3
# Copyright 2005,2006,2007,2009 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
import usrp_receive_path
38
#raw_input('Attach and press enter: ')
40
class my_top_block(gr.top_block):
41
def __init__(self, demodulator, rx_callback, options):
42
gr.top_block.__init__(self)
45
self.rxpath = usrp_receive_path.usrp_receive_path(demodulator, rx_callback, options)
47
self.connect(self.rxpath)
49
# /////////////////////////////////////////////////////////////////////////////
51
# /////////////////////////////////////////////////////////////////////////////
53
global n_rcvd, n_right
56
global n_rcvd, n_right
61
def rx_callback(ok, payload):
62
global n_rcvd, n_right
63
(pktno,) = struct.unpack('!H', payload[0:2])
68
print "ok = %5s pktno = %4d n_rcvd = %4d n_right = %4d" % (
69
ok, pktno, n_rcvd, n_right)
72
demods = modulation_utils.type_1_demods()
74
# Create Options Parser:
75
parser = OptionParser (option_class=eng_option, conflict_handler="resolve")
76
expert_grp = parser.add_option_group("Expert")
78
parser.add_option("-m", "--modulation", type="choice", choices=demods.keys(),
80
help="Select modulation from: %s [default=%%default]"
81
% (', '.join(demods.keys()),))
83
usrp_receive_path.add_options(parser, expert_grp)
85
for mod in demods.values():
86
mod.add_options(expert_grp)
88
(options, args) = parser.parse_args ()
91
parser.print_help(sys.stderr)
94
if options.rx_freq is None:
95
sys.stderr.write("You must specify -f FREQ or --freq FREQ\n")
96
parser.print_help(sys.stderr)
101
tb = my_top_block(demods[options.modulation], rx_callback, options)
103
r = gr.enable_realtime_scheduling()
105
print "Warning: Failed to enable realtime scheduling."
107
tb.start() # start flow graph
108
tb.wait() # wait for it to finish
110
if __name__ == '__main__':
113
except KeyboardInterrupt: