + + diff --git a/gr-uhd/apps/hf_explorer/hfx.py b/gr-uhd/apps/hf_explorer/hfx.py new file mode 100755 index 000000000..687adf82b --- /dev/null +++ b/gr-uhd/apps/hf_explorer/hfx.py @@ -0,0 +1,823 @@ +#!/usr/bin/env python +# generated by wxGlade 0.4 on Tue Mar 14 10:16:06 2006 +# +# Copyright 2006,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# +#----------------------------------------------------------------- +# +# +-->(fft) +# | +# (src)->(xlate)--+->(audio filter)--+-->(sel_am)-+--------------+ +# | | | +# | (pll) | +# | | | +# | (pll_carrier_scale) | +# | | | +# | (pll_carrier_filter) | +# | | | +# | +--(fft2) | +# | | | +# | +--(c2f3)--+ | +# | | | | +# | (phaser1) (phaser2) | +# | | | | +# | +--(f2c)---+ | +# | | V +# V +---------->(am_det) +# (c2f) | +# | (c2f2) +# | | +# +-->(sel_sb)------------>(combine) +# | +# V +# +--------------------------(scale) +# | | +# | | +# | +++ +# V | | +# (agc)<--(offset)<--(intr)<---(sqr1) +# | +# V +# (dst) +# +#---------------------------------------------------------------------- +# +# Versions 2.2.1 adds loop antenna automatic tuner +# +# 2.3.1 adds web control, made AM Sync display optional, +# added more comments. +# +# 2.4.1 updates usrp interface to support auto subdev +# +# 2.8.1 changed saved file format from 8-byte complex to +# 4-byte short for obvious storage space savings. + +# Web server control disabled by default. Do not enable +# until directory structure and scripts are in place. +WEB_CONTROL = False + +# Controls display of AM Sync Carrier - turn off for smaller +# window if not needed +AM_SYNC_DISPLAY = False + +import os, wx, sys, math +import wx.lib.evtmgr as em +from gnuradio.wxgui import powermate, fftsink2 +from gnuradio import gr, audio, eng_notation +from gnuradio.eng_option import eng_option +from gnuradio import uhd +from optparse import OptionParser + +n2s = eng_notation.num_to_str + +ID_BUTTON_1 = wx.NewId() # LSB button +ID_BUTTON_2 = wx.NewId() # USB +ID_BUTTON_3 = wx.NewId() # AM +ID_BUTTON_4 = wx.NewId() # CW +ID_BUTTON_5 = wx.NewId() # Powermate controls: Upper audio freq cutoff +ID_BUTTON_6 = wx.NewId() # " Lower audio freq cutoff +ID_BUTTON_7 = wx.NewId() # " Frequency +ID_BUTTON_8 = wx.NewId() # " Volume +ID_BUTTON_9 = wx.NewId() # " Time +ID_BUTTON_10 = wx.NewId() # Time Seek Forwards +ID_BUTTON_11 = wx.NewId() # Time Seek Backwards +ID_BUTTON_12 = wx.NewId() # Automatic Antenna Tune (AT) enable +ID_BUTTON_13 = wx.NewId() # AT Calibrate point +ID_BUTTON_14 = wx.NewId() # AT Reset +ID_TEXT_1 = wx.NewId() # Band Center, USRP ddc Freq +ID_SPIN_1 = wx.NewId() # Frequency display and control +ID_SLIDER_1 = wx.NewId() # Upper audio freq cutoff +ID_SLIDER_2 = wx.NewId() # Lower audio freq cutoff +ID_SLIDER_3 = wx.NewId() # Frequency +ID_SLIDER_4 = wx.NewId() # Volume +ID_SLIDER_5 = wx.NewId() # Programmable Gain Amp, PGA, RF gain +ID_SLIDER_6 = wx.NewId() # AM Sync carrier level +ID_SLIDER_7 = wx.NewId() # AT control voltage output +ID_EXIT = wx.NewId() # Menu Exit + + +class MyFrame(wx.Frame): + def __init__(self, *args, **kwds): + # begin wxGlade: MyFrame.__init__ + kwds["style"] = wx.DEFAULT_FRAME_STYLE + wx.Frame.__init__(self, *args, **kwds) + + # Menu Bar + self.frame_1_menubar = wx.MenuBar() + self.SetMenuBar(self.frame_1_menubar) + wxglade_tmp_menu = wx.Menu() + self.Exit = wx.MenuItem(wxglade_tmp_menu, ID_EXIT, "Exit", + "Exit", wx.ITEM_NORMAL) + wxglade_tmp_menu.AppendItem(self.Exit) + self.frame_1_menubar.Append(wxglade_tmp_menu, "File") + # Menu Bar end + self.panel_1 = wx.Panel(self, -1) + self.button_1 = wx.Button(self, ID_BUTTON_1, "LSB") + self.button_2 = wx.Button(self, ID_BUTTON_2, "USB") + self.button_3 = wx.Button(self, ID_BUTTON_3, "AM") + self.button_4 = wx.Button(self, ID_BUTTON_4, "CW") + self.button_5 = wx.ToggleButton(self, ID_BUTTON_5, "Upper") + self.slider_fcutoff_hi = wx.Slider(self, ID_SLIDER_1, 0, -15798, 15799, + style=wx.SL_HORIZONTAL|wx.SL_LABELS) + self.button_6 = wx.ToggleButton(self, ID_BUTTON_6, "Lower") + self.slider_fcutoff_lo = wx.Slider(self, ID_SLIDER_2, 0, -15799, 15798, + style=wx.SL_HORIZONTAL|wx.SL_LABELS) + self.panel_5 = wx.Panel(self, -1) + self.label_1 = wx.StaticText(self, -1, " Band\nCenter") + self.text_ctrl_1 = wx.TextCtrl(self, ID_TEXT_1, "") + self.panel_6 = wx.Panel(self, -1) + self.panel_7 = wx.Panel(self, -1) + self.panel_2 = wx.Panel(self, -1) + self.button_7 = wx.ToggleButton(self, ID_BUTTON_7, "Freq") + self.slider_3 = wx.Slider(self, ID_SLIDER_3, 3000, 0, 6000) + self.spin_ctrl_1 = wx.SpinCtrl(self, ID_SPIN_1, "", min=0, max=100) + self.button_8 = wx.ToggleButton(self, ID_BUTTON_8, "Vol") + self.slider_4 = wx.Slider(self, ID_SLIDER_4, 0, 0, 500) + self.slider_5 = wx.Slider(self, ID_SLIDER_5, 0, 0, 20) + self.button_9 = wx.ToggleButton(self, ID_BUTTON_9, "Time") + self.button_11 = wx.Button(self, ID_BUTTON_11, "Rew") + self.button_10 = wx.Button(self, ID_BUTTON_10, "Fwd") + self.panel_3 = wx.Panel(self, -1) + self.label_2 = wx.StaticText(self, -1, "PGA ") + self.panel_4 = wx.Panel(self, -1) + self.panel_8 = wx.Panel(self, -1) + self.panel_9 = wx.Panel(self, -1) + self.label_3 = wx.StaticText(self, -1, "AM Sync\nCarrier") + self.slider_6 = wx.Slider(self, ID_SLIDER_6, 50, 0, 200, + style=wx.SL_HORIZONTAL|wx.SL_LABELS) + self.label_4 = wx.StaticText(self, -1, "Antenna Tune") + self.slider_7 = wx.Slider(self, ID_SLIDER_7, 1575, 950, 2200, + style=wx.SL_HORIZONTAL|wx.SL_LABELS) + self.panel_10 = wx.Panel(self, -1) + self.button_12 = wx.ToggleButton(self, ID_BUTTON_12, "Auto Tune") + self.button_13 = wx.Button(self, ID_BUTTON_13, "Calibrate") + self.button_14 = wx.Button(self, ID_BUTTON_14, "Reset") + self.panel_11 = wx.Panel(self, -1) + self.panel_12 = wx.Panel(self, -1) + + self.__set_properties() + self.__do_layout() + # end wxGlade + + parser = OptionParser (option_class=eng_option) + parser.add_option("", "--address", type="string", default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option ("-c", "--ddc-freq", type="eng_float", default=3.9e6, + help="set Rx DDC frequency to FREQ", metavar="FREQ") + parser.add_option ("-s", "--samp-rate", type="eng_float", default=256e3, + help="set sample rate (bandwidth) [default=%default]") + parser.add_option ("-a", "--audio_file", default="", + help="audio output file", metavar="FILE") + parser.add_option ("-r", "--radio_file", default="", + help="radio output file", metavar="FILE") + parser.add_option ("-i", "--input_file", default="", + help="radio input file", metavar="FILE") + parser.add_option ("-O", "--audio-output", type="string", default="", + help="audio output device name. E.g., hw:0,0, /dev/dsp, or pulse") + + (options, args) = parser.parse_args () + + self.usrp_center = options.ddc_freq + input_rate = options.samp_rate + self.slider_range = input_rate * 0.9375 + self.f_lo = self.usrp_center - (self.slider_range/2) + self.f_hi = self.usrp_center + (self.slider_range/2) + self.af_sample_rate = 32000 + fir_decim = long (input_rate / self.af_sample_rate) + + # data point arrays for antenna tuner + self.xdata = [] + self.ydata = [] + + self.tb = gr.top_block() + + # radio variables, initial conditions + self.frequency = self.usrp_center + # these map the frequency slider (0-6000) to the actual range + self.f_slider_offset = self.f_lo + self.f_slider_scale = 10000 + self.spin_ctrl_1.SetRange(self.f_lo,self.f_hi) + self.text_ctrl_1.SetValue(str(int(self.usrp_center))) + self.slider_5.SetValue(0) + self.AM_mode = False + + self.slider_3.SetValue((self.frequency-self.f_slider_offset)/self.f_slider_scale) + self.spin_ctrl_1.SetValue(int(self.frequency)) + + POWERMATE = True + try: + self.pm = powermate.powermate(self) + except: + sys.stderr.write("Unable to find PowerMate or Contour Shuttle\n") + POWERMATE = False + + if POWERMATE: + powermate.EVT_POWERMATE_ROTATE(self, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON(self, self.on_pmButton) + self.active_button = 7 + + # command line options + if options.audio_file == "": SAVE_AUDIO_TO_FILE = False + else: SAVE_AUDIO_TO_FILE = True + if options.radio_file == "": SAVE_RADIO_TO_FILE = False + else: SAVE_RADIO_TO_FILE = True + if options.input_file == "": self.PLAY_FROM_USRP = True + else: self.PLAY_FROM_USRP = False + + if self.PLAY_FROM_USRP: + self.src = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + self.src.set_samp_rate(input_rate) + input_rate = self.src.get_samp_rate() + + self.src.set_center_freq(self.usrp_center, 0) + self.tune_offset = 0 + + else: + self.src = gr.file_source (gr.sizeof_short,options.input_file) + self.tune_offset = 2200 # 2200 works for 3.5-4Mhz band + + # convert rf data in interleaved short int form to complex + s2ss = gr.stream_to_streams(gr.sizeof_short,2) + s2f1 = gr.short_to_float() + s2f2 = gr.short_to_float() + src_f2c = gr.float_to_complex() + self.tb.connect(self.src,s2ss) + self.tb.connect((s2ss,0),s2f1) + self.tb.connect((s2ss,1),s2f2) + self.tb.connect(s2f1,(src_f2c,0)) + self.tb.connect(s2f2,(src_f2c,1)) + + # save radio data to a file + if SAVE_RADIO_TO_FILE: + radio_file = gr.file_sink(gr.sizeof_short, options.radio_file) + self.tb.connect (self.src, radio_file) + + # 2nd DDC + xlate_taps = gr.firdes.low_pass ( \ + 1.0, input_rate, 16e3, 4e3, gr.firdes.WIN_HAMMING ) + self.xlate = gr.freq_xlating_fir_filter_ccf ( \ + fir_decim, xlate_taps, self.tune_offset, input_rate ) + + # Complex Audio filter + audio_coeffs = gr.firdes.complex_band_pass ( + 1.0, # gain + self.af_sample_rate, # sample rate + -3000, # low cutoff + 0, # high cutoff + 100, # transition + gr.firdes.WIN_HAMMING) # window + self.slider_fcutoff_hi.SetValue(0) + self.slider_fcutoff_lo.SetValue(-3000) + + self.audio_filter = gr.fir_filter_ccc(1, audio_coeffs) + + # Main +/- 16Khz spectrum display + self.fft = fftsink2.fft_sink_c(self.panel_2, fft_size=512, + sample_rate=self.af_sample_rate, + average=True, size=(640,240)) + + # AM Sync carrier + if AM_SYNC_DISPLAY: + self.fft2 = fftsink.fft_sink_c(self.tb, self.panel_9, + y_per_div=20, fft_size=512, + sample_rate=self.af_sample_rate, + average=True, size=(640,240)) + + c2f = gr.complex_to_float() + + # AM branch + self.sel_am = gr.multiply_const_cc(0) + # the following frequencies turn out to be in radians/sample + # gr.pll_refout_cc(alpha,beta,min_freq,max_freq) + # suggested alpha = X, beta = .25 * X * X + pll = gr.pll_refout_cc(.5,.0625,(2.*math.pi*7.5e3/self.af_sample_rate), + (2.*math.pi*6.5e3/self.af_sample_rate)) + self.pll_carrier_scale = gr.multiply_const_cc(complex(10,0)) + am_det = gr.multiply_cc() + # these are for converting +7.5kHz to -7.5kHz + # for some reason gr.conjugate_cc() adds noise ?? + c2f2 = gr.complex_to_float() + c2f3 = gr.complex_to_float() + f2c = gr.float_to_complex() + phaser1 = gr.multiply_const_ff(1) + phaser2 = gr.multiply_const_ff(-1) + + # filter for pll generated carrier + pll_carrier_coeffs = gr.firdes.complex_band_pass ( + 2.0, # gain + self.af_sample_rate, # sample rate + 7400, # low cutoff + 7600, # high cutoff + 100, # transition + gr.firdes.WIN_HAMMING) # window + + self.pll_carrier_filter = gr.fir_filter_ccc (1, pll_carrier_coeffs) + + self.sel_sb = gr.multiply_const_ff(1) + combine = gr.add_ff() + + #AGC + sqr1 = gr.multiply_ff() + intr = gr.iir_filter_ffd ( [.004, 0], [0, .999] ) + offset = gr.add_const_ff(1) + agc = gr.divide_ff() + + self.scale = gr.multiply_const_ff(0.00001) + dst = audio.sink(long(self.af_sample_rate), + options.audio_output) + + + if self.PLAY_FROM_USRP: + self.tb.connect(self.src, self.xlate, self.fft) + else: + self.tb.connect(src_f2c, self.xlate, self.fft) + + self.tb.connect(self.xlate,self.audio_filter,self.sel_am,(am_det,0)) + self.tb.connect(self.sel_am,pll,self.pll_carrier_scale, + self.pll_carrier_filter,c2f3) + self.tb.connect((c2f3,0),phaser1,(f2c,0)) + self.tb.connect((c2f3,1),phaser2,(f2c,1)) + self.tb.connect(f2c,(am_det,1)) + self.tb.connect(am_det,c2f2,(combine,0)) + self.tb.connect(self.audio_filter,c2f, + self.sel_sb,(combine,1)) + + if AM_SYNC_DISPLAY: + self.tb.connect(self.pll_carrier_filter,self.fft2) + + self.tb.connect(combine,self.scale) + self.tb.connect(self.scale,(sqr1,0)) + self.tb.connect(self.scale,(sqr1,1)) + self.tb.connect(sqr1, intr, offset, (agc, 1)) + self.tb.connect(self.scale,(agc, 0)) + self.tb.connect(agc,dst) + + if SAVE_AUDIO_TO_FILE: + f_out = gr.file_sink(gr.sizeof_short,options.audio_file) + sc1 = gr.multiply_const_ff(64000) + f2s1 = gr.float_to_short() + self.tb.connect(agc,sc1,f2s1,f_out) + + self.tb.start() + + # for mouse position reporting on fft display + self.fft.win.Bind(wx.EVT_LEFT_UP, self.Mouse) + # and left click to re-tune + self.fft.win.Bind(wx.EVT_LEFT_DOWN, self.Click) + + # start a timer to check for web commands + if WEB_CONTROL: + self.timer = UpdateTimer(self, 1000) # every 1000 mSec, 1 Sec + + + wx.EVT_BUTTON(self,ID_BUTTON_1,self.set_lsb) + wx.EVT_BUTTON(self,ID_BUTTON_2,self.set_usb) + wx.EVT_BUTTON(self,ID_BUTTON_3,self.set_am) + wx.EVT_BUTTON(self,ID_BUTTON_4,self.set_cw) + wx.EVT_BUTTON(self,ID_BUTTON_10,self.fwd) + wx.EVT_BUTTON(self,ID_BUTTON_11,self.rew) + wx.EVT_BUTTON(self, ID_BUTTON_13, self.AT_calibrate) + wx.EVT_BUTTON(self, ID_BUTTON_14, self.AT_reset) + wx.EVT_TOGGLEBUTTON(self,ID_BUTTON_5,self.on_button) + wx.EVT_TOGGLEBUTTON(self,ID_BUTTON_6,self.on_button) + wx.EVT_TOGGLEBUTTON(self,ID_BUTTON_7,self.on_button) + wx.EVT_TOGGLEBUTTON(self,ID_BUTTON_8,self.on_button) + wx.EVT_TOGGLEBUTTON(self,ID_BUTTON_9,self.on_button) + wx.EVT_SLIDER(self,ID_SLIDER_1,self.set_filter) + wx.EVT_SLIDER(self,ID_SLIDER_2,self.set_filter) + wx.EVT_SLIDER(self,ID_SLIDER_3,self.slide_tune) + wx.EVT_SLIDER(self,ID_SLIDER_4,self.set_volume) + wx.EVT_SLIDER(self,ID_SLIDER_5,self.set_pga) + wx.EVT_SLIDER(self,ID_SLIDER_6,self.am_carrier) + wx.EVT_SLIDER(self,ID_SLIDER_7,self.antenna_tune) + wx.EVT_SPINCTRL(self,ID_SPIN_1,self.spin_tune) + + wx.EVT_MENU(self, ID_EXIT, self.TimeToQuit) + + def __set_properties(self): + # begin wxGlade: MyFrame.__set_properties + self.SetTitle("HF Explorer") + self.slider_fcutoff_hi.SetMinSize((450, 38)) + self.slider_fcutoff_lo.SetMinSize((450, 38)) + self.panel_2.SetMinSize((640, 240)) + self.button_7.SetValue(1) + self.slider_3.SetMinSize((450, 19)) + self.slider_4.SetMinSize((275, 19)) + self.slider_5.SetMinSize((275, 19)) + if AM_SYNC_DISPLAY: + self.panel_9.SetMinSize((640, 240)) + self.slider_6.SetMinSize((300, 38)) + self.slider_7.SetMinSize((400, 38)) + # end wxGlade + + def __do_layout(self): + # begin wxGlade: MyFrame.__do_layout + sizer_1 = wx.BoxSizer(wx.VERTICAL) + grid_sizer_1 = wx.FlexGridSizer(11, 2, 0, 0) + sizer_7 = wx.BoxSizer(wx.HORIZONTAL) + sizer_5 = wx.BoxSizer(wx.HORIZONTAL) + sizer_4 = wx.BoxSizer(wx.HORIZONTAL) + sizer_3 = wx.BoxSizer(wx.HORIZONTAL) + sizer_6 = wx.BoxSizer(wx.VERTICAL) + sizer_2 = wx.BoxSizer(wx.HORIZONTAL) + grid_sizer_1.Add(self.panel_1, 1, wx.EXPAND, 0) + sizer_2.Add(self.button_1, 0, wx.ADJUST_MINSIZE, 0) + sizer_2.Add(self.button_2, 0, wx.ADJUST_MINSIZE, 0) + sizer_2.Add(self.button_3, 0, wx.ADJUST_MINSIZE, 0) + sizer_2.Add(self.button_4, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(sizer_2, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.button_5, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.slider_fcutoff_hi, 0, + wx.ALIGN_CENTER_HORIZONTAL|wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.button_6, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.slider_fcutoff_lo, 0, + wx.ALIGN_CENTER_HORIZONTAL|wx.ADJUST_MINSIZE, 0) + sizer_6.Add(self.panel_5, 1, wx.EXPAND, 0) + sizer_6.Add(self.label_1, 0, + wx.ALIGN_CENTER_HORIZONTAL|wx.ADJUST_MINSIZE, 0) + sizer_6.Add(self.text_ctrl_1, 0, wx.ADJUST_MINSIZE, 0) + sizer_6.Add(self.panel_6, 1, wx.EXPAND, 0) + sizer_6.Add(self.panel_7, 1, wx.EXPAND, 0) + grid_sizer_1.Add(sizer_6, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.panel_2, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.button_7, 0, wx.ADJUST_MINSIZE, 0) + sizer_3.Add(self.slider_3, 0, wx.ADJUST_MINSIZE, 0) + sizer_3.Add(self.spin_ctrl_1, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(sizer_3, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.button_8, 0, wx.ADJUST_MINSIZE, 0) + sizer_4.Add(self.slider_4, 0, wx.ADJUST_MINSIZE, 0) + sizer_4.Add(self.slider_5, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(sizer_4, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.button_9, 0, wx.ADJUST_MINSIZE, 0) + sizer_5.Add(self.button_11, 0, wx.ADJUST_MINSIZE, 0) + sizer_5.Add(self.button_10, 0, wx.ADJUST_MINSIZE, 0) + sizer_5.Add(self.panel_3, 1, wx.EXPAND, 0) + sizer_5.Add(self.label_2, 0, wx.ADJUST_MINSIZE, 0) + sizer_5.Add(self.panel_4, 1, wx.EXPAND, 0) + grid_sizer_1.Add(sizer_5, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.panel_8, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.panel_9, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.label_3, 0, + wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.slider_6, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.label_4, 0, + wx.ALIGN_BOTTOM|wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.slider_7, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.panel_10, 1, wx.EXPAND, 0) + sizer_7.Add(self.button_12, 0, wx.ADJUST_MINSIZE, 0) + sizer_7.Add(self.button_13, 0, wx.ADJUST_MINSIZE, 0) + sizer_7.Add(self.button_14, 0, wx.ADJUST_MINSIZE, 0) + sizer_7.Add(self.panel_11, 1, wx.EXPAND, 0) + sizer_7.Add(self.panel_12, 1, wx.EXPAND, 0) + grid_sizer_1.Add(sizer_7, 1, wx.EXPAND, 0) + sizer_1.Add(grid_sizer_1, 1, wx.EXPAND, 0) + self.SetAutoLayout(True) + self.SetSizer(sizer_1) + sizer_1.Fit(self) + sizer_1.SetSizeHints(self) + self.Layout() + # end wxGlade + + # Menu exit + def TimeToQuit(self, event): + self.tb.stop() + self.Close(True) + + # Powermate being turned + def on_rotate(self, event): + if self.active_button == 5: + self.slider_fcutoff_hi.SetValue(self.slider_fcutoff_hi.GetValue()+event.delta) + if self.slider_fcutoff_lo.GetValue() > (self.slider_fcutoff_hi.GetValue() - 200) : + self.slider_fcutoff_lo.SetValue(self.slider_fcutoff_hi.GetValue() - 200) + self.filter() + if self.active_button == 6: + self.slider_fcutoff_lo.SetValue(self.slider_fcutoff_lo.GetValue()+event.delta) + if self.slider_fcutoff_hi.GetValue() < (self.slider_fcutoff_lo.GetValue() + 200) : + self.slider_fcutoff_hi.SetValue(self.slider_fcutoff_lo.GetValue() + 200) + self.filter() + if self.active_button == 7: + new = max(0, min(6000, self.slider_3.GetValue() + event.delta)) + self.slider_3.SetValue(new) + self.frequency = (self.f_slider_scale * new) + self.f_slider_offset + self.spin_ctrl_1.SetValue(self.frequency) + if self.AM_mode == False: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset)) + else: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset - 7.5e3)) + if self.button_12.GetValue(): + self.auto_antenna_tune() + if self.active_button == 8: + new = max(0, min(500, self.slider_4.GetValue() + event.delta)) + self.slider_4.SetValue(new) + self.scale.set_k(math.pow(10.,((self.slider_4.GetValue()-500.)/100.))) + if self.active_button == 9: + if self.PLAY_FROM_USRP == False: + if event.delta == -1: + self.src.seek(-1000000,gr.SEEK_CUR) + elif event.delta == 1: + self.src.seek(1000000,gr.SEEK_CUR) + + + # Powermate pressed to switch controlled function + def on_pmButton(self, event): + if event.value == 0: + if self.active_button == 5: + self.active_button = 6 + self.button_5.SetValue(False) + self.button_6.SetValue(True) + elif self.active_button == 6: + self.active_button = 7 + self.button_6.SetValue(False) + self.button_7.SetValue(True) + elif self.active_button == 7: + self.active_button = 8 + self.button_7.SetValue(False) + self.button_8.SetValue(True) + elif self.active_button == 8: + self.active_button = 9 + self.button_8.SetValue(False) + self.button_9.SetValue(True) + elif self.active_button == 9: + self.active_button = 5 + self.button_9.SetValue(False) + self.button_5.SetValue(True) + + # Clicking one PM control button turns the rest off + def on_button(self, event): + id = event.GetId() + if id == ID_BUTTON_5: + self.active_button = 5 + self.button_6.SetValue(False) + self.button_7.SetValue(False) + self.button_8.SetValue(False) + self.button_9.SetValue(False) + if id == ID_BUTTON_6: + self.active_button = 6 + self.button_5.SetValue(False) + self.button_7.SetValue(False) + self.button_8.SetValue(False) + self.button_9.SetValue(False) + if id == ID_BUTTON_7: + self.active_button = 7 + self.button_5.SetValue(False) + self.button_6.SetValue(False) + self.button_8.SetValue(False) + self.button_9.SetValue(False) + if id == ID_BUTTON_8: + self.active_button = 8 + self.button_5.SetValue(False) + self.button_6.SetValue(False) + self.button_7.SetValue(False) + self.button_9.SetValue(False) + if id == ID_BUTTON_9: + self.active_button = 9 + self.button_5.SetValue(False) + self.button_6.SetValue(False) + self.button_7.SetValue(False) + self.button_8.SetValue(False) + + # Make sure filter settings are legal + def set_filter(self, event): + slider = event.GetId() + slider1 = self.slider_fcutoff_hi.GetValue() + slider2 = self.slider_fcutoff_lo.GetValue() + if slider == ID_SLIDER_1: + if slider2 > (self.slider_fcutoff_hi.GetValue() - 200) : + self.slider_fcutoff_lo.SetValue(slider1 - 200) + elif slider == ID_SLIDER_2: + if slider1 < (self.slider_fcutoff_lo.GetValue() + 200) : + self.slider_fcutoff_hi.SetValue(slider2 + 200) + self.filter() + + # Calculate taps and apply + def filter(self): + audio_coeffs = gr.firdes.complex_band_pass ( + 1.0, # gain + self.af_sample_rate, # sample rate + self.slider_fcutoff_lo.GetValue(), # low cutoff + self.slider_fcutoff_hi.GetValue(), # high cutoff + 100, # transition + gr.firdes.WIN_HAMMING) # window + self.audio_filter.set_taps(audio_coeffs) + + def set_lsb(self, event): + self.AM_mode = False + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset)) + self.sel_sb.set_k(1) + self.sel_am.set_k(0) + self.slider_fcutoff_hi.SetValue(0) + self.slider_fcutoff_lo.SetValue(-3000) + self.filter() + + def set_usb(self, event): + self.AM_mode = False + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset)) + self.sel_sb.set_k(1) + self.sel_am.set_k(0) + self.slider_fcutoff_hi.SetValue(3000) + self.slider_fcutoff_lo.SetValue(0) + self.filter() + + def set_am(self, event): + self.AM_mode = True + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset - 7.5e3)) + self.sel_sb.set_k(0) + self.sel_am.set_k(1) + self.slider_fcutoff_hi.SetValue(12500) + self.slider_fcutoff_lo.SetValue(2500) + self.filter() + + def set_cw(self, event): + self.AM_mode = False + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset)) + self.AM_mode = False + self.sel_sb.set_k(1) + self.sel_am.set_k(0) + self.slider_fcutoff_hi.SetValue(-400) + self.slider_fcutoff_lo.SetValue(-800) + self.filter() + + def set_volume(self, event): + self.scale.set_k(math.pow(10.,((self.slider_4.GetValue()-500.)/100.))) + + def set_pga(self,event): + if self.PLAY_FROM_USRP: + self.src.set_gain(self.slider_5.GetValue()) + + def slide_tune(self, event): + self.frequency = (self.f_slider_scale * self.slider_3.GetValue()) + self.f_slider_offset + if self.AM_mode == False: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset)) + else: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset - 7.5e3)) + self.spin_ctrl_1.SetValue(self.frequency) + if self.button_12.GetValue(): + self.auto_antenna_tune() + + def spin_tune(self, event): + self.frequency = self.spin_ctrl_1.GetValue() + if self.AM_mode == False: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset)) + else: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset - 7.5e3)) + self.slider_3.SetValue(int((self.frequency-self.f_slider_offset)/self.f_slider_scale)) + if self.button_12.GetValue(): + self.auto_antenna_tune() + + # Seek forwards in file + def fwd(self, event): + if self.PLAY_FROM_USRP == False: + self.src.seek(10000000,gr.SEEK_CUR) + + # Seek backwards in file + def rew(self, event): + if self.PLAY_FROM_USRP == False: + self.src.seek(-10000000,gr.SEEK_CUR) + + # Mouse over fft display - show frequency in tooltip + def Mouse(self,event): + if self.AM_mode: + fRel = ( event.GetX() - 330. ) / 14.266666 - 7.5 + else: + fRel = ( event.GetX() - 330. ) / 14.266666 + self.fft.win.SetToolTip(wx.ToolTip(eng_notation.num_to_str(self.frequency + (fRel*1e3)))) + + # Mouse clicked on fft display - change frequency + def Click(self,event): + fRel = ( event.GetX() - 330. ) / 14.266666 + if self.AM_mode == False: + self.frequency = self.frequency + (fRel*1e3) + else: + self.frequency = self.frequency + (fRel*1e3) - 7.5e3 + self.spin_ctrl_1.SetValue(int(self.frequency)) + self.slider_3.SetValue(int((self.frequency-self.f_slider_offset)/self.f_slider_scale)) + if self.AM_mode == False: + self.xlate.set_center_freq ( self.usrp_center - ( self.frequency - self.tune_offset )) + else: + self.xlate.set_center_freq( self.usrp_center - (self.frequency - self.tune_offset - 7.5e3)) + + # Set power of AM sync carrier + def am_carrier(self,event): + scale = math.pow(10,(self.slider_6.GetValue())/50.) + self.pll_carrier_scale.set_k(complex(scale,0)) + + # Reset AT data and start calibrate over + def AT_reset(self, event): + self.xdata = [] + self.ydata = [] + + # Save AT setting for a particular frequency + def AT_calibrate(self, event): + self.xdata.append(float(self.frequency)) + self.ydata.append(self.slider_7.GetValue()) + if len(self.xdata) > 1: + self.m = [] + self.b = [] + for i in range(0,len(self.xdata)-1): + self.m.append( (self.ydata[i+1] - self.ydata[i]) / (self.xdata[i+1] - self.xdata[i]) ) + self.b.append( self.ydata[i] - self.m[i] * self.xdata[i] ) + + # Lookup calibrated points and calculate interpolated antenna tune voltage. + # This is to automatically tune a narrowband loop antenna when the freq + # is changed, to keep signals peaked. + def auto_antenna_tune(self): + for i in range(0,len(self.xdata)-1): + if (self.frequency > self.xdata[i]) & (self.frequency < self.xdata[i+1]): + self.slider_7.SetValue(self.m[i]*self.frequency + self.b[i]) + self.antenna_tune(0) + + # Slider to set loop antenna capacitance + def antenna_tune(self, evt): + if self.PLAY_FROM_USRP: + dev = self.src.get_dboard_iface() + dev.write_aux_dac(uhd.dboard_iface.UNIT_RX, + uhd.dboard_iface.AUX_DAC_C, + float(self.slider_7.GetValue())) + + # Timer events - check for web commands + def OnUpdate(self): + cmds = os.listdir("/var/www/cgi-bin/commands/") + if cmds!=[]: + if cmds[0]=='chfreq': + fd=open("/var/www/cgi-bin/commands/chfreq","r") + new=fd.readline() + fd.close() + if new!='': + os.unlink("/var/www/cgi-bin/commands/chfreq") + if ( int(new) >= self.f_lo ) & ( int(new) <= self.f_hi ): + self.frequency = int(new) + self.slider_3.SetValue(( self.frequency - self.f_slider_offset) / self.f_slider_scale ) + self.spin_ctrl_1.SetValue(self.frequency) + if self.button_12.GetValue(): + self.auto_antenna_tune() + if self.AM_mode: + self.xlate.set_center_freq ( self.usrp_center - ( self.frequency - self.tune_offset - 7.5e3 )) + else: + self.xlate.set_center_freq ( self.usrp_center - ( self.frequency - self.tune_offset )) + + if cmds[0]=='chvolume': + fd=open("/var/www/cgi-bin/commands/chvolume","r") + new=fd.readline() + fd.close() + if new!='': + os.unlink("/var/www/cgi-bin/commands/chvolume") + if ( int(new) >= 0 ) & ( int(new) <= 500 ): + self.volume = int(new) + self.slider_4.SetValue(self.volume) + self.scale.set_k(math.pow(10.,((self.slider_4.GetValue()-500.)