def __init__(self, options, rx_callback):
gr.flow_graph.__init__(self)
# ----------------------------------------------------------------
self.data_rate = 38400
self.samples_per_symbol = 8
self.usrp_decim = int(64e6 / self.samples_per_symbol / self.data_rate)
self.fs = self.data_rate * self.samples_per_symbol
payload_size = 128 # bytes
print "data_rate = ", eng_notation.num_to_str(self.data_rate)
print "samples_per_symbol = ", self.samples_per_symbol
print "usrp_decim = ", self.usrp_decim
print "fs = ", eng_notation.num_to_str(self.fs)
max_deviation = self.data_rate / 4
u = usrp.source_c(0, self.usrp_decim)
if options.rx_subdev_spec is None:
options.rx_subdev_spec = pick_subdevice(u)
u.set_mux(usrp.determine_rx_mux_value(u, options.rx_subdev_spec))
subdev = usrp.selected_subdev(u, options.rx_subdev_spec)
print "Using RX d'board %s" % (subdev.side_and_name(), )
#u.set_rx_freq (0, -options.cordic_freq)
u.tune(0, subdev, options.cordic_freq_rx)
u.set_pga(0, options.gain)
u.set_pga(1, options.gain)
filter_taps = gr.firdes.low_pass(
1, # gain
self.fs, # sampling rate
self.data_rate / 2 * 1.1, # cutoff
self.data_rate, # trans width
gr.firdes.WIN_HANN)
print "len = ", len(filter_taps)
#filter = gr.fir_filter_ccf (1, filter_taps)
# receiver
gain_mu = 0.002 * self.samples_per_symbol
self.packet_receiver = cc1k_sos_pkt.cc1k_demod_pkts(
self,
callback=rx_callback,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
p_size=payload_size,
threshold=-1)
#filesource = gr.file_source(gr.sizeof_gr_complex, 'tx_test.dat')
self.connect(u, self.packet_receiver)
#self.filesink = gr.file_sink(gr.sizeof_gr_complex, 'rx_test.dat')
#self.connect(u, self.filesink)
if 0 and not (options.no_gui):
fft_input = fftsink.fft_sink_c(self,
panel,
title="Input",
fft_size=512,
sample_rate=self.fs)
self.connect(u, fft_input)
vbox.Add(fft_input.win, 1, wx.EXPAND)
def __init__(self):
gr.flow_graph.__init__(self)
parser = OptionParser(option_class=eng_option)
parser.add_option(
"-R",
"--rx-subdev-spec",
type="subdev",
default=None,
help=
"select USRP Rx side A or B (default=first one with a daughterboard)"
)
parser.add_option("-c",
"--cordic-freq1",
type="eng_float",
default=434845200,
help="set rx cordic frequency for channel 1 to FREQ",
metavar="FREQ")
parser.add_option("-d",
"--cordic-freq2",
type="eng_float",
default=434318512,
help="set rx cordic frequency for channel 2 to FREQ",
metavar="FREQ")
parser.add_option("-g",
"--gain",
type="eng_float",
default=0,
help="set Rx PGA gain in dB [0,20]")
(options, args) = parser.parse_args()
print "cordic_freq1 = %s" % (eng_notation.num_to_str(
options.cordic_freq1))
print "cordic_freq2 = %s" % (eng_notation.num_to_str(
options.cordic_freq2))
# ----------------------------------------------------------------
self.data_rate = 38400
self.samples_per_symbol = 8
#we sample a band of 4 MHz.
