def __init__(self, options): gr.top_block.__init__(self) # build graph #updated 2011 May 27, MR self.u = uhd.usrp_source(device_addr="", io_type=uhd.io_type.COMPLEX_FLOAT32, num_channels=1) self.u.set_subdev_spec("", 0) self.u.set_antenna("TX/RX", 0) self.u.set_samp_rate(options.samp_rate) #adc_rate = self.u.adc_rate() # 64 MS/s #usrp_decim = options.decim #self.u.set_decim_rate(usrp_decim) self.usrp_rate = self.u.get_samp_rate() #adc_rate / usrp_decim if options.verbose: print "sample rate is", self.usrp_rate self.sense = sense_path(self.usrp_rate, self.set_freq, options) self.connect(self.u, self.sense) if options.gain is None: # if no gain was specified, use the mid-point in dB # updated 2011 May 31, MR #g = self.subdev.gain_range() g = self.u.get_gain_range() options.gain = float(g.start()+g.stop())/2 self.set_gain(options.gain) if options.verbose: print "gain =", options.gain
def __init__(self, callback, options): gr.top_block.__init__(self) #self._tx_freq = options.tx_freq # tranmitter's center frequency self._tx_gain = options.tx_gain # transmitter's gain self._samp_rate = options.samp_rate # sample rate for USRP #self._rx_freq = options.rx_freq # receiver's center frequency self._rx_gain = options.rx_gain # receiver's gain #if self._tx_freq is None: # sys.stderr.write("-f FREQ or --freq FREQ or --tx-freq FREQ must be specified\n") # raise SystemExit #if self._rx_freq is None: # sys.stderr.write("-f FREQ or --freq FREQ or --rx-freq FREQ must be specified\n") # raise SystemExit # Set up USRP sink and source self._setup_usrp_sink() self._setup_usrp_source() self.txpath = transmit_path(options) self.rxpath = receive_path(callback, options) self.rx_valve = gr.copy(gr.sizeof_gr_complex) self.sense = sense_path(self.set_freq, options) # Set center frequency of USRP ok = self.set_freq(self.sense.channels[0]) #self._tx_freq) if not ok: print "Failed to set Tx frequency to %s" % ( eng_notation.num_to_str(self.sense.channels[0]), ) raise ValueError self.sense_valve = gr.copy(gr.sizeof_gr_complex) self.rx_valve.set_enabled(True) self.sense_valve.set_enabled(False) self.connect(self.txpath, self.u_snk) self.connect(self.u_src, self.rx_valve, self.rxpath) self.connect(self.u_src, self.sense_valve, self.sense) if options.verbose: self._print_verbage() if options.show_rx_gain_range: print "RX gain range: ", self.u_src.get_gain_range() if options.show_tx_gain_range: print "TX gain range: ", self.u_snk.get_gain_range()
def __init__(self, callback, options): gr.top_block.__init__(self) #self._tx_freq = options.tx_freq # tranmitter's center frequency self._tx_gain = options.tx_gain # transmitter's gain self._samp_rate = options.samp_rate # sample rate for USRP #self._rx_freq = options.rx_freq # receiver's center frequency self._rx_gain = options.rx_gain # receiver's gain #if self._tx_freq is None: # sys.stderr.write("-f FREQ or --freq FREQ or --tx-freq FREQ must be specified\n") # raise SystemExit #if self._rx_freq is None: # sys.stderr.write("-f FREQ or --freq FREQ or --rx-freq FREQ must be specified\n") # raise SystemExit # Set up USRP sink and source self._setup_usrp_sink() self._setup_usrp_source() self.txpath = transmit_path(options) self.rxpath = receive_path(callback, options) self.rx_valve = gr.copy(gr.sizeof_gr_complex) self.sense = sense_path(self.set_freq, options) # Set center frequency of USRP ok = self.set_freq(self.sense.channels[0]) #self._tx_freq) if not ok: print "Failed to set Tx frequency to %s" % (eng_notation.num_to_str(self.sense.channels[0]),) raise ValueError self.sense_valve = gr.copy(gr.sizeof_gr_complex) self.rx_valve.set_enabled(True) self.sense_valve.set_enabled(False) self.connect(self.txpath, self.u_snk) self.connect(self.u_src, self.rx_valve, self.rxpath) self.connect(self.u_src, self.sense_valve, self.sense) if options.verbose: self._print_verbage() if options.show_rx_gain_range: print "RX gain range: ", self.u_src.get_gain_range() if options.show_tx_gain_range: print "TX gain range: ", self.u_snk.get_gain_range()