--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright 2005,2006,2007,2009 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gru, 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
+import usrp_transmit_path2
+
+#import os
+#print os.getpid()
+#raw_input('Attach and press enter')
+
+class my_top_block(gr.top_block):
+ def __init__(self, modulator, options):
+ gr.top_block.__init__(self)
+
+ self.txpath = usrp_transmit_path2.usrp_transmit_path(modulator, options)
+
+ self.connect(self.txpath)
+
+# /////////////////////////////////////////////////////////////////////////////
+# main
+# /////////////////////////////////////////////////////////////////////////////
+
+def main():
+
+ def send_pkt(payload='', eof=False):
+ return tb.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)")
+ parser.add_option("","--from-file", default=None,
+ help="use file for packet contents")
+
+ usrp_transmit_path2.add_options(parser, expert_grp)
+
+ for mod in mods.values():
+ mod.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)
+
+ if options.from_file is not None:
+ source_file = open(options.from_file, 'r')
+
+ # build the graph
+ tb = my_top_block(mods[options.modulation], options)
+
+ r = gr.enable_realtime_scheduling()
+ if r != gr.RT_OK:
+ print "Warning: failed to enable realtime scheduling"
+
+ tb.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:
+ if options.from_file is None:
+ data = (pkt_size - 2) * chr(pktno & 0xff)
+ else:
+ data = source_file.read(pkt_size - 2)
+ if data == '':
+ break;
+
+ payload = struct.pack('!H', pktno & 0xffff) + data
+ send_pkt(payload)
+ n += len(payload)
+ sys.stderr.write('.')
+ if options.discontinuous and pktno % 5 == 4:
+ time.sleep(1)
+ pktno += 1
+
+ send_pkt(eof=True)
+
+ tb.wait() # wait for it to finish
+
+if __name__ == '__main__':
+ try:
+ main()
+ except KeyboardInterrupt:
+ pass
from gnuradio import gr
from gnuradio import usrp_options
import transmit_path
-from pick_bitrate2 import pick_tx_bitrate
+from pick_bitrate import pick_tx_bitrate
from gnuradio import eng_notation
def add_freq_option(parser):
--- /dev/null
+#
+# Copyright 2009 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
+from gnuradio import usrp_options
+import transmit_path
+from pick_bitrate2 import pick_tx_bitrate
+from gnuradio import eng_notation
+
+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")
+
+def add_options(parser, expert):
+ add_freq_option(parser)
+ usrp_options.add_tx_options(parser)
+ transmit_path.transmit_path.add_options(parser, expert)
+ expert.add_option("", "--tx-freq", type="eng_float", default=None,
+ help="set transmit frequency to FREQ [default=%default]", metavar="FREQ")
+ parser.add_option("-v", "--verbose", action="store_true", default=False)
+
+class usrp_transmit_path(gr.hier_block2):
+ def __init__(self, modulator_class, options):
+ '''
+ See below for what options should hold
+ '''
+ gr.hier_block2.__init__(self, "usrp_transmit_path",
+ gr.io_signature(0, 0, 0), # Input signature
+ gr.io_signature(0, 0, 0)) # Output signature
+ if options.tx_freq is None:
+ sys.stderr.write("-f FREQ or --freq FREQ or --tx-freq FREQ must be specified\n")
+ raise SystemExit
+
+ #setup usrp
+ self._modulator_class = modulator_class
+ self._setup_usrp_sink(options)
+
+ tx_path = transmit_path.transmit_path(modulator_class, options)
+ for attr in dir(tx_path): #forward the methods
+ if not attr.startswith('_') and not hasattr(self, attr):
+ setattr(self, attr, getattr(tx_path, attr))
+
+ #connect
+ self.connect(tx_path, self.u)
+
+ def _setup_usrp_sink(self, options):
+ """
+ Creates a USRP sink, determines the settings for best bitrate,
+ and attaches to the transmitter's subdevice.
+ """
+ self.u = usrp_options.create_usrp_sink(options)
+ dac_rate = self.u.dac_rate()
+ self.rs_rate = options.bitrate # Store requested bit rate
+
+ (self._bitrate, self._samples_per_symbol, self._interp) = \
+ pick_tx_bitrate(options.bitrate, self._modulator_class.bits_per_symbol(),
+ options.samples_per_symbol, options.interp,
+ dac_rate, self.u.get_interp_rates())
+
+ options.interp = self._interp
+ options.samples_per_symbol = self._samples_per_symbol
+ options.bitrate = self._bitrate
+
+ if options.verbose:
+ print 'USRP Sink:', self.u
+ print "Interpolation Rate: ", self._interp
+
+ self.u.set_interp(self._interp)
+ self.u.set_auto_tr(True)
+
+ if not self.u.set_center_freq(options.tx_freq):
+ print "Failed to set Rx frequency to %s" % (eng_notation.num_to_str(options.tx_freq))
+ raise ValueError, eng_notation.num_to_str(options.tx_freq)
projects / debian / gnuradio / commitdiff