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Diffstat (limited to 'gr-uhd/examples/python/fm_tx_2_daughterboards.py')
| -rwxr-xr-x | gr-uhd/examples/python/fm_tx_2_daughterboards.py | 212 |
1 files changed, 0 insertions, 212 deletions
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 |