def detect_usrp2():
interface = 'eth0'
args = ['find_usrps', '-e', interface]
p = subprocess.Popen(args=args,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
shell=False,
universal_newlines=True)
msg = p.stdout.read()
usrp2_macs = sorted(map(lambda l: l.split()[0], filter(lambda l: l.count(':') >= 5, msg.strip().splitlines())))
if(len(usrp2_macs)==0):
print "\033[1;31mno USRP2's found\033[1;m"
return -1
for usrp2_mac in usrp2_macs:
print "\033[1;31mUSRP2 found, mac address:", usrp2_mac, "\033[1;m"
u2 = usrp2.source_32fc(interface, usrp2_mac)
db = u2.daughterboard_id()
if(db!=-1):
db_name = [k for k, v in usrp_dbid.__dict__.iteritems() if v == db][0]
print "\033[1;33mRX daughterboard:", db_name, "(dbid: 0x%04X)" % (db,), "\033[1;m"
print "freq range: (", u2.freq_min()/1e6, "MHz, ", u2.freq_max()/1e6, "MHz )"
u2 = usrp2.sink_32fc(interface, usrp2_mac)
db = u2.daughterboard_id()
if(db!=-1):
db_name = [k for k, v in usrp_dbid.__dict__.iteritems() if v == db][0]
print "\033[1;33mTX daughterboard:", db_name, "(dbid: 0x%04X)" % (db,), "\033[1;m"
print "freq range: (", u2.freq_min()/1e6, "MHz, ", u2.freq_max()/1e6, "MHz )"
def __init__(self, options):
gr.top_block.__init__(self)
self.u = usrp2.sink_32fc(options.interface, options.mac_addr)
self.samples_per_symbol = 2
self.chan_num = options.channel
self.data_rate = int(self.u.dac_rate() / self.samples_per_symbol / options.interp_rate)
self.u.set_center_freq(ieee802_15_4_pkt.chan_802_15_4.chan_map[self.chan_num])
self.u.set_interp(options.interp_rate)
if not options.gain:
g = self.u.gain_range()
options.gain = float(g[0] + g[1]) / 2
self.u.set_gain(options.gain)
print "cordic_freq = %s" % (eng_notation.num_to_str(ieee802_15_4_pkt.chan_802_15_4.chan_map[self.chan_num]))
print "data_rate = ", eng_notation.num_to_str(self.data_rate)
print "samples_per_symbol = ", self.samples_per_symbol
print "usrp_interp = ", options.interp_rate
# self.u.set_pga(0, options.gain)
# self.u.set_pga(1, options.gain)
# transmitter
self.packet_transmitter = ieee802_15_4_pkt.ieee802_15_4_mod_pkts(
self, spb=self.samples_per_symbol, msgq_limit=2
)
self.gain = gr.multiply_const_cc(1)
self.connect(self.packet_transmitter, self.gain, self.u)
def set_usrp2(self, interface, mac_addr):
self._u = usrp2.sink_32fc(interface, mac_addr)
self._dac_rate = self._u.dac_rate()
if self._verbose:
print "Network interface:", interface
print "Network address:", self._u.mac_addr()
print "Daughterboard ID:", hex(self._u.daughterboard_id())
def __init__(self, options):
gr.top_block.__init__(self)
self.file_source = gr.file_source(gr.sizeof_gr_complex*1, "matlabframe.dat", options.repeat)
self.usrp2_sink = usrp2.sink_32fc(options.interface, options.mac_addr)
self.usrp2_sink.set_interp(options.interp)
self.usrp2_sink.set_center_freq(options.freq)
self.usrp2_sink.set_gain(options.gain)
self.connect((self.file_source, 0), (self.usrp2_sink, 0))
def _setup_usrp_sink(self):
"""
Creates a USRP sink, determines the settings for best bitrate,
and attaches to the transmitter's subdevice.
"""
self.u = usrp2.sink_32fc(self._interface, self._mac_addr)
self.u.set_interp(self._interp)
self.u.set_gain(self._gain)
self.set_freq(self._tx_freq)
def sink(options):
from gnuradio import usrp2
u = usrp2.sink_32fc (ifc=options.ifc, mac=expand(options.mac))
u.set_interp(options.interp)
ok = u.set_center_freq(options.freq)
if not ok:
raise ValueError("Failed to set Tx frequency to %s" % (eng_notation.num_to_str(options.freq),))
if options.gain is None:
options.gain = u.gain_max() # default gain is MAX (actually, it doesn't seem to matter)
u.set_gain(options.gain) # (self.u.gain_range()[1])
return u
def __init__(self): grc_wxgui.top_block_gui.__init__(self, title="Top Block") ################################################## # Variables ################################################## self.samp_rate = samp_rate = 32000 ################################################## # Blocks ################################################## self.usrp2_sink_xxxx_0 = usrp2.sink_32fc() self.usrp2_sink_xxxx_0.set_interp(16) self.usrp2_sink_xxxx_0.set_center_freq(900e6) self.usrp2_sink_xxxx_0.set_gain(0) self.usrp2_sink_xxxx_0.config_mimo(usrp2.MC_WE_DONT_LOCK) self.gr_noise_source_x_0 = gr.noise_source_c(gr.GR_GAUSSIAN, 1, 42) ################################################## # Connections ################################################## self.connect((self.gr_noise_source_x_0, 0), (self.usrp2_sink_xxxx_0, 0))
def _setup_usrp2(self): self._u = usrp2.sink_32fc(self._interface, self._mac_addr)
def _setup_uhd(self):
def _setup_usrp2(self):
self._u = usrp2.sink_32fc(self._interface, self._mac_addr)
def _setup_usrp2(self):
from gnuradio import usrp2
self._u = usrp2.sink_32fc(self._interface, self._mac_addr)
def _setup_usrp2(self): self._u = usrp2.sink_32fc(self._interface, self._mac_addr)
def _setup_dummy(self): self._u = gr.null_sink(gr.sizeof_gr_complex)