def main():
sys.path.append(os.getcwd())
from PHY import PhysicalLayer
samples_per_symbol = 4
samp_rate = 4e6
tb = gr.top_block()
modulator = blks2.gmsk_mod(samples_per_symbol=samples_per_symbol)
demodulator = blks2.gmsk_demod(samples_per_symbol=samples_per_symbol)
sys.stderr.write('Using bitrate %sbits/s\n' % eng_notation.num_to_str(samp_rate / samples_per_symbol / modulator.bits_per_symbol()))
sys.stderr.flush()
phy = PhysicalLayer.PhysicalLayer(modulator, demodulator, hint = 'addr=192.168.10.2', access_code = 'master')
tb.connect(phy)
phy.tune(1.8e9)
phy.set_gain(45)
phy.set_samp_rate(samp_rate)
args = shlex.split('cvlc --sout "#transcode{vcodec=theora, vb=128}:std{access=file, mux=ogg, dst=-}" v4l2:///dev/video0')
child = subprocess.Popen(args, stdout = subprocess.PIPE, stdin = subprocess.PIPE, stderr=None)
print 'Started vlc with pid', child.pid
def read_data_from_child():
print "[DEBUG] reading from child's pipe"
phy.send_pkt(child.stdout.read(512))
return True
tb.start()
gobject.threads_init()
gobject.idle_add(read_data_from_child)
loop = gobject.MainLoop()
loop.run()
def main():
sys.path.append(os.getcwd())
from PHY import PhysicalLayer
samples_per_symbol = 4
samp_rate = 4e6
tb = gr.top_block()
modulator = blks2.gmsk_mod(samples_per_symbol=samples_per_symbol)
demodulator = blks2.gmsk_demod(samples_per_symbol=samples_per_symbol)
sys.stderr.write('Using bitrate %sbits/s\n' % eng_notation.num_to_str(samp_rate / samples_per_symbol / modulator.bits_per_symbol()))
sys.stderr.flush()
phy = PhysicalLayer.PhysicalLayer(modulator, demodulator, hint = 'addr=192.168.10.3', access_code = 'slave')
tb.connect(phy)
phy.tune(1.8e9)
phy.set_gain(45)
phy.set_samp_rate(samp_rate)
child = subprocess.Popen(['cvlc', '-'], stdout = subprocess.PIPE, stdin = subprocess.PIPE, stderr=None)
#print 'Started vlc with pid', child.pid
def write_to_child_pipe(ok, data):
print "[DEBUG] writing to VLC's pipe"
if(ok):
child.stdin.write(data)
phy.set_rx_callback(write_to_child_pipe)
tb.start()
gobject.threads_init()
loop = gobject.MainLoop()
loop.run()
def main():
sys.path.append(os.getcwd())
from MAC import MacLayer
from PHY import PhysicalLayer
import LLC.SlidingWindow
samples_per_symbol = 2
samp_rate = 4e6
tb = gr.top_block()
modulator = blks2.gmsk_mod(samples_per_symbol=samples_per_symbol)
demodulator = blks2.gmsk_demod(samples_per_symbol=samples_per_symbol)
sys.stderr.write('Using bitrate %sbits/s\n' % eng_notation.num_to_str(
samp_rate / samples_per_symbol / modulator.bits_per_symbol()))
sys.stderr.flush()
phy = PhysicalLayer.PhysicalLayer(modulator,
demodulator,
hint='addr=192.168.10.3',
access_code='slave')
#phy = PhysicalLayer.PhysicalLayer(modulator, demodulator, hint = 'type=usrp1', access_code = 'slave')
mac = MacLayer.SimpleMacLayer(phy, addr=True)
llc = LLC.SlidingWindowDataLinkLayer(mac, wr=1500, wt=4000)
def cleanup():
tb.stop()
sys.exit(0)
tb.connect(phy)
phy.tune(1.8e9)
phy.set_gain(45)
phy.set_samp_rate(samp_rate)
#dbus stuff
DBusGMainLoop(set_as_default=True)
bus = dbus.SessionBus()
service = bus.get_object('org.gnuradio.grotarapi',
'/org/gnuradio/grotarapi/controller/slave')
iface = dbus.Interface(service,
dbus_interface='org.gnuradio.grotarapi.guts')
def send_data(data):
sys.stderr.write('[Slave Child] trying to send data %s\n' % data)
sys.stderr.flush()
llc.send_pkt(str(data))
iface.connect_to_signal("send_data", send_data)
llc.set_rx_callback(iface.rx_callback_binary)
tb.start()
gobject.threads_init()
loop = gobject.MainLoop()
loop.run()
def main():
sys.path.append(os.getcwd())
gobject.threads_init()
loop = gobject.MainLoop()
from MAC import MacLayer
from PHY import PhysicalLayer
import LLC.SlidingWindow
samples_per_symbol = 2
samp_rate = 4e6
tb = gr.top_block()
modulator = blks2.gmsk_mod(samples_per_symbol=samples_per_symbol)
demodulator = blks2.gmsk_demod(samples_per_symbol=samples_per_symbol)
sys.stderr.write('Using bitrate %sbits/s\n' % eng_notation.num_to_str(samp_rate / samples_per_symbol / modulator.bits_per_symbol()))
sys.stderr.flush()
phy = PhysicalLayer.PhysicalLayer(modulator, demodulator, hint = 'addr=192.168.10.2', access_code = 'master')
#phy = PhysicalLayer.PhysicalLayer(modulator, demodulator, hint = 'type=usrp1', access_code = 'slave')
mac = MacLayer.SimpleMacLayer(phy, addr = False)
llc = LLC.SlidingWindowDataLinkLayer(mac, wr = 1500, wt = 4000)
tb.connect(phy)
phy.tune(1.8e9)
phy.set_gain(45)
phy.set_samp_rate(samp_rate)
#dbus stuff
DBusGMainLoop(set_as_default = True)
bus = dbus.SessionBus()
service = bus.get_object('org.gnuradio.grotarapi',
'/org/gnuradio/grotarapi/controller/master')
iface = dbus.Interface(service, dbus_interface = 'org.gnuradio.grotarapi.guts')
def send_data(data):
#sys.stderr.write('[Master Child] trying to send data %s\n' % data)
#sys.stderr.flush()
llc.send_pkt(str(data))
def rx_callback(data):
sys.stderr.write('[Master Child] received %s\n' % data)
iface.rx_callback_binary(data)
iface.connect_to_signal("send_data", send_data)
llc.set_rx_callback(rx_callback)
tb.start()
loop.run()
def __init__(self, outputfile, options):
gr.top_block.__init__(self)
if options.dsp:
self.dst = audio.sink( options.dsp_sample_rate )
else:
self.dst = gr.wavfile_sink(outputfile, 2, options.wav_sample_rate, 16)
self.c_to_iq = gr.complex_to_float()
self.connect( (self.c_to_iq, 0), (self.dst, 0))
self.connect( (self.c_to_iq, 1), (self.dst, 1))
# settings for the modulator: /usr/local/lib/python2.5/site-packages/gnuradio/blks2impl/gmsk.py
self.modulator = blks2.gmsk_mod(samples_per_symbol=options.samples_per_symbol)
self.pkt_queue = blks2.mod_pkts( modulator=self.modulator )
if options.carrier_frequency == 0:
self.mixer = self.pkt_queue
else:
self.mixer = gr.multiply_vcc(1)
self.carrier = gr.sig_source_c( options.carrier_sample_rate, gr.GR_SIN_WAVE, options.carrier_frequency, 1.0 )
self.lowpass = gr.fir_filter_ccf(1, firdes.low_pass(1, 48000, 48000/(2*options.samples_per_symbol)+500, 500, firdes.WIN_HAMMING, 6.76))
self.connect(self.pkt_queue, self.lowpass, (self.mixer, 0) )
self.connect(self.carrier, (self.mixer, 1) )
self.amp = gr.multiply_const_cc(1); self.amp.set_k(options.amp_amplitude)
self.connect(self.mixer, self.amp, self.c_to_iq)
if options.debug_wavs:
from myblks import debugwav
self._dpassw = debugwav("tx_passband", options)
self._dprefw = debugwav("tx_prefband", options)
self._dbasew = debugwav("tx_baseband", options)
self.connect(self.amp, self._dpassw)
self.connect(self.lowpass, self._dbasew)
self.connect(self.pkt_queue, self._dprefw)
if options.debug_files:
self._dpassf = gr.file_sink(gr.sizeof_gr_complex*1, "debug_tx_passband.d_c")
self._dpreff = gr.file_sink(gr.sizeof_gr_complex*1, "debug_tx_prefband.d_c")
self._dbasef = gr.file_sink(gr.sizeof_gr_complex*1, "debug_tx_baseband.d_c")
self.connect(self.amp, self._dpassf)
self.connect(self.pkt_queue, self._dpreff)
self.connect(self.lowpass, self._dbasef)
def main():
signal.signal(signal.SIGCHLD, signal.SIG_IGN)
sys.path.append(os.getcwd())
from PHY import PhysicalLayer
samples_per_symbol = 4
samp_rate = 4e6
tb = gr.top_block()
modulator = blks2.gmsk_mod(samples_per_symbol=samples_per_symbol)