self.usrp_decim = int(64e6 / 4e6)
self.decimation = self.usrp_decim / self.samples_per_symbol / self.data_rate
self.fs = self.data_rate * self.samples_per_symbol
payload_size = 128 # bytes
print "data_rate = ", eng_notation.num_to_str(self.data_rate)
print "samples_per_symbol = ", self.samples_per_symbol
print "usrp_decim = ", self.usrp_decim
print "decimation = ", self.decimation
print "fs = ", eng_notation.num_to_str(self.fs)
if options.cordic_freq1 < options.cordic_freq2:
self.usrp_freq = options.cordic_freq1
self.freq_diff = options.cordic_freq1 - options.cordic_freq2
else:
self.usrp_freq = options.cordic_freq2
self.freq_diff = options.cordic_freq2 - options.cordic_freq1
print "tune USRP to = ", self.usrp_freq
u = usrp.source_c(0, self.usrp_decim)
if options.rx_subdev_spec is None:
options.rx_subdev_spec = pick_subdevice(u)
u.set_mux(usrp.determine_rx_mux_value(u, options.rx_subdev_spec))
subdev = usrp.selected_subdev(u, options.rx_subdev_spec)
print "Using RX d'board %s" % (subdev.side_and_name(), )
#u.set_rx_freq (0, -options.cordic_freq)
u.tune(0, subdev, self.usrp_freq)
u.set_pga(0, options.gain)
u.set_pga(1, options.gain)
# Create filter to get actual channels we want
chan_coeffs = gr.firdes.low_pass(
1.0, # gain
4e6, # sampling rate
150e3, # low pass cutoff freq
50e3, # width of trans. band
gr.firdes.WIN_HANN) # filter type
print "len(rx_chan_coeffs) =", len(chan_coeffs)
# Decimating Channel filter with frequency translation
# complex in and out, float taps
self.ddc1 = gr.freq_xlating_fir_filter_ccf(
13, # decimation rate
chan_coeffs, # taps
0, # frequency translation amount
4e6) # input sample rate
self.ddc2 = gr.freq_xlating_fir_filter_ccf(
13, # decimation rate
chan_coeffs, # taps
self.freq_diff, # frequency translation amount
4e6) # input sample rate
# receiver
gain_mu = 0.002 * self.samples_per_symbol
self.packet_receiver1 = cc1k_sos_pkt.cc1k_demod_pkts(
self,
callback=self.rx_callback1,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
p_size=payload_size,
threshold=-1)
self.packet_receiver2 = cc1k_sos_pkt.cc1k_demod_pkts(
self,
callback=self.rx_callback2,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
p_size=payload_size,
threshold=-1)
u = gr.file_source(gr.sizeof_gr_complex, 'tx_test.dat')
self.connect(u, self.ddc1, self.packet_receiver1)
self.connect(u, self.ddc2, self.packet_receiver2)
self.filesink = gr.file_sink(gr.sizeof_gr_complex, 'rx_test.dat')
#self.connect(u, self.filesink)
if 0 and not (options.no_gui):
fft_input = fftsink.fft_sink_c(self,
panel,
title="Input",
fft_size=512,
sample_rate=self.fs)
self.connect(u, fft_input)
vbox.Add(fft_input.win, 1, wx.EXPAND)
def __init__(self):
gr.flow_graph.__init__ (self)
parser = OptionParser (option_class=eng_option)
parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
help="select USRP Rx side A or B (default=first one with a daughterboard)")
parser.add_option ("-c", "--cordic-freq", type="eng_float", default=434845200,
help="set Tx cordic frequency to FREQ", metavar="FREQ")
parser.add_option ("-r", "--data-rate", type="eng_float", default=38400)
parser.add_option ("-f", "--filename", type="string",
default="rx.dat", help="write data to FILENAME")
parser.add_option ("-g", "--gain", type="eng_float", default=0,
help="set Rx PGA gain in dB [0,20]")
parser.add_option ("-N", "--no-gui", action="store_true", default=False)
(options, args) = parser.parse_args ()
print "cordic_freq = %s" % (eng_notation.num_to_str (options.cordic_freq))
# ----------------------------------------------------------------
self.data_rate = options.data_rate