/100.))) + + else: # no new web commands, update state + fh = open("/var/www/cgi-bin/state/freq","w") + fh.write(str(int(self.frequency))+'\n') + fh.close() + fh = open("/var/www/cgi-bin/state/volume","w") + fh.write(str(self.slider_4.GetValue())+'\n') + fh.close() + + +# end of class MyFrame + +# wx.Timer to check for web updates +class UpdateTimer(wx.Timer): + def __init__(self, target, dur=1000): + wx.Timer.__init__(self) + self.target = target + self.Start(dur) + + def Notify(self): + """Called every timer interval""" + if self.target: + self.target.OnUpdate() + + +class MyApp(wx.App): + def OnInit(self): + frame = MyFrame(None, -1, "HF Explorer") + frame.Show(True) + self.SetTopWindow(frame) + return True + + +if __name__ == "__main__": + app = MyApp(0) + app.MainLoop() + diff --git a/gr-uhd/apps/hf_explorer/hfx_help b/gr-uhd/apps/hf_explorer/hfx_help new file mode 100644 index 000000000..9a52dd2bb --- /dev/null +++ b/gr-uhd/apps/hf_explorer/hfx_help @@ -0,0 +1,180 @@ + + HF Explorer Help + + ----------------------------------------------------------------------- + + Command Line Switches: + + -c DDC center frequency, set band. + -c 7.2e6 or -c 7.2M for 40 meter ham band. + Default is 3.9e6 80 meter ham band. + Example: + + hfx.py -c 9500k + + starts up in the 31 meter band. + + -a Audio output file. Output file for 32kHz two channel + signed word audio. Two channels are used for + independent sideband. This file can be converted + to a wav file with sox. Example: + + sox -c 2 -r 3200 file.sw file.wav + + sox needs the .sw extension to indicate file type. + If not specified no audio file is created. + + -r Radio output file. File to write RF data to for later + demodulation. Records the entire band to disk, width + determined by sample rate/decimation. Be sure to + note the decimation and center freq for later use! + Example: + + hfx.py -c 900e3 -d 80 -r rf_data_AM-c900e3-d80 + + writes a pre-demod rf file centered on 900kHz with a + bandwidth of 800kHz (That's 80 AM stations!). The + center and decimation could be put in the filename for + proper use later. + If not specified no rf data file is created. + At default 250 decimation disk usage is about + 8Gb / hour. + + -i Radio input file. Use to play back a previously + recorded rf data file. Example: + + hfx.py -c 900e3 -d 80 -i rf_data_AM-c900e3-d80 + + plays back the previously recorded band, no + usrp hardware needed. Tune about the 800kHz wide band. + When playing a recorded file, time controls + fast-forward and rewind are available. + + -d Decimation. Sets sample rate and bandwidth. + This is the factor that the usrp sample rate, 64e6, + is divided by. Default is 250 for 256kHz bandwidth + which is enough to record a ham band without + eating up disk space too fast. The 64e6 sample + rate limits the upper practical frequency to 32MHz. + The Basic RX transformer limits the lower frequency + to about 200kHz. + + + Powermate Knob: + + A Powermate knob is recommended but not necessary. If a knob + is used, it is in one of 3 or 4 modes controlling frequency, + volume, filter and (if playing a recorded file) time. + Pushing the knob switches mode and the buttons on the HFX panel + change to show which mode is in effect. Then just turn the knob + to set frequency, volume, filter or go fast forward or rewind. + + + Bandswitch: + + Across the top are a set of predefined bands and buttons + to rapidly switch to the center of that band. To change a band, + type the frequency in Hz into the box under "Center Frequency", + then press "Set" on the left, then the button you want to + program. From then on (untill the program is exited) pushing + that button takes you to that band. To make a band button + permenant edit the hfx.py script with whatever frequency you + want assigned to what button. + + + Frequency: + + There are 6 ways to set the frequency. + 1) Move the slider with the mouse + 2) Use the Spin Control up/down arrows (very fine 1Hz control) + 3) Type the frequency in Hz into the Spin Control + 4) Turn the Powermate knob + 5) Web control. + 6) Clicking on the FFT display to set demod center. This is very + convenient for tuning +-15kHz when you see a signal on the + display. If in Lower Sideband, clicking just to the right of + a signal will tune to it immediately. Clicking several times + on the far right right or left of the display will rapidly + tune up or down the band. + + + Volume: + + Move the volume slider with the mouse, or push the Powermate knob + untill the volume button is active, or click on the volume button, + then turn the knob. Volume can also be set by web control if web + control is setup and enabled. + + + Filter: + + Similar to volume, switches in any of 30 audio filters from 600 + to 3600Hz in Sideband or up to 5kHz in AM. + + + Mode: + + Demodulation modes are chosen by clicking on the buttons for + Lower Sideband, Upper Sideband, or AM. + + + PGA: + + PGA slider sets the rf gain in the Analog-to-Digital converter + before digitizing. 0 to 20db gain easily shows up on the FFT + display. + + + Time: + + When playing back a recorded RF data file, you can enjoy the + freedom of rewinding or fast-forwarding. Replay a weak signal + or skip through annoying AM commercials. + + + Antennas and Preamps: + + The USRP Basic RX board is not sensitive enough for anything but + the strongest signals. In my experience about 40 db of small + signal gain is required to make the HFX as sensitive as other + receivers. Some working amplifiers are the Ramsey PR-2 with 20db + gain, fairly low noise and more bandwidth than we can use here. + Also the amp modules from Advanced Receiver Research are nice. + I use an ARR 7-7.4MHz GaAsFET 29db amp with .5db noise at the + apex of a 40 meter dipole with excellent results. Another + amp I like is a Minicircuits ZHL-32A 29db amp but they are + expensive and hard to find. Also it may help to use some filters + to keep strong local signals from the ADC, or limit rf input + to the band of interest, etc. + Resonant outdoor antennas, like a dipole, in a low-noise (away + from consumer electronics) environment are nice. Long random wires + with a tuner work. I like a small indoor tuned loop made from 10ft + of 1/4" copper tube, a 365pf tuning cap and a pickup loop connected + to rg-58. + + + Web Control: + + To control your radio remotely, ensure you have a web server + (Apache, etc) working and a compatible directory structure in + place. Directories /var/www/cgi-bin/commands and + /var/www/cgi-bin/state must already exist. You will need a + home page with forms and a set of scripts to put commands in + and put the current state on the home page. email me for further + help. Setting WEB_CONTROL to True in hfx.py turns on the timers + that check for commands and update the state. + + + IF Output: + + There is a provision for outputting un-demodulated complex + through the audio out in stereo for use with Digital Radio + Mondial (DRM) or using a seperate demodulation program like + SDRadio (by I2PHD). + Set IF_OUTPUT to True in weaver_isb_am1_usrp4.py. + + + --Good luck and happy LW/MW/SW Exploring. + Chuck + chuckek@musicriver.homeunix.com + diff --git a/gr-uhd/apps/hf_radio/.gitignore b/gr-uhd/apps/hf_radio/.gitignore new file mode 100644 index 000000000..b6950912c --- /dev/null +++ b/gr-uhd/apps/hf_radio/.gitignore @@ -0,0 +1,3 @@ +/Makefile +/Makefile.in +/*.pyc diff --git a/gr-uhd/apps/hf_radio/Makefile.am b/gr-uhd/apps/hf_radio/Makefile.am new file mode 100644 index 000000000..e514076f6 --- /dev/null +++ b/gr-uhd/apps/hf_radio/Makefile.am @@ -0,0 +1,39 @@ +# +# Copyright 2006,2009 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +include $(top_srcdir)/Makefile.common + +ourdatadir = $(exampledir)/hf_radio + +dist_ourdata_DATA = \ + hfir.sci \ + radio.xml \ + input.py \ + output.py \ + README.TXT \ + ssbagc.py \ + ssbdemod.py \ + startup.py \ + ssb_taps + +dist_ourdata_SCRIPTS = \ + radio.py \ + ui.py diff --git a/gr-uhd/apps/hf_radio/README.TXT b/gr-uhd/apps/hf_radio/README.TXT new file mode 100644 index 000000000..7c7edf5e0 --- /dev/null +++ b/gr-uhd/apps/hf_radio/README.TXT @@ -0,0 +1,60 @@ +# 2008-02-07 +# +# These files have not yet been update to use the new top_block/hier_block2 +# interfaces. Until someone does that, this files will no longer run. +# + + +The files in this directory implement a fairly simple HF radio that works +with the basic rx daughter board on the USRP. + +Many thanks to the Gnu Radio folks for a great new way to waste large blocks +of time in infinitely tweaking a huge number of free parameters. + +Start the receiver by running the radio.py in this directory. Or from the +Python prompt type "from radio import *" and you'll get the prompt back +with the receiver running. You can then poke around to see what's going on. + +There are two spectrum displays. One is the output of the USRP and displays +about 300KHz of bandwidth centered at the current tuning freq. The other +displays the output spectrum of the demodulator. + +The demodulator does AM demod using the complex modulus block from gr. It +does SSB demod using the frequency translating fir filter as a complex +hilbert transformer. The taps for this filter were generated using a program +called Scilab and the Scilab program in the file hfir.sci. More details in +the associated files. + +Tune the receiver using the spin buttons under the big frequency display. + +The agc block is a roll your own. The standard agc in the newer CVS updates +seems to work but doesn't seem to have adjustable time constants or provide +access to internal signal nodes which are used for the RSSI. + +The AGC authority (a sort of gain parameter) and the reference level used +in the power to dB computagion can be adjusted using the spin buttons. + +The audio bandwidth can be similarly adjusted from about 50Hz to 10KHz. + +The GUI layout was produced using wxGlade. The file radio.xml is the GUI +specification. It will produce a file called ui.py which is subclassed +by classes defined in radio.py. The ui.py is purely generated by wxGlade +all app specific code for the GUI is in radio.py. + +Most of the actual signal processing code is built up in the other included +files using the hierarchical block facilities. This organization should +make it easier to tweak to your heart's content. + +Known bugs weakness and other + +wxPython and wxGlade seem to conspire to insure that the layout can never +be exactly what you have in mind. + +Some of the controls don't behave as one might like. wx spin controls +and spin boxes only support integers so it is rather a nuisance to make +units come out nice. In the process of development I came up with a reasonable +kluge so there is a mixture of approaches. + +Enjoy. + +M. Revnell 2006-Jan-06 diff --git a/gr-uhd/apps/hf_radio/hfir.sci b/gr-uhd/apps/hf_radio/hfir.sci new file mode 100644 index 000000000..a2d5e2a62 --- /dev/null +++ b/gr-uhd/apps/hf_radio/hfir.sci @@ -0,0 +1,59 @@ +// designs a complex tap fir filter akin to the hilbert transformer. +// +// The hilbert transformer is classified as a linear phase fir +// with allpass magnitude response and 90 degree phase response for +// positive frequencies and -90 degrees phase for negative frequencies. +// Or, if you prefer, normalized frequencies between .5 and 1 since +// negative frequencies don't really have much meaning outside the complex +// domain. +// +// Normally one would use the hilbert transformer in one leg of a complex +// processing block and a compensating delay in the other. +// +// This one differs in the following respects: +// It is low pass with a cutoff of .078125 +// The filter is a lowpass kaiser windowed filter with parameter 3 +// The phase response is 45 degrees for positive frequencies and -45 +// for negative frequencies. +// The coefficent set is used in one path and the same coefficients +// are used time reversed in the other. This results in the net effect +// of +/- 90 degrees as in the usual hilbert application. +// +// The coefficient set can be used in the gnuradio frequency translating +// fir filter for ssb demodulation. +// +// This isn't as computationally efficient as using the hilbert transformer +// and compensating delay but fascinating none the less. +// +// This program is for the scilab language a very powerful free math +// package similar to Matlab with infinitely better price/performace. +// +// compute the prototype lowpass fir +// length is 255 (odd) for the same symmetry reasons as the hilbert transformer + +len = 1023; +l2 = floor(len/2); +md = l2 + 1; +l3 = md + 1; + +h = wfir( 'lp', len, [10.0/256 0], 'kr', [3 0] ); + +H = fft(h); + +H(1:l2)=H(1:l2)*exp(%i*%pi/4); +H(md)=0+%i*0; +H(l3:len)=H(l3:len)*exp(-%i*%pi/4); + +j=real(ifft(H)); +k(1:len)=j(len:-1:1); +x=j+%i.*k; +X=fft(x); +plot(abs(X)) + +f = file('open','taps') +for i=(1:len) + fprintf( f, '%f%+fj', j(i), k(i) ) +end + +file('close',f) + diff --git a/gr-uhd/apps/hf_radio/input.py b/gr-uhd/apps/hf_radio/input.py new file mode 100644 index 000000000..2626ddfb5 --- /dev/null +++ b/gr-uhd/apps/hf_radio/input.py @@ -0,0 +1,78 @@ +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +# Basic USRP setup and control. +# It's only ever been tried with a basic rx daughter card. +# +# Imagine that the gnuradio boilerplate is here. +# +# M. Revnell 2005-Dec + +from gnuradio import gr +from gnuradio import uhd + +class uhd_input(gr.hier_block2): + def __init__( self, address, samp_rate): + gr.hier_block2.__init__(self, "uhd_input", + gr.io_signature(0,0,0), + gr.io_signature(1,1,gr.sizeof_gr_complex)) + + self.src = uhd.usrp_source(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.src.set_samp_rate(samp_rate) + self.usrp_rate = self.src.get_samp_rate() + + self.connect(self.src, self) + + def set_freq(self, target_freq): + """ + Set the center frequency. + + @param target_freq: frequency in Hz + @type: bool + """ + r = self.src.set_center_freq(target_freq, 0) + + if r: + self.freq = target_freq + return True + else: + return False + + def get_freq(self): + return self.src.get_center_freq(0) + + def set_gain(self, gain): + self.gain = gain + self.src.set_gain(gain, 0) + + def add_options(parser): + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=None, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + add_options = staticmethod(add_options) diff --git a/gr-uhd/apps/hf_radio/output.py b/gr-uhd/apps/hf_radio/output.py new file mode 100644 index 000000000..8ee7dc54c --- /dev/null +++ b/gr-uhd/apps/hf_radio/output.py @@ -0,0 +1,42 @@ +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + + +# Audio output with a volume control. +# +# M. Revnell 2005-Dec + +from gnuradio import gr, gru +from gnuradio import audio + +class output( gr.hier_block2 ): + def __init__( self, rate, device ): + gr.hier_block2.__init__(self, "output", + gr.io_signature(1,1,gr.sizeof_float), + gr.io_signature(0,0,0)) + + self.vol = gr.multiply_const_ff( 0.1 ) + self.out = audio.sink( int(rate), device ) + + self.connect( self, self.vol, self.out ) + + def set( self, val ): + self.vol.set_k( val ) + diff --git a/gr-uhd/apps/hf_radio/radio.py b/gr-uhd/apps/hf_radio/radio.py new file mode 100755 index 000000000..32e26c7eb --- /dev/null +++ b/gr-uhd/apps/hf_radio/radio.py @@ -0,0 +1,319 @@ +#!/usr/bin/env python +# +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +# GUI interactions and high level connections handled here. +# +# Interacts with classes defined by wxGlade in ui.py. +# +# M. Revnell 2006-Jan + +from threading import * +import wx +import wx.lib.evtmgr as em +import time + +from gnuradio import gr, gru, eng_notation, optfir +from gnuradio import audio +from gnuradio import uhd +from gnuradio import blks2 +from gnuradio.wxgui import fftsink2 +from gnuradio.wxgui import waterfallsink2 +from gnuradio.wxgui import scopesink2 + +from input import * +from output import * +from ssbdemod import * +from ssbagc import * +from ui import * +from math import log10 + +class radio_top_block( gr.top_block ): + def __init__( self ): + gr.top_block.__init__(self, "radio_top_block") + + self.address = "addr=192.168.11.2" + self.samp_rate = 256e3 + self.freq = -2.5e6 + self.gain = 0 + self.src = uhd_input( self.address, + self.samp_rate) + self.src.set_freq(self.freq) + self.src.set_gain(self.gain) + + self.fe_rate = self.src.usrp_rate + self.filter_decim = 1 + self.audio_decim = 16 + self.demod_rate = self.fe_rate / self.filter_decim + self.audio_rate = self.demod_rate / self.audio_decim + self.audio_dev = "pulse" + + self.demod = ssb_demod( self.demod_rate, self.audio_rate ) + self.agc = agc() + self.out = output( self.audio_rate, self.audio_dev ) + + self.connect( self.src, self.demod, self.agc, self.out ) + + def tune( self, freq ): + fe_target = -freq + self.src.set_freq( fe_target ) + demod_cf = fe_target - self.src.get_freq() + self.demod.tune( demod_cf ) + +class radio_frame( ui_frame ): + def __init__( self, block, *args, **kwds ): + ui_frame.__init__( self, *args, **kwds ) + self.block = block + self.freq_disp.SetRange(0, 30e6) + f = self.block.src.freq + self.freq_disp.SetValue( -f ) + self.volume.SetRange( 0, 20 ) + self.pga.SetRange( 0, 20 ) + self.rssi_range = 1 + self.rssi.SetRange( self.rssi_range ) + self.agc_max.SetValue( str( self.rssi_range ) ) + self.spin_e0.SetValue( 50 ) + self.spin_e1.SetValue( 50 ) + self.spin_e2.SetValue( 50 ) + self.spin_e3.SetValue( 50 ) + self.spin_e4.SetValue( 50 ) + self.spin_e5.SetValue( 50 ) + self.spin_e6.SetValue( 50 ) + bw = 3.3e3 + self.bandwidth.SetValue( str( bw ) ) + self.block.demod.set_bw( bw ) + self.bw_spin.SetValue( 5 ) + agc_gain = self.block.agc.gain.k() + self.agc_gain_s.SetValue( 5 ) + self.agc_gain.SetValue( str( agc_gain ) ) + agc_ref = self.block.agc.offs.k() + self.agc_ref.SetValue( str( agc_ref ) ) + self.agc_ref_s.SetValue( 5 ) + + self.fespectrum = fftsink2.fft_sink_c( + self.fe_panel, + fft_size=512, + sample_rate = block.fe_rate, + ref_scale = 1.0, + ref_level = 20.0, + y_divs = 12, + avg_alpha = 0.1) + + self.ifspectrum = fftsink2.fft_sink_c( + self.if_panel, + fft_size=512, + sample_rate = block.audio_rate, + ref_scale = 1.0, + ref_level = 20.0, + y_divs = 12, + avg_alpha = 0.1) + + self.fespectrum.win.Bind( wx.EVT_MOTION, self.fe_mouse) + self.fespectrum.win.Bind( wx.EVT_LEFT_DOWN, self.fe_click) + + block.connect( block.src.src, self.fespectrum ) + block.connect( block.demod.xlate, self.ifspectrum ) + + def agc_ref_up( self, event ): + self.agc_ref_s.SetValue( 5 ) + r = float( self.agc_ref.GetValue() ) + r = r + 5 + self.agc_ref.SetValue( str( r ) ) + self.block.agc.offs.set_k( r ) + + def agc_ref_down( self, event ): + self.agc_ref_s.SetValue( 5 ) + r = float( self.agc_ref.GetValue() ) + r = r - 5 + self.agc_ref.SetValue( str( r ) ) + self.block.agc.offs.set_k( r ) + + def agc_gain_up( self, event ): + self.agc_gain_s.SetValue( 5 ) + g = float(self.agc_gain.GetValue()) + g = g + 10 + self.agc_gain.SetValue( str( g ) ) + self.block.agc.gain.set_k( g ) + + def agc_gain_down( self, event ): + self.agc_gain_s.SetValue( 5 ) + g = float(self.agc_gain.GetValue()) + g = g - 10 + self.agc_gain.SetValue( str( g ) ) + self.block.agc.gain.set_k( g ) + + def fe_mouse( self, event ): + f = int(self.freq_disp.GetValue()) + f = f+((event.GetX()-346.)*(400./610.))*1000 + self.fespectrum.win.SetToolTip( + wx.ToolTip( eng_notation.num_to_str(f))) + + def fe_click( self, event ): + f = int(self.freq_disp.GetValue()) + f = f+((event.GetX()-346.)*(400./610.))*1000 + self.tune( f ) + + def setrssi( self, level ): + if level < 0: + level = 0 + if level > self.rssi_range: + self.rssi_range = level + self.rssi.SetRange( level ) + self.agc_max.SetValue( str( level )) + self.rssi.SetValue( level ) + self.agc_level.SetValue( str( level )) + + def tune_evt( self, event ): + f = self.freq_disp.GetValue() + self.tune( f ) + + def tune( self, frequency ): + self.freq_disp.SetValue( frequency ) + self.block.tune( frequency ) + + def up_e0( self, event ): + self.spin_e0.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e0 ) + + def down_e0( self, event ): + self.spin_e0.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e0 ) + + def up_e1( self, event ): + self.spin_e1.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e1 ) + + def down_e1( self, event ): + self.spin_e1.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e1 ) + + def up_e2( self, event ): + self.spin_e2.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e2 ) + + def down_e2( self, event ): + self.spin_e2.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e2 ) + + def up_e3( self, event ): + self.spin_e3.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e3 ) + + def down_e3( self, event ): + self.spin_e3.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e3 ) + + def up_e4( self, event ): + self.spin_e4.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e4 ) + + def down_e4( self, event ): + self.spin_e4.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e4 ) + + def up_e5( self, event ): + self.spin_e5.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e5 ) + + def down_e5( self, event ): + self.spin_e5.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e5 ) + + def up_e6( self, event ): + self.spin_e6.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() + 1e6 ) + + def down_e6( self, event ): + self.spin_e6.SetValue( 50 ) + self.tune( self.freq_disp.GetValue() - 1e6 ) + + def event_pga( self, event ): + self.block.src.set_gain(self.pga.GetValue()) + + def event_vol( self, event ): + self.block.out.set( self.volume.GetValue()/20.0 ) + + def set_usb( self, event ): + self.block.demod.upper_sb() + + def set_lsb( self, event ): + self.block.demod.lower_sb() + + def set_am( self, event ): + self.block.demod.set_am() + + def bw_up( self, event ): + self.bw_spin.SetValue( 5 ) + bw = float(self.bandwidth.GetValue()) + bw = bw + 20.0 + if bw > 10e3: + bw = 10e3 + self.bandwidth.SetValue( str( bw ) ) + self.block.demod.set_bw( bw ) + + def bw_down( self, event ): + self.bw_spin.SetValue( 5 ) + bw = float(self.bandwidth.GetValue()) + bw = bw - 20.0 + if bw < 50: + bw = 50 + self.bandwidth.SetValue( str( bw ) ) + self.block.demod.set_bw( bw ) + + +class radio( wx.App ): + def OnInit( self ): + self.block = radio_top_block() + self.frame = radio_frame( self.block, None, -1, "HF Receiver" ) + self.frame.Show( True ) + self.SetTopWindow( self.frame ) + self.block.start() + return True + +def rssi_function(): + global radio_obj + global sig_probe + + go = True + while go: + try: + level = sig_probe.level() + wx.CallAfter( radio_obj.frame.setrssi, level ) + time.sleep( .1 ) + except: + go = False + +def main(): + global radio_obj, sig_probe + + radio_obj = radio( 0 ) + sig_probe = gr.probe_signal_f() + radio_obj.block.connect(radio_obj.block.agc.offs, sig_probe) + + thread2 = Thread( target = rssi_function ) + thread2.start() + + radio_obj.MainLoop() + + +if __name__ == "__main__": + main() + diff --git a/gr-uhd/apps/hf_radio/radio.xml b/gr-uhd/apps/hf_radio/radio.xml new file mode 100644 index 000000000..81daa19b0 --- /dev/null +++ b/gr-uhd/apps/hf_radio/radio.xml @@ -0,0 +1,441 @@ +<?xml version="1.0"?> +<!-- generated by wxGlade 0.4 on Fri Jan 6 09:51:36 2006 --> + +<application path="/root/radio/ui.py" name="" class="" option="0" language="python" top_window="" encoding="UTF-8" use_gettext="0" overwrite="0" use_new_namespace="1" for_version="2.6"> + <object class="ui_frame" name="frame_1" base="EditFrame"> + <style>wxDEFAULT_FRAME_STYLE</style> + <title>frame_1</title> + <object class="wxStaticBoxSizer" name="sizer_1" base="EditStaticBoxSizer"> + <orient>wxVERTICAL</orient> + <label>sizer_1</label> + <object class="sizeritem"> + <flag>wxEXPAND</flag> + <border>0</border> + <option>1</option> + <object class="wxBoxSizer" name="sizer_2" base="EditBoxSizer"> + <orient>wxHORIZONTAL</orient> + <object class="sizeritem"> + <flag>wxEXPAND</flag> + <border>0</border> + <option>1</option> + <object class="wxBoxSizer" name="sizer_3" base="EditBoxSizer"> + <orient>wxVERTICAL</orient> + <object class="sizeritem"> + <flag>wxEXPAND|wxADJUST_MINSIZE</flag> + <border>0</border> + <option>1</option> + <object class="wxSpinCtrl" name="freq_disp" base="EditSpinCtrl"> + <font> + <size>32</size> + <family>default</family> + <style>normal</style> + <weight>normal</weight> + <underlined>0</underlined> + <face></face> + </font> + <events> + <handler event="EVT_SPINCTRL">tune_evt</handler> + </events> + </object> + </object> + <object class="sizeritem"> + <flag>wxEXPAND</flag> + <border>0</border> + <option>1</option> + <object class="wxGridSizer" name="grid_sizer_1" base="EditGridSizer"> + <hgap>0</hgap> + <rows>2</rows> + <cols>3</cols> + <vgap>0</vgap> + <object class="sizeritem"> + <flag>wxEXPAND</flag> + <border>0</border> + <option>1</option> + <object class="wxGridSizer" name="grid_sizer_2" base="EditGridSizer"> + <hgap>0</hgap> + <rows>1</rows> + <cols>7</cols> + <vgap>0</vgap> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + <border>0</border> + <option>0</option> + <object class="wxSpinButton" name="spin_e6" base="EditSpinButton"> + <events> + <handler event="EVT_SPIN_UP">up_e6</handler> + <handler event="EVT_SPIN_DOWN">down_e6</handler> + </events> + </object> + </object> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + 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class="wxSpinButton" name="spin_e2" base="EditSpinButton"> + <events> + <handler event="EVT_SPIN_UP">up_e2</handler> + <handler event="EVT_SPIN_DOWN">down_e2</handler> + </events> + </object> + </object> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + <border>0</border> + <option>0</option> + <object class="wxSpinButton" name="spin_e1" base="EditSpinButton"> + <events> + <handler event="EVT_SPIN_UP">up_e1</handler> + <handler event="EVT_SPIN_DOWN">down_e1</handler> + </events> + </object> + </object> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + <border>0</border> + <option>0</option> + <object class="wxSpinButton" name="spin_e0" base="EditSpinButton"> + <events> + <handler event="EVT_SPIN_UP">up_e0</handler> + <handler event="EVT_SPIN_DOWN">down_e0</handler> + </events> + </object> + </object> + </object> + </object> + <object class="sizeritem"> + <flag>wxEXPAND</flag> + <border>0</border> + <option>1</option> + <object class="wxPanel" name="panel_1" base="EditPanel"> + <style>wxTAB_TRAVERSAL</style> + </object> + </object> + <object class="sizeritem"> + <flag>wxEXPAND</flag> + <border>0</border> + <option>1</option> + <object class="wxPanel" name="panel_2" base="EditPanel"> + <style>wxTAB_TRAVERSAL</style> + </object> + </object> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + <border>0</border> + <option>0</option> + <object class="wxButton" name="button_lsb" base="EditButton"> + <label>LSB</label> + <events> + <handler event="EVT_BUTTON">set_lsb</handler> + </events> + </object> + </object> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + <border>0</border> + <option>0</option> + <object class="wxButton" name="button_usb" base="EditButton"> + <label>USB</label> + <events> + <handler event="EVT_BUTTON">set_usb</handler> + </events> + </object> + </object> + <object class="sizeritem"> + <flag>wxADJUST_MINSIZE</flag> + <border>0</border> + <option>0</option> + <object class="wxButton" name="button_am" 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+-0.000046+0.000196j +-0.000081+0.000188j +-0.000113+0.000173j +-0.000140+0.000150j +-0.000161+0.000121j +-0.000174+0.000089j +-0.000180+0.000054j +-0.000177+0.000020j +-0.000167-0.000013j +-0.000150-0.000041j +-0.000127-0.000063j +-0.000100-0.000077j +-0.000071-0.000084j +-0.000044-0.000080j +-0.000020-0.000066j +-0.000009-0.000035j diff --git a/gr-uhd/apps/hf_radio/ssbagc.py b/gr-uhd/apps/hf_radio/ssbagc.py new file mode 100644 index 000000000..494712863 --- /dev/null +++ b/gr-uhd/apps/hf_radio/ssbagc.py @@ -0,0 +1,70 @@ +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. + + +# post detection agc processing +# +# This agc strategy is copied more or less verbatim from +# weaver_isb_am1_usrp3.py by cswiger. +# +# Thanks. +# +# Then modified in a variety of ways. +# +# There doesn't appear to be a way to hook multiple blocks to the +# input port when building a hier block like this. Thus the +# split below. +# +# Basic operation. +# Power is estimated by squaring the input. +# Low pass filter using a 1 pole iir. +# The time constant can be tweaked by changing the taps. +# Currently there is no implementation to change this while operating +# a potentially useful addition. +# The log block turns this into dB +# gain adjusts the agc authority. +# +# M. Revnell 2006-Jan + +from gnuradio import gr + +class agc( gr.hier_block2 ): + def __init__( self ): + gr.hier_block2.__init__(self, "agc", + gr.io_signature(1,1,gr.sizeof_float), + gr.io_signature(1,1,gr.sizeof_float)) + + self.split = gr.multiply_const_ff( 1 ) + self.sqr = gr.multiply_ff( ) + self.int0 = gr.iir_filter_ffd( [.004, 0], [0, .999] ) + self.offs = gr.add_const_ff( -30 ) + self.gain = gr.multiply_const_ff( 70 ) + self.log = gr.nlog10_ff( 10, 1 ) + self.agc = gr.divide_ff( ) + + self.connect(self, self.split) + self.connect(self.split, (self.agc, 0)) + self.connect(self.split, (self.sqr, 0)) + self.connect(self.split, (self.sqr, 1)) + self.connect(self.sqr, self.int0) + self.connect(self.int0, self.log) + self.connect(self.log, self.offs) + self.connect(self.offs, self.gain) + self.connect(self.gain, (self.agc, 1)) + self.connect(self.agc, self) diff --git a/gr-uhd/apps/hf_radio/ssbdemod.py b/gr-uhd/apps/hf_radio/ssbdemod.py new file mode 100644 index 000000000..072d317a2 --- /dev/null +++ b/gr-uhd/apps/hf_radio/ssbdemod.py @@ -0,0 +1,116 @@ +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +# This tries to push the hilbert transform for ssb demod back into the +# freq. xlating filter. +# +# The starting point for this was weaver_isb_am1_usrp3.py. +# +# The tap coefficients for freq_xlating_fir_filter_ccf were generated +# externally and are read from a file because I didn't want to learn how +# to make fir filters with arbitrary phase response using python numeric +# facilities. +# +# They were generated using Scilab which I am already familiar with. +# M. Revnell Jan 06 + +from gnuradio import gr + +class ssb_demod( gr.hier_block2 ): + def __init__( self, if_rate, af_rate ): + gr.hier_block2.__init__(self, "ssb_demod", + gr.io_signature(1,1,gr.sizeof_gr_complex), + gr.io_signature(1,1,gr.sizeof_float)) + + self.if_rate = int(if_rate) + self.af_rate = int(af_rate) + self.if_decim = int(if_rate / af_rate) + self.sideband = 1 + + self.xlate_taps = ([complex(v) for v in file('ssb_taps').readlines()]) + + self.audio_taps = gr.firdes.low_pass( + 1.0, + self.af_rate, + 3e3, + 600, + gr.firdes.WIN_HAMMING ) + + self.xlate = gr.freq_xlating_fir_filter_ccc( + self.if_decim, + self.xlate_taps, + 0, + self.if_rate ) + + self.split = gr.complex_to_float() + + self.lpf = gr.fir_filter_fff( + 1, self.audio_taps ) + + self.sum = gr.add_ff( ) + self.am_sel = gr.multiply_const_ff( 0 ) + self.sb_sel = gr.multiply_const_ff( 1 ) + self.mixer = gr.add_ff() + self.am_det = gr.complex_to_mag() + + self.connect(self, self.xlate) + self.connect(self.xlate, self.split) + self.connect((self.split, 0), (self.sum, 0)) + self.connect((self.split, 1), (self.sum, 1)) + self.connect(self.sum, self.sb_sel) + self.connect(self.xlate, self.am_det) + self.connect(self.sb_sel, (self.mixer, 0)) + self.connect(self.am_det, self.am_sel) + self.connect(self.am_sel, (self.mixer, 1)) + self.connect(self.mixer, self.lpf) + self.connect(self.lpf, self) + + def upper_sb( self ): + self.xlate.set_taps([v.conjugate() for v in self.xlate_taps]) + self.sb_sel.set_k( 1.0 ) + self.am_sel.set_k( 0.0 ) + + def lower_sb( self ): + self.xlate.set_taps(self.xlate_taps) + self.sb_sel.set_k( 1.0 ) + self.am_sel.set_k( 0.0 ) + + def set_am( self ): + taps = gr.firdes.low_pass( 1.0, + self.if_rate, + 5e3, + 2e3, + gr.firdes.WIN_HAMMING ) + self.xlate.set_taps( taps ) + self.sb_sel.set_k( 0.0 ) + self.am_sel.set_k( 1.0 ) + + def set_bw( self, bw ): + self.audio_taps = gr.firdes.low_pass( + 1.0, + self.af_rate, + bw, + 600, + gr.firdes.WIN_HAMMING ) + self.lpf.set_taps( self.audio_taps ) + + def tune( self, freq ): + self.xlate.set_center_freq( freq ) + diff --git a/gr-uhd/apps/hf_radio/startup.py b/gr-uhd/apps/hf_radio/startup.py new file mode 100644 index 000000000..093369b57 --- /dev/null +++ b/gr-uhd/apps/hf_radio/startup.py @@ -0,0 +1 @@ +from radio import * diff --git a/gr-uhd/apps/hf_radio/ui.py b/gr-uhd/apps/hf_radio/ui.py new file mode 100755 index 000000000..551a30415 --- /dev/null +++ b/gr-uhd/apps/hf_radio/ui.py @@ -0,0 +1,316 @@ +#!/usr/bin/env python +# +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +# -*- coding: UTF-8 -*- +# generated by wxGlade 0.4 on Mon Jan 2 19:02:03 2006 + +import wx + +class ui_frame(wx.Frame): + def __init__(self, *args, **kwds): + # begin wxGlade: ui_frame.__init__ + kwds["style"] = wx.DEFAULT_FRAME_STYLE + wx.Frame.__init__(self, *args, **kwds) + self.sizer_1_staticbox = wx.StaticBox(self, -1, "sizer_1") + self.freq_disp = wx.SpinCtrl(self, -1, "", min=0, max=100) + self.spin_e6 = wx.SpinButton(self, -1 ) + self.spin_e5 = wx.SpinButton(self, -1 ) + self.spin_e4 = wx.SpinButton(self, -1 ) + self.spin_e3 = wx.SpinButton(self, -1 ) + self.spin_e2 = wx.SpinButton(self, -1 ) + self.spin_e1 = wx.SpinButton(self, -1 ) + self.spin_e0 = wx.SpinButton(self, -1 ) + self.panel_1 = wx.Panel(self, -1) + self.panel_2 = wx.Panel(self, -1) + self.button_lsb = wx.Button(self, -1, "LSB") + self.button_usb = wx.Button(self, -1, "USB") + self.button_am = wx.Button(self, -1, "AM") + self.label_1 = wx.StaticText(self, -1, "VOLUME") + self.label_2 = wx.StaticText(self, -1, "PGA") + self.agc_level = wx.TextCtrl(self, -1, "") + self.label_6 = wx.StaticText(self, -1, "") + self.volume = wx.SpinCtrl(self, -1, "", min=0, max=100) + self.pga = wx.SpinCtrl(self, -1, "", min=0, max=100) + self.agc_max = wx.TextCtrl(self, -1, "") + self.label_7 = wx.StaticText(self, -1, "") + self.label_4 = wx.StaticText(self, -1, "AGC AUTHORITY") + self.label_5 = wx.StaticText(self, -1, "AGC REF LVL") + self.label_3 = wx.StaticText(self, -1, "BANDWIDTH") + self.label_8 = wx.StaticText(self, -1, "") + self.agc_gain = wx.TextCtrl(self, -1, "") + self.agc_gain_s = wx.SpinButton(self, -1 ) + self.agc_ref = wx.TextCtrl(self, -1, "") + self.agc_ref_s = wx.SpinButton(self, -1 ) + self.bandwidth = wx.TextCtrl(self, -1, "") + self.bw_spin = wx.SpinButton(self, -1 ) + self.label_9 = wx.StaticText(self, -1, "") + self.rssi = wx.Gauge(self, -1, 10, style=wx.GA_HORIZONTAL|wx.GA_SMOOTH) + self.fe_panel = wx.Panel(self, -1) + self.if_panel = wx.Panel(self, -1) + + self.__set_properties() + self.__do_layout() + + self.Bind(wx.EVT_SPINCTRL, self.tune_evt, self.freq_disp) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e6, self.spin_e6) + self.Bind(wx.EVT_SPIN_UP, self.up_e6, self.spin_e6) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e5, self.spin_e5) + self.Bind(wx.EVT_SPIN_UP, self.up_e5, self.spin_e5) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e4, self.spin_e4) + self.Bind(wx.EVT_SPIN_UP, self.up_e4, self.spin_e4) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e3, self.spin_e3) + self.Bind(wx.EVT_SPIN_UP, self.up_e3, self.spin_e3) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e2, self.spin_e2) + self.Bind(wx.EVT_SPIN_UP, self.up_e2, self.spin_e2) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e1, self.spin_e1) + self.Bind(wx.EVT_SPIN_UP, self.up_e1, self.spin_e1) + self.Bind(wx.EVT_SPIN_DOWN, self.down_e0, self.spin_e0) + self.Bind(wx.EVT_SPIN_UP, self.up_e0, self.spin_e0) + self.Bind(wx.EVT_BUTTON, self.set_lsb, self.button_lsb) + self.Bind(wx.EVT_BUTTON, self.set_usb, self.button_usb) + self.Bind(wx.EVT_BUTTON, self.set_am, self.button_am) + self.Bind(wx.EVT_SPINCTRL, self.event_vol, self.volume) + self.Bind(wx.EVT_SPINCTRL, self.event_pga, self.pga) + self.Bind(wx.EVT_SPIN_DOWN, self.agc_gain_down, self.agc_gain_s) + self.Bind(wx.EVT_SPIN_UP, self.agc_gain_up, self.agc_gain_s) + self.Bind(wx.EVT_SPIN_DOWN, self.agc_ref_down, self.agc_ref_s) + self.Bind(wx.EVT_SPIN_UP, self.agc_ref_up, self.agc_ref_s) + self.Bind(wx.EVT_SPIN_DOWN, self.bw_down, self.bw_spin) + self.Bind(wx.EVT_SPIN_UP, self.bw_up, self.bw_spin) + # end wxGlade + + def __set_properties(self): + # begin wxGlade: ui_frame.__set_properties + self.SetTitle("frame_1") + self.freq_disp.SetFont(wx.Font(32, wx.DEFAULT, wx.NORMAL, wx.NORMAL, 0, "")) + self.rssi.SetMinSize((315, 10)) + self.rssi.SetForegroundColour(wx.Colour(255, 0, 0)) + # end wxGlade + + def __do_layout(self): + # begin wxGlade: ui_frame.__do_layout + sizer_1 = wx.StaticBoxSizer(self.sizer_1_staticbox, wx.VERTICAL) + sizer_2 = wx.BoxSizer(wx.HORIZONTAL) + sizer_4 = wx.BoxSizer(wx.VERTICAL) + grid_sizer_4 = wx.GridSizer(2, 4, 0, 0) + sizer_5 = wx.BoxSizer(wx.HORIZONTAL) + sizer_7 = wx.BoxSizer(wx.HORIZONTAL) + sizer_6 = wx.BoxSizer(wx.HORIZONTAL) + grid_sizer_3 = wx.GridSizer(2, 4, 0, 0) + sizer_3 = wx.BoxSizer(wx.VERTICAL) + grid_sizer_1 = wx.GridSizer(2, 3, 0, 0) + grid_sizer_2 = wx.GridSizer(1, 7, 0, 0) + sizer_3.Add(self.freq_disp, 1, wx.EXPAND|wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e6, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e5, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e4, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e3, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e2, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e1, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_2.Add(self.spin_e0, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(grid_sizer_2, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.panel_1, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.panel_2, 1, wx.EXPAND, 0) + grid_sizer_1.Add(self.button_lsb, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.button_usb, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_1.Add(self.button_am, 0, wx.ADJUST_MINSIZE, 0) + sizer_3.Add(grid_sizer_1, 1, wx.EXPAND, 0) + sizer_2.Add(sizer_3, 1, wx.EXPAND, 0) + grid_sizer_3.Add(self.label_1, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.label_2, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.agc_level, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.label_6, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.volume, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.pga, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.agc_max, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_3.Add(self.label_7, 0, wx.ADJUST_MINSIZE, 0) + sizer_4.Add(grid_sizer_3, 1, wx.EXPAND, 0) + grid_sizer_4.Add(self.label_4, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_4.Add(self.label_5, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_4.Add(self.label_3, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_4.Add(self.label_8, 0, wx.ADJUST_MINSIZE, 0) + sizer_6.Add(self.agc_gain, 0, wx.ADJUST_MINSIZE, 0) + sizer_6.Add(self.agc_gain_s, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_4.Add(sizer_6, 1, wx.EXPAND, 0) + sizer_7.Add(self.agc_ref, 0, wx.ADJUST_MINSIZE, 0) + sizer_7.Add(self.agc_ref_s, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_4.Add(sizer_7, 1, wx.EXPAND, 0) + sizer_5.Add(self.bandwidth, 0, wx.ADJUST_MINSIZE, 0) + sizer_5.Add(self.bw_spin, 0, wx.ADJUST_MINSIZE, 0) + grid_sizer_4.Add(sizer_5, 1, wx.EXPAND, 0) + grid_sizer_4.Add(self.label_9, 0, wx.ADJUST_MINSIZE, 0) + sizer_4.Add(grid_sizer_4, 1, wx.EXPAND, 0) + sizer_4.Add(self.rssi, 1, wx.EXPAND|wx.ADJUST_MINSIZE, 0) + sizer_2.Add(sizer_4, 1, wx.EXPAND, 0) + sizer_1.Add(sizer_2, 1, wx.EXPAND, 0) + sizer_1.Add(self.fe_panel, 1, wx.EXPAND, 0) + sizer_1.Add(self.if_panel, 1, wx.EXPAND, 0) + self.SetAutoLayout(True) + self.SetSizer(sizer_1) + sizer_1.Fit(self) + sizer_1.SetSizeHints(self) + self.Layout() + # end wxGlade + + def down_e6(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e6' not implemented" + event.Skip() + + def up_e6(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e6' not implemented" + event.Skip() + + def down_e5(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e5' not implemented" + event.Skip() + + def up_e5(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e5' not implemented" + event.Skip() + + def down_e4(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e4' not implemented" + event.Skip() + + def up_e4(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e4' not implemented" + event.Skip() + + def down_e3(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e3' not implemented" + event.Skip() + + def up_e3(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e3' not implemented" + event.Skip() + + def down_e2(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e2' not implemented" + event.Skip() + + def up_e2(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e2' not implemented" + event.Skip() + + def down_e1(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e1' not implemented" + event.Skip() + + def up_e1(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e1' not implemented" + event.Skip() + + def down_e0(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `down_e0' not implemented" + event.Skip() + + def up_e0(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `up_e0' not implemented" + event.Skip() + + def event_vol(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `event_vol' not implemented" + event.Skip() + + def event_pga(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `event_pga' not implemented" + event.Skip() + + def set_lsb(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `set_lsb' not implemented" + event.Skip() + + def set_usb(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `set_usb' not implemented" + event.Skip() + + def set_am(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `set_am' not implemented" + event.Skip() + + def set_bw(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `set_bw' not implemented" + event.Skip() + + def tune_evt(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `tune_evt' not implemented" + event.Skip() + + def bw_down(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `bw_down' not implemented" + event.Skip() + + def bw_up(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `bw_up' not implemented" + event.Skip() + + def agc_gain_down(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `agc_gain_down' not implemented" + event.Skip() + + def agc_gain_up(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `agc_gain_up' not implemented" + event.Skip() + + def agc_ref_down(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `agc_ref_down' not implemented" + event.Skip() + + def agc_ref_up(self, event): # wxGlade: ui_frame.<event_handler> + print "Event handler `agc_ref_up' not implemented" + event.Skip() + +# end of class ui_frame + + +class RadioFrame(wx.Frame): + def __init__(self, *args, **kwds): + # content of this block not found: did you rename this class? + pass + + def __set_properties(self): + # content of this block not found: did you rename this class? + pass + + def __do_layout(self): + # content of this block not found: did you rename this class? + pass + +# end of class RadioFrame + + +class MyFrame(wx.Frame): + def __init__(self, *args, **kwds): + # content of this block not found: did you rename this class? + pass + + def __set_properties(self): + # content of this block not found: did you rename this class? + pass + + def __do_layout(self): + # content of this block not found: did you rename this class? + pass + +# end of class MyFrame + + diff --git a/gr-uhd/apps/uhd_fft.py b/gr-uhd/apps/uhd_fft.py index 87952ef3a..0f0c274e8 100755 --- a/gr-uhd/apps/uhd_fft.py +++ b/gr-uhd/apps/uhd_fft.py @@ -20,16 +20,23 @@ # Boston, MA 02110-1301, USA. # -from gnuradio import gr, gru +from gnuradio import gr from gnuradio import uhd from gnuradio import eng_notation from gnuradio.eng_option import eng_option -from gnuradio.wxgui import stdgui2, fftsink2, waterfallsink2, scopesink2, form, slider from optparse import OptionParser -import wx + import sys import numpy +try: + from gnuradio.wxgui import stdgui2, form, slider + from gnuradio.wxgui import fftsink2, waterfallsink2, scopesink2 + import wx +except ImportError: + sys.stderr.write("Error importing GNU Radio's wxgui. Please make sure gr-wxgui is installed.\n") + sys.exit(1) + class app_top_block(stdgui2.std_top_block): def __init__(self, frame, panel, vbox, argv): stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) @@ -38,7 +45,8 @@ class app_top_block(stdgui2.std_top_block): self.panel = panel parser = OptionParser(option_class=eng_option) - parser.add_option("-a", "--address", type="string", default="addr=192.168.10.2", + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", help="Address of UHD device, [default=%default]") parser.add_option("-A", "--antenna", type="string", default=None, help="select Rx Antenna where appropriate") @@ -74,7 +82,8 @@ class app_top_block(stdgui2.std_top_block): if options.waterfall: self.scope = \ - waterfallsink2.waterfall_sink_c (panel, fft_size=1024, sample_rate=input_rate) + waterfallsink2.waterfall_sink_c (panel, fft_size=1024, + sample_rate=input_rate) self.frame.SetMinSize((800, 420)) elif options.oscilloscope: self.scope = scopesink2.scope_sink_c(panel, sample_rate=input_rate) @@ -114,9 +123,8 @@ class app_top_block(stdgui2.std_top_block): if self.show_debug_info: self.myform['samprate'].set_value(self.u.get_samp_rate()) - self.myform['fs@gbe'].set_value(input_rate) - self.myform['baseband'].set_value(0) - self.myform['ddc'].set_value(0) + self.myform['rffreq'].set_value(0) + self.myform['dspfreq'].set_value(0) if not(self.set_freq(options.freq)): self._set_status_msg("Failed to set initial frequency") @@ -137,14 +145,16 @@ class app_top_block(stdgui2.std_top_block): hbox.Add((5,0), 0, 0) myform['freq'] = form.float_field( parent=self.panel, sizer=hbox, label="Center freq", weight=1, - callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + callback=myform.check_input_and_call(_form_set_freq, + self._set_status_msg)) hbox.Add((5,0), 0, 0) g = self.u.get_gain_range() # some configurations don't have gain control if g.stop() > g.start(): - myform['gain'] = form.slider_field(parent=self.panel, sizer=hbox, label="Gain", + myform['gain'] = form.slider_field(parent=self.panel, + sizer=hbox, label="Gain", weight=3, min=int(g.start()), max=int(g.stop()), callback=self.set_gain) @@ -175,19 +185,16 @@ class app_top_block(stdgui2.std_top_block): hbox.Add((5,0), 0) myform['samprate'] = form.float_field( parent=panel, sizer=hbox, label="Sample Rate", - callback=myform.check_input_and_call(_form_set_samp_rate, self._set_status_msg)) + callback=myform.check_input_and_call(_form_set_samp_rate, + self._set_status_msg)) hbox.Add((5,0), 1) - myform['fs@gbe'] = form.static_float_field( - parent=panel, sizer=hbox, label="Fs@GbE") + myform['rffreq'] = form.static_float_field( + parent=panel, sizer=hbox, label="RF Freq.") hbox.Add((5,0), 1) - myform['baseband'] = form.static_float_field( - parent=panel, sizer=hbox, label="Analog BB") - - hbox.Add((5,0), 1) - myform['ddc'] = form.static_float_field( - parent=panel, sizer=hbox, label="DDC") + myform['dspfreq'] = form.static_float_field( + parent=panel, sizer=hbox, label="DSP Freq.") hbox.Add((5,0), 0) vbox.Add(hbox, 0, wx.EXPAND) @@ -198,19 +205,13 @@ class app_top_block(stdgui2.std_top_block): @param target_freq: frequency in Hz @rypte: bool - - Tuning is a two step process. First we ask the front-end to - tune as close to the desired frequency as it can. Then we use - the result of that operation and our target_frequency to - determine the value for the digital down converter. """ r = self.u.set_center_freq(target_freq, 0) if r: - self.myform['freq'].set_value(target_freq) # update displayed value - if self.show_debug_info: - self.myform['baseband'].set_value(r.actual_rf_freq) - self.myform['ddc'].set_value(r.actual_dsp_freq) + self.myform['freq'].set_value(self.u.get_center_freq()) + self.myform['rffreq'].set_value(r.actual_rf_freq) + self.myform['dspfreq'].set_value(r.actual_dsp_freq) if not self.options.oscilloscope: self.scope.set_baseband_freq(target_freq) return True @@ -228,7 +229,6 @@ class app_top_block(stdgui2.std_top_block): self.scope.set_sample_rate(input_rate) if self.show_debug_info: # update displayed values self.myform['samprate'].set_value(self.u.get_samp_rate()) - self.myform['fs@gbe'].set_value(input_rate) # uhd set_samp_rate never fails; always falls back to closest requested. return True diff --git a/gr-uhd/apps/uhd_rx_nogui.py b/gr-uhd/apps/uhd_rx_nogui.py new file mode 100755 index 000000000..6f860b820 --- /dev/null +++ b/gr-uhd/apps/uhd_rx_nogui.py @@ -0,0 +1,233 @@ +#!/usr/bin/env python +# +# Copyright 2006,2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gru, uhd, optfir, audio, blks2 +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import sys + +""" +This example application demonstrates receiving and demodulating +different types of signals using the USRP. + +A receive chain is built up of the following signal processing +blocks: + +USRP - Daughter board source generating complex baseband signal. +CHAN - Low pass filter to select channel bandwidth +RFSQL - RF squelch zeroing output when input power below threshold +AGC - Automatic gain control leveling signal at [-1.0, +1.0] +DEMOD - Demodulation block appropriate to selected signal type. + This converts the complex baseband to real audio frequencies, + and applies an appropriate low pass decimating filter. +CTCSS - Optional tone squelch zeroing output when tone is not present. +RSAMP - Resampler block to convert audio sample rate to user specified + sound card output rate. +AUDIO - Audio sink for playing final output to speakers. + +The following are required command line parameters: + +-f FREQ USRP receive frequency +-m MOD Modulation type, select from AM, FM, or WFM + +The following are optional command line parameters: + +-R SUBDEV Daughter board specification, defaults to first found +-c FREQ Calibration offset. Gets added to receive frequency. + Defaults to 0.0 Hz. +-g GAIN Daughterboard gain setting. Defaults to mid-range. +-o RATE Sound card output rate. Defaults to 32000. Useful if + your sound card only accepts particular sample rates. +-r RFSQL RF squelch in db. Defaults to -50.0. +-p FREQ CTCSS frequency. Opens squelch when tone is present. + +Once the program is running, ctrl-break (Ctrl-C) stops operation. + +Please see fm_demod.py and am_demod.py for details of the demodulation +blocks. +""" + +# (device_rate, channel_rate, audio_rate, channel_pass, channel_stop, demod) +demod_params = { + 'AM' : (256e3, 16e3, 16e3, 5000, 8000, blks2.demod_10k0a3e_cf), + 'FM' : (256e3, 32e3, 8e3, 8000, 9000, blks2.demod_20k0f3e_cf), + 'WFM' : (320e3, 320e3, 32e3, 80000, 115000, blks2.demod_200kf3e_cf) + } + +class uhd_src(gr.hier_block2): + """ + Create a UHD source object supplying complex floats. + + Selects user supplied subdevice or chooses first available one. + + Calibration value is the offset from the tuned frequency to + the actual frequency. + """ + def __init__(self, address, samp_rate, gain=None, calibration=0.0): + gr.hier_block2.__init__(self, "uhd_src", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature + + self._src = uhd.usrp_source(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self._src.set_samp_rate(samp_rate) + dev_rate = self._src.get_samp_rate() + self._samp_rate = samp_rate + + # Resampler to get to exactly samp_rate no matter what dev_rate is + self._rrate = samp_rate / dev_rate + self._resamp = blks2.pfb_arb_resampler_ccf(self._rrate) + + # If no gain specified, set to midrange + if gain is None: + g = self._src.get_gain_range() + gain = (g.start()+g.stop())/2.0 + print "Using gain: ", gain + self._src.set_gain(gain) + + self._cal = calibration + self.connect(self._src, self._resamp, self) + + def tune(self, freq): + r = self._src.set_center_freq(freq+self._cal, 0) + + def rate(self): + return self._samp_rate + +class app_top_block(gr.top_block): + def __init__(self, options): + gr.top_block.__init__(self) + self.options = options + + (dev_rate, channel_rate, audio_rate, + channel_pass, channel_stop, demod) = demod_params[options.modulation] + + DEV = uhd_src(options.address, # UHD device address + dev_rate, # device sample rate + options.gain, # Receiver gain + options.calibration) # Frequency offset + DEV.tune(options.frequency) + + if_rate = DEV.rate() + channel_decim = int(if_rate // channel_rate) + audio_decim = int(channel_rate // audio_rate) + + CHAN_taps = optfir.low_pass(1.0, # Filter gain + if_rate, # Sample rate + channel_pass, # One sided modulation bandwidth + channel_stop, # One sided channel bandwidth + 0.1, # Passband ripple + 60) # Stopband attenuation + + CHAN = gr.freq_xlating_fir_filter_ccf(channel_decim, # Decimation rate + CHAN_taps, # Filter taps + 0.0, # Offset frequency + if_rate) # Sample rate + + RFSQL = gr.pwr_squelch_cc(options.rf_squelch, # Power threshold + 125.0/channel_rate, # Time constant + int(channel_rate/20), # 50ms rise/fall + False) # Zero, not gate output + + AGC = gr.agc_cc(1.0/channel_rate, # Time constant + 1.0, # Reference power + 1.0, # Initial gain + 1.0) # Maximum gain + + DEMOD = demod(channel_rate, audio_decim) + + # From RF to audio + #self.connect(DEV, CHAN, RFSQL, AGC, DEMOD) + self.connect(DEV, CHAN, DEMOD) + + # Optionally add CTCSS and RSAMP if needed + tail = DEMOD + if options.ctcss != None and options.ctcss > 60.0: + CTCSS = gr.ctcss_squelch_ff(audio_rate, # Sample rate + options.ctcss) # Squelch tone + self.connect(DEMOD, CTCSS) + tail = CTCSS + + if options.output_rate != audio_rate: + out_lcm = gru.lcm(audio_rate, options.output_rate) + out_interp = int(out_lcm // audio_rate) + out_decim = int(out_lcm // options.output_rate) + RSAMP = blks2.rational_resampler_fff(out_interp, out_decim) + self.connect(tail, RSAMP) + tail = RSAMP + + # Send to audio output device + AUDIO = audio.sink(int(options.output_rate), + options.audio_output) + self.connect(tail, AUDIO) + +def main(): + parser = OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate [default=%default]") + parser.add_option("-f", "--frequency", type="eng_float", + default=None, metavar="Hz", + help="set receive frequency to Hz [default=%default]") + parser.add_option("-c", "--calibration", type="eng_float", + default=0.0, metavar="Hz", + help="set frequency offset to Hz [default=%default]") + parser.add_option("-g", "--gain", type="int", + metavar="dB", default=None, + help="set RF gain [default is midpoint]") + parser.add_option("-m", "--modulation", type="choice", choices=('AM','FM','WFM'), + metavar="TYPE", default=None, + help="set modulation type (AM,FM) [default=%default]") + parser.add_option("-o", "--output-rate", type="eng_float", + default=32000, metavar="RATE", + help="set audio output rate to RATE [default=%default]") + parser.add_option("-r", "--rf-squelch", type="eng_float", + default=-50.0, metavar="dB", + help="set RF squelch to dB [default=%default]") + parser.add_option("-p", "--ctcss", type="float", + default=None, metavar="FREQ", + help="set CTCSS squelch to FREQ [default=%default]") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + (options, args) = parser.parse_args() + + if options.frequency is None: + sys.stderr.write("Must supply receive frequency with -f.