def main():
gr.enable_realtime_scheduling()
parser = OptionParser(option_class=eng_option, conflict_handler="resolve")
(options, args) = parser.parse_args ()
d = {'verbose': True, 'samples_per_symbol': 2, 'usrpx': None, 'excess_bw': 0.34999999999999998, 'fusb_block_size': 0, 'log': False, 'costas_alpha': 0.14999999999999999, 'bitrate': 100000.0, 'decim': DECIM, 'omega_relative_limit': 0.0050000000000000001, 'fusb_nblocks': 0, 'which': 0, 'rx_subdev_spec': None, 'freq_error': 0.0, 'lo_offset': None, 'modulation': 'gmsk', 'gain_mu': None, 'interface': 'eth0', 'freq': None, 'rx_freq': 2.475e9, 'rx_gain': RXGAIN, 'tx_freq': 2440000000.0, 'mu': 0.5, 'mac_addr': '', 'show_rx_gain_range': True, 'gray_code': True, 'tx_subdev_spec' : None, 'tx_gain' : None, 'show_tx_gain_range': False}
for i, j in d.items():
setattr(options, i, j)
u = usrp_options.create_usrp_source(options)
adc_rate = u.adc_rate()
if options.verbose:
print 'USRP Source:', u
(_bitrate, _samples_per_symbol, _decim) = \
pick_rx_bitrate(options.bitrate, 2, \
options.samples_per_symbol, options.decim, adc_rate, \
u.get_decim_rates())
u.set_decim(_decim)
if not u.set_center_freq(options.rx_freq):
print "Failed to set Rx frequency to %s" % (eng_notation.num_to_str(options.rx_freq))
raise ValueError, eng_notation.num_to_str(options.rx_freq)
tb = gr.top_block()
dst = gr.vector_sink_s ()
dump = gr.file_sink(gr.sizeof_gr_complex, 'packet.dat')
tb.connect(u, dump)
tb.run()
def _setup_usrp_source(self, options):
self.u = usrp_options.create_usrp_source(options)
adc_rate = self.u.adc_rate()
self.u.set_decim(self._decim)
(self._bitrate, self._samples_per_symbol, self._decim) = \
pick_rx_bitrate(self._bitrate, self._demod_class.bits_per_symbol(), \
self._samples_per_symbol, self._decim, adc_rate, \
self.u.get_decim_rates())
self.u.set_decim(self._decim)
self.set_auto_tr(True) # enable Auto Transmit/Receive switching
def _setup_usrp_source(self, options):
self.u = usrp_options.create_usrp_source(options)
adc_rate = self.u.adc_rate()
if options.verbose:
print 'USRP Source:', self.u
(self._bitrate, self._samples_per_symbol, self._decim) = \
pick_rx_bitrate(options.bitrate, self._demod_class.bits_per_symbol(), \
options.samples_per_symbol, options.decim, adc_rate, \
self.u.get_decim_rates())
self.u.set_decim(self._decim)
if not self.u.set_center_freq(options.rx_freq):
print "Failed to set Rx frequency to %s" % (eng_notation.num_to_str(options.rx_freq))
raise ValueError, eng_notation.num_to_str(options.rx_freq)
def _setup_usrp_source(self, options):
self.u = usrp_options.create_usrp_source(options)
adc_rate = self.u.adc_rate()
if options.verbose:
print 'USRP Source:', self.u
(self._bitrate, self._samples_per_symbol, self._decim) = \
pick_rx_bitrate(options.bitrate, self._demod_class.bits_per_symbol(), \
options.samples_per_symbol, options.decim, adc_rate, \
self.u.get_decim_rates())
self.u.set_decim(self._decim)
if not self.u.set_center_freq(options.rx_freq):
print "Failed to set Rx frequency to %s" % (
eng_notation.num_to_str(options.rx_freq))
raise ValueError, eng_notation.num_to_str(options.rx_freq)
def _setup_usrp_source(self):
self.u = usrp.source_c (fusb_block_size=self._fusb_block_size,
fusb_nblocks=self._fusb_nblocks)
adc_rate = self.u.adc_rate()
# derive values of bitrate, samples_per_symbol, and decim from desired info
(self._bitrate, self._samples_per_symbol, self._decim) = \
pick_rx_bitrate(self._bitrate, self._demod_class.bits_per_symbol(), \
self._samples_per_symbol, self._decim, adc_rate)
self.u.set_decim_rate(self._decim)
# determine the daughterboard subdevice we're using
if self._rx_subdev_spec is None:
self._rx_subdev_spec = usrp.pick_rx_subdevice(self.u)
self.subdev = usrp.selected_subdev(self.u, self._rx_subdev_spec)
self.u.set_mux(usrp.determine_rx_mux_value(self.u, self._rx_subdev_spec))
def _setup_usrp_source(self):
self.u = usrp.source_c(self._which,
fusb_block_size=self._fusb_block_size,
fusb_nblocks=self._fusb_nblocks)
adc_rate = self.u.adc_rate()
# derive values of bitrate, samples_per_symbol, and decim from desired info
(self._bitrate, self._samples_per_symbol, self._decim) = \
pick_rx_bitrate(self._bitrate, self._demod_class.bits_per_symbol(), \
self._samples_per_symbol, self._decim, adc_rate)
self.u.set_decim_rate(self._decim)
# determine the daughterboard subdevice we're using
if self._rx_subdev_spec is None:
self._rx_subdev_spec = usrp.pick_rx_subdevice(self.u)
self.subdev = usrp.selected_subdev(self.u, self._rx_subdev_spec)
self.u.set_mux(
usrp.determine_rx_mux_value(self.u, self._rx_subdev_spec))