3 # Copyright 2005,2006,2007 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 3, 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
34 from receive_path import receive_path
39 #raw_input('Attach and press enter: ')
41 class my_top_block(gr.top_block):
42 def __init__(self, demodulator, rx_callback, options):
43 gr.top_block.__init__(self)
44 self.rxpath = receive_path(demodulator, rx_callback, options)
45 self.connect(self.rxpath)
47 # /////////////////////////////////////////////////////////////////////////////
49 # /////////////////////////////////////////////////////////////////////////////
51 global n_rcvd, n_right
54 global n_rcvd, n_right
59 def rx_callback(ok, payload):
60 global n_rcvd, n_right
61 (pktno,) = struct.unpack('!H', payload[0:2])
66 print "ok = %5s pktno = %4d n_rcvd = %4d n_right = %4d" % (
67 ok, pktno, n_rcvd, n_right)
70 demods = modulation_utils.type_1_demods()
72 # Create Options Parser:
73 parser = OptionParser (option_class=eng_option, conflict_handler="resolve")
74 expert_grp = parser.add_option_group("Expert")
76 parser.add_option("-m", "--modulation", type="choice", choices=demods.keys(),
78 help="Select modulation from: %s [default=%%default]"
79 % (', '.join(demods.keys()),))
81 receive_path.add_options(parser, expert_grp)
83 for mod in demods.values():
84 mod.add_options(expert_grp)
86 fusb_options.add_options(expert_grp)
87 (options, args) = parser.parse_args ()
90 parser.print_help(sys.stderr)
93 if options.rx_freq is None:
94 sys.stderr.write("You must specify -f FREQ or --freq FREQ\n")
95 parser.print_help(sys.stderr)
100 tb = my_top_block(demods[options.modulation], rx_callback, options)
102 r = gr.enable_realtime_scheduling()
104 print "Warning: Failed to enable realtime scheduling."
106 tb.start() # start flow graph
107 tb.wait() # wait for it to finish
109 if __name__ == '__main__':
112 except KeyboardInterrupt: