uhd: moved usrp_am_mw_rcv from examples to gr-uhd/examples and made work with UHD. Needs more testing.

1 files changed, 0 insertions, 332 deletions

diff --git a/gnuradio-examples/python/usrp/usrp_am_mw_rcv.py b/gnuradio-examples/python/usrp/usrp_am_mw_rcv.py
deleted file mode 100755
index 60f6c5825..000000000
--- a/gnuradio-examples/python/usrp/usrp_am_mw_rcv.py
+++ /dev/null
@@ -1,332 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2005,2006,2007 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, eng_notation, optfir
-from gnuradio import audio
-from gnuradio import usrp
-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
-
-def pick_subdevice(u):
-    """
-    The user didn't specify a subdevice on the command line.
-    Try for one of these, in order: BASIC_RX,TV_RX, BASIC_RX, whatever is on side A.
-
-    @return a subdev_spec
-    """
-    return usrp.pick_subdev(u, (usrp_dbid.BASIC_RX,
-                                usrp_dbid.LF_RX,
-                                usrp_dbid.TV_RX,
-                                usrp_dbid.TV_RX_REV_2,
-				usrp_dbid.TV_RX_REV_3,
-				usrp_dbid.TV_RX_MIMO,
-                                usrp_dbid.TV_RX_REV_2_MIMO,
-				usrp_dbid.TV_RX_REV_3_MIMO))
-
-
-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("-R", "--rx-subdev-spec", type="subdev", default=None,
-                          help="select USRP Rx side A or B (default=A)")
-        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
-
-        #TODO: add an AGC after the channel filter and before the AM_demod
-        
-        self.u = usrp.source_c()                    # usrp is data source
-
-        adc_rate = self.u.adc_rate()                # 64 MS/s
-        usrp_decim = 250
-        self.u.set_decim_rate(usrp_decim)
-        usrp_rate = adc_rate / usrp_decim           # 256 kS/s
-        chanfilt_decim = 4
-        demod_rate = usrp_rate / chanfilt_decim     # 64 kHz
-        audio_decimation = 2
-        audio_rate = demod_rate / audio_decimation  # 32 kHz
-
-        if options.rx_subdev_spec is None:
-            options.rx_subdev_spec = pick_subdevice(self.u)
-
-        self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
-        self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
-        print "Using RX d'board %s" % (self.subdev.side_and_name(),)
-
-
-        chan_filt_coeffs = optfir.low_pass (1,           # gain
-                                            usrp_rate,   # sampling rate
-                                            8e3,        # passband cutoff
-                                            12e3,       # stopband cutoff
-                                            1.0,         # passband ripple
-                                            60)          # stopband attenuation
-        #print len(chan_filt_coeffs)
-        self.chan_filt = gr.fir_filter_ccf (chanfilt_decim, chan_filt_coeffs)
-        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.am_demod = gr.complex_to_mag()
-
-        self.volume_control = gr.multiply_const_ff(self.vol)
-
-        audio_filt_coeffs = optfir.low_pass (1,           # gain
-                                            demod_rate,   # sampling rate
-                                            8e3,        # passband cutoff
-                                            10e3,       # stopband cutoff
-                                            0.1,         # passband ripple
-                                            60)          # stopband attenuation
-        self.audio_filt=gr.fir_filter_fff(audio_decimation,audio_filt_coeffs)
-        # sound card as final sink
-        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.am_demod, self.audio_filt, self.volume_control, audio_sink)
-
-        self._build_gui(vbox, usrp_rate, demod_rate, audio_rate)
-
-        if options.gain is None:
-            g = self.subdev.gain_range()
-            if True:
-              # if no gain was specified, use the maximum gain available 
-              # (usefull for Basic_RX which is relatively deaf and the most probable board to be used for AM)
-              # TODO: check db type to decide on default gain.
-              options.gain = float(g[1])
-            else:
-              # if no gain was specified, use the mid-point in dB
-              options.gain = float(g[0]+g[1])/2
-
-
-        if options.volume is None:
-            g = self.volume_range()
-            options.volume = float(g[0]*3+g[1])/4
-            
-        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")
-
-
-    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=0.0, 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)
-
-        myform['gain'] = \
-            form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain",
-                                        weight=3, range=self.subdev.gain_range(),
-                                        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 = usrp.tune(self.u, 0, self.subdev, target_freq  + self.IF_freq)
-        #TODO: check if db is inverting the spectrum or not to decide if we should do + self.IF_freq  or - self.IF_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.subdev.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 ()