diff options
| author | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-09-27 05:14:03 +0000 |
|---|---|---|
| committer | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-09-27 05:14:03 +0000 |
| commit | f1c41f807cb29472d0924149e39d6ec8ad90e6a2 (patch) | |
| tree | 47e42f8cdfc83aaa3b706e06862c3efa4ba16745 /gnuradio-examples/python/digital/benchmark_tx.py | |
| parent | 04bb51ec4f1539c51c861b7fcad2ca8047a872a3 (diff) | |
Merged changes from eb/digital-wip into trunk.
This includes:
* renaming gnuradio-examples/python/gmsk2 to gnuradio-examples/python/digital
* refactoring the digital data tx and rx test code into benchmark_tx
and benchmark_rx. These accept a -m <modulation> argument.
<modulation> can currently be selected from gmsk, dbpsk, dqpsk
* Two new AGC blocks: gr_agc2: separate attack and delay rates;
gr_feedforward_agc: FIR-ish compressor. Normalizes to peak envelope.
* Working DBPSK mod/demod (works fine)
* Working DQPSK mod/demod (works, but still needs more work)
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3662 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-examples/python/digital/benchmark_tx.py')
| -rwxr-xr-x | gnuradio-examples/python/digital/benchmark_tx.py | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/gnuradio-examples/python/digital/benchmark_tx.py b/gnuradio-examples/python/digital/benchmark_tx.py new file mode 100755 index 0000000000..55f309322e --- /dev/null +++ b/gnuradio-examples/python/digital/benchmark_tx.py @@ -0,0 +1,123 @@ +#!/usr/bin/env python +# +# Copyright 2005, 2006 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 2, or (at your option) +# any later version. +# +# GNU Radio is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with GNU Radio; see the file COPYING. If not, write to +# the Free Software Foundation, Inc., 51 Franklin Street, +# Boston, MA 02110-1301, USA. +# + +from gnuradio import gr, gru, modulation_utils +from gnuradio import usrp +from gnuradio import eng_notation +from gnuradio.eng_option import eng_option +from optparse import OptionParser + +import random, time, struct, sys + +# from current dir +from transmit_path import transmit_path +import fusb_options + +#import os +#print os.getpid() +#raw_input('Attach and press enter') + + +class my_graph(gr.flow_graph): + def __init__(self, modulator_class, options): + gr.flow_graph.__init__(self) + self.txpath = transmit_path(self, modulator_class, options) + + +# ///////////////////////////////////////////////////////////////////////////// +# main +# ///////////////////////////////////////////////////////////////////////////// + +def main(): + + def send_pkt(payload='', eof=False): + return fg.txpath.send_pkt(payload, eof) + + def rx_callback(ok, payload): + print "ok = %r, payload = '%s'" % (ok, payload) + + mods = modulation_utils.type_1_mods() + + parser = OptionParser(option_class=eng_option, conflict_handler="resolve") + expert_grp = parser.add_option_group("Expert") + + parser.add_option("-m", "--modulation", type="choice", choices=mods.keys(), + default='gmsk', + help="Select modulation from: %s [default=%%default]" + % (', '.join(mods.keys()),)) + + parser.add_option("-s", "--size", type="eng_float", default=1500, + help="set packet size [default=%default]") + parser.add_option("-M", "--megabytes", type="eng_float", default=1.0, + help="set megabytes to transmit [default=%default]") + parser.add_option("","--discontinuous", action="store_true", default=False, + help="enable discontinous transmission (bursts of 5 packets)") + + transmit_path.add_options(parser, expert_grp) + + for mod in mods.values(): + mod.add_options(expert_grp) + + fusb_options.add_options(expert_grp) + (options, args) = parser.parse_args () + + if len(args) != 0: + parser.print_help() + sys.exit(1) + + if options.tx_freq is None: + sys.stderr.write("You must specify -f FREQ or --freq FREQ\n") + parser.print_help(sys.stderr) + sys.exit(1) + + # build the graph + fg = my_graph(mods[options.modulation], options) + + r = gr.enable_realtime_scheduling() + if r != gr.RT_OK: + print "Warning: failed to enable realtime scheduling" + + fg.start() # start flow graph + + + # generate and send packets + nbytes = int(1e6 * options.megabytes) + n = 0 + pktno = 0 + pkt_size = int(options.size) + + while n < nbytes: + send_pkt(struct.pack('!H', pktno) + (pkt_size - 2) * chr(pktno & 0xff)) + n += pkt_size + sys.stderr.write('.') + if options.discontinuous and pktno % 5 == 4: + time.sleep(1) + pktno += 1 + + send_pkt(eof=True) + fg.wait() # wait for it to finish + +if __name__ == '__main__': + try: + main() + except KeyboardInterrupt: + pass |