self.samples_per_symbol = 8
self.usrp_decim = int (64e6 / self.samples_per_symbol / self.data_rate)
self.fs = self.data_rate * self.samples_per_symbol
payload_size = 128 # bytes
print "data_rate = ", eng_notation.num_to_str(self.data_rate)
print "samples_per_symbol = ", self.samples_per_symbol
print "usrp_decim = ", self.usrp_decim
print "fs = ", eng_notation.num_to_str(self.fs)
max_deviation = self.data_rate / 4
u = usrp.source_c (0, self.usrp_decim)
if options.rx_subdev_spec is None:
options.rx_subdev_spec = pick_subdevice(u)
u.set_mux(usrp.determine_rx_mux_value(u, options.rx_subdev_spec))
subdev = usrp.selected_subdev(u, options.rx_subdev_spec)
print "Using RX d'board %s" % (subdev.side_and_name(),)
#u.set_rx_freq (0, -options.cordic_freq)
u.tune(0, subdev, options.cordic_freq)
u.set_pga(0, options.gain)
u.set_pga(1, options.gain)
filter_taps = gr.firdes.low_pass (1, # gain
self.fs, # sampling rate
self.data_rate / 2 * 1.1, # cutoff
self.data_rate, # trans width
gr.firdes.WIN_HANN)
print "len = ", len (filter_taps)
#filter = gr.fir_filter_ccf (1, filter_taps)
# receiver
gain_mu = 0.002*self.samples_per_symbol
self.packet_receiver = cc1k_sos_pkt.cc1k_demod_pkts(self,
callback=self.rx_callback,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
p_size=payload_size,
threshold=-1)
self.connect(u, self.packet_receiver)
self.filesink = gr.file_sink(gr.sizeof_gr_complex, 'rx_test.dat')
#self.connect(u, self.filesink)
if 0 and not(options.no_gui):
fft_input = fftsink.fft_sink_c (self, panel, title="Input", fft_size=512, sample_rate=self.fs)
self.connect (u, fft_input)
vbox.Add (fft_input.win, 1, wx.EXPAND)
def __init__(self, rx_callback_cc2420, rx_callback_cc1k):
gr.flow_graph.__init__(self)
cc2420_cordic_freq = 2475000000
cc2420_data_rate = 2000000
cc1k_cordic_freq = 434845200
cc1k_data_rate = 38400
cc1k_sps = 8
payload_size = 128
print "cc2420_cordic_freq = %s" % (eng_notation.num_to_str (cc2420_cordic_freq))
print "cc1k_cordic_freq = %s" % (eng_notation.num_to_str (cc1k_cordic_freq))
# ----------------------------------------------------------------
self.data_rate = cc2420_data_rate
self.samples_per_symbol = 2
self.usrp_decim = int (64e6 / self.samples_per_symbol / self.data_rate)
self.fs = self.data_rate * self.samples_per_symbol
payload_size = 128 # bytes
print "usrp_decim = ", self.usrp_decim
print "fs = ", eng_notation.num_to_str(self.fs)
u = usrp.source_c (0, nchan=2)
u.set_decim_rate(self.usrp_decim)
self.subdev = (u.db[0][0], u.db[1][0])
print "Using RX d'board %s" % (self.subdev[0].side_and_name(),)
print "Using RX d'board %s" % (self.subdev[1].side_and_name(),)
u.set_mux(0x2301)
width = 8
shift = 8
format = u.make_format(width, shift)
r = u.set_format(format)
#this is the cc2420 code
u.tune(self.subdev[0]._which, self.subdev[0], cc2420_cordic_freq)
u.tune(self.subdev[1]._which, self.subdev[1], cc1k_cordic_freq)
u.set_pga(0, 0)
u.set_pga(1, 0)
self.u = u
# deinterleave two channels from FPGA
di = gr.deinterleave(gr.sizeof_gr_complex)
# wire up the head of the chain
self.connect(self.u, di)
#self.u = gr.file_source(gr.sizeof_gr_complex, 'rx_test.dat')
# CC2420 receiver
self.packet_receiver = ieee802_15_4_pkt.ieee802_15_4_demod_pkts(self,
callback=rx_callback_cc2420,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
threshold=-1)
self.squelch = gr.pwr_squelch_cc(50, 1, 0, True)
self.connect((di,0), self.squelch, self.packet_receiver)
# CC1K receiver
gain_mu = 0.002*self.samples_per_symbol
self.packet_receiver_cc1k = cc1k_sos_pkt.cc1k_demod_pkts(self,
