diff options
Diffstat (limited to 'gr-msdd6000/src/python-examples/ofdm/benchmark_ofdm_rx.py')
| -rwxr-xr-x | gr-msdd6000/src/python-examples/ofdm/benchmark_ofdm_rx.py | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/gr-msdd6000/src/python-examples/ofdm/benchmark_ofdm_rx.py b/gr-msdd6000/src/python-examples/ofdm/benchmark_ofdm_rx.py deleted file mode 100755 index deb82e111..000000000 --- a/gr-msdd6000/src/python-examples/ofdm/benchmark_ofdm_rx.py +++ /dev/null @@ -1,184 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2006, 2007 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio is free software; you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation; either version 3, or (at your option) -# any later version. -# -# GNU Radio is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with GNU Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -from gnuradio import gr, blks2 -from gnuradio import msdd -from gnuradio import eng_notation -from gnuradio.eng_option import eng_option -from optparse import OptionParser - -import struct, sys - -# from current dir -from receive_path import receive_path - -class my_top_block(gr.top_block): - def __init__(self, address, callback, options): - gr.top_block.__init__(self) - - self._address = address - self._rx_freq = options.rx_freq # receiver's center frequency - self._rx_gain = options.rx_gain # receiver's gain - self._decim = options.decim # Decimating rate for the USRP (prelim) - - if self._rx_freq is None: - sys.stderr.write("-f FREQ or --freq FREQ or --rx-freq FREQ must be specified\n") - raise SystemExit - - # Set up USRP source - self._setup_source() - - #taps = gr.firdes.low_pass(1, 1, 0.4, 0.2) - #self.resample = gr.rational_resampler_base_ccf(5, 8, taps) - self.resample = blks2.rational_resampler_ccf(5, 8) - - # Set up receive path - self.rxpath = receive_path(callback, options) - - self.connect(self.src, self.resample, self.rxpath) - #self.connect(self.src, gr.file_sink(gr.sizeof_gr_complex, "receive.dat")) - #self.connect(self.resample, gr.file_sink(gr.sizeof_gr_complex, "resampled.dat")) - - def _setup_source(self): - # build graph - self._port = 10001 - self.src = msdd.source_c(0, 1, self._address, self._port) - self.src.set_decim_rate(self._decim) - self.src.set_desired_packet_size(0, 1460) - - self.set_gain(self._rx_gain) - self.set_freq(self._rx_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.src.set_rx_freq(0, target_freq) - if r: - return True - return False - - def set_gain(self, gain): - """ - Sets the analog gain in the USRP - """ - return self.src.set_pga(0, gain) - - def decim(self): - return self._decim - - def add_options(normal, expert): - """ - Adds usrp-specific options to the Options Parser - """ - add_freq_option(normal) - normal.add_option("", "--rx-gain", type="eng_float", default=32, metavar="GAIN", - help="set receiver gain in dB [default=%default].") - normal.add_option("-v", "--verbose", action="store_true", default=False) - - expert.add_option("", "--rx-freq", type="eng_float", default=None, - help="set Rx frequency to FREQ [default=%default]", metavar="FREQ") - expert.add_option("-d", "--decim", type="intx", default=128, - help="set fpga decimation rate to DECIM [default=%default]") - expert.add_option("", "--snr", type="eng_float", default=30, - help="set the SNR of the channel in dB [default=%default]") - - # Make a static method to call before instantiation - add_options = staticmethod(add_options) - -def add_freq_option(parser): - """ - Hackery that has the -f / --freq option set both tx_freq and rx_freq - """ - def freq_callback(option, opt_str, value, parser): - parser.values.rx_freq = value - parser.values.tx_freq = value - - if not parser.has_option('--freq'): - parser.add_option('-f', '--freq', type="eng_float", - action="callback", callback=freq_callback, - help="set Tx and/or Rx frequency to FREQ [default=%default]", - metavar="FREQ") - -# ///////////////////////////////////////////////////////////////////////////// -# main -# ///////////////////////////////////////////////////////////////////////////// - -def main(): - - global n_rcvd, n_right - - n_rcvd = 0 - n_right = 0 - - def rx_callback(ok, payload): - global n_rcvd, n_right - n_rcvd += 1 - (pktno,) = struct.unpack('!H', payload[0:2]) - if ok: - n_right += 1 - print "ok: %r \t pktno: %d \t n_rcvd: %d \t n_right: %d" % (ok, pktno, n_rcvd, n_right) - - if 0: - printlst = list() - for x in payload[2:]: - t = hex(ord(x)).replace('0x', '') - if(len(t) == 1): - t = '0' + t - printlst.append(t) - printable = ''.join(printlst) - - print printable - print "\n" - - usage = "usage: %prog [options] host" - parser = OptionParser(usage=usage, option_class=eng_option, conflict_handler="resolve") - expert_grp = parser.add_option_group("Expert") - parser.add_option("","--discontinuous", action="store_true", default=False, - help="enable discontinuous") - - my_top_block.add_options(parser, expert_grp) - receive_path.add_options(parser, expert_grp) - blks2.ofdm_mod.add_options(parser, expert_grp) - blks2.ofdm_demod.add_options(parser, expert_grp) - - (options, args) = parser.parse_args () - address = args[0] - - # build the graph - tb = my_top_block(address, rx_callback, options) - - #r = gr.enable_realtime_scheduling() - #if r != gr.RT_OK: - # print "Warning: failed to enable realtime scheduling" - - tb.start() # start flow graph - tb.wait() # wait for it to finish - -if __name__ == '__main__': - try: - main() - except KeyboardInterrupt: - pass |