\n") + sys.exit(1) + + if options.modulation is None: + sys.stderr.write("Must supply a modulation type (AM, FM, WFM).\n") + sys.exit(1) + + tb = app_top_block(options) + try: + tb.run() + except KeyboardInterrupt: + pass + +if __name__ == "__main__": + main() diff --git a/gr-uhd/apps/uhd_siggen.py b/gr-uhd/apps/uhd_siggen.py new file mode 100755 index 000000000..921ba44b5 --- /dev/null +++ b/gr-uhd/apps/uhd_siggen.py @@ -0,0 +1,350 @@ +#!/usr/bin/env python +# +# Copyright 2008,2009,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +DESC_KEY = 'desc' +SAMP_RATE_KEY = 'samp_rate' +LINK_RATE_KEY = 'link_rate' +GAIN_KEY = 'gain' +TX_FREQ_KEY = 'tx_freq' +DSP_FREQ_KEY = 'dsp_freq' +RF_FREQ_KEY = 'rf_freq' +AMPLITUDE_KEY = 'amplitude' +AMPL_RANGE_KEY = 'ampl_range' +WAVEFORM_FREQ_KEY = 'waveform_freq' +WAVEFORM_OFFSET_KEY = 'waveform_offset' +WAVEFORM2_FREQ_KEY = 'waveform2_freq' +FREQ_RANGE_KEY = 'freq_range' +GAIN_RANGE_KEY = 'gain_range' +TYPE_KEY = 'type' + +def setter(ps, key, val): ps[key] = val + +from gnuradio import gr, uhd, eng_notation +from gnuradio.gr.pubsub import pubsub +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import sys +import math + +n2s = eng_notation.num_to_str + +waveforms = { gr.GR_SIN_WAVE : "Complex Sinusoid", + gr.GR_CONST_WAVE : "Constant", + gr.GR_GAUSSIAN : "Gaussian Noise", + gr.GR_UNIFORM : "Uniform Noise", + "2tone" : "Two Tone", + "sweep" : "Sweep" } + +# +# GUI-unaware GNU Radio flowgraph. This may be used either with command +# line applications or GUI applications. +# +class top_block(gr.top_block, pubsub): + def __init__(self, options, args): + gr.top_block.__init__(self) + pubsub.__init__(self) + self._verbose = options.verbose + + #initialize values from options + self._setup_usrpx(options) + self[SAMP_RATE_KEY] = options.samp_rate + self[TX_FREQ_KEY] = options.tx_freq + self[AMPLITUDE_KEY] = options.amplitude + self[WAVEFORM_FREQ_KEY] = options.waveform_freq + self[WAVEFORM_OFFSET_KEY] = options.offset + self[WAVEFORM2_FREQ_KEY] = options.waveform2_freq + self[DSP_FREQ_KEY] = 0 + self[RF_FREQ_KEY] = 0 + + #subscribe set methods + self.subscribe(SAMP_RATE_KEY, self.set_samp_rate) + self.subscribe(GAIN_KEY, self.set_gain) + self.subscribe(TX_FREQ_KEY, self.set_freq) + self.subscribe(AMPLITUDE_KEY, self.set_amplitude) + self.subscribe(WAVEFORM_FREQ_KEY, self.set_waveform_freq) + self.subscribe(WAVEFORM2_FREQ_KEY, self.set_waveform2_freq) + self.subscribe(TYPE_KEY, self.set_waveform) + + #force update on pubsub keys + for key in (SAMP_RATE_KEY, GAIN_KEY, TX_FREQ_KEY, + AMPLITUDE_KEY, WAVEFORM_FREQ_KEY, + WAVEFORM_OFFSET_KEY, WAVEFORM2_FREQ_KEY): + self[key] = self[key] + self[TYPE_KEY] = options.type #set type last + + def _setup_usrpx(self, options): + self._u = uhd.usrp_sink(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + self._u.set_samp_rate(options.samp_rate) + if(options.antenna): + self._u.set_antenna(options.antenna) + + self.publish(DESC_KEY, lambda: str(self._u)) + self.publish(FREQ_RANGE_KEY, self._u.get_freq_range) + self.publish(GAIN_RANGE_KEY, self._u.get_gain_range) + self.publish(GAIN_KEY, self._u.get_gain) + if self._verbose: + print str(self._u) + + def _set_tx_amplitude(self, ampl): + """ + Sets the transmit amplitude sent to the USRP + @param ampl the amplitude or None for automatic + """ + ampl_range = self[AMPL_RANGE_KEY] + if ampl is None: + ampl = (ampl_range[1] - ampl_range[0])*0.15 + ampl_range[0] + self[AMPLITUDE_KEY] = max(ampl_range[0], min(ampl, ampl_range[1])) + + def set_samp_rate(self, sr): + self._u.set_samp_rate(sr) + sr = self._u.get_samp_rate() + + if self[TYPE_KEY] in (gr.GR_SIN_WAVE, gr.GR_CONST_WAVE): + self._src.set_sampling_freq(self[SAMP_RATE_KEY]) + elif self[TYPE_KEY] == "2tone": + self._src1.set_sampling_freq(self[SAMP_RATE_KEY]) + self._src2.set_sampling_freq(self[SAMP_RATE_KEY]) + elif self[TYPE_KEY] == "sweep": + self._src1.set_sampling_freq(self[SAMP_RATE_KEY]) + self._src2.set_sampling_freq(self[WAVEFORM_FREQ_KEY]*2*math.pi/self[SAMP_RATE_KEY]) + else: + return True # Waveform not yet set + + if self._verbose: + print "Set sample rate to:", sr + + return True + + def set_gain(self, gain): + if gain is None: + g = self[GAIN_RANGE_KEY] + gain = float(g[0]+g[1])/2 + if self._verbose: + print "Using auto-calculated mid-point TX gain" + self[GAIN_KEY] = gain + return + self._u.set_gain(gain) + if self._verbose: + print "Set TX gain to:", gain + + def set_freq(self, target_freq): + + if target_freq is None: + f = self[FREQ_RANGE_KEY] + target_freq = float(f[0]+f[1])/2.0 + if self._verbose: + print "Using auto-calculated mid-point frequency" + self[TX_FREQ_KEY] = target_freq + return + + tr = self._u.set_center_freq(target_freq) + fs = "%sHz" % (n2s(target_freq),) + if tr is not None: + self._freq = target_freq + self[DSP_FREQ_KEY] = tr.actual_dsp_freq + self[RF_FREQ_KEY] = tr.actual_rf_freq + if self._verbose: + print "Set center frequency to", self._u.get_center_freq() + print "Tx RF frequency: %sHz" % (n2s(tr.actual_rf_freq),) + print "Tx DSP frequency: %sHz" % (n2s(tr.actual_dsp_freq),) + elif self._verbose: + print "Failed to set freq." + return tr + + def set_waveform_freq(self, freq): + if self[TYPE_KEY] == gr.GR_SIN_WAVE: + self._src.set_frequency(freq) + elif self[TYPE_KEY] == "2tone": + self._src1.set_frequency(freq) + elif self[TYPE_KEY] == 'sweep': + #there is no set sensitivity, redo fg + self[TYPE_KEY] = self[TYPE_KEY] + return True + + def set_waveform2_freq(self, freq): + if freq is None: + self[WAVEFORM2_FREQ_KEY] = -self[WAVEFORM_FREQ_KEY] + return + if self[TYPE_KEY] == "2tone": + self._src2.set_frequency(freq) + elif self[TYPE_KEY] == "sweep": + self._src1.set_frequency(freq) + return True + + def set_waveform(self, type): + self.lock() + self.disconnect_all() + if type == gr.GR_SIN_WAVE or type == gr.GR_CONST_WAVE: + self._src = gr.sig_source_c(self[SAMP_RATE_KEY], # Sample rate + type, # Waveform type + self[WAVEFORM_FREQ_KEY], # Waveform frequency + self[AMPLITUDE_KEY], # Waveform amplitude + self[WAVEFORM_OFFSET_KEY]) # Waveform offset + elif type == gr.GR_GAUSSIAN or type == gr.GR_UNIFORM: + self._src = gr.noise_source_c(type, self[AMPLITUDE_KEY]) + elif type == "2tone": + self._src1 = gr.sig_source_c(self[SAMP_RATE_KEY], + gr.GR_SIN_WAVE, + self[WAVEFORM_FREQ_KEY], + self[AMPLITUDE_KEY]/2.0, + 0) + if(self[WAVEFORM2_FREQ_KEY] is None): + self[WAVEFORM2_FREQ_KEY] = -self[WAVEFORM_FREQ_KEY] + + self._src2 = gr.sig_source_c(self[SAMP_RATE_KEY], + gr.GR_SIN_WAVE, + self[WAVEFORM2_FREQ_KEY], + self[AMPLITUDE_KEY]/2.0, + 0) + self._src = gr.add_cc() + self.connect(self._src1,(self._src,0)) + self.connect(self._src2,(self._src,1)) + elif type == "sweep": + # rf freq is center frequency + # waveform_freq is total swept width + # waveform2_freq is sweep rate + # will sweep from (rf_freq-waveform_freq/2) to (rf_freq+waveform_freq/2) + if self[WAVEFORM2_FREQ_KEY] is None: + self[WAVEFORM2_FREQ_KEY] = 0.1 + + self._src1 = gr.sig_source_f(self[SAMP_RATE_KEY], + gr.GR_TRI_WAVE, + self[WAVEFORM2_FREQ_KEY], + 1.0, + -0.5) + self._src2 = gr.frequency_modulator_fc(self[WAVEFORM_FREQ_KEY]*2*math.pi/self[SAMP_RATE_KEY]) + self._src = gr.multiply_const_cc(self[AMPLITUDE_KEY]) + self.connect(self._src1,self._src2,self._src) + else: + raise RuntimeError("Unknown waveform type") + + self.connect(self._src, self._u) + self.unlock() + + if self._verbose: + print "Set baseband modulation to:", waveforms[type] + if type == gr.GR_SIN_WAVE: + print "Modulation frequency: %sHz" % (n2s(self[WAVEFORM_FREQ_KEY]),) + print "Initial phase:", self[WAVEFORM_OFFSET_KEY] + elif type == "2tone": + print "Tone 1: %sHz" % (n2s(self[WAVEFORM_FREQ_KEY]),) + print "Tone 2: %sHz" % (n2s(self[WAVEFORM2_FREQ_KEY]),) + elif type == "sweep": + print "Sweeping across %sHz to %sHz" % (n2s(-self[WAVEFORM_FREQ_KEY]/2.0),n2s(self[WAVEFORM_FREQ_KEY]/2.0)) + print "Sweep rate: %sHz" % (n2s(self[WAVEFORM2_FREQ_KEY]),) + print "TX amplitude:", self[AMPLITUDE_KEY] + + + def set_amplitude(self, amplitude): + if amplitude < 0.0 or amplitude > 1.0: + if self._verbose: + print "Amplitude out of range:", amplitude + return False + + if self[TYPE_KEY] in (gr.GR_SIN_WAVE, gr.GR_CONST_WAVE, gr.GR_GAUSSIAN, gr.GR_UNIFORM): + self._src.set_amplitude(amplitude) + elif self[TYPE_KEY] == "2tone": + self._src1.set_amplitude(amplitude/2.0) + self._src2.set_amplitude(amplitude/2.0) + elif self[TYPE_KEY] == "sweep": + self._src.set_k(amplitude) + else: + return True # Waveform not yet set + + if self._verbose: + print "Set amplitude to:", amplitude + return True + +def get_options(): + usage="%prog: [options]" + + parser = OptionParser(option_class=eng_option, usage=usage) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, + help="set sample rate (bandwidth) [default=%default]") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-f", "--tx-freq", type="eng_float", default=None, + help="Set carrier frequency to FREQ [default=mid-point]", + metavar="FREQ") + parser.add_option("-x", "--waveform-freq", type="eng_float", default=0, + help="Set baseband waveform frequency to FREQ [default=%default]") + parser.add_option("-y", "--waveform2-freq", type="eng_float", default=None, + help="Set 2nd waveform frequency to FREQ [default=%default]") + parser.add_option("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE, + help="Generate a carrier modulated by a complex sine wave", + default=gr.GR_SIN_WAVE) + parser.add_option("--const", dest="type", action="store_const", const=gr.GR_CONST_WAVE, + help="Generate a constant carrier") + parser.add_option("--offset", type="eng_float", default=0, + help="Set waveform phase offset to OFFSET [default=%default]") + parser.add_option("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN, + help="Generate Gaussian random output") + parser.add_option("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM, + help="Generate Uniform random output") + parser.add_option("--2tone", dest="type", action="store_const", const="2tone", + help="Generate Two Tone signal for IMD testing") + parser.add_option("--sweep", dest="type", action="store_const", const="sweep", + help="Generate a swept sine wave") + parser.add_option("", "--amplitude", type="eng_float", default=0.15, + help="Set output amplitude to AMPL (0.0-1.0) [default=%default]", + metavar="AMPL") + parser.add_option("-v", "--verbose", action="store_true", default=False, + help="Use verbose console output [default=%default]") + + (options, args) = parser.parse_args() + + return (options, args) + +# If this script is executed, the following runs. If it is imported, +# the below does not run. +def main(): + if gr.enable_realtime_scheduling() != gr.RT_OK: + print "Note: failed to enable realtime scheduling, continuing" + + # Grab command line options and create top block + try: + (options, args) = get_options() + tb = top_block(options, args) + + except RuntimeError, e: + print e + sys.exit(1) + + tb.start() + raw_input('Press Enter to quit: ') + tb.stop() + tb.wait() + +# Make sure to create the top block (tb) within a function: +# That code in main will allow tb to go out of scope on return, +# which will call the decontructor on usrp and stop transmit. +# Whats odd is that grc works fine with tb in the __main__, +# perhaps its because the try/except clauses around tb. +if __name__ == "__main__": + main() diff --git a/gr-uhd/apps/uhd_siggen_gui.py b/gr-uhd/apps/uhd_siggen_gui.py new file mode 100755 index 000000000..2ef6ea40f --- /dev/null +++ b/gr-uhd/apps/uhd_siggen_gui.py @@ -0,0 +1,318 @@ +#!/usr/bin/env python +# +# Copyright 2009,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +import wx +from gnuradio import gr +from gnuradio.gr.pubsub import pubsub +from gnuradio.wxgui import gui, forms +import uhd_siggen +import sys, math + +class app_gui(pubsub): + def __init__(self, frame, panel, vbox, top_block, options, args): + pubsub.__init__(self) + self.frame = frame # Use for top-level application window frame + self.panel = panel # Use as parent class for created windows + self.vbox = vbox # Use as sizer for created windows + self.tb = top_block # GUI-unaware flowgraph class + self.options = options # Supplied command-line options + self.args = args # Supplied command-line arguments + self.build_gui() + + # Event response handlers + def evt_set_status_msg(self, msg): + self.frame.SetStatusText(msg, 0) + + # GUI construction + def build_gui(self): + self.vbox.AddSpacer(5) + self.vbox.AddStretchSpacer() + ################################################## + # Baseband controls + ################################################## + bb_vbox = forms.static_box_sizer(parent=self.panel, label="Baseband Modulation", orient=wx.VERTICAL, bold=True) + self.vbox.Add(bb_vbox, 0, wx.EXPAND) + sine_bb_hbox = wx.BoxSizer(wx.HORIZONTAL) + sweep_bb_hbox = wx.BoxSizer(wx.HORIZONTAL) + tone_bb_hbox = wx.BoxSizer(wx.HORIZONTAL) + self.vbox.AddSpacer(10) + self.vbox.AddStretchSpacer() + #callback to show/hide forms + def set_type(type): + sine_bb_hbox.ShowItems(type == gr.GR_SIN_WAVE) + sweep_bb_hbox.ShowItems(type == 'sweep') + tone_bb_hbox.ShowItems(type == '2tone') + self.vbox.Layout() + self.tb.subscribe(uhd_siggen.TYPE_KEY, set_type) + #create sine forms + sine_bb_hbox.AddSpacer(10) + forms.text_box( + parent=self.panel, sizer=sine_bb_hbox, + label='Frequency (Hz)', + ps=self.tb, + key=uhd_siggen.WAVEFORM_FREQ_KEY, + converter=forms.float_converter(), + ) + sine_bb_hbox.AddStretchSpacer() + #create sweep forms + sweep_bb_hbox.AddSpacer(10) + forms.text_box( + parent=self.panel, sizer=sweep_bb_hbox, + label='Sweep Width (Hz)', + ps=self.tb, + key=uhd_siggen.WAVEFORM_FREQ_KEY, + converter=forms.float_converter(), + ) + sweep_bb_hbox.AddStretchSpacer() + forms.text_box( + parent=self.panel, sizer=sweep_bb_hbox, + label='Sweep Rate (Hz)', + ps=self.tb, + key=uhd_siggen.WAVEFORM2_FREQ_KEY, + converter=forms.float_converter(), + ) + sweep_bb_hbox.AddStretchSpacer() + #create 2tone forms + tone_bb_hbox.AddSpacer(10) + forms.text_box( + parent=self.panel, sizer=tone_bb_hbox, + label='Tone 1 (Hz)', + ps=self.tb, + key=uhd_siggen.WAVEFORM_FREQ_KEY, + converter=forms.float_converter(), + ) + tone_bb_hbox.AddStretchSpacer() + forms.text_box( + parent=self.panel, sizer=tone_bb_hbox, + label='Tone 2 (Hz)', + ps=self.tb, + key=uhd_siggen.WAVEFORM2_FREQ_KEY, + converter=forms.float_converter(), + ) + tone_bb_hbox.AddStretchSpacer() + forms.radio_buttons( + parent=self.panel, sizer=bb_vbox, + choices=uhd_siggen.waveforms.keys(), + labels=uhd_siggen.waveforms.values(), + ps=self.tb, + key=uhd_siggen.TYPE_KEY, + style=wx.NO_BORDER | wx.RA_HORIZONTAL, + ) + bb_vbox.AddSpacer(10) + bb_vbox.Add(sine_bb_hbox, 0, wx.EXPAND) + bb_vbox.Add(sweep_bb_hbox, 0, wx.EXPAND) + bb_vbox.Add(tone_bb_hbox, 0, wx.EXPAND) + set_type(self.tb[uhd_siggen.TYPE_KEY]) + + ################################################## + # Frequency controls + ################################################## + fc_vbox = forms.static_box_sizer(parent=self.panel, + label="Center Frequency", + orient=wx.VERTICAL, + bold=True) + fc_vbox.AddSpacer(5) + # First row of frequency controls (center frequency) + freq_hbox = wx.BoxSizer(wx.HORIZONTAL) + fc_vbox.Add(freq_hbox, 0, wx.EXPAND) + fc_vbox.AddSpacer(10) + # Second row of frequency controls (results) + tr_hbox = wx.BoxSizer(wx.HORIZONTAL) + fc_vbox.Add(tr_hbox, 0, wx.EXPAND) + fc_vbox.AddSpacer(5) + # Add frequency controls to top window sizer + self.vbox.Add(fc_vbox, 0, wx.EXPAND) + self.vbox.AddSpacer(10) + self.vbox.AddStretchSpacer() + freq_hbox.AddSpacer(5) + forms.text_box( + parent=self.panel, sizer=freq_hbox, + proportion=1, + converter=forms.float_converter(), + ps=self.tb, + key=uhd_siggen.TX_FREQ_KEY, + ) + freq_hbox.AddSpacer(10) + + forms.slider( + parent=self.panel, sizer=freq_hbox, + proportion=2, + ps=self.tb, + key=uhd_siggen.TX_FREQ_KEY, + minimum=self.tb[uhd_siggen.FREQ_RANGE_KEY].start(), + maximum=self.tb[uhd_siggen.FREQ_RANGE_KEY].stop(), + num_steps=100, + ) + freq_hbox.AddSpacer(5) + tr_hbox.AddSpacer(5) + forms.static_text( + parent=self.panel, sizer=tr_hbox, + label='RF Frequency', + ps=self.tb, + key=uhd_siggen.RF_FREQ_KEY, + converter=forms.float_converter(), + proportion=1, + ) + tr_hbox.AddSpacer(10) + forms.static_text( + parent=self.panel, sizer=tr_hbox, + label='DSP Frequency', + ps=self.tb, + key=uhd_siggen.DSP_FREQ_KEY, + converter=forms.float_converter(), + proportion=1, + ) + tr_hbox.AddSpacer(5) + + ################################################## + # Amplitude controls + ################################################## + amp_hbox = forms.static_box_sizer(parent=self.panel, + label="Amplitude", + orient=wx.VERTICAL, + bold=True) + amp_hbox.AddSpacer(5) + # First row of amp controls (ampl) + lvl_hbox = wx.BoxSizer(wx.HORIZONTAL) + amp_hbox.Add(lvl_hbox, 0, wx.EXPAND) + amp_hbox.AddSpacer(10) + # Second row of amp controls (tx gain) + gain_hbox = wx.BoxSizer(wx.HORIZONTAL) + amp_hbox.Add(gain_hbox, 0, wx.EXPAND) + amp_hbox.AddSpacer(5) + self.vbox.Add(amp_hbox, 0, wx.EXPAND) + self.vbox.AddSpacer(10) + self.vbox.AddStretchSpacer() + lvl_hbox.AddSpacer(5) + forms.text_box( + parent=self.panel, sizer=lvl_hbox, + proportion=1, + converter=forms.float_converter(), + ps=self.tb, + key=uhd_siggen.AMPLITUDE_KEY, + label="Level (0.0-1.0)", + ) + lvl_hbox.AddSpacer(10) + forms.log_slider( + parent=self.panel, sizer=lvl_hbox, + proportion=2, + ps=self.tb, + key=uhd_siggen.AMPLITUDE_KEY, + min_exp=-6, + max_exp=0, + base=10, + num_steps=100, + ) + lvl_hbox.AddSpacer(5) + if self.tb[uhd_siggen.GAIN_RANGE_KEY].start() < self.tb[uhd_siggen.GAIN_RANGE_KEY].stop(): + gain_hbox.AddSpacer(5) + forms.text_box( + parent=self.panel, sizer=gain_hbox, + proportion=1, + converter=forms.float_converter(), + ps=self.tb, + key=uhd_siggen.GAIN_KEY, + label="TX Gain (dB)", + ) + gain_hbox.AddSpacer(10) + forms.slider( + parent=self.panel, sizer=gain_hbox, + proportion=2, + ps=self.tb, + key=uhd_siggen.GAIN_KEY, + minimum=self.tb[uhd_siggen.GAIN_RANGE_KEY].start(), + maximum=self.tb[uhd_siggen.GAIN_RANGE_KEY].stop(), + step_size=self.tb[uhd_siggen.GAIN_RANGE_KEY].step(), + ) + gain_hbox.AddSpacer(5) + + ################################################## + # Sample Rate controls + ################################################## + sam_hbox = forms.static_box_sizer(parent=self.panel, + label="Sample Rate", + orient=wx.HORIZONTAL, + bold=True) + self.vbox.Add(sam_hbox, 0, wx.EXPAND) + self.vbox.AddSpacer(10) + self.vbox.AddStretchSpacer() + sam_hbox.AddStretchSpacer(20) + forms.static_text( + parent=self.panel, sizer=sam_hbox, + label='Sample Rate (sps)', + ps=self.tb, + key=uhd_siggen.SAMP_RATE_KEY, + converter=forms.float_converter(), + ) + sam_hbox.AddStretchSpacer(20) + + ################################################## + # UHD status + ################################################## + u2_hbox = forms.static_box_sizer(parent=self.panel, + label="UHD Status", + orient=wx.HORIZONTAL, + bold=True) + self.vbox.Add(u2_hbox, 0, wx.EXPAND) + self.vbox.AddSpacer(10) + self.vbox.AddStretchSpacer() + u2_hbox.AddSpacer(10) + forms.static_text( + parent=self.panel, sizer=u2_hbox, + ps=self.tb, + key=uhd_siggen.DESC_KEY, + converter=forms.str_converter(), + ) + self.vbox.AddSpacer(5) + self.vbox.AddStretchSpacer() + +def main(): + try: + # Get command line parameters + (options, args) = uhd_siggen.get_options() + + # Create the top block using these + tb = uhd_siggen.top_block(options, args) + + # Create the GUI application + app = gui.app(top_block=tb, # Constructed top block + gui=app_gui, # User interface class + options=options, # Command line options + args=args, # Command line args + title="UHD Signal Generator", # Top window title + nstatus=1, # Number of status lines + start=True, # Whether to start flowgraph + realtime=True) # Whether to set realtime priority + + # And run it + app.MainLoop() + + except RuntimeError, e: + print e + sys.exit(1) + +# Make sure to create the top block (tb) within a function: That code +# in main will allow tb to go out of scope on return, which will call +# the decontructor on uhd device and stop transmit. Whats odd is that +# grc works fine with tb in the __main__, perhaps its because the +# try/except clauses around tb. +if __name__ == "__main__": main() diff --git a/gr-uhd/doc/.gitignore b/gr-uhd/doc/.gitignore new file mode 100644 index 000000000..b336cc7ce --- /dev/null +++ b/gr-uhd/doc/.gitignore @@ -0,0 +1,2 @@ +/Makefile +/Makefile.in diff --git a/gr-uhd/doc/Makefile.am b/gr-uhd/doc/Makefile.am new file mode 100644 index 000000000..eee3ebcf6 --- /dev/null +++ b/gr-uhd/doc/Makefile.am @@ -0,0 +1,27 @@ +# +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +include $(top_srcdir)/Makefile.common + +SUBDIRS = + +dist_gr_doc_DATA = \ + README.uhd diff --git a/gr-uhd/doc/README.uhd b/gr-uhd/doc/README.uhd new file mode 100644 index 000000000..ec8024c09 --- /dev/null +++ b/gr-uhd/doc/README.uhd @@ -0,0 +1,14 @@ +This is the GNU Radio UHD package. It is the interface to the UHD +library to connect to and send and receive data between the Ettus +Research, LLC product line. To use the UHD blocks, the Python +namespaces is in gnuradio.uhd, which would be normally imported +as: + + from gnuradio import uhd + +See the Doxygen documentation for details about the blocks available +in this package. A quick listing of the details can be found in Python +after importing by using: + + help(uhd) + diff --git a/gr-uhd/doc/uhd.dox b/gr-uhd/doc/uhd.dox new file mode 100644 index 000000000..f08fe2f06 --- /dev/null +++ b/gr-uhd/doc/uhd.dox @@ -0,0 +1,35 @@ +/*! \page page_uhd UHD Interface + +\section Introduction +This is the GNU Radio UHD package. It is the interface to the UHD +library to connect to and send and receive data between the Ettus +Research, LLC product line. To use the UHD blocks, the Python +namespaces is in gnuradio.uhd, which would be normally imported +as: + +\code + from gnuradio import uhd +\endcode + +The relevant blocks are listed in the \ref uhd_blk group. + +A quick listing of the details can be found in Python after importing +by using: + +\code + help(uhd) +\endcode + + +\section External Documentation + +Ettus Research keeps the comprehensive documentation to the underlying UHD driver, which can be found: + + http://files.ettus.com/uhd_docs/manual/html/ + +The UHD Doxygen page is located: + + http://files.ettus.com/uhd_docs/doxygen/html/index.html + + +*/ diff --git a/gr-uhd/examples/.gitignore b/gr-uhd/examples/.gitignore new file mode 100644 index 000000000..ad8a13c08 --- /dev/null +++ b/gr-uhd/examples/.gitignore @@ -0,0 +1,5 @@ +/Makefile +/Makefile.in +*.dat +*.32f +*.32fc diff --git a/gr-uhd/examples/Makefile.am b/gr-uhd/examples/Makefile.am new file mode 100644 index 000000000..b10b48928 --- /dev/null +++ b/gr-uhd/examples/Makefile.am @@ -0,0 +1,44 @@ +# +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +include $(top_srcdir)/Makefile.common + +SUBDIRS = multi-antenna + +ourdatadir = $(exampledir)/uhd + +dist_ourdata_SCRIPTS = \ + fm_tx4.py \ + fm_tx_2_daughterboards.py \ + max_power.py \ + usrp_am_mw_rcv.py \ + usrp_nbfm_ptt.py \ + usrp_nbfm_rcv.py \ + usrp_spectrum_sense.py \ + usrp_tv_rcv_nogui.py \ + usrp_tv_rcv.py \ + usrp_wfm_rcv2_nogui.py \ + usrp_wfm_rcv_fmdet.py \ + usrp_wfm_rcv_nogui.py \ + usrp_wfm_rcv_pll.py \ + usrp_wfm_rcv.py \ + usrp_wfm_rcv_sca.py \ + usrp_wxapt_rcv.py diff --git a/gr-uhd/examples/fm_tx4.py b/gr-uhd/examples/fm_tx4.py new file mode 100755 index 000000000..9b39752c1 --- /dev/null +++ b/gr-uhd/examples/fm_tx4.py @@ -0,0 +1,205 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +""" +Transmit N simultaneous narrow band FM signals. + +They will be centered at the frequency specified on the command line, +and will spaced at 25kHz steps from there. + +The program opens N files with names audio-N.dat where N is in [0,7]. +These files should contain floating point audio samples in the range [-1,1] +sampled at 32kS/sec. You can create files like this using +audio_to_file.py +""" + +from gnuradio import gr, eng_notation +from gnuradio import uhd +from gnuradio import blks2 +from gnuradio.eng_option import eng_option +from optparse import OptionParser +from usrpm import usrp_dbid +import math +import sys + +from gnuradio.wxgui import stdgui2, fftsink2 +import wx + + +######################################################## +# instantiate one transmit chain for each call + +class pipeline(gr.hier_block2): + def __init__(self, filename, lo_freq, audio_rate, if_rate): + + gr.hier_block2.__init__(self, "pipeline", + gr.io_signature(0, 0, 0), + gr.io_signature(1, 1, gr.sizeof_gr_complex)) + + try: + src = gr.file_source (gr.sizeof_float, filename, True) + except RuntimeError: + sys.stderr.write(("\nError: Could not open file '%s'\n\n" % \ + filename)) + sys.exit(1) + + print audio_rate, if_rate + fmtx = blks2.nbfm_tx (audio_rate, if_rate, max_dev=5e3, tau=75e-6) + + # Local oscillator + lo = gr.sig_source_c (if_rate, # sample rate + gr.GR_SIN_WAVE, # waveform type + lo_freq, #frequency + 1.0, # amplitude + 0) # DC Offset + mixer = gr.multiply_cc () + + self.connect (src, fmtx, (mixer, 0)) + self.connect (lo, (mixer, 1)) + self.connect (mixer, self) + +class fm_tx_block(stdgui2.std_top_block): + def __init__(self, frame, panel, vbox, argv): + MAX_CHANNELS = 7 + stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv) + + parser = OptionParser (option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=400e3, + help="set sample rate (bandwidth) [default=%default]") + parser.add_option("-f", "--freq", type="eng_float", default=None, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-n", "--nchannels", type="int", default=4, + help="number of Tx channels [1,4]") + #parser.add_option("","--debug", action="store_true", default=False, + # help="Launch Tx debugger") + (options, args) = parser.parse_args () + + if len(args) != 0: + parser.print_help() + sys.exit(1) + + if options.nchannels < 1 or options.nchannels > MAX_CHANNELS: + sys.stderr.write ("fm_tx4: nchannels out of range. Must be in [1,%d]\n" % MAX_CHANNELS) + sys.exit(1) + + if options.freq is None: + sys.stderr.write("fm_tx4: must specify frequency with -f FREQ\n") + parser.print_help() + sys.exit(1) + + # ---------------------------------------------------------------- + # Set up constants and parameters + + self.u = uhd.usrp_sink(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.usrp_rate = options.samp_rate + self.u.set_samp_rate(self.usrp_rate) + self.usrp_rate = self.u.get_samp_rate() + + self.sw_interp = 10 + self.audio_rate = self.usrp_rate / self.sw_interp # 32 kS/s + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2 + + self.set_gain(options.gain) + self.set_freq(options.freq) + + if(options.antenna): + self.u.set_antenna(options.antenna, 0) + + self.sum = gr.add_cc () + + # Instantiate N NBFM channels + step = 25e3 + offset = (0 * step, 1 * step, -1 * step, + 2 * step, -2 * step, 3 * step, -3 * step) + + for i in range (options.nchannels): + t = pipeline("audio-%d.dat" % (i % 4), offset[i], + self.audio_rate, self.usrp_rate) + self.connect(t, (self.sum, i)) + + self.gain = gr.multiply_const_cc (1.0 / options.nchannels) + + # connect it all + self.connect (self.sum, self.gain) + self.connect (self.gain, self.u) + + # plot an FFT to verify we are sending what we want + if 1: + post_mod = fftsink2.fft_sink_c(panel, title="Post Modulation", + fft_size=512, + sample_rate=self.usrp_rate, + y_per_div=20, + ref_level=40) + self.connect (self.gain, post_mod) + vbox.Add (post_mod.win, 1, wx.EXPAND) + + + #if options.debug: + # self.debugger = tx_debug_gui.tx_debug_gui(self.subdev) + # self.debugger.Show(True) + + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + + Tuning is a two step process. First we ask the front-end to + tune as close to the desired frequency as it can. Then we use + the result of that operation and our target_frequency to + determine the value for the digital up converter. Finally, we feed + any residual_freq to the s/w freq translater. + """ + + r = self.u.set_center_freq(target_freq, 0) + if r: + print "Frequency =", eng_notation.num_to_str(self.u.get_center_freq()) + return True + + return False + + def set_gain(self, gain): + self.u.set_gain(gain, 0) + + +def main (): + app = stdgui2.stdapp(fm_tx_block, "Multichannel FM Tx", nstatus=1) + app.MainLoop () + +if __name__ == '__main__': + main () diff --git a/gr-uhd/examples/fm_tx_2_daughterboards.py b/gr-uhd/examples/fm_tx_2_daughterboards.py new file mode 100755 index 000000000..36d237616 --- /dev/null +++ b/gr-uhd/examples/fm_tx_2_daughterboards.py @@ -0,0 +1,203 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +""" +Transmit 2 signals, one out each daughterboard. + +Outputs SSB (USB) signals on side A and side B at frequencies +specified on command line. + +Side A is 600 Hz tone. +Side B is 350 + 440 Hz tones. +""" + +from gnuradio import gr, uhd, blks2 +from gnuradio.eng_notation import num_to_str, str_to_num +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import math +import sys + + +class example_signal_0(gr.hier_block2): + """ + Sinusoid at 600 Hz. + """ + def __init__(self, sample_rate): + gr.hier_block2.__init__(self, "example_signal_0", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature + + src = gr.sig_source_c (sample_rate, # sample rate + gr.GR_SIN_WAVE, # waveform type + 600, # frequency + 1.0, # amplitude + 0) # DC Offset + + self.connect(src, self) + + +class example_signal_1(gr.hier_block2): + """ + North American dial tone (350 + 440 Hz). + """ + def __init__(self, sample_rate): + gr.hier_block2.__init__(self, "example_signal_1", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature + + src0 = gr.sig_source_c (sample_rate, # sample rate + gr.GR_SIN_WAVE, # waveform type + 350, # frequency + 1.0, # amplitude + 0) # DC Offset + + src1 = gr.sig_source_c (sample_rate, # sample rate + gr.GR_SIN_WAVE, # waveform type + 440, # frequency + 1.0, # amplitude + 0) # DC Offset + sum = gr.add_cc() + self.connect(src0, (sum, 0)) + self.connect(src1, (sum, 1)) + self.connect(sum, self) + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + usage="%prog: [options] tx-freq0 tx-freq1" + parser = OptionParser (option_class=eng_option, usage=usage) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=320e3, + help="set sample rate [default=%default]") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + (options, args) = parser.parse_args () + + if len(args) != 2: + parser.print_help() + raise SystemExit + else: + freq0 = str_to_num(args[0]) + freq1 = str_to_num(args[1]) + + # ---------------------------------------------------------------- + # Set up USRP to transmit on both daughterboards + + d = uhd.device_find(uhd.device_addr(options.address)) + uhd_type = d[0].get('type') + + self.u = uhd.usrp_sink(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=2) + + # Set up USRP system based on type + if(uhd_type == "usrp"): + self.u.set_subdev_spec("A:0 B:0") + tr0 = uhd.tune_request(freq0) + tr1 = uhd.tune_request(freq1) + + else: + if abs(freq0 - freq1) > 5.5e6: + sys.stderr.write("\nError: When not using two separate d'boards, frequencies must bewithin 5.5MHz of each other.\n") + raise SystemExit + + self.u.set_subdev_spec("A:0 A:0") + + mid_freq = (freq0 + freq1)/2.0 + tr0 = uhd.tune_request(freq0, rf_freq=mid_freq, + rf_freq_policy=uhd.tune_request.POLICY_MANUAL) + + tr1 = uhd.tune_request(freq1, rf_freq=mid_freq, + rf_freq_policy=uhd.tune_request.POLICY_MANUAL) + + # Use the tune requests to tune each channel + self.set_freq(tr0, 0) + self.set_freq(tr1, 1) + + self.usrp_rate = options.samp_rate + + self.u.set_samp_rate(self.usrp_rate) + dev_rate = self.u.get_samp_rate() + + # ---------------------------------------------------------------- + # build two signal sources, interleave them, amplify and + # connect them to usrp + + sig0 = example_signal_0(self.usrp_rate) + sig1 = example_signal_1(self.usrp_rate) + + intl = gr.interleave(gr.sizeof_gr_complex) + self.connect(sig0, (intl, 0)) + self.connect(sig1, (intl, 1)) + + # Correct for any difference in requested and actual rates + rrate = self.usrp_rate / dev_rate + resamp = blks2.pfb_arb_resampler_ccf(rrate) + + # and wire them up + self.connect(intl, resamp, self.u) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + self.set_gain(options.gain, 0) + self.set_gain(options.gain, 1) + + def set_freq(self, target_freq, chan): + """ + Set the center frequency we're interested in. + + @param side: 0 = side A, 1 = side B + @param target_freq: frequency in Hz + @rtype: bool + """ + + print "Tuning channel %s to %sHz" % \ + (chan, num_to_str(target_freq)) + + r = self.u.set_center_freq(target_freq, chan) + + if r: + return True + + else: + print " Set Frequency Failed!" + + return False + + def set_gain(self, gain, chan): + self.u.set_gain(gain, chan) + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-uhd/examples/max_power.py b/gr-uhd/examples/max_power.py new file mode 100755 index 000000000..44d3beeee --- /dev/null +++ b/gr-uhd/examples/max_power.py @@ -0,0 +1,142 @@ +#!/usr/bin/env python +# +# Copyright 2004,2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +""" +Setup USRP for maximum power consumption. +""" + + +from gnuradio import gr +from gnuradio import uhd +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +from gnuradio import eng_notation + +n2s = eng_notation.num_to_str + +# Set this to a huge number; UHD will adjust to the +# maximum the USRP xxxx device can handle +MAX_RATE = 1000e6 + +class build_block(gr.top_block): + def __init__(self, address, tx_enable, rx_enable): + gr.top_block.__init__(self) + + d = uhd.device_find(uhd.device_addr(address)) + uhd_type = d[0].get('type') + + print "\nFound '%s' at address '%s'" % \ + (uhd_type, address) + + # Test the type of USRP; if it's a USRP (v1), it has + # 2 channels; otherwise, it has 1 channel + if uhd_type == "usrp": + tx_nchan = 2 + rx_nchan = 2 + else: + tx_nchan = 1 + rx_nchan = 1 + + if tx_enable: + print "\nTRANSMIT CHAIN" + self.u_tx = uhd.usrp_sink(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=tx_nchan) + self.u_tx.set_samp_rate(MAX_RATE) + + self.tx_src0 = gr.sig_source_c(self.u_tx.get_samp_rate(), + gr.GR_CONST_WAVE, + 0, 1.0, 0) + + # Get dboard gain range and select maximum + tx_gain_range = self.u_tx.get_gain_range() + tx_gain = tx_gain_range.stop() + + # Get dboard freq range and select midpoint + tx_freq_range = self.u_tx.get_freq_range() + tx_freq_mid = (tx_freq_range.start() + tx_freq_range.stop())/2.0 + + for i in xrange(tx_nchan): + self.u_tx.set_center_freq (tx_freq_mid + i*1e6, i) + self.u_tx.set_gain(tx_gain, i) + + print "\nTx Sample Rate: %ssps" % (n2s(self.u_tx.get_samp_rate())) + for i in xrange(tx_nchan): + print "Tx Channel %d: " % (i) + print "\tFrequency = %sHz" % \ + (n2s(self.u_tx.get_center_freq(i))) + print "\tGain = %f dB" % (self.u_tx.get_gain(i)) + print "" + + self.connect (self.tx_src0, self.u_tx) + + if rx_enable: + print "\nRECEIVE CHAIN" + self.u_rx = uhd.usrp_source(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=rx_nchan) + self.rx_dst0 = gr.null_sink (gr.sizeof_gr_complex) + + self.u_rx.set_samp_rate(MAX_RATE) + + # Get dboard gain range and select maximum + rx_gain_range = self.u_rx.get_gain_range() + rx_gain = rx_gain_range.stop() + + # Get dboard freq range and select midpoint + rx_freq_range = self.u_rx.get_freq_range() + rx_freq_mid = (rx_freq_range.start() + rx_freq_range.stop())/2.0 + + for i in xrange(tx_nchan): + self.u_rx.set_center_freq (rx_freq_mid + i*1e6, i) + self.u_rx.set_gain(rx_gain, i) + + print "\nRx Sample Rate: %ssps" % (n2s(self.u_rx.get_samp_rate())) + for i in xrange(rx_nchan): + print "Rx Channel %d: " % (i) + print "\tFrequency = %sHz" % \ + (n2s(self.u_rx.get_center_freq(i))) + print "\tGain = %f dB" % (self.u_rx.get_gain(i)) + print "" + + self.connect (self.u_rx, self.rx_dst0) + +def main (): + parser = OptionParser (option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-t", action="store_true", dest="tx_enable", + default=False, help="enable Tx path") + parser.add_option("-r", action="store_true", dest="rx_enable", + default=False, help="enable Rx path") + (options, args) = parser.parse_args () + + tb = build_block (options.address, options.tx_enable, options.rx_enable) + + tb.start () + raw_input ('Press Enter to quit: ') + tb.stop () + +if __name__ == '__main__': + main () diff --git a/gr-uhd/examples/multi-antenna/.gitignore b/gr-uhd/examples/multi-antenna/.gitignore new file mode 100644 index 000000000..ff40c06f3 --- /dev/null +++ b/gr-uhd/examples/multi-antenna/.gitignore @@ -0,0 +1,11 @@ +/Makefile +/Makefile.in +/.la +/.lo +/.deps +/.libs +/*.la +/*.lo +/*.pyc +/*.pyo +/*.dat diff --git a/gr-uhd/examples/multi-antenna/Makefile.am b/gr-uhd/examples/multi-antenna/Makefile.am new file mode 100644 index 000000000..0cb944589 --- /dev/null +++ b/gr-uhd/examples/multi-antenna/Makefile.am @@ -0,0 +1,29 @@ +# +# Copyright 2006,2009 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +include $(top_srcdir)/Makefile.common + +ourdatadir = $(exampledir)/multi-antenna + +dist_ourdata_SCRIPTS = \ + multi_fft.py \ + multi_file.py \ + multi_scope.py diff --git a/gr-uhd/examples/multi-antenna/multi_fft.py b/gr-uhd/examples/multi-antenna/multi_fft.py new file mode 100755 index 000000000..d4c878c84 --- /dev/null +++ b/gr-uhd/examples/multi-antenna/multi_fft.py @@ -0,0 +1,152 @@ +#!/usr/bin/env python +# +# Copyright 2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, eng_notation +from gnuradio import uhd +from gnuradio.eng_option import eng_option +from gnuradio import eng_notation +from gnuradio import optfir +from optparse import OptionParser +from gnuradio.wxgui import stdgui2, fftsink2, waterfallsink2 +from gnuradio.wxgui import scopesink2, form, slider +import wx +import time +import os.path +import sys + +# required FPGA that can do 4 rx channels. + +class my_graph(stdgui2.std_top_block): + + def __init__(self, frame, panel, vbox, argv): + stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) + + self.frame = frame + self.panel = panel + + parser = OptionParser (option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, + help="set sample rate (bandwidth) [default=%default]") + parser.add_option("-f", "--freq", type="eng_float", default=None, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-F", "--filter", action="store_true", default=True, + help="Enable channel filter") + parser.add_option("-N", "--nchans", type="int", default=1, + help="set number of channels (default=%default)") + (options, args) = parser.parse_args() + + if len(args) != 0: + parser.print_help() + raise SystemExit + + self.nchans = options.nchans + + if options.filter: + sw_decim = 4 + else: + sw_decim = 1 + + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=self.nchans) + self.u.set_samp_rate(options.samp_rate) + input_rate = self.u.get_samp_rate() + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2 + + if options.freq is None: + # if no freq was specified, use the mid-point + r = self.u.get_freq_range() + options.freq = float(r.start()+r.stop())/2 + + self.set_gain(options.gain) + self.set_freq(options.freq) + + #if self.u.nddcs() < nchan: + # sys.stderr.write('This code requires an FPGA build with %d DDCs. This FPGA has only %d.\n' % ( + # nchan, self.u.nddcs())) + # raise SystemExit + + #if (len (self.subdev) < 4 or + # self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX or + # self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX): + # sys.stderr.write('This code requires a Basic Rx board on Sides A & B\n') + # sys.exit(1) + + # deinterleave four channels from FPGA + di = gr.deinterleave(gr.sizeof_gr_complex) + + self.connect(self.u, di) + + # taps for channel filter + chan_filt_coeffs = optfir.low_pass (1, # gain + input_rate, # sampling rate + 80e3, # passband cutoff + 115e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + #print len(chan_filt_coeffs) + + for i in range(self.nchans): + scope = fftsink2.fft_sink_c(panel, sample_rate=input_rate/sw_decim, + title="Input %d" % (i,), + ref_level=80, y_per_div=20) + vbox.Add(scope.win, 10, wx.EXPAND) + + if options.filter: + chan_filt = gr.fir_filter_ccf(sw_decim, chan_filt_coeffs) + self.connect((di, i), chan_filt, scope) + else: + self.connect((di, i), scope) + + def set_gain(self, gain): + for i in range(self.nchans): + self.u.set_gain(gain, i) + + + def set_freq(self, target_freq): + for i in range(self.nchans): + r = self.u.set_center_freq(target_freq, 0) + + if r: + return True + else: + print "set_freq: failed to set subdev[%d] freq to %f" % \ + (i, target_freq) + return False + +def main (): + app = stdgui2.stdapp(my_graph, "Multi Scope", nstatus=1) + app.MainLoop() + +if __name__ == '__main__': + main () diff --git a/gr-uhd/examples/multi-antenna/multi_file.py b/gr-uhd/examples/multi-antenna/multi_file.py new file mode 100755 index 000000000..87d9085e3 --- /dev/null +++ b/gr-uhd/examples/multi-antenna/multi_file.py @@ -0,0 +1,134 @@ +#!/usr/bin/env python + +from gnuradio import gr, gru, eng_notation +from gnuradio import usrp +from gnuradio.eng_option import eng_option +from gnuradio import eng_notation +from gnuradio import optfir +from optparse import OptionParser +from usrpm import usrp_dbid +import time +import os.path +import sys + +# required FPGA that can do 4 rx channels. + + +class my_graph(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser (option_class=eng_option) + #parser.add_option("-S", "--subdev", type="subdev", default=(0, None), + # help="select USRP Rx side A or B (default=A)") + parser.add_option("-d", "--decim", type="int", default=128, + help="set fgpa decimation rate to DECIM [default=%default]") + parser.add_option("-f", "--freq", type="eng_float", default=146.585e6, + help="set frequency to FREQ [default=%default])", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=20, + help="set gain in dB [default=%default]") + parser.add_option("-F", "--filter", action="store_true", default=True, + help="Enable channel filter") + parser.add_option("-o", "--output", type="string", default=None, + help="set output basename") + (options, args) = parser.parse_args() + + if len(args) != 0: + parser.print_help() + raise SystemExit + + if options.output is None: + parser.print_help() + sys.stderr.write("You must provide an output filename base with -o OUTPUT\n") + raise SystemExit + else: + basename = options.output + + nchan = 4 + nsecs = 4.0 + + if options.filter: + sw_decim = 4 + else: + sw_decim = 1 + + self.u = usrp.source_c(0, options.decim, fpga_filename="std_4rx_0tx.rbf") + if self.u.nddcs() < nchan: + sys.stderr.write('This code requires an FPGA build with %d DDCs. This FPGA has only %d.\n' % ( + nchan, self.u.nddcs())) + raise SystemExit + + if not self.u.set_nchannels(nchan): + sys.stderr.write('set_nchannels(%d) failed\n' % (nchan,)) + raise SystemExit + + input_rate = self.u.adc_freq() / self.u.decim_rate() + print "USB data rate = %s" % (eng_notation.num_to_str(input_rate),) + sink_data_rate = input_rate/sw_decim + print "Scope data rate = %s" % (eng_notation.num_to_str(sink_data_rate),) + + self.subdev = self.u.db(0) + self.u.db(1) + + if (len(self.subdev) < 4 or + self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX or + self.u.db(1, 0).dbid() != usrp_dbid.BASIC_RX): + sys.stderr.write('This code requires a Basic Rx board on Sides A & B\n') + sys.exit(1) + + self.u.set_mux(gru.hexint(0xf3f2f1f0)) + + # collect 1 second worth of data + limit = int(nsecs * input_rate * nchan) + print "limit = ", limit + head = gr.head(gr.sizeof_gr_complex, limit) + + # deinterleave four channels from FPGA + di = gr.deinterleave(gr.sizeof_gr_complex) + + self.connect(self.u, head, di) + + # taps for channel filter + chan_filt_coeffs = optfir.low_pass (1, # gain + input_rate, # sampling rate + 80e3, # passband cutoff + 115e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + #print len(chan_filt_coeffs) + + for i in range(nchan): + + sink = gr.file_sink(gr.sizeof_gr_complex, + basename + ("-%s-%d.dat" % (eng_notation.num_to_str(sink_data_rate), i))) + if options.filter: + chan_filt = gr.fir_filter_ccf(sw_decim, chan_filt_coeffs) + self.connect((di, i), chan_filt, sink) + else: + self.connect((di, i), sink) + + + self.set_gain(options.gain) + self.set_freq(options.freq) + + def set_gain(self, gain): + for i in range(len(self.subdev)): + self.subdev[i].set_gain(gain) + + def set_freq(self, target_freq): + ok = True + for i in range(len(self.subdev)): + r = usrp.tune(self.u, i, self.subdev[i], target_freq) + if not r: + ok = False + print "set_freq: failed to set subdev[%d] freq to %f" % ( + i, target_freq) + + return ok + + +def main (): + my_graph().run() + +if __name__ == '__main__': + main () diff --git a/gr-uhd/examples/multi-antenna/multi_scope.py b/gr-uhd/examples/multi-antenna/multi_scope.py new file mode 100755 index 000000000..d1e28ad18 --- /dev/null +++ b/gr-uhd/examples/multi-antenna/multi_scope.py @@ -0,0 +1,139 @@ +#!/usr/bin/env python + +from gnuradio import gr, gru, eng_notation +from gnuradio import usrp +from gnuradio.eng_option import eng_option +from gnuradio import eng_notation +from gnuradio import optfir +from optparse import OptionParser +from gnuradio.wxgui import stdgui2, fftsink2, waterfallsink2, scopesink2, form, slider +import wx +from usrpm import usrp_dbid +import time +import os.path +import sys + +# required FPGA that can do 4 rx channels. + + +class my_top_block(stdgui2.std_top_block): + + def __init__(self, frame, panel, vbox, argv): + stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) + + self.frame = frame + self.panel = panel + + parser = OptionParser (option_class=eng_option) + #parser.add_option("-S", "--subdev", type="subdev", default=(0, None), + # help="select USRP Rx side A or B (default=A)") + parser.add_option("-d", "--decim", type="int", default=128, + help="set fgpa decimation rate to DECIM [default=%default]") + parser.add_option("-f", "--freq", type="eng_float", default=146.585e6, + help="set frequency to FREQ [default=%default])", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=20, + help="set gain in dB [default=%default]") + parser.add_option("-F", "--filter", action="store_true", default=True, + help="Enable channel filter") + (options, args) = parser.parse_args() + + if len(args) != 0: + parser.print_help() + raise SystemExit + + nchan = 4 + + if options.filter: + sw_decim = 4 + else: + sw_decim = 1 + + self.u = usrp.source_c(0, options.decim, fpga_filename="std_4rx_0tx.rbf") + if self.u.nddcs() < nchan: + sys.stderr.write('This code requires an FPGA build with %d DDCs. This FPGA has only %d.\n' % ( + nchan, self.u.nddcs())) + raise SystemExit + + if not self.u.set_nchannels(nchan): + sys.stderr.write('set_nchannels(%d) failed\n' % (nchan,)) + raise SystemExit + + input_rate = self.u.adc_freq() / self.u.decim_rate() + print "USB data rate = %s" % (eng_notation.num_to_str(input_rate),) + print "Scope data rate = %s" % (eng_notation.num_to_str(input_rate/sw_decim),) + + self.subdev = self.u.db(0) + self.u.db(1) + + if (len(self.subdev) < 4 or + self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX or + self.u.db(0, 0).dbid() != usrp_dbid.BASIC_RX): + sys.stderr.write('This code requires a Basic Rx board on Sides A & B\n') + sys.exit(1) + + self.u.set_mux(gru.hexint(0xf3f2f1f0)) + + # deinterleave four channels from FPGA + di = gr.deinterleave(gr.sizeof_gr_complex) + + self.connect(self.u, di) + + # our destination (8 float inputs) + self.scope = scopesink2.scope_sink_f(panel, sample_rate=input_rate/sw_decim, + num_inputs=2*nchan) + + # taps for channel filter + chan_filt_coeffs = optfir.low_pass (1, # gain + input_rate, # sampling rate + 80e3, # passband cutoff + 115e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + #print len(chan_filt_coeffs) + + # bust the deinterleaved complex channels into floats + for i in range(nchan): + + if options.filter: + chan_filt = gr.fir_filter_ccf(sw_decim, chan_filt_coeffs) + c2f = gr.complex_to_float() + self.connect((di, i), chan_filt, c2f) + else: + c2f = gr.complex_to_float() + self.connect((di, i), c2f) + + self.connect((c2f, 0), (self.scope, 2*i + 0)) + self.connect((c2f, 1), (self.scope, 2*i + 1)) + + + self._build_gui(vbox) + + self.set_gain(options.gain) + self.set_freq(options.freq) + + def set_gain(self, gain): + for i in range(len(self.subdev)): + self.subdev[i].set_gain(gain) + + def set_freq(self, target_freq): + ok = True + for i in range(len(self.subdev)): + r = usrp.tune(self.u, i, self.subdev[i], target_freq) + if not r: + ok = False + print "set_freq: failed to set subdev[%d] freq to %f" % ( + i, target_freq) + + return ok + + + def _build_gui(self, vbox): + vbox.Add(self.scope.win, 10, wx.EXPAND) + + + +def main (): + app = stdgui2.stdapp(my_top_block, "Multi Scope", nstatus=1) + app.MainLoop() + +if __name__ == '__main__': + main () diff --git a/gr-uhd/examples/usrp_am_mw_rcv.py b/gr-uhd/examples/usrp_am_mw_rcv.py new file mode 100755 index 000000000..130bdcf56 --- /dev/null +++ b/gr-uhd/examples/usrp_am_mw_rcv.py @@ -0,0 +1,312 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, eng_notation, optfir +from gnuradio import audio +from gnuradio import uhd +from gnuradio import blks2 +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form +from optparse import OptionParser +from usrpm import usrp_dbid +import sys +import math +import wx + +class wfm_rx_block (stdgui2.std_top_block): + def __init__(self, frame, panel, vbox, argv): + stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, + help="set sample rate (bandwidth) [default=%default]") + parser.add_option("-f", "--freq", type="eng_float", default=1008.0e3, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-I", "--use-if-freq", action="store_true", default=False, + help="use intermediate freq (compensates DC problems in quadrature boards)" ) + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is maximum)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.frame = frame + self.panel = panel + self.use_IF=options.use_if_freq + if self.use_IF: + self.IF_freq=64000.0 + else: + self.IF_freq=0.0 + + self.vol = 0 + self.state = "FREQ" + self.freq = 0 + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 256e3 + demod_rate = 64e3 + audio_rate = 32e3 + chanfilt_decim = int(usrp_rate // demod_rate) + audio_decim = int(demod_rate // audio_rate) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + # Resample signal to exactly self.usrp_rate + # FIXME: make one of the follow-on filters an arb resampler + rrate = usrp_rate / dev_rate + self.resamp = blks2.pfb_arb_resampler_ccf(rrate) + + chan_filt_coeffs = gr.firdes.low_pass_2 (1, # gain + usrp_rate, # sampling rate + 8e3, # passband cutoff + 4e3, # transition bw + 60) # stopband attenuation + + if self.use_IF: + # Turn If to baseband and filter. + self.chan_filt = gr.freq_xlating_fir_filter_ccf (chanfilt_decim, + chan_filt_coeffs, + self.IF_freq, + usrp_rate) + else: + self.chan_filt = gr.fir_filter_ccf (chanfilt_decim, chan_filt_coeffs) + + self.agc = gr.agc_cc(0.1, 1, 1, 100000) + self.am_demod = gr.complex_to_mag() + self.volume_control = gr.multiply_const_ff(self.vol) + + audio_filt_coeffs = gr.firdes.low_pass_2 (1, # gain + demod_rate, # sampling rate + 8e3, # passband cutoff + 2e3, # transition bw + 60) # stopband attenuation + self.audio_filt=gr.fir_filter_fff(audio_decim, audio_filt_coeffs) + + # sound card as final sink + self.audio_sink = audio.sink (int (audio_rate), + options.audio_output, + False) # ok_to_block + + # now wire it all together + self.connect (self.u, self.resamp, self.chan_filt, self.agc, + self.am_demod, self.audio_filt, + self.volume_control, self.audio_sink) + + self._build_gui(vbox, usrp_rate, demod_rate, audio_rate) + + if options.gain is None: + g = self.u.get_gain_range() + if True: + # if no gain was specified, use the mid gain + options.gain = (g.start() + g.stop())/2.0 + options.gain = g.stop() + + if options.volume is None: + v = self.volume_range() + options.volume = float(v[0]*3+v[1])/4.0 + + if abs(options.freq) < 1e3: + options.freq *= 1e3 + + # set initial values + + self.set_gain(options.gain) + self.set_vol(options.volume) + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + if(options.antenna): + self.u.set_antenna(options.antenna, 0) + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + if 0: + self.src_fft = fftsink2.fft_sink_c(self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate, + ref_scale=32768.0, ref_level=0.0, y_divs=12) + self.connect (self.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 0: + self.post_filt_fft = fftsink2.fft_sink_c(self.panel, title="Post Channel filter", + fft_size=512, sample_rate=demod_rate) + self.connect (self.chan_filt, self.post_filt_fft) + vbox.Add (self.post_filt_fft.win, 4, wx.EXPAND) + + if 0: + post_demod_fft = fftsink2.fft_sink_f(self.panel, title="Post Demod", + fft_size=1024, sample_rate=demod_rate, + y_per_div=10, ref_level=0) + self.connect (self.am_demod, post_demod_fft) + vbox.Add (post_demod_fft.win, 4, wx.EXPAND) + + if 1: + audio_fft = fftsink2.fft_sink_f(self.panel, title="Audio", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=20) + self.connect (self.audio_filt, audio_fft) + vbox.Add (audio_fft.win, 4, wx.EXPAND) + + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(520.0e3, 1611.0e3, 1.0e3), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_vol) + hbox.Add((5,0), 1) + + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_vol(self.vol + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_vol(self.vol - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control.set_k(10**(self.vol/10)) + self.myform['volume'].set_value(self.vol) + self.update_status_bar () + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + r = self.u.set_center_freq(target_freq + self.IF_freq, 0) + + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.vol, self.state) + self._set_status_msg(msg, 1) + try: + self.src_fft.set_baseband_freq(self.freq) + except: + None + + def volume_range(self): + return (-40.0, 0.0, 0.5) + + +if __name__ == '__main__': + app = stdgui2.stdapp (wfm_rx_block, "USRP Broadcast AM MW RX") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_nbfm_ptt.py b/gr-uhd/examples/usrp_nbfm_ptt.py new file mode 100755 index 000000000..af3b132f4 --- /dev/null +++ b/gr-uhd/examples/usrp_nbfm_ptt.py @@ -0,0 +1,474 @@ +#!/usr/bin/env python +# +# Copyright 2005,2007.2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +import math +import sys +import wx +from optparse import OptionParser + +from gnuradio import gr, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import stdgui2, fftsink2, scopesink2, slider, form +from usrpm import usrp_dbid + +from numpy import convolve, array + +#import os +#print "pid =", os.getpid() +#raw_input('Press Enter to continue: ') + +# //////////////////////////////////////////////////////////////////////// +# Control Stuff +# //////////////////////////////////////////////////////////////////////// + +class ptt_block(stdgui2.std_top_block): + def __init__(self, frame, panel, vbox, argv): + stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv) + + self.frame = frame + self.space_bar_pressed = False + + parser = OptionParser (option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option ("-f", "--freq", type="eng_float", default=442.1e6, + help="set Tx and Rx frequency to FREQ", metavar="FREQ") + parser.add_option ("-g", "--rx-gain", type="eng_float", default=None, + help="set rx gain [default=midpoint in dB]") + parser.add_option ("", "--tx-gain", type="eng_float", default=None, + help="set tx gain [default=midpoint in dB]") + parser.add_option("-I", "--audio-input", type="string", default="", + help="pcm input device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option ("-N", "--no-gui", action="store_true", default=False) + (options, args) = parser.parse_args () + + if len(args) != 0: + parser.print_help() + sys.exit(1) + + if options.freq < 1e6: + options.freq *= 1e6 + + self.txpath = transmit_path(options.address, options.tx_gain, + options.audio_input) + self.rxpath = receive_path(options.address, options.rx_gain, + options.audio_output) + self.connect(self.txpath) + self.connect(self.rxpath) + + self._build_gui(frame, panel, vbox, argv, options.no_gui) + + self.set_transmit(False) + self.set_freq(options.freq) + self.set_rx_gain(self.rxpath.gain) # update gui + self.set_volume(self.rxpath.volume) # update gui + self.set_squelch(self.rxpath.threshold()) # update gui + + + def set_transmit(self, enabled): + self.txpath.set_enable(enabled) + self.rxpath.set_enable(not(enabled)) + if enabled: + self.frame.SetStatusText ("Transmitter ON", 1) + else: + self.frame.SetStatusText ("Receiver ON", 1) + + + def set_rx_gain(self, gain): + self.myform['rx_gain'].set_value(gain) # update displayed value + self.rxpath.set_gain(gain) + + def set_tx_gain(self, gain): + self.txpath.set_gain(gain) + + def set_squelch(self, threshold): + self.rxpath.set_squelch(threshold) + self.myform['squelch'].set_value(self.rxpath.threshold()) + + def set_volume (self, vol): + self.rxpath.set_volume(vol) + self.myform['volume'].set_value(self.rxpath.volume) + #self.update_status_bar () + + def set_freq(self, freq): + r1 = self.txpath.set_freq(freq) + r2 = self.rxpath.set_freq(freq) + #print "txpath.set_freq =", r1 + #print "rxpath.set_freq =", r2 + if r1 and r2: + self.myform['freq'].set_value(freq) # update displayed value + return r1 and r2 + + def _build_gui(self, frame, panel, vbox, argv, no_gui): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + self.panel = panel + + # FIXME This REALLY needs to be replaced with a hand-crafted button + # that sends both button down and button up events + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((10,0), 1) + self.status_msg = wx.StaticText(panel, -1, "Press Space Bar to Transmit") + of = self.status_msg.GetFont() + self.status_msg.SetFont(wx.Font(15, of.GetFamily(), of.GetStyle(), of.GetWeight())) + hbox.Add(self.status_msg, 0, wx.ALIGN_CENTER) + hbox.Add((10,0), 1) + vbox.Add(hbox, 0, wx.EXPAND | wx.ALIGN_CENTER) + + panel.Bind(wx.EVT_KEY_DOWN, self._on_key_down) + panel.Bind(wx.EVT_KEY_UP, self._on_key_up) + panel.Bind(wx.EVT_KILL_FOCUS, self._on_kill_focus) + panel.SetFocus() + + if 1 and not(no_gui): + rx_fft = fftsink2.fft_sink_c(panel, title="Rx Input", fft_size=512, + sample_rate=self.rxpath.if_rate, + ref_level=80, y_per_div=20) + self.connect (self.rxpath.u, rx_fft) + vbox.Add (rx_fft.win, 1, wx.EXPAND) + + if 1 and not(no_gui): + rx_fft = fftsink2.fft_sink_c(panel, title="Post s/w Resampler", + fft_size=512, sample_rate=self.rxpath.quad_rate, + ref_level=80, y_per_div=20) + self.connect (self.rxpath.resamp, rx_fft) + vbox.Add (rx_fft.win, 1, wx.EXPAND) + + if 0 and not(no_gui): + foo = scopesink2.scope_sink_f(panel, title="Squelch", + sample_rate=32000) + self.connect (self.rxpath.fmrx.div, (foo,0)) + self.connect (self.rxpath.fmrx.gate, (foo,1)) + self.connect (self.rxpath.fmrx.squelch_lpf, (foo,2)) + vbox.Add (foo.win, 1, wx.EXPAND) + + if 0 and not(no_gui): + tx_fft = fftsink2.fft_sink_c(panel, title="Tx Output", + fft_size=512, sample_rate=self.txpath.usrp_rate) + self.connect (self.txpath.amp, tx_fft) + vbox.Add (tx_fft.win, 1, wx.EXPAND) + + + # add control area at the bottom + + self.myform = myform = form.form() + + # first row + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0, 0) + myform['freq'] = form.float_field( + parent=panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0, 0) + vbox.Add(hbox, 0, wx.EXPAND) + + + # second row + hbox = wx.BoxSizer(wx.HORIZONTAL) + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.rxpath.volume_range(), + callback=self.set_volume) + hbox.Add((5,0), 0) + myform['squelch'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Squelch", + weight=3, range=self.rxpath.squelch_range(), + callback=self.set_squelch) + + g = self.rxpath.u.get_gain_range() + hbox.Add((5,0), 0) + myform['rx_gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Rx Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_rx_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + + self._build_subpanel(vbox) + + def _build_subpanel(self, vbox_arg): + # build a secondary information panel (sometimes hidden) + + # FIXME figure out how to have this be a subpanel that is always + # created, but has its visibility controlled by foo.Show(True/False) + + #if not(self.show_debug_info): + # return + + panel = self.panel + vbox = vbox_arg + myform = self.myform + + #panel = wx.Panel(self.panel, -1) + #vbox = wx.BoxSizer(wx.VERTICAL) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + #myform['decim'] = form.static_float_field( + # parent=panel, sizer=hbox, label="Decim") + + #hbox.Add((5,0), 1) + #myform['fs@usb'] = form.static_float_field( + # parent=panel, sizer=hbox, label="Fs@USB") + + #hbox.Add((5,0), 1) + #myform['dbname'] = form.static_text_field( + # parent=panel, sizer=hbox) + + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + def _on_key_down(self, evt): + # print "key_down:", evt.m_keyCode + if evt.m_keyCode == wx.WXK_SPACE and not(self.space_bar_pressed): + self.space_bar_pressed = True + self.set_transmit(True) + + def _on_key_up(self, evt): + # print "key_up", evt.m_keyCode + if evt.m_keyCode == wx.WXK_SPACE: + self.space_bar_pressed = False + self.set_transmit(False) + + def _on_kill_focus(self, evt): + # if we lose the keyboard focus, turn off the transmitter + self.space_bar_pressed = False + self.set_transmit(False) + + +# //////////////////////////////////////////////////////////////////////// +# Transmit Path +# //////////////////////////////////////////////////////////////////////// + +class transmit_path(gr.hier_block2): + def __init__(self, address, gain, audio_input): + gr.hier_block2.__init__(self, "transmit_path", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(0, 0, 0)) # Output signature + + self.u = uhd.usrp_sink(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.if_rate = 320e3 + self.audio_rate = 32e3 + + self.u.set_samp_rate(self.if_rate) + dev_rate = self.u.get_samp_rate() + + self.audio_gain = 10 + self.normal_gain = 32000 + + self.audio = audio.source(int(self.audio_rate), audio_input) + self.audio_amp = gr.multiply_const_ff(self.audio_gain) + + lpf = gr.firdes.low_pass (1, # gain + self.audio_rate, # sampling rate + 3800, # low pass cutoff freq + 300, # width of trans. band + gr.firdes.WIN_HANN) # filter type + + hpf = gr.firdes.high_pass (1, # gain + self.audio_rate, # sampling rate + 325, # low pass cutoff freq + 50, # width of trans. band + gr.firdes.WIN_HANN) # filter type + + audio_taps = convolve(array(lpf),array(hpf)) + self.audio_filt = gr.fir_filter_fff(1,audio_taps) + + self.pl = blks2.ctcss_gen_f(self.audio_rate,123.0) + self.add_pl = gr.add_ff() + self.connect(self.pl,(self.add_pl,1)) + + self.fmtx = blks2.nbfm_tx(self.audio_rate, self.if_rate) + self.amp = gr.multiply_const_cc (self.normal_gain) + + rrate = dev_rate / self.if_rate + self.resamp = blks2.pfb_arb_resampler_ccf(rrate) + + self.connect(self.audio, self.audio_amp, self.audio_filt, + (self.add_pl,0), self.fmtx, self.amp, + self.resamp, self.u) + + if gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + gain = float(g.start() + g.stop())/2.0 + + self.set_gain(gain) + + self.set_enable(False) + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + r = self.u.set_center_freq(target_freq) + if r: + return True + return False + + def set_gain(self, gain): + self.gain = gain + self.u.set_gain(gain) + + def set_enable(self, enable): + if enable: + self.amp.set_k (self.normal_gain) + else: + self.amp.set_k (0) + + + +# //////////////////////////////////////////////////////////////////////// +# Receive Path +# //////////////////////////////////////////////////////////////////////// + +class receive_path(gr.hier_block2): + def __init__(self, address, gain, audio_output): + gr.hier_block2.__init__(self, "receive_path", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(0, 0, 0)) # Output signature + + self.u = uhd.usrp_source(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.if_rate = 256e3 + self.quad_rate = 64e3 + self.audio_rate = 32e3 + + self.u.set_samp_rate(self.if_rate) + dev_rate = self.u.get_samp_rate() + + # Create filter to get actual channel we want + nfilts = 32 + chan_coeffs = gr.firdes.low_pass (nfilts, # gain + nfilts*dev_rate, # sampling rate + 13e3, # low pass cutoff freq + 4e3, # width of trans. band + gr.firdes.WIN_HANN) # filter type + + rrate = self.quad_rate / dev_rate + self.resamp = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + # instantiate the guts of the single channel receiver + self.fmrx = blks2.nbfm_rx(self.audio_rate, self.quad_rate) + + # standard squelch block + self.squelch = blks2.standard_squelch(self.audio_rate) + + # audio gain / mute block + self._audio_gain = gr.multiply_const_ff(1.0) + + # sound card as final sink + audio_sink = audio.sink (int(self.audio_rate), audio_output) + + # now wire it all together + self.connect (self.u, self.resamp, self.fmrx, self.squelch, + self._audio_gain, audio_sink) + + if gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + gain = float(g.start() + g.stop())/2.0 + + self.enabled = True + self.set_gain(gain) + v = self.volume_range() + self.set_volume((v[0]+v[1])/2) + s = self.squelch_range() + self.set_squelch((s[0]+s[1])/2) + + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + def set_volume (self, vol): + g = self.volume_range() + self.volume = max(g[0], min(g[1], vol)) + self._update_audio_gain() + + def set_enable(self, enable): + self.enabled = enable + self._update_audio_gain() + + def _update_audio_gain(self): + if self.enabled: + self._audio_gain.set_k(10**(self.volume/10)) + else: + self._audio_gain.set_k(0) + + def squelch_range(self): + return self.squelch.squelch_range() + + def set_squelch(self, threshold): + print "SQL =", threshold + self.squelch.set_threshold(threshold) + + def threshold(self): + return self.squelch.threshold() + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + r = self.u.set_center_freq(target_freq) + if r: + return True + return False + + def set_gain(self, gain): + self.gain = gain + self.u.set_gain(gain) + + +# //////////////////////////////////////////////////////////////////////// +# Main +# //////////////////////////////////////////////////////////////////////// + +def main(): + app = stdgui2.stdapp(ptt_block, "NBFM Push to Talk") + app.MainLoop() + +if __name__ == '__main__': + main() diff --git a/gr-uhd/examples/usrp_nbfm_rcv.py b/gr-uhd/examples/usrp_nbfm_rcv.py new file mode 100755 index 000000000..2dc69423c --- /dev/null +++ b/gr-uhd/examples/usrp_nbfm_rcv.py @@ -0,0 +1,376 @@ +#!/usr/bin/env python +# +# Copyright 2005,2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form +from optparse import OptionParser +import sys +import math +import wx + +#//////////////////////////////////////////////////////////////////////// +# Control Stuff +#//////////////////////////////////////////////////////////////////////// + +class my_top_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=146.585e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("-N", "--no-gui", action="store_true", default=False) + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + if options.freq < 1e6: + options.freq *= 1e6 + + self.frame = frame + self.panel = panel + + self.state = "FREQ" + self.freq = 0 + self.freq_step = 25e3 + + self.rxpath = receive_path(options.address, options.antenna, + options.gain, options.audio_output) + self.connect(self.rxpath) + + self._build_gui(vbox, options.no_gui) + + # set initial values + + if options.volume is not None: + self.set_volume(options.volume) + + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + self.set_gain(self.rxpath.gain) # update gui + self.set_volume(self.rxpath.volume) # update gui + self.set_squelch(self.rxpath.threshold()) # update gui + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, no_gui): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + self.src_fft = None + if 0 and not(no_gui): + self.src_fft = fftsink2.fft_sink_c(self.panel, + title="Data from USRP", + fft_size=512, + sample_rate=self.rxpath.if_rate, + ref_scale=32768.0, + ref_level=0, + y_per_div=10, + y_divs=12) + self.connect (self.rxpath.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + if 1 and not(no_gui): + rx_fft = fftsink2.fft_sink_c(self.panel, + title="Post s/w Resampling", + fft_size=512, + sample_rate=self.rxpath.quad_rate, + ref_level=80, + y_per_div=20) + self.connect (self.rxpath.resamp, rx_fft) + vbox.Add (rx_fft.win, 4, wx.EXPAND) + + if 1 and not(no_gui): + post_deemph_fft = fftsink2.fft_sink_f(self.panel, + title="Post Deemph", + fft_size=512, + sample_rate=self.rxpath.audio_rate, + y_per_div=10, + ref_level=-40) + self.connect (self.rxpath.fmrx.deemph, post_deemph_fft) + vbox.Add (post_deemph_fft.win, 4, wx.EXPAND) + + if 0: + post_filt_fft = fftsink2.fft_sink_f(self.panel, + title="Post Filter", + fft_size=512, + sample_rate=audio_rate, + y_per_div=10, + ref_level=-40) + self.connect (self.guts.audio_filter, post_filt) + vbox.Add (fft_win4, 4, wx.EXPAND) + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, + self._set_status_msg)) + + #hbox.Add((5,0), 0) + #myform['freq_slider'] = \ + # form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + # range=(87.9e6, 108.1e6, 0.1e6), + # callback=self.set_freq) + + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_volume) + hbox.Add((5,0), 0) + myform['squelch'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Squelch", + weight=3, range=self.rxpath.squelch_range(), + callback=self.set_squelch) + g = self.rxpath.u.get_gain_range() + hbox.Add((5,0), 0) + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + self.freq_step) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - self.freq_step) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_volume(self.rxpath.volume + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_volume(self.rxpath.volume - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_squelch(self, threshold_in_db): + self.rxpath.set_squelch(threshold_in_db) + self.myform['squelch'].set_value(self.rxpath.threshold()) + + def set_volume (self, vol): + self.rxpath.set_volume(vol) + self.myform['volume'].set_value(self.rxpath.volume) + self.update_status_bar () + + def set_freq(self, target_freq): + r = self.rxpath.set_freq(target_freq) + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + #self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.rxpath.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.rxpath.volume, self.state) + self._set_status_msg(msg, 1) + if self.src_fft: + self.src_fft.set_baseband_freq(self.freq) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +#//////////////////////////////////////////////////////////////////////// +# Receive Path +#//////////////////////////////////////////////////////////////////////// + +USE_SIMPLE_SQUELCH = False + +class receive_path(gr.hier_block2): + def __init__(self, address, antenna, gain, audio_output): + gr.hier_block2.__init__(self, "receive_path", + gr.io_signature(0, 0, 0), # Input signature + gr.io_signature(0, 0, 0)) # Output signature + + self.u = uhd.usrp_source(device_addr=address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.if_rate = 256e3 + self.quad_rate = 64e3 + self.audio_rate = 32e3 + + self.u.set_samp_rate(self.if_rate) + dev_rate = self.u.get_samp_rate() + + # Create filter to get actual channel we want + nfilts = 32 + chan_coeffs = gr.firdes.low_pass (nfilts, # gain + nfilts*dev_rate, # sampling rate + 8e3, # low pass cutoff freq + 2e3, # width of trans. band + gr.firdes.WIN_HANN) # filter type + rrate = self.quad_rate / dev_rate + self.resamp = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + if USE_SIMPLE_SQUELCH: + self.squelch = gr.simple_squelch_cc(20) + else: + self.squelch = blks2.standard_squelch(self.audio_rate) + + # instantiate the guts of the single channel receiver + self.fmrx = blks2.nbfm_rx(self.audio_rate, self.quad_rate) + + # audio gain / mute block + self._audio_gain = gr.multiply_const_ff(1.0) + + # sound card as final sink + audio_sink = audio.sink (int(self.audio_rate), audio_output) + + # now wire it all together + if USE_SIMPLE_SQUELCH: + self.connect (self.u, self.resamp, self.squelch, self.fmrx, + self._audio_gain, audio_sink) + else: + self.connect (self.u, self.resamp, self.fmrx, self.squelch, + self._audio_gain, audio_sink) + + if gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + gain = float(g.start()+g.stop())/2 + + self.set_gain(gain) + + v = self.volume_range() + self.set_volume((v[0]+v[1])/2) + + s = self.squelch_range() + self.set_squelch((s[0]+s[1])/2) + + if(antenna): + self.u.set_antenna(antenna, 0) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + def set_volume (self, vol): + g = self.volume_range() + self.volume = max(g[0], min(g[1], vol)) + self._update_audio_gain() + + def _update_audio_gain(self): + self._audio_gain.set_k(10**(self.volume/10)) + + def squelch_range(self): + r = self.squelch.squelch_range() + #print "squelch_range: ", r + return r + + def set_squelch(self, threshold): + #print "SQL =", threshold + self.squelch.set_threshold(threshold) + + def threshold(self): + t = self.squelch.threshold() + #print "t =", t + return t + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + + r = self.u.set_center_freq(target_freq) + if r: + return True + return False + + def set_gain(self, gain): + self.gain = gain + self.u.set_gain(gain) + + +# //////////////////////////////////////////////////////////////////////// +# Main +# //////////////////////////////////////////////////////////////////////// + +if __name__ == '__main__': + app = stdgui2.stdapp (my_top_block, "USRP NBFM RX") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_spectrum_sense.py b/gr-uhd/examples/usrp_spectrum_sense.py new file mode 100755 index 000000000..e89745b3b --- /dev/null +++ b/gr-uhd/examples/usrp_spectrum_sense.py @@ -0,0 +1,243 @@ +#!/usr/bin/env python +# +# Copyright 2005,2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, eng_notation, window +from gnuradio import audio +from gnuradio import uhd +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import sys +import math +import struct + +sys.stderr.write("Warning: this is known to have issues on some machines+Python version combinations to seg fault due to the callback in bin_statitics. If you figure out why, we'd love to hear about it!\n") + +class tune(gr.feval_dd): + """ + This class allows C++ code to callback into python. + """ + def __init__(self, tb): + gr.feval_dd.__init__(self) + self.tb = tb + + def eval(self, ignore): + """ + This method is called from gr.bin_statistics_f when it wants + to change the center frequency. This method tunes the front + end to the new center frequency, and returns the new frequency + as its result. + """ + + try: + # We use this try block so that if something goes wrong + # from here down, at least we'll have a prayer of knowing + # what went wrong. Without this, you get a very + # mysterious: + # + # terminate called after throwing an instance of + # 'Swig::DirectorMethodException' Aborted + # + # message on stderr. Not exactly helpful ;) + + new_freq = self.tb.set_next_freq() + return new_freq + + except Exception, e: + print "tune: Exception: ", e + + +class parse_msg(object): + def __init__(self, msg): + self.center_freq = msg.arg1() + self.vlen = int(msg.arg2()) + assert(msg.length() == self.vlen * gr.sizeof_float) + + # FIXME consider using NumPy array + t = msg.to_string() + self.raw_data = t + self.data = struct.unpack('%df' % (self.vlen,), t) + + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + usage = "usage: %prog [options] min_freq max_freq" + parser = OptionParser(option_class=eng_option, usage=usage) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, + help="set sample rate [default=%default]") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("", "--tune-delay", type="eng_float", + default=1e-3, metavar="SECS", + help="time to delay (in seconds) after changing frequency [default=%default]") + parser.add_option("", "--dwell-delay", type="eng_float", + default=10e-3, metavar="SECS", + help="time to dwell (in seconds) at a given frequncy [default=%default]") + parser.add_option("-F", "--fft-size", type="int", default=256, + help="specify number of FFT bins [default=%default]") + parser.add_option("", "--real-time", action="store_true", default=False, + help="Attempt to enable real-time scheduling") + + (options, args) = parser.parse_args() + if len(args) != 2: + parser.print_help() + sys.exit(1) + + self.min_freq = eng_notation.str_to_num(args[0]) + self.max_freq = eng_notation.str_to_num(args[1]) + + if self.min_freq > self.max_freq: + # swap them + self.min_freq, self.max_freq = self.max_freq, self.min_freq + + self.fft_size = options.fft_size + + if not options.real_time: + realtime = False + else: + # Attempt to enable realtime scheduling + r = gr.enable_realtime_scheduling() + if r == gr.RT_OK: + realtime = True + else: + realtime = False + print "Note: failed to enable realtime scheduling" + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = options.samp_rate + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + s2v = gr.stream_to_vector(gr.sizeof_gr_complex, self.fft_size) + + mywindow = window.blackmanharris(self.fft_size) + fft = gr.fft_vcc(self.fft_size, True, mywindow) + power = 0 + for tap in mywindow: + power += tap*tap + + c2mag = gr.complex_to_mag_squared(self.fft_size) + + # FIXME the log10 primitive is dog slow + log = gr.nlog10_ff(10, self.fft_size, + -20*math.log10(self.fft_size)-10*math.log10(power/self.fft_size)) + + # Set the freq_step to 75% of the actual data throughput. + # This allows us to discard the bins on both ends of the spectrum. + + self.freq_step = 0.75 * usrp_rate + self.min_center_freq = self.min_freq + self.freq_step/2 + nsteps = math.ceil((self.max_freq - self.min_freq) / self.freq_step) + self.max_center_freq = self.min_center_freq + (nsteps * self.freq_step) + + self.next_freq = self.min_center_freq + + tune_delay = max(0, int(round(options.tune_delay * usrp_rate / self.fft_size))) # in fft_frames + dwell_delay = max(1, int(round(options.dwell_delay * usrp_rate / self.fft_size))) # in fft_frames + + self.msgq = gr.msg_queue(16) + self._tune_callback = tune(self) # hang on to this to keep it from being GC'd + stats = gr.bin_statistics_f(self.fft_size, self.msgq, + self._tune_callback, tune_delay, + dwell_delay) + + # FIXME leave out the log10 until we speed it up + #self.connect(self.u, s2v, fft, c2mag, log, stats) + self.connect(self.u, s2v, fft, c2mag, stats) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + self.set_gain(options.gain) + print "gain =", options.gain + + + def set_next_freq(self): + target_freq = self.next_freq + self.next_freq = self.next_freq + self.freq_step + if self.next_freq >= self.max_center_freq: + self.next_freq = self.min_center_freq + + if not self.set_freq(target_freq): + print "Failed to set frequency to", target_freq + sys.exit(1) + + return target_freq + + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + r = self.u.set_center_freq(target_freq) + if r: + return True + + return False + + def set_gain(self, gain): + self.u.set_gain(gain) + + +def main_loop(tb): + while 1: + + # Get the next message sent from the C++ code (blocking call). + # It contains the center frequency and the mag squared of the fft + m = parse_msg(tb.msgq.delete_head()) + + # Print center freq so we know that something is happening... + print m.center_freq + + # FIXME do something useful with the data... + + # m.data are the mag_squared of the fft output (they are in the + # standard order. I.e., bin 0 == DC.) + # You'll probably want to do the equivalent of "fftshift" on them + # m.raw_data is a string that contains the binary floats. + # You could write this as binary to a file. + + +if __name__ == '__main__': + tb = my_top_block() + try: + tb.start() + main_loop(tb) + + except KeyboardInterrupt: + pass diff --git a/gr-uhd/examples/usrp_tv_rcv.py b/gr-uhd/examples/usrp_tv_rcv.py new file mode 100755 index 000000000..a68867365 --- /dev/null +++ b/gr-uhd/examples/usrp_tv_rcv.py @@ -0,0 +1,436 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +""" +Realtime capture and display of analog Tv stations. + +Can also use a file as source or sink + +When you use an output file you can show the results frame-by-frame +using ImageMagick + +When you want to use the realtime sdl display window you must first +install gr-video-sdl. + +When you use a file source, instead of the usrp, make sure you +capture interleaved shorts. (Use usrp_rx_file.py, or use +usrp_rx_cfile.py --output-shorts if you have a recent enough +usrp_rx_cfile.py) + +There is no synchronisation yet. The sync blocks are in development +but not yet in cvs. +""" + +from gnuradio import gr +try: + from gnuradio import video_sdl +except: + print "FYI: gr-video-sdl is not installed" + print "realtime SDL video output window will not be available" +from gnuradio import uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form +from optparse import OptionParser +import sys +import wx + + +class tv_rx_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + usage="%prog: [options] [input_filename]. \n If you don't specify an input filename the usrp will be used as source\n " \ + "Make sure your input capture file containes interleaved shorts not complex floats" + parser=OptionParser(option_class=eng_option, usage=usage) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, + help="set sample rate") + parser.add_option("-f", "--freq", type="eng_float", default=519.25e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-c", "--contrast", type="eng_float", default=1.0, + help="set contrast (default is 1.0)") + parser.add_option("-b", "--brightness", type="eng_float", default=0.0, + help="set brightness (default is 0)") + parser.add_option("-p", "--pal", action="store_true", default=False, + help="PAL video format (this is the default)") + parser.add_option("-n", "--ntsc", action="store_true", default=False, + help="NTSC video format") + parser.add_option("-o", "--out-filename", type="string", default="sdl", + help="For example out_raw_uchar.gray. If you don't specify an output filename you will get a video_sink_sdl realtime output window. You then need to have gr-video-sdl installed)") + parser.add_option("-r", "--repeat", action="store_false", default=True, + help="repeat file in a loop") + parser.add_option("", "--freq-min", type="eng_float", default=50.25e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=900.25e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if not ((len(args) == 1) or (len(args) == 0)): + parser.print_help() + sys.exit(1) + + if len(args) == 1: + filename = args[0] + else: + filename = None + + self.frame = frame + self.panel = panel + + self.contrast = options.contrast + self.brightness = options.brightness + self.state = "FREQ" + self.freq = 0 + + self.tv_freq_min = options.freq_min + self.tv_freq_max = options.freq_max + + # build graph + self.u=None + + if not (options.out_filename=="sdl"): + options.repeat=False + + usrp_rate = options.samp_rate + + if not ((filename is None) or (filename=="usrp")): + # file is data source + self.filesource = gr.file_source(gr.sizeof_short,filename,options.repeat) + self.istoc = gr.interleaved_short_to_complex() + self.connect(self.filesource,self.istoc) + self.src=self.istoc + + options.gain=0.0 + self.gain=0.0 + + else: # use a UHD device + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + self.src=self.u + + self.gain = options.gain + + f2uc=gr.float_to_uchar() + + # sdl window as final sink + if not (options.pal or options.ntsc): + options.pal=True #set default to PAL + + if options.pal: + lines_per_frame=625.0 + frames_per_sec=25.0 + show_width=768 + + elif options.ntsc: + lines_per_frame=525.0 + frames_per_sec=29.97002997 + show_width=640 + + width=int(usrp_rate/(lines_per_frame*frames_per_sec)) + height=int(lines_per_frame) + + if (options.out_filename=="sdl"): + #Here comes the tv screen, you have to build and install + #gr-video-sdl for this (subproject of gnuradio, only in cvs + #for now) + try: + video_sink = video_sdl.sink_uc ( frames_per_sec, width, height, 0, + show_width, height) + except: + print "gr-video-sdl is not installed" + print "realtime \"sdl\" video output window is not available" + raise SystemExit, 1 + self.dst=video_sink + else: + print "You can use the imagemagick display tool to show the resulting imagesequence" + print "use the following line to show the demodulated TV-signal:" + print "display -depth 8 -size " +str(width)+ "x" + str(height) \ + + " gray:" + options.out_filename + print "(Use the spacebar to advance to next frames)" + options.repeat=False + file_sink=gr.file_sink(gr.sizeof_char, options.out_filename) + self.dst =file_sink + + self.agc=gr.agc_cc(1e-7,1.0,1.0) #1e-7 + self.am_demod = gr.complex_to_mag () + self.set_blacklevel=gr.add_const_ff(0.0) + self.invert_and_scale = gr.multiply_const_ff (0.0) #-self.contrast *128.0*255.0/(200.0) + + # now wire it all together + #sample_rate=options.width*options.height*options.framerate + + process_type='do_no_sync' + if process_type=='do_no_sync': + self.connect (self.src, self.agc,self.am_demod, + self.invert_and_scale, self.set_blacklevel, + f2uc,self.dst) + elif process_type=='do_tv_sync_adv': + #defaults: gr.tv_sync_adv (double sampling_freq, unsigned + #int tv_format,bool output_active_video_only=false, bool + #do_invert=false, double wanted_black_level=0.0, double + #wanted_white_level=255.0, double avg_alpha=0.1, double + #initial_gain=1.0, double initial_offset=0.0,bool + #debug=false) + + #note, this block is not yet in cvs + self.tv_sync_adv=gr.tv_sync_adv(usrp_rate, 0, False, False, + 0.0, 255.0, 0.01, 1.0, 0.0, False) + self.connect (self.src, self.am_demod, self.invert_and_scale, + self.tv_sync_adv, s2f, f2uc, self.dst) + + elif process_type=='do_nullsink': + #self.connect (self.src, self.am_demod,self.invert_and_scale,f2uc,video_sink) + c2r=gr.complex_to_real() + nullsink=gr.null_sink(gr.sizeof_float) + self.connect (self.src, c2r,nullsink) #video_sink) + elif process_type=='do_tv_sync_corr': + frame_size=width*height #int(usrp_rate/25.0) + nframes=10# 32 + search_window=20*nframes + debug=False + video_alpha=0.3 #0.1 + corr_alpha=0.3 + + #Note: this block is not yet in cvs + tv_corr=gr.tv_correlator_ff(frame_size,nframes, search_window, + video_alpha, corr_alpha,debug) + shift=gr.add_const_ff(-0.7) + + self.connect (self.src, self.agc, self.am_demod, tv_corr, + self.invert_and_scale, self.set_blacklevel, + f2uc, self.dst) + else: # process_type=='do_test_image': + src_vertical_bars = gr.sig_source_f (usrp_rate, gr.GR_SIN_WAVE, + 10.0 *usrp_rate/320, 255,128) + self.connect(src_vertical_bars, f2uc, self.dst) + + self._build_gui(vbox, usrp_rate, usrp_rate, usrp_rate) + + + frange = self.u.get_freq_range() + if(frange.start() > self.tv_freq_max or frange.stop() < self.tv_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.tv_freq_min or options.freq > self.tv_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # set initial values + self.set_gain(options.gain) + self.set_contrast(self.contrast) + self.set_brightness(options.brightness) + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + if 0: + self.src_fft = fftsink.fft_sink_c (self, self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate) + self.connect (self.src, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 0: + post_demod_fft = fftsink.fft_sink_f (self, self.panel, title="Post Demod", + fft_size=512, sample_rate=demod_rate, + y_per_div=10, ref_level=-40) + self.connect (self.am_demod, post_demod_fft) + vbox.Add (post_demod_fft.win, 4, wx.EXPAND) + + if 0: + post_filt_fft = fftsink.fft_sink_f (self, self.panel, title="Post Filter", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-40) + self.connect (self.set_blacklevel, post_filt) + vbox.Add (fft_win4, 4, wx.EXPAND) + + + # control area form at bottom + self.myform = myform = form.form() + + if not (self.u is None): + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(self.tv_freq_min, self.tv_freq_max, 0.25e6), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['contrast'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Contrast", + weight=3, range=(-2.0, 2.0, 0.1), + callback=self.set_contrast) + hbox.Add((5,0), 1) + + myform['brightness'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Brightness", + weight=3, range=(-255.0, 255.0, 1.0), + callback=self.set_brightness) + hbox.Add((5,0), 0) + + if not (self.u is None): + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + elif (self.state == "CONTRAST"): + step = 0.1 + if self.rot >= 3: + self.set_contrast(self.contrast + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_contrast(self.contrast - step) + self.rot += 3 + else: + step = 1 + if self.rot >= 3: + self.set_brightness(self.brightness + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_brightness(self.brightness - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "CONTRAST" + elif self.state == "CONTRAST": + self.state = "BRIGHTNESS" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_contrast (self, contrast): + self.contrast = contrast + self.invert_and_scale.set_k(-self.contrast *128.0*255.0/(200.0)) + self.myform['contrast'].set_value(self.contrast) + self.update_status_bar () + + def set_brightness (self, brightness): + self.brightness = brightness + self.set_blacklevel.set_k(self.brightness +255.0) + self.myform['brightness'].set_value(self.brightness) + self.update_status_bar () + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + + Tuning is a two step process. First we ask the front-end to + tune as close to the desired frequency as it can. Then we use + the result of that operation and our target_frequency to + determine the value for the digital down converter. + """ + if not (self.u is None): + r = self.u.set_center_freq(target_freq) + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + if not (self.u is None): + self.gain=gain + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + self.update_status_bar() + + def update_status_bar (self): + msg = "Setting:%s Contrast:%r Brightness:%r Gain: %r" % \ + (self.state, self.contrast,self.brightness,self.gain) + self._set_status_msg(msg, 1) + #self.src_fft.set_baseband_freq(self.freq) + + +if __name__ == '__main__': + app = stdgui2.stdapp (tv_rx_block, "USRP TV RX black-and-white") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_tv_rcv_nogui.py b/gr-uhd/examples/usrp_tv_rcv_nogui.py new file mode 100755 index 000000000..a44e20d39 --- /dev/null +++ b/gr-uhd/examples/usrp_tv_rcv_nogui.py @@ -0,0 +1,206 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +""" +Reads from a file and generates PAL TV pictures in black and white +which can be displayed using ImageMagick or realtime using +gr-video-sdl (To capture the input file Use usrp_rx_file.py, or use +usrp_rx_cfile.py --output-shorts if you have a recent enough +usrp_rx_cfile.py) + +Can also use usrp directly as capture source, but then you need a +higher decimation factor (64) and thus get a lower horizontal +resulution. There is no synchronisation yet. The sync blocks are in +development but not yet in cvs. + +""" + +from gnuradio import gr, eng_notation +from gnuradio import audio +from gnuradio import uhd +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import sys + +try: + from gnuradio import video_sdl +except: + print "FYI: gr-video-sdl is not installed" + print "realtime \"sdl\" video output window will not be available" + + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + usage=("%prog: [options] output_filename.\nSpecial output_filename" + \ + "\"sdl\" will use video_sink_sdl as realtime output window. " + \ + "You then need to have gr-video-sdl installed.\n" +\ + "Make sure your input capture file containes interleaved " + \ + "shorts not complex floats") + parser = OptionParser(option_class=eng_option, usage=usage) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, + help="set sample rate") + parser.add_option("-c", "--contrast", type="eng_float", default=1.0, + help="set contrast (default is 1.0)") + parser.add_option("-b", "--brightness", type="eng_float", default=0.0, + help="set brightness (default is 0)") + parser.add_option("-i", "--in-filename", type="string", default=None, + help="Use input file as source. samples must be " + \ + "interleaved shorts \n Use usrp_rx_file.py or " + \ + "usrp_rx_cfile.py --output-shorts.\n Special " + \ + "name \"usrp\" results in realtime capturing " + \ + "and processing using usrp.\n" + \ + "You then probably need a decimation factor of 64 or higher.") + parser.add_option("-f", "--freq", type="eng_float", default=519.25e6, + help="set frequency to FREQ.\nNote that the frequency of the video carrier is not at the middle of the TV channel", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-p", "--pal", action="store_true", default=False, + help="PAL video format (this is the default)") + parser.add_option("-n", "--ntsc", action="store_true", default=False, + help="NTSC video format") + parser.add_option("-r", "--repeat", action="store_false", default=True, + help="repeat in_file in a loop") + parser.add_option("-N", "--nframes", type="eng_float", default=None, + help="number of frames to collect [default=+inf]") + parser.add_option("", "--freq-min", type="eng_float", default=50.25e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=900.25e6, + help="Set a maximum frequency [default=%default]") + (options, args) = parser.parse_args () + if not (len(args) == 1): + parser.print_help() + sys.stderr.write('You must specify the output. FILENAME or sdl \n'); + sys.exit(1) + + filename = args[0] + + self.tv_freq_min = options.freq_min + self.tv_freq_max = options.freq_max + + if options.in_filename is None: + parser.print_help() + sys.stderr.write('You must specify the input -i FILENAME or -i usrp\n'); + raise SystemExit, 1 + + if not (filename=="sdl"): + options.repeat=False + + input_rate = options.samp_rate + print "video sample rate %s" % (eng_notation.num_to_str(input_rate)) + + if not (options.in_filename=="usrp"): + # file is data source, capture with usr_rx_csfile.py + self.filesource = gr.file_source(gr.sizeof_short, + options.in_filename, + options.repeat) + self.istoc = gr.interleaved_short_to_complex() + self.connect(self.filesource,self.istoc) + self.src=self.istoc + else: + if options.freq is None: + parser.print_help() + sys.stderr.write('You must specify the frequency with -f FREQ\n'); + raise SystemExit, 1 + + # build the graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + self.u.set_samp_rate(input_rate) + dev_rate = self.u.get_samp_rate() + + self.src=self.u + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + self.u.set_gain(options.gain) + + r = self.u.set_center_freq(options.freq) + if not r: + sys.stderr.write('Failed to set frequency\n') + raise SystemExit, 1 + + self.agc = gr.agc_cc(1e-7,1.0,1.0) #1e-7 + self.am_demod = gr.complex_to_mag () + self.set_blacklevel = gr.add_const_ff(options.brightness +255.0) + self.invert_and_scale = gr.multiply_const_ff (-options.contrast *128.0*255.0/(200.0)) + self.f2uc = gr.float_to_uchar() + + # sdl window as final sink + if not (options.pal or options.ntsc): + options.pal=True #set default to PAL + if options.pal: + lines_per_frame=625.0 + frames_per_sec=25.0 + show_width=768 + elif options.ntsc: + lines_per_frame=525.0 + frames_per_sec=29.97002997 + show_width=640 + width=int(input_rate/(lines_per_frame*frames_per_sec)) + height=int(lines_per_frame) + + if filename=="sdl": + #Here comes the tv screen, you have to build and install + #gr-video-sdl for this (subproject of gnuradio, only in cvs + #for now) + try: + video_sink = video_sdl.sink_uc(frames_per_sec, width, height, 0, + show_width,height) + except: + print "gr-video-sdl is not installed" + print "realtime \"sdl\" video output window is not available" + raise SystemExit, 1 + self.dst=video_sink + else: + print "You can use the imagemagick display tool to show the resulting imagesequence" + print "use the following line to show the demodulated TV-signal:" + print "display -depth 8 -size " +str(width)+ "x" + str(height) + " gray:" +filename + print "(Use the spacebar to advance to next frames)" + file_sink=gr.file_sink(gr.sizeof_char, filename) + self.dst =file_sink + + if options.nframes is None: + self.connect(self.src, self.agc) + else: + self.head = gr.head(gr.sizeof_gr_complex, int(options.nframes*width*height)) + self.connect(self.src, self.head, self.agc) + + self.connect (self.agc, self.am_demod, self.invert_and_scale, + self.set_blacklevel, self.f2uc, self.dst) + +if __name__ == '__main__': + try: + my_top_block().run() + except KeyboardInterrupt: + pass diff --git a/gr-uhd/examples/usrp_wfm_rcv.py b/gr-uhd/examples/usrp_wfm_rcv.py new file mode 100755 index 000000000..7b35fbbe4 --- /dev/null +++ b/gr-uhd/examples/usrp_wfm_rcv.py @@ -0,0 +1,280 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2009,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, optfir, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form +from optparse import OptionParser +import sys +import wx + + +class wfm_rx_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=40, + help="set gain in dB (default is midpoint)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=87.9e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=108.1e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.frame = frame + self.panel = panel + + self.vol = 0 + self.state = "FREQ" + self.freq = 0 + + self.fm_freq_min = options.freq_min + self.fm_freq_max = options.freq_max + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 32e3 + audio_decim = int(demod_rate / audio_rate) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + nfilts = 32 + chan_coeffs = optfir.low_pass (nfilts, # gain + nfilts*usrp_rate, # sampling rate + 80e3, # passband cutoff + 115e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + rrate = usrp_rate / dev_rate + self.chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + self.guts = blks2.wfm_rcv (demod_rate, audio_decim) + + self.volume_control = gr.multiply_const_ff(self.vol) + + # sound card as final sink + self.audio_sink = audio.sink (int (audio_rate), + options.audio_output, + False) # ok_to_block + + # now wire it all together + self.connect (self.u, self.chan_filt, self.guts, + self.volume_control, self.audio_sink) + + self._build_gui(vbox, usrp_rate, demod_rate, audio_rate) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2 + + if options.volume is None: + g = self.volume_range() + options.volume = float(g[0]+g[1])/2 + + frange = self.u.get_freq_range() + if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.fm_freq_min or options.freq > self.fm_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + + # set initial values + + self.set_gain(options.gain) + self.set_vol(options.volume) + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + if 1: + self.src_fft = fftsink2.fft_sink_c(self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate, + ref_scale=32768.0, ref_level=0, y_divs=12) + self.connect (self.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 1: + post_filt_fft = fftsink2.fft_sink_f(self.panel, title="Post Demod", + fft_size=1024, sample_rate=usrp_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.fm_demod, post_filt_fft) + vbox.Add (post_filt_fft.win, 4, wx.EXPAND) + + if 0: + post_deemph_fft = fftsink2.fft_sink_f(self.panel, title="Post Deemph", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-20) + self.connect (self.guts.deemph, post_deemph_fft) + vbox.Add (post_deemph_fft.win, 4, wx.EXPAND) + + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(self.fm_freq_min, self.fm_freq_max, 0.1e6), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_vol) + hbox.Add((5,0), 1) + + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_vol(self.vol + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_vol(self.vol - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control.set_k(10**(self.vol/10)) + self.myform['volume'].set_value(self.vol) + self.update_status_bar () + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + + r = self.u.set_center_freq(target_freq) + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.vol, self.state) + self._set_status_msg(msg, 1) + self.src_fft.set_baseband_freq(self.freq) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +if __name__ == '__main__': + app = stdgui2.stdapp (wfm_rx_block, "USRP WFM RX") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_wfm_rcv2_nogui.py b/gr-uhd/examples/usrp_wfm_rcv2_nogui.py new file mode 100755 index 000000000..013a6864f --- /dev/null +++ b/gr-uhd/examples/usrp_wfm_rcv2_nogui.py @@ -0,0 +1,151 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, optfir, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from optparse import OptionParser +from usrpm import usrp_dbid +import sys +import math + +class wfm_rx_block (gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("", "--f1", type="eng_float", default=100.7e6, + help="set 1st station frequency to FREQ", metavar="FREQ") + parser.add_option("", "--f2", type="eng_float", default=102.5e6, + help="set 2nd station freq to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=40, + help="set gain in dB (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=87.9e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=108.1e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + if abs(options.f1 - options.f2) > 5.5e6: + print "Sorry, two stations must be within 5.5MHz of each other" + raise SystemExit + + f = (options.f1, options.f2) + + self.vol = .1 + self.state = "FREQ" + + self.fm_freq_min = options.freq_min + self.fm_freq_max = options.freq_max + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=2) + + # Set front end channel mapping + self.u.set_subdev_spec("A:0 A:0") + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 32e3 + audio_decim = int(demod_rate / audio_rate) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + # Make sure dboard can suppor the required frequencies + frange = self.u.get_freq_range() + if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + + # sound card as final sink + self.audio_sink = audio.sink(int(audio_rate), options.audio_output) + + # taps for channel filter + nfilts = 32 + chan_coeffs = optfir.low_pass (nfilts, # gain + nfilts*usrp_rate, # sampling rate + 80e3, # passband cutoff + 115e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + rrate = usrp_rate / dev_rate + + # set front end PLL to middle frequency + mid_freq = (f[0] + f[1]) / 2.0 + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + for n in range(2): + chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + guts = blks2.wfm_rcv (demod_rate, audio_decim) + volume_control = gr.multiply_const_ff(self.vol) + + #self.connect((self.di, n), chan_filt) + self.connect((self.u, n), chan_filt) + self.connect(chan_filt, guts, volume_control) + self.connect(volume_control, (self.audio_sink, n)) + + # Test the the requested frequencies are in range + if(f[n] < self.fm_freq_min or f[n] > self.fm_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # Tune each channel by setting the RF freq to mid_freq and the + # DDC freq to f[n]. + tr = uhd.tune_request(f[n], rf_freq=mid_freq, + rf_freq_policy=uhd.tune_request.POLICY_MANUAL) + self.u.set_center_freq(tr, n) + + # Set gain for each channel + self.set_gain(options.gain, n) + + def set_vol (self, vol): + self.vol = vol + self.volume_control.set_k(self.vol) + + + def set_gain(self, gain, n): + self.u.set_gain(gain, n) + +if __name__ == '__main__': + tb = wfm_rx_block() + try: + tb.run() + except KeyboardInterrupt: + pass diff --git a/gr-uhd/examples/usrp_wfm_rcv_fmdet.py b/gr-uhd/examples/usrp_wfm_rcv_fmdet.py new file mode 100755 index 000000000..53ad6edbf --- /dev/null +++ b/gr-uhd/examples/usrp_wfm_rcv_fmdet.py @@ -0,0 +1,347 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, optfir, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form, scopesink2 +from optparse import OptionParser +import sys +import wx + +import os +print os.getpid() +raw_input() + +class wfm_rx_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=65, + help="set gain in dB (default is midpoint)") + parser.add_option("-s", "--squelch", type="eng_float", default=0, + help="set squelch level (default is 0)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=87.9e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=108.1e6, + help="Set a maximum frequency [default=%default]") + + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.frame = frame + self.panel = panel + + self.vol = 0 + self.state = "FREQ" + self.freq = 0 + + self.fm_freq_min = options.freq_min + self.fm_freq_max = options.freq_max + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 48e3 + audio_decim = 10 + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + nfilts = 32 + chan_coeffs = gr.firdes.low_pass_2(10*nfilts, # gain + nfilts*usrp_rate, # sampling rate + 90e3, # passband cutoff + 30e3, # transition bw + 70) # stopband attenuation + rrate = usrp_rate / dev_rate + self.chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + self.guts = blks2.wfm_rcv_fmdet (demod_rate, audio_decim) + + chan_rate = audio_rate / (demod_rate/audio_decim) + self.rchan_filt = blks2.pfb_arb_resampler_fff(chan_rate) + self.lchan_filt = blks2.pfb_arb_resampler_fff(chan_rate) + + # FIXME rework {add,multiply}_const_* to handle multiple streams + self.volume_control_l = gr.multiply_const_ff(self.vol) + self.volume_control_r = gr.multiply_const_ff(self.vol) + + # sound card as final sink + self.audio_sink = audio.sink (int (audio_rate), + options.audio_output, + False) # ok_to_block + + # now wire it all together + self.connect (self.u, self.chan_filt, self.guts) + self.connect((self.guts, 0), self.lchan_filt, + self.volume_control_l, (self.audio_sink,0)) + self.connect((self.guts, 1), self.rchan_filt, + self.volume_control_r, (self.audio_sink,1)) + + try: + self.guts.stereo_carrier_pll_recovery.squelch_enable(True) + except: + print "FYI: This implementation of the stereo_carrier_pll_recovery has no squelch implementation yet" + + + self._build_gui(vbox, usrp_rate, demod_rate, audio_rate) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + if options.volume is None: + g = self.volume_range() + options.volume = float(g[0]+g[1])/2 + + if abs(options.freq) < 1e6: + options.freq *= 1e6 + + frange = self.u.get_freq_range() + if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.fm_freq_min or options.freq > self.fm_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # set initial values + self.set_gain(options.gain) + self.set_vol(options.volume) + try: + self.guts.stereo_carrier_pll_recovery.set_lock_threshold(options.squelch) + except: + print "FYI: This implementation of the stereo_carrier_pll_recovery has no squelch implementation yet" + + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + if 1: + self.src_fft = fftsink2.fft_sink_c(self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate, + ref_scale=32768.0, ref_level=0, y_divs=12) + self.connect (self.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 1: + post_fm_demod_fft = fftsink2.fft_sink_f(self.panel, title="Post FM Demod", + fft_size=512, sample_rate=demod_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.fm_demod, post_fm_demod_fft) + vbox.Add (post_fm_demod_fft.win, 4, wx.EXPAND) + + if 0: + post_stereo_carrier_generator_fft = fftsink2.fft_sink_c (self.panel, title="Post Stereo_carrier_generator", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.stereo_carrier_generator, post_stereo_carrier_generator_fft) + vbox.Add (post_stereo_carrier_generator_fft.win, 4, wx.EXPAND) + + if 0: + post_deemphasis_left = fftsink2.fft_sink_f (self.panel, title="Post_Deemphasis_Left", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.deemph_Left, post_deemphasis_left) + vbox.Add (post_deemphasis_left.win, 4, wx.EXPAND) + + if 0: + post_deemphasis_right = fftsink2.fft_sink_f(self.panel, title="Post_Deemphasis_Right", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-20) + self.connect (self.guts.deemph_Left, post_deemphasis_right) + vbox.Add (post_deemphasis_right.win, 4, wx.EXPAND) + + + if 0: + LmR_fft = fftsink2.fft_sink_f(self.panel, title="LmR", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-20) + self.connect (self.guts.LmR_real,LmR_fft) + vbox.Add (LmR_fft.win, 4, wx.EXPAND) + + if 0: + self.scope = scopesink2.scope_sink_f(self.panel, sample_rate=demod_rate) + self.connect (self.guts.fm_demod,self.scope) + vbox.Add (self.scope.win,4,wx.EXPAND) + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(self.fm_freq_min, self.fm_freq_max, 0.1e6), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_vol) + hbox.Add((5,0), 1) + + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + + myform['sqlch_thrsh'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Stereo Squelch Threshold", + weight=3, range=(0.0,1.0,0.01), + callback=self.set_squelch) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_vol(self.vol + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_vol(self.vol - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control_l.set_k(10**(self.vol/10)) + self.volume_control_r.set_k(10**(self.vol/10)) + self.myform['volume'].set_value(self.vol) + self.update_status_bar () + + def set_squelch(self,squelch_threshold): + try: + self.guts.stereo_carrier_pll_recovery.set_lock_threshold(squelch_threshold); + except: + print "FYI: This implementation of the stereo_carrier_pll_recovery has no squelch implementation yet" + + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + + r = self.u.set_center_freq(target_freq) + + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.vol, self.state) + self._set_status_msg(msg, 1) + self.src_fft.set_baseband_freq(self.freq) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +if __name__ == '__main__': + app = stdgui2.stdapp (wfm_rx_block, "USRP WFM RX") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_wfm_rcv_nogui.py b/gr-uhd/examples/usrp_wfm_rcv_nogui.py new file mode 100755 index 000000000..ffeda4493 --- /dev/null +++ b/gr-uhd/examples/usrp_wfm_rcv_nogui.py @@ -0,0 +1,168 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, optfir, audio, blks2, uhd +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import sys + +class wfm_rx_block (gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=87.9e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=108.1e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.state = "FREQ" + self.freq = 0 + + self.fm_freq_min = options.freq_min + self.fm_freq_max = options.freq_max + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 32e3 + audio_decim = int(demod_rate / audio_rate) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + nfilts = 32 + chan_coeffs = optfir.low_pass (nfilts, # gain + nfilts*usrp_rate, # sampling rate + 80e3, # passband cutoff + 115e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + rrate = usrp_rate / dev_rate + self.chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + self.guts = blks2.wfm_rcv (demod_rate, audio_decim) + + self.volume_control = gr.multiply_const_ff(1) + + # sound card as final sink + self.audio_sink = audio.sink(int(audio_rate), + options.audio_output, + False) # ok_to_block + + # now wire it all together + self.connect (self.u, self.chan_filt, self.guts, + self.volume_control, self.audio_sink) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + if options.volume is None: + g = self.volume_range() + options.volume = float(g[0]+g[1])/2 + + frange = self.u.get_freq_range() + if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.fm_freq_min or options.freq > self.fm_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # set initial values + self.set_gain(options.gain) + self.set_vol(options.volume) + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control.set_k(10**(self.vol/10)) + self.update_status_bar () + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + + r = self.u.set_center_freq(target_freq) + + if r: + self.freq = target_freq + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Freq: %s Volume:%f Setting:%s" % ( + eng_notation.num_to_str(self.freq), self.vol, self.state) + self._set_status_msg(msg, 1) + + def _set_status_msg(self, msg, which=0): + print msg + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +if __name__ == '__main__': + tb = wfm_rx_block() + try: + tb.run() + except KeyboardInterrupt: + pass diff --git a/gr-uhd/examples/usrp_wfm_rcv_pll.py b/gr-uhd/examples/usrp_wfm_rcv_pll.py new file mode 100755 index 000000000..2cb4e4068 --- /dev/null +++ b/gr-uhd/examples/usrp_wfm_rcv_pll.py @@ -0,0 +1,340 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, optfir, audio, blks2, uhd +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form, scopesink2 +from optparse import OptionParser +import sys +import wx + +class wfm_rx_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=65, + help="set gain in dB (default is midpoint)") + parser.add_option("-s", "--squelch", type="eng_float", default=0, + help="set squelch level (default is 0)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=87.9e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=108.1e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.frame = frame + self.panel = panel + + self.vol = 0 + self.state = "FREQ" + self.freq = 0 + + self.fm_freq_min = options.freq_min + self.fm_freq_max = options.freq_max + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 48e3 + audio_decim = 10 + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + nfilts = 32 + chan_coeffs = gr.firdes.low_pass_2 (nfilts, # gain + nfilts*usrp_rate, # sampling rate + 90e3, # passband cutoff + 30e3, # stopband cutoff + 70) # stopband attenuation + rrate = usrp_rate / dev_rate + self.chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + + self.guts = blks2.wfm_rcv_pll (demod_rate, audio_decim) + + chan_rate = audio_rate / (demod_rate/audio_decim) + self.rchan_filt = blks2.pfb_arb_resampler_fff(chan_rate) + self.lchan_filt = blks2.pfb_arb_resampler_fff(chan_rate) + + # FIXME rework {add,multiply}_const_* to handle multiple streams + self.volume_control_l = gr.multiply_const_ff(self.vol) + self.volume_control_r = gr.multiply_const_ff(self.vol) + + # sound card as final sink + self.audio_sink = audio.sink (int (audio_rate), + options.audio_output, + False) # ok_to_block + + # now wire it all together + self.connect (self.u, self.chan_filt, self.guts) + self.connect((self.guts, 0), self.lchan_filt, + self.volume_control_l, (self.audio_sink,0)) + self.connect((self.guts, 1), self.rchan_filt, + self.volume_control_r, (self.audio_sink,1)) + + try: + self.guts.stereo_carrier_pll_recovery.squelch_enable(True) + except: + print "FYI: This implementation of the stereo_carrier_pll_recovery has no squelch implementation yet" + + + self._build_gui(vbox, usrp_rate, demod_rate, audio_rate) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + if options.volume is None: + g = self.volume_range() + options.volume = float(g[0]+g[1])/2 + + frange = self.u.get_freq_range() + if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.fm_freq_min or options.freq > self.fm_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # set initial values + self.set_gain(options.gain) + self.set_vol(options.volume) + try: + self.guts.stereo_carrier_pll_recovery.set_lock_threshold(options.squelch) + except: + print "FYI: This implementation of the stereo_carrier_pll_recovery has no squelch implementation yet" + + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + if 1: + self.src_fft = fftsink2.fft_sink_c(self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate, + ref_scale=32768.0, ref_level=0, y_divs=12) + self.connect (self.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 1: + post_fm_demod_fft = fftsink2.fft_sink_f(self.panel, title="Post FM Demod", + fft_size=512, sample_rate=demod_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.fm_demod, post_fm_demod_fft) + vbox.Add (post_fm_demod_fft.win, 4, wx.EXPAND) + + if 0: + post_stereo_carrier_generator_fft = fftsink2.fft_sink_c (self.panel, title="Post Stereo_carrier_generator", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.stereo_carrier_generator, post_stereo_carrier_generator_fft) + vbox.Add (post_stereo_carrier_generator_fft.win, 4, wx.EXPAND) + + if 0: + post_deemphasis_left = fftsink2.fft_sink_f (self.panel, title="Post_Deemphasis_Left", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.deemph_Left, post_deemphasis_left) + vbox.Add (post_deemphasis_left.win, 4, wx.EXPAND) + + if 0: + post_deemphasis_right = fftsink2.fft_sink_f(self.panel, title="Post_Deemphasis_Right", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-20) + self.connect (self.guts.deemph_Left, post_deemphasis_right) + vbox.Add (post_deemphasis_right.win, 4, wx.EXPAND) + + + if 0: + LmR_fft = fftsink2.fft_sink_f(self.panel, title="LmR", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-20) + self.connect (self.guts.LmR_real,LmR_fft) + vbox.Add (LmR_fft.win, 4, wx.EXPAND) + + if 0: + self.scope = scopesink2.scope_sink_f(self.panel, sample_rate=demod_rate) + self.connect (self.guts.fm_demod,self.scope) + vbox.Add (self.scope.win,4,wx.EXPAND) + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(self.fm_freq_min, self.fm_freq_max, 0.1e6), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_vol) + hbox.Add((5,0), 1) + + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + + myform['sqlch_thrsh'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Stereo Squelch Threshold", + weight=3, range=(0.0,1.0,0.01), + callback=self.set_squelch) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_vol(self.vol + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_vol(self.vol - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control_l.set_k(10**(self.vol/10)) + self.volume_control_r.set_k(10**(self.vol/10)) + self.myform['volume'].set_value(self.vol) + self.update_status_bar () + + def set_squelch(self,squelch_threshold): + try: + self.guts.stereo_carrier_pll_recovery.set_lock_threshold(squelch_threshold); + except: + print "FYI: This implementation of the stereo_carrier_pll_recovery has no squelch implementation yet" + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + + r = self.u.set_center_freq(target_freq) + + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.vol, self.state) + self._set_status_msg(msg, 1) + self.src_fft.set_baseband_freq(self.freq) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +if __name__ == '__main__': + app = stdgui2.stdapp (wfm_rx_block, "USRP WFM RX") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_wfm_rcv_sca.py b/gr-uhd/examples/usrp_wfm_rcv_sca.py new file mode 100755 index 000000000..1c6154871 --- /dev/null +++ b/gr-uhd/examples/usrp_wfm_rcv_sca.py @@ -0,0 +1,397 @@ +#!/usr/bin/env python +# +# Copyright 2006,2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +# + +""" +Here is a bit of code that will receive SCA analog subcarriers of FM +Broadcast Stations using the USRP. It is a modified version of +usrp_wfm_rcv.py. + +Common SCA frequencies are 67 kHz and 92 kHz. SCA is used for Reading +Services for the Blind, Background Music, Foreign Language Services, and +other services. Remember you may hear static when tuned to a FM station +because this code only outputs SCA audio. + +The USRP gain is critical for good decoding. Adjust for minimum noise. + I use the Post FM Demod FFT to check for SCA subcarriers and to adjust +the USRP gain for the lowest noise floor. The stereo pilot at 19 KHz, +the stereo difference signal around 38 KHz, and RDS at 57 KHz are also +displayed on the Post FM Demod FFT if present. + +The range below 67 kHz is used for SCA only when Stereo is not used. + +The SCA recieve range is not as far as the main FM carrier receive range +so tune in strong local stations first. + +I tried to comment the code with the various parameters. There seems to +be several choices for a couple of them. I coded the common ones I see +here. + +In the local area there are a couple of stations using digital SCA. +These look similar to narrow DRM signals and I wonder if they are using +OFDM. +""" + + +from gnuradio import gr, optfir, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form +from optparse import OptionParser +import sys +import math +import wx + +class wfm_rx_sca_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=40, + help="set gain in dB (default is midpoint)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=87.9e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=108.1e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.frame = frame + self.panel = panel + + self.vol = 0 + self.state = "FREQ" + self.freq = 0 + + self.fm_freq_min = options.freq_min + self.fm_freq_max = options.freq_max + + # build graph + + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 32e3 + sca_demod_rate = 64e3 + audio_decim = int(demod_rate / audio_rate) + sca_chanfilt_decim = int(demod_rate / sca_demod_rate) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + nfilts = 32 + chan_coeffs = optfir.low_pass (nfilts, # gain + nfilts*usrp_rate, # sampling rate + 100e3, # passband cutoff + 140e3, # stopband cutoff + 0.1, # passband ripple + 60) # stopband attenuation + rrate = usrp_rate / dev_rate + self.chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + #Create demodulator block for Main FM Channel + max_dev = 75e3 + fm_demod_gain = demod_rate/(2*math.pi*max_dev) + self.fm_demod = gr.quadrature_demod_cf (fm_demod_gain) + + # Note - deemphasis is not applied to the Main FM Channel as + # main audio is not decoded + + # SCA Devation is 10% of carrier but some references say 20% + # if mono with one SCA (6 KHz seems typical) + max_sca_dev = 6e3 + + # Create filter to get SCA channel we want + sca_chan_coeffs = gr.firdes.low_pass (1.0, # gain + demod_rate, # sampling rate + max_sca_dev, # cutoff freq + max_sca_dev/3, # trans. band + gr.firdes.WIN_HANN) # filter type + + self.ddc = gr.freq_xlating_fir_filter_fcf(sca_chanfilt_decim, # decim rate + sca_chan_coeffs, # taps + 0, # freq translation amount (Gets set by the UI) + demod_rate) # input sample rate + + #Create demodulator block for SCA Channel + sca_demod_gain = sca_demod_rate/(2*math.pi*max_sca_dev) + self.fm_demod_sca = gr.quadrature_demod_cf (sca_demod_gain) + + + # SCA analog audio is bandwidth limited to 5 KHz + max_sca_audio_freq = 5.0e3 + + # SCA analog deephasis is 150 uS (75 uS may be used) + sca_tau = 150e-6 + + # compute FIR filter taps for SCA audio filter + audio_coeffs = gr.firdes.low_pass (1.0, # gain + sca_demod_rate, # sampling rate + max_sca_audio_freq, # cutoff freq + max_sca_audio_freq/2.5, # trans. band + gr.firdes.WIN_HAMMING) + + # input: float; output: float + self.audio_filter = gr.fir_filter_fff (audio_decim, audio_coeffs) + + # Create deemphasis block that is applied after SCA demodulation + self.deemph = blks2.fm_deemph (audio_rate, sca_tau) + + self.volume_control = gr.multiply_const_ff(self.vol) + + # sound card as final sink + self.audio_sink = audio.sink (int (audio_rate), + options.audio_output, + False) # ok_to_block + + # now wire it all together + self.connect (self.u, self.chan_filt, self.fm_demod, + self.ddc, self.fm_demod_sca) + self.connect (self.fm_demod_sca, self.audio_filter, + self.deemph, self.volume_control, + self.audio_sink) + + self._build_gui(vbox, usrp_rate, demod_rate, sca_demod_rate, audio_rate) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2 + + if options.volume is None: + g = self.volume_range() + options.volume = float(g[0]+g[1])/2 + + frange = self.u.get_freq_range() + if(frange.start() > self.fm_freq_max or frange.stop() < self.fm_freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.fm_freq_min or options.freq > self.fm_freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # set initial values + + self.set_gain(options.gain) + self.set_vol(options.volume) + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + self.set_sca_freq(67000) # A common SCA Frequency + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, sca_demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + def _form_set_sca_freq(kv): + return self.set_sca_freq(kv['sca_freq']) + + if 1: + self.src_fft = fftsink2.fft_sink_c(self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate, + ref_scale=32768.0, ref_level=0, y_divs=12) + self.connect (self.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 1: + post_demod_fft = fftsink2.fft_sink_f(self.panel, title="Post FM Demod", + fft_size=2048, sample_rate=demod_rate, + y_per_div=10, ref_level=0) + self.connect (self.fm_demod, post_demod_fft) + vbox.Add (post_demod_fft.win, 4, wx.EXPAND) + + if 0: + post_demod_sca_fft = fftsink2.fft_sink_f(self.panel, title="Post SCA Demod", + fft_size=1024, sample_rate=sca_demod_rate, + y_per_div=10, ref_level=0) + self.connect (self.fm_demod_sca, post_demod_sca_fft) + vbox.Add (post_demod_sca_fft.win, 4, wx.EXPAND) + + if 0: + post_deemph_fft = fftsink2.fft_sink_f (self.panel, title="Post SCA Deemph", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=-20) + self.connect (self.deemph, post_deemph_fft) + vbox.Add (post_deemph_fft.win, 4, wx.EXPAND) + + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(self.fm_freq_min, self.fm_freq_max, 0.1e6), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['sca_freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="SCA", weight=1, + callback=myform.check_input_and_call(_form_set_sca_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['sca_freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(38e3, 100e3, 1.0e3), + callback=self.set_sca_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_vol) + hbox.Add((5,0), 1) + + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.stop(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_vol(self.vol + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_vol(self.vol - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control.set_k(10**(self.vol/10)) + self.myform['volume'].set_value(self.vol) + self.update_status_bar () + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + + Tuning is a two step process. First we ask the front-end to + tune as close to the desired frequency as it can. Then we use + the result of that operation and our target_frequency to + determine the value for the digital down converter. + """ + r = self.u.set_center_freq(target_freq) + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + self._set_status_msg("Failed", 0) + return False + + def set_sca_freq(self, target_sca_freq): + + self.ddc.set_center_freq(-target_sca_freq) + self.myform['sca_freq'].set_value(target_sca_freq) # update displayed value + self.myform['sca_freq_slider'].set_value(target_sca_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.vol, self.state) + self._set_status_msg(msg, 1) + self.src_fft.set_baseband_freq(self.freq) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +if __name__ == '__main__': + app = stdgui2.stdapp (wfm_rx_sca_block, "USRP WFM SCA RX") + app.MainLoop () diff --git a/gr-uhd/examples/usrp_wxapt_rcv.py b/gr-uhd/examples/usrp_wxapt_rcv.py new file mode 100755 index 000000000..5b44398d1 --- /dev/null +++ b/gr-uhd/examples/usrp_wxapt_rcv.py @@ -0,0 +1,276 @@ +#!/usr/bin/env python +# +# Copyright 2005-2007,2011 Free Software Foundation, Inc. +# +# This file is part of GNU Radio +# +# GNU Radio is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, audio, blks2, uhd +from gnuradio.eng_option import eng_option +from gnuradio.wxgui import slider, powermate +from gnuradio.wxgui import stdgui2, fftsink2, form +from optparse import OptionParser +import sys +import wx + + +class wxapt_rx_block (stdgui2.std_top_block): + def __init__(self,frame,panel,vbox,argv): + stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) + + parser=OptionParser(option_class=eng_option) + parser.add_option("-a", "--address", type="string", + default="addr=192.168.10.2", + help="Address of UHD device, [default=%default]") + parser.add_option("-A", "--antenna", type="string", default=None, + help="select Rx Antenna where appropriate") + parser.add_option("-f", "--freq", type="eng_float", default=137.5e6, + help="set frequency to FREQ", metavar="FREQ") + parser.add_option("-g", "--gain", type="eng_float", default=None, + help="set gain in dB (default is midpoint)") + parser.add_option("-V", "--volume", type="eng_float", default=None, + help="set volume (default is midpoint)") + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") + parser.add_option("", "--freq-min", type="eng_float", default=137e6, + help="Set a minimum frequency [default=%default]") + parser.add_option("", "--freq-max", type="eng_float", default=138e6, + help="Set a maximum frequency [default=%default]") + + (options, args) = parser.parse_args() + if len(args) != 0: + parser.print_help() + sys.exit(1) + + self.frame = frame + self.panel = panel + + self.vol = 0 + self.state = "FREQ" + self.freq = 0 + + self.freq_min = options.freq_min + self.freq_max = options.freq_max + + # build graph + self.u = uhd.usrp_source(device_addr=options.address, + io_type=uhd.io_type.COMPLEX_FLOAT32, + num_channels=1) + + usrp_rate = 320e3 + demod_rate = 320e3 + audio_rate = 32e3 + audio_decim = int(demod_rate / audio_rate) + + self.u.set_samp_rate(usrp_rate) + dev_rate = self.u.get_samp_rate() + + nfilts = 32 + chan_coeffs = gr.firdes.low_pass_2 (nfilts, # gain + nfilts*usrp_rate, # sampling rate + 40e3, # passband cutoff + 20e3, # transition bw + 60) # stopband attenuation + rrate = usrp_rate / dev_rate + self.chan_filt = blks2.pfb_arb_resampler_ccf(rrate, chan_coeffs, nfilts) + + self.guts = blks2.wfm_rcv (demod_rate, audio_decim) + + self.volume_control = gr.multiply_const_ff(self.vol) + + # sound card as final sink + self.audio_sink = audio.sink (int (audio_rate), options.audio_output) + + # now wire it all together + self.connect (self.u, self.chan_filt, self.guts, + self.volume_control, self.audio_sink) + + self._build_gui(vbox, usrp_rate, demod_rate, audio_rate) + + if options.gain is None: + # if no gain was specified, use the mid-point in dB + g = self.u.get_gain_range() + options.gain = float(g.start()+g.stop())/2.0 + + if options.volume is None: + g = self.volume_range() + options.volume = float(g[0]+g[1])/2 + + frange = self.u.get_freq_range() + if(frange.start() > self.freq_max or frange.stop() < self.freq_min): + sys.stderr.write("Radio does not support required frequency range.\n") + sys.exit(1) + if(options.freq < self.freq_min or options.freq > self.freq_max): + sys.stderr.write("Requested frequency is outside of required frequency range.\n") + sys.exit(1) + + # set initial values + self.set_gain(options.gain) + self.set_vol(options.volume) + if not(self.set_freq(options.freq)): + self._set_status_msg("Failed to set initial frequency") + + + def _set_status_msg(self, msg, which=0): + self.frame.GetStatusBar().SetStatusText(msg, which) + + + def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): + + def _form_set_freq(kv): + return self.set_freq(kv['freq']) + + + if 1: + self.src_fft = fftsink2.fft_sink_c (self.panel, title="Data from USRP", + fft_size=512, sample_rate=usrp_rate, + ref_scale=32768.0, ref_level=0, y_divs=12) + self.connect (self.u, self.src_fft) + vbox.Add (self.src_fft.win, 4, wx.EXPAND) + + if 1: + post_deemph_fft = fftsink2.fft_sink_f (self.panel, title="Post Deemph", + fft_size=512, sample_rate=demod_rate, + y_per_div=10, ref_level=-20) + self.connect (self.guts.deemph, post_deemph_fft) + vbox.Add (post_deemph_fft.win, 4, wx.EXPAND) + + if 1: + post_filt_fft = fftsink2.fft_sink_f (self.panel, title="Post Filter", + fft_size=512, sample_rate=audio_rate, + y_per_div=10, ref_level=0) + self.connect (self.guts.audio_filter, post_filt_fft) + vbox.Add (post_filt_fft.win, 4, wx.EXPAND) + + + # control area form at bottom + self.myform = myform = form.form() + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + myform['freq'] = form.float_field( + parent=self.panel, sizer=hbox, label="Freq", weight=1, + callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) + + hbox.Add((5,0), 0) + myform['freq_slider'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, + range=(self.freq_min, self.freq_max, 0.0005e6), + callback=self.set_freq) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + hbox = wx.BoxSizer(wx.HORIZONTAL) + hbox.Add((5,0), 0) + + myform['volume'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume", + weight=3, range=self.volume_range(), + callback=self.set_vol) + hbox.Add((5,0), 1) + + g = self.u.get_gain_range() + myform['gain'] = \ + form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", + weight=3, range=(g.start(), g.start(), g.step()), + callback=self.set_gain) + hbox.Add((5,0), 0) + vbox.Add(hbox, 0, wx.EXPAND) + + try: + self.knob = powermate.powermate(self.frame) + self.rot = 0 + powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) + powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) + except: + print "FYI: No Powermate or Contour Knob found" + + + def on_rotate (self, event): + self.rot += event.delta + if (self.state == "FREQ"): + if self.rot >= 3: + self.set_freq(self.freq + .1e6) + self.rot -= 3 + elif self.rot <=-3: + self.set_freq(self.freq - .1e6) + self.rot += 3 + else: + step = self.volume_range()[2] + if self.rot >= 3: + self.set_vol(self.vol + step) + self.rot -= 3 + elif self.rot <=-3: + self.set_vol(self.vol - step) + self.rot += 3 + + def on_button (self, event): + if event.value == 0: # button up + return + self.rot = 0 + if self.state == "FREQ": + self.state = "VOL" + else: + self.state = "FREQ" + self.update_status_bar () + + + def set_vol (self, vol): + g = self.volume_range() + self.vol = max(g[0], min(g[1], vol)) + self.volume_control.set_k(10**(self.vol/10)) + self.myform['volume'].set_value(self.vol) + self.update_status_bar () + + def set_freq(self, target_freq): + """ + Set the center frequency we're interested in. + + @param target_freq: frequency in Hz + @rypte: bool + """ + + r = self.u.set_center_freq(target_freq) + + if r: + self.freq = target_freq + self.myform['freq'].set_value(target_freq) # update displayed value + self.myform['freq_slider'].set_value(target_freq) # update displayed value + self.update_status_bar() + self._set_status_msg("OK", 0) + return True + + self._set_status_msg("Failed", 0) + return False + + def set_gain(self, gain): + self.myform['gain'].set_value(gain) # update displayed value + self.u.set_gain(gain) + + def update_status_bar (self): + msg = "Volume:%r Setting:%s" % (self.vol, self.state) + self._set_status_msg(msg, 1) + self.src_fft.set_baseband_freq(self.freq) + + def volume_range(self): + return (-20.0, 0.0, 0.5) + + +if __name__ == '__main__': + app = stdgui2.stdapp (wxapt_rx_block, "USRP WXAPT RX") + app.MainLoop () diff --git a/gr-uhd/include/gr_uhd_amsg_source.h b/gr-uhd/include/gr_uhd_amsg_source.h index bc0feb438..accf15ce2 100644 --- a/gr-uhd/include/gr_uhd_amsg_source.h +++ b/gr-uhd/include/gr_uhd_amsg_source.h @@ -28,6 +28,10 @@ class uhd_amsg_source; +/*! + * \brief Make a new USRP asynchronous message-based source block. + * \ingroup uhd_blk + */ GR_UHD_API boost::shared_ptr<uhd_amsg_source> uhd_make_amsg_source( const uhd::device_addr_t &device_addr, gr_msg_queue_sptr msgq diff --git a/gr-uhd/include/gr_uhd_usrp_sink.h b/gr-uhd/include/gr_uhd_usrp_sink.h index c1fc3b09e..f11d00063 100644 --- a/gr-uhd/include/gr_uhd_usrp_sink.h +++ b/gr-uhd/include/gr_uhd_usrp_sink.h @@ -30,6 +30,7 @@ class uhd_usrp_sink; /*! * \brief Make a new USRP sink block. + * \ingroup uhd_blk * * The USRP sink block reads a stream and transmits the samples. * The sink block also provides API calls for transmitter settings. diff --git a/gr-uhd/include/gr_uhd_usrp_source.h b/gr-uhd/include/gr_uhd_usrp_source.h index f8ac9361e..fecc6e94d 100644 --- a/gr-uhd/include/gr_uhd_usrp_source.h +++ b/gr-uhd/include/gr_uhd_usrp_source.h @@ -30,6 +30,7 @@ class uhd_usrp_source; /*! * \brief Make a new USRP source block. + * \ingroup uhd_blk * * The USRP source block receives samples and writes to a stream. * The source block also provides API calls for receiver settings. diff --git a/gr-uhd/swig/Makefile.swig.gen b/gr-uhd/swig/Makefile.swig.gen index b73ccd3c4..62adf8958 100644 --- a/gr-uhd/swig/Makefile.swig.gen +++ b/gr-uhd/swig/Makefile.swig.gen @@ -105,7 +105,7 @@ _uhd_swig_la_CXXFLAGS = \ $(uhd_swig_la_swig_cxxflags) python/uhd_swig.cc: uhd_swig.py -uhd_swig.py: uhd_swig.i +uhd_swig.py: uhd_swig.i # Include the python dependencies for this file -include python/uhd_swig.d diff --git a/gr-uhd/swig/__init__.py b/gr-uhd/swig/__init__.py index 1f82b4a26..c63d3cc57 100644 --- a/gr-uhd/swig/__init__.py +++ b/gr-uhd/swig/__init__.py @@ -19,6 +19,12 @@ # Boston, MA 02110-1301, USA. # +''' +This is the GNU Radio UHD package. It is the interface to the UHD +library to connect to and send and receive data between the Ettus +Research, LLC product line. +''' + ######################################################################## # Prepare uhd swig module to make it more pythonic ######################################################################## |