demodulator = blks2.gmsk_demod(samples_per_symbol=samples_per_symbol)
sys.stderr.write('Using bitrate %sbits/s\n' % eng_notation.num_to_str(
samp_rate / samples_per_symbol / modulator.bits_per_symbol()))
sys.stderr.flush()
phy = PhysicalLayer.PhysicalLayer(modulator,
demodulator,
hint='addr=192.168.10.2',
access_code='master')
tb.connect(phy)
phy.tune(1.8e9)
phy.set_gain(45)
phy.set_samp_rate(samp_rate)
args = shlex.split(
'cvlc --sout "#transcode{acodec=vorbis, ab=48}:std{access=file, mux=ogg, dst=-}" seek.mp3'
)
child = subprocess.Popen(args,
stdout=subprocess.PIPE,
stdin=subprocess.PIPE,
stderr=None)
#print 'Started vlc with pid', child.pid
def read_data_from_child():
print "[DEBUG] reading from child's pipe"
phy.send_pkt(child.stdout.read(512))
return True
tb.start()
gobject.threads_init()
gobject.idle_add(read_data_from_child)
loop = gobject.MainLoop()
loop.run()
def main():
sys.path.append(os.getcwd())
from PHY import PhysicalLayer
samples_per_symbol = 4
samp_rate = 4e6
tb = gr.top_block()
modulator = blks2.gmsk_mod(samples_per_symbol=samples_per_symbol)
demodulator = blks2.gmsk_demod(samples_per_symbol=samples_per_symbol)
sys.stderr.write('Using bitrate %sbits/s\n' % eng_notation.num_to_str(
samp_rate / samples_per_symbol / modulator.bits_per_symbol()))
sys.stderr.flush()
phy = PhysicalLayer.PhysicalLayer(modulator,
demodulator,
hint='addr=192.168.10.3',
access_code='slave')
tb.connect(phy)
phy.tune(1.8e9)
phy.set_gain(45)
phy.set_samp_rate(samp_rate)
child = subprocess.Popen(['cvlc', '-'],
stdout=subprocess.PIPE,
stdin=subprocess.PIPE,
stderr=None)
#print 'Started vlc with pid', child.pid
def write_to_child_pipe(ok, data):
print "[DEBUG] writing to VLC's pipe"
if (ok):
child.stdin.write(data)
phy.set_rx_callback(write_to_child_pipe)
tb.start()
gobject.threads_init()
loop = gobject.MainLoop()
loop.run()
def __init__(self): gr.top_block.__init__(self, "Simple TX/RX Path") ################################################## # Blocks ################################################## self.blks2_gmsk_demod_0 = blks2.gmsk_demod( samples_per_symbol=2, gain_mu=0.175, mu=0.5, omega_relative_limit=0.005, freq_error=0.0, verbose=False, log=False, ) self.blks2_gmsk_mod_0 = blks2.gmsk_mod( samples_per_symbol=2, bt=0.35, verbose=False, log=False, ) self.blks2_packet_decoder_0 = grc_blks2.packet_demod_b(grc_blks2.packet_decoder( access_code="", threshold=-1, callback=lambda ok, payload: self.blks2_packet_decoder_0.recv_pkt(ok, payload), ), ) self.blks2_packet_encoder_0 = grc_blks2.packet_mod_b(grc_blks2.packet_encoder( samples_per_symbol=1, bits_per_symbol=1, access_code="", pad_for_usrp=True, ), payload_length=0, ) self.blks2_tcp_sink_0 = grc_blks2.tcp_sink( itemsize=gr.sizeof_char*1, addr="127.0.0.1", port=9001, server=True, ) self.blks2_tcp_source_0 = grc_blks2.tcp_source( itemsize=gr.sizeof_char*1, addr="127.0.0.1", port=9000, server=True, ) self.gr_channel_model_0 = gr.channel_model( noise_voltage=0.0, frequency_offset=0.0, epsilon=1.0, taps=(1.0 + 1.0j, ), noise_seed=42, ) ################################################## # Connections ################################################## self.connect((self.blks2_tcp_source_0, 0), (self.blks2_packet_encoder_0, 0)) self.connect((self.blks2_packet_encoder_0, 0), (self.blks2_gmsk_mod_0, 0)) self.connect((self.blks2_gmsk_mod_0, 0), (self.gr_channel_model_0, 0)) self.connect((self.gr_channel_model_0, 0), (self.blks2_gmsk_demod_0, 0)) self.connect((self.blks2_gmsk_demod_0, 0), (self.blks2_packet_decoder_0, 0)) self.connect((self.blks2_packet_decoder_0, 0), (self.blks2_tcp_sink_0, 0))