callback=rx_callback_cc1k,
sps=cc1k_sps,
symbol_rate=cc1k_data_rate,
p_size=payload_size,
threshold=-1)
#self.squelch2 = gr.pwr_squelch_cc(50, 1, 0, True)
keep = gr.keep_one_in_n(gr.sizeof_gr_complex, 13)
#self.connect((di, 1), keep, self.squelch2, self.packet_receiver_cc1k)
self.connect((di, 1), keep, self.packet_receiver_cc1k)
def __init__(self, rx_callback_cc2420, rx_callback_cc1k):
gr.flow_graph.__init__(self)
cc2420_cordic_freq = 2475000000
cc2420_data_rate = 2000000
cc1k_cordic_freq = 434845200
cc1k_data_rate = 38400
cc1k_sps = 8
payload_size = 128
print "cc2420_cordic_freq = %s" % (
eng_notation.num_to_str(cc2420_cordic_freq))
print "cc1k_cordic_freq = %s" % (
eng_notation.num_to_str(cc1k_cordic_freq))
# ----------------------------------------------------------------
self.data_rate = cc2420_data_rate
self.samples_per_symbol = 2
self.usrp_decim = int(64e6 / self.samples_per_symbol / self.data_rate)
self.fs = self.data_rate * self.samples_per_symbol
payload_size = 128 # bytes
print "usrp_decim = ", self.usrp_decim
print "fs = ", eng_notation.num_to_str(self.fs)
u = usrp.source_c(0, nchan=2)
u.set_decim_rate(self.usrp_decim)
self.subdev = (u.db[0][0], u.db[1][0])
print "Using RX d'board %s" % (self.subdev[0].side_and_name(), )
print "Using RX d'board %s" % (self.subdev[1].side_and_name(), )
u.set_mux(0x2301)
width = 8
shift = 8
format = u.make_format(width, shift)
r = u.set_format(format)
#this is the cc2420 code
u.tune(self.subdev[0]._which, self.subdev[0], cc2420_cordic_freq)
u.tune(self.subdev[1]._which, self.subdev[1], cc1k_cordic_freq)
u.set_pga(0, 0)
u.set_pga(1, 0)
self.u = u
# deinterleave two channels from FPGA
di = gr.deinterleave(gr.sizeof_gr_complex)
# wire up the head of the chain
self.connect(self.u, di)
#self.u = gr.file_source(gr.sizeof_gr_complex, 'rx_test.dat')
# CC2420 receiver
self.packet_receiver = ieee802_15_4_pkt.ieee802_15_4_demod_pkts(
self,
callback=rx_callback_cc2420,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
threshold=-1)
self.squelch = gr.pwr_squelch_cc(50, 1, 0, True)
self.connect((di, 0), self.squelch, self.packet_receiver)
# CC1K receiver
gain_mu = 0.002 * self.samples_per_symbol
self.packet_receiver_cc1k = cc1k_sos_pkt.cc1k_demod_pkts(
self,
callback=rx_callback_cc1k,
sps=cc1k_sps,
symbol_rate=cc1k_data_rate,
p_size=payload_size,
threshold=-1)
#self.squelch2 = gr.pwr_squelch_cc(50, 1, 0, True)
keep = gr.keep_one_in_n(gr.sizeof_gr_complex, 13)
#self.connect((di, 1), keep, self.squelch2, self.packet_receiver_cc1k)
self.connect((di, 1), keep, self.packet_receiver_cc1k)
def __init__(self):
gr.flow_graph.__init__ (self)
parser = OptionParser (option_class=eng_option)
parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
help="select USRP Rx side A or B (default=first one with a daughterboard)")
parser.add_option ("-c", "--cordic-freq1", type="eng_float", default=434845200,
help="set rx cordic frequency for channel 1 to FREQ", metavar="FREQ")
parser.add_option ("-d", "--cordic-freq2", type="eng_float", default=434318512,
help="set rx cordic frequency for channel 2 to FREQ", metavar="FREQ")
parser.add_option ("-g", "--gain", type="eng_float", default=0,
help="set Rx PGA gain in dB [0,20]")
(options, args) = parser.parse_args ()
print "cordic_freq1 = %s" % (eng_notation.num_to_str (options.cordic_freq1))
print "cordic_freq2 = %s" % (eng_notation.num_to_str (options.cordic_freq2))
# ----------------------------------------------------------------
self.data_rate = 38400
self.samples_per_symbol = 8
#we sample a band of 4 MHz.
self.usrp_decim = int (64e6 / 4e6)
self.decimation = self.usrp_decim / self.samples_per_symbol / self.data_rate
self.fs = self.data_rate * self.samples_per_symbol
payload_size = 128 # bytes
print "data_rate = ", eng_notation.num_to_str(self.data_rate)
print "samples_per_symbol = ", self.samples_per_symbol
print "usrp_decim = ", self.usrp_decim
print "decimation = ", self.decimation
print "fs = ", eng_notation.num_to_str(self.fs)
if options.cordic_freq1 < options.cordic_freq2:
self.usrp_freq = options.cordic_freq1
self.freq_diff = options.cordic_freq1 - options.cordic_freq2
else:
self.usrp_freq = options.cordic_freq2
self.freq_diff = options.cordic_freq2 - options.cordic_freq1
print "tune USRP to = ", self.usrp_freq
u = usrp.source_c (0, self.usrp_decim)
if options.rx_subdev_spec is None:
options.rx_subdev_spec = pick_subdevice(u)
u.set_mux(usrp.determine_rx_mux_value(u, options.rx_subdev_spec))
subdev = usrp.selected_subdev(u, options.rx_subdev_spec)
print "Using RX d'board %s" % (subdev.side_and_name(),)
#u.set_rx_freq (0, -options.cordic_freq)
u.tune(0, subdev, self.usrp_freq)
u.set_pga(0, options.gain)
u.set_pga(1, options.gain)
# Create filter to get actual channels we want
chan_coeffs = gr.firdes.low_pass (1.0, # gain
4e6, # sampling rate
150e3, # low pass cutoff freq
50e3, # width of trans. band
gr.firdes.WIN_HANN) # filter type
print "len(rx_chan_coeffs) =", len(chan_coeffs)
# Decimating Channel filter with frequency translation
# complex in and out, float taps
self.ddc1 = gr.freq_xlating_fir_filter_ccf(13, # decimation rate
chan_coeffs, # taps
0, # frequency translation amount
4e6) # input sample rate
self.ddc2 = gr.freq_xlating_fir_filter_ccf(13, # decimation rate
chan_coeffs, # taps
self.freq_diff, # frequency translation amount
4e6) # input sample rate
# receiver
gain_mu = 0.002*self.samples_per_symbol
self.packet_receiver1 = cc1k_sos_pkt.cc1k_demod_pkts(self,
callback=self.rx_callback1,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
p_size=payload_size,
threshold=-1)
self.packet_receiver2 = cc1k_sos_pkt.cc1k_demod_pkts(self,
callback=self.rx_callback2,
sps=self.samples_per_symbol,
symbol_rate=self.data_rate,
p_size=payload_size,
threshold=-1)
u = gr.file_source(gr.sizeof_gr_complex, 'tx_test.dat')
self.connect(u, self.ddc1, self.packet_receiver1)
self.connect(u, self.ddc2, self.packet_receiver2)
self.filesink = gr.file_sink(gr.sizeof_gr_complex, 'rx_test.dat')
#self.connect(u, self.filesink)
if 0 and not(options.no_gui):
fft_input = fftsink.fft_sink_c (self, panel, title="Input", fft_size=512, sample_rate=self.fs)
self.connect (u, fft_input)
vbox.Add (fft_input.win, 1, wx.EXPAND)
