diff options
Diffstat (limited to 'gr-uhd/examples/python')
| -rw-r--r-- | gr-uhd/examples/python/CMakeLists.txt | 42 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/fm_tx4.py | 208 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/fm_tx_2_daughterboards.py | 212 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/max_power.py | 140 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_am_mw_rcv.py | 313 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_nbfm_ptt.py | 489 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_nbfm_rcv.py | 380 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_spectrum_sense.py | 258 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_tv_rcv.py | 443 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_tv_rcv_nogui.py | 214 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wfm_rcv.py | 286 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py | 154 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py | 349 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wfm_rcv_nogui.py | 175 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wfm_rcv_pll.py | 346 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wfm_rcv_sca.py | 403 | ||||
| -rwxr-xr-x | gr-uhd/examples/python/usrp_wxapt_rcv.py | 282 |
17 files changed, 0 insertions, 4694 deletions
diff --git a/gr-uhd/examples/python/CMakeLists.txt b/gr-uhd/examples/python/CMakeLists.txt deleted file mode 100644 index 7642b536b..000000000 --- a/gr-uhd/examples/python/CMakeLists.txt +++ /dev/null @@ -1,42 +0,0 @@ -# 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(GrPython) - -GR_PYTHON_INSTALL( - PROGRAMS - 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 - DESTINATION ${GR_PKG_UHD_EXAMPLES_DIR} - COMPONENT "uhd_python" -) diff --git a/gr-uhd/examples/python/fm_tx4.py b/gr-uhd/examples/python/fm_tx4.py deleted file mode 100755 index f412ffb5d..000000000 --- a/gr-uhd/examples/python/fm_tx4.py +++ /dev/null @@ -1,208 +0,0 @@ -#!/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 -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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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) - - 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/python/fm_tx_2_daughterboards.py b/gr-uhd/examples/python/fm_tx_2_daughterboards.py deleted file mode 100755 index b5763e8e1..000000000 --- a/gr-uhd/examples/python/fm_tx_2_daughterboards.py +++ /dev/null @@ -1,212 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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.find_devices(uhd.device_addr(options.args)) - uhd_type = d[0].get('type') - - stream_args = uhd.stream_args('fc32', channels=range(2)) - self.u = uhd.usrp_sink(device_addr=options.args, stream_args=stream_args) - - # 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) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - self.u.set_antenna(options.antenna, 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/python/max_power.py b/gr-uhd/examples/python/max_power.py deleted file mode 100755 index 5d23f16af..000000000 --- a/gr-uhd/examples/python/max_power.py +++ /dev/null @@ -1,140 +0,0 @@ -#!/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, args, tx_enable, rx_enable): - gr.top_block.__init__(self) - - d = uhd.find_devices(uhd.device_addr(args)) - uhd_type = d[0].get('type') - - print "\nFound '%s' at args '%s'" % \ - (uhd_type, args) - - # 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" - stream_args = uhd.stream_args('fc32', channels=range(tx_nchan)) - self.u_tx = uhd.usrp_sink(device_addr=args, stream_args=stream_args) - 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=args, - 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", "--args", type="string", default="", - help="UHD device address args [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.args, 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/python/usrp_am_mw_rcv.py b/gr-uhd/examples/python/usrp_am_mw_rcv.py deleted file mode 100755 index 02863b32f..000000000 --- a/gr-uhd/examples/python/usrp_am_mw_rcv.py +++ /dev/null @@ -1,313 +0,0 @@ -#!/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 -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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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 no gain was specified, use the mid gain - options.gain = (g.start() + g.stop())/2.0 - - 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") - - 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/python/usrp_nbfm_ptt.py b/gr-uhd/examples/python/usrp_nbfm_ptt.py deleted file mode 100755 index 791b8cb99..000000000 --- a/gr-uhd/examples/python/usrp_nbfm_ptt.py +++ /dev/null @@ -1,489 +0,0 @@ -#!/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 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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="default", - help="pcm input device name. E.g., hw:0,0 or /dev/dsp") - parser.add_option("-O", "--audio-output", type="string", default="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.args, options.spec, - options.antenna, options.tx_gain, - options.audio_input) - self.rxpath = receive_path(options.args, options.spec, - options.antenna, 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, args, spec, antenna, 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=args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(spec): - self.u.set_subdev_spec(spec, 0) - - # Set the antenna - if(antenna): - self.u.set_antenna(antenna, 0) - - 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, args, spec, 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=args, - 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) - - # Set the subdevice spec - if(spec): - self.u.set_subdev_spec(spec, 0) - - # Set the antenna - 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 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/python/usrp_nbfm_rcv.py b/gr-uhd/examples/python/usrp_nbfm_rcv.py deleted file mode 100755 index be890f02d..000000000 --- a/gr-uhd/examples/python/usrp_nbfm_rcv.py +++ /dev/null @@ -1,380 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="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.args, options.spec, 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, args, spec, 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=args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(spec): - self.u.set_subdev_spec(spec, 0) - - # Set the antenna - if(antenna): - self.u.set_antenna(antenna, 0) - - 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) - - 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/python/usrp_spectrum_sense.py b/gr-uhd/examples/python/usrp_spectrum_sense.py deleted file mode 100755 index 32980adbf..000000000 --- a/gr-uhd/examples/python/usrp_spectrum_sense.py +++ /dev/null @@ -1,258 +0,0 @@ -#!/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 -import threading - -sys.stderr.write("Warning: this may have issues on some machines+Python version combinations to seg fault due to the callback in bin_statitics.\n\n") - -class ThreadClass(threading.Thread): - def run(self): - return - -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", "--args", type="string", default="", - help="UHD device device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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.args, - stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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__': - t = ThreadClass() - t.start() - - tb = my_top_block() - try: - tb.start() - main_loop(tb) - - except KeyboardInterrupt: - pass diff --git a/gr-uhd/examples/python/usrp_tv_rcv.py b/gr-uhd/examples/python/usrp_tv_rcv.py deleted file mode 100755 index b49a5ea71..000000000 --- a/gr-uhd/examples/python/usrp_tv_rcv.py +++ /dev/null @@ -1,443 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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/python/usrp_tv_rcv_nogui.py b/gr-uhd/examples/python/usrp_tv_rcv_nogui.py deleted file mode 100755 index cfb36222c..000000000 --- a/gr-uhd/examples/python/usrp_tv_rcv_nogui.py +++ /dev/null @@ -1,214 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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/python/usrp_wfm_rcv.py b/gr-uhd/examples/python/usrp_wfm_rcv.py deleted file mode 100755 index 8ec08260a..000000000 --- a/gr-uhd/examples/python/usrp_wfm_rcv.py +++ /dev/null @@ -1,286 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 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() - - 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/python/usrp_wfm_rcv2_nogui.py b/gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py deleted file mode 100755 index 83f1726c4..000000000 --- a/gr-uhd/examples/python/usrp_wfm_rcv2_nogui.py +++ /dev/null @@ -1,154 +0,0 @@ -#!/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 -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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default="A:0 A:0", - help="Subdevice of UHD device where appropriate") - 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=None, - help="set gain in dB (default is midpoint)") - parser.add_option("-O", "--audio-output", type="string", default="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 - stream_args = uhd.stream_args('fc32', channels=range(2)) - self.u = uhd.usrp_source(device_addr=options.args, stream_args=stream_args) - - # Set front end channel mapping - self.u.set_subdev_spec(options.spec) - - 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) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 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/python/usrp_wfm_rcv_fmdet.py b/gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py deleted file mode 100755 index 967a3bd8f..000000000 --- a/gr-uhd/examples/python/usrp_wfm_rcv_fmdet.py +++ /dev/null @@ -1,349 +0,0 @@ -#!/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 - -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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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("-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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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/python/usrp_wfm_rcv_nogui.py b/gr-uhd/examples/python/usrp_wfm_rcv_nogui.py deleted file mode 100755 index 9a7558dc7..000000000 --- a/gr-uhd/examples/python/usrp_wfm_rcv_nogui.py +++ /dev/null @@ -1,175 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 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() - - 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/python/usrp_wfm_rcv_pll.py b/gr-uhd/examples/python/usrp_wfm_rcv_pll.py deleted file mode 100755 index 874cab4a8..000000000 --- a/gr-uhd/examples/python/usrp_wfm_rcv_pll.py +++ /dev/null @@ -1,346 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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("-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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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/python/usrp_wfm_rcv_sca.py b/gr-uhd/examples/python/usrp_wfm_rcv_sca.py deleted file mode 100755 index 4c6aec23f..000000000 --- a/gr-uhd/examples/python/usrp_wfm_rcv_sca.py +++ /dev/null @@ -1,403 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - 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/python/usrp_wxapt_rcv.py b/gr-uhd/examples/python/usrp_wxapt_rcv.py deleted file mode 100755 index aaf297089..000000000 --- a/gr-uhd/examples/python/usrp_wxapt_rcv.py +++ /dev/null @@ -1,282 +0,0 @@ -#!/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", "--args", type="string", default="", - help="UHD device address args, [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - 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="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.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 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() - - 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 () |