3 # Copyright 2005, 2006 Free Software Foundation, Inc.
5 # This file is part of GNU Radio
7 # GNU Radio is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2, or (at your option)
12 # GNU Radio is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with GNU Radio; see the file COPYING. If not, write to
19 # the Free Software Foundation, Inc., 51 Franklin Street,
20 # Boston, MA 02110-1301, USA.
23 from gnuradio import gr, gru, modulation_utils
24 from gnuradio import usrp
25 from gnuradio import eng_notation
26 from gnuradio.eng_option import eng_option
27 from optparse import OptionParser
29 import random, time, struct, sys
32 from transmit_path import transmit_path
37 #raw_input('Attach and press enter')
39 class my_graph(gr.hier_block2):
40 def __init__(self, mod_class, options):
41 gr.hier_block2.__init__(self, "my_graph",
42 gr.io_signature(0,0,0), # Input signature
43 gr.io_signature(0,0,0)) # Output signature
44 self.txpath = transmit_path(mod_class, options)
45 self.define_component("txpath", self.txpath)
48 # /////////////////////////////////////////////////////////////////////////////
50 # /////////////////////////////////////////////////////////////////////////////
54 def send_pkt(payload='', eof=False):
55 return top_block.txpath.send_pkt(payload, eof)
57 def rx_callback(ok, payload):
58 print "ok = %r, payload = '%s'" % (ok, payload)
60 mods = modulation_utils.type_1_mods()
62 parser = OptionParser(option_class=eng_option, conflict_handler="resolve")
63 expert_grp = parser.add_option_group("Expert")
65 parser.add_option("-m", "--modulation", type="choice", choices=mods.keys(),
67 help="Select modulation from: %s [default=%%default]"
68 % (', '.join(mods.keys()),))
70 parser.add_option("-s", "--size", type="eng_float", default=1500,
71 help="set packet size [default=%default]")
72 parser.add_option("-M", "--megabytes", type="eng_float", default=1.0,
73 help="set megabytes to transmit [default=%default]")
74 parser.add_option("","--discontinuous", action="store_true", default=False,
75 help="enable discontinous transmission (bursts of 5 packets)")
77 transmit_path.add_options(parser, expert_grp)
79 for mod in mods.values():
80 mod.add_options(expert_grp)
82 fusb_options.add_options(expert_grp)
83 (options, args) = parser.parse_args ()
89 if options.tx_freq is None:
90 sys.stderr.write("You must specify -f FREQ or --freq FREQ\n")
91 parser.print_help(sys.stderr)
94 r = gr.enable_realtime_scheduling()
96 print "Warning: failed to enable realtime scheduling"
98 # Create an instance of a hierarchical block
99 top_block = my_graph(mods[options.modulation], options)
101 # Create an instance of a runtime, passing it the top block
102 runtime = gr.runtime(top_block)
105 # generate and send packets
106 nbytes = int(1e6 * options.megabytes)
109 pkt_size = int(options.size)
112 send_pkt(struct.pack('!H', pktno) + (pkt_size - 2) * chr(pktno & 0xff))
114 sys.stderr.write('.')
115 if options.discontinuous and pktno % 5 == 4:
122 if __name__ == '__main__':
125 except KeyboardInterrupt: