def __init__(self, address, options): gr.top_block.__init__(self) # Extract the initial options self.frequency = options.frequency self.filename = options.filename self.decim = options.decim self.gain = options.gain self.address = address # Set up and initialize the MSDD receiver self.port = 10001 # required port self.src = msdd.source_c(0, 1, self.address, self.port) self.src.set_decim_rate(self.decim) self.src.set_desired_packet_size(0, 1460) self.src.set_pga(0, self.gain) self.src.set_rx_freq(0, self.frequency) # Display some info print "Min PGA: ", self.src.pga_min() print "Max PGA: ", self.src.pga_max() print "PGA: ", self.src.pga(0) print "Decim: ", self.src.decim_rate() print "Freq: ", self.src.rx_freq(0) # Build a file sink to save the info for post analysis self.snk = gr.file_sink(gr.sizeof_gr_complex, self.filename) # Connect the reciever source to file sink self.connect(self.src, self.snk)
def _setup_source(self): # build graph self._port = 10001 self.src = msdd.source_c(0, 1, self._address, self._port) self.src.set_decim_rate(self._decim) self.src.set_desired_packet_size(0, 1460) self.set_gain(self._rx_gain) self.set_freq(self._rx_freq)
def __init__(self, frame, panel, vbox, argv): stdgui2.std_top_block.__init__(self, frame, panel, vbox, argv) parser = OptionParser(option_class=eng_option) # parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None, # help="select MSDD Rx side A or B (default=A)") parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, help="set frequency to FREQ", metavar="FREQ") parser.add_option("-g", "--gain", type="eng_float", default=40, help="set gain in dB (default is midpoint)") # parser.add_option("-V", "--volume", type="eng_float", default=None, # help="set volume (default is midpoint)") # parser.add_option("-O", "--audio-output", type="string", default="", # help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") (options, args) = parser.parse_args() if len(args) != 0: parser.print_help() sys.exit(1) self.frame = frame self.panel = panel self.vol = 0 self.gain_range = (10, 70, .5) self.state = "FREQ" self.freq = 0 msdd_decim = 2 # build graph self.fft_size = 8192 self.sample_rate = 200 self.u = msdd.source_c(0, 1, "10.45.4.44", 10000) self.u.set_decim_rate(4) self.u.set_desired_packet_size(0, 1460 * 100) #self.u.set_decim_rate(msdd_decim) # usrp_rate = adc_rate / msdd_decim # 320 kS/s # chanfilt_decim = 1 # demod_rate = usrp_rate / chanfilt_decim # audio_decimation = 10 # audio_rate = demod_rate / audio_decimation # 32 kHz # # if options.rx_subdev_spec is None: # options.rx_subdev_spec = pick_subdevice(self.u) # # self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec)) # self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec) # print "Using RX d'board %s" % (self.subdev.side_and_name(),) # # # chan_filt_coeffs = optfir.low_pass (1, # gain # usrp_rate, # sampling rate # 80e3, # passband cutoff # 115e3, # stopband cutoff # 0.1, # passband ripple # 60) # stopband attenuation # #print len(chan_filt_coeffs) # chan_filt = gr.fir_filter_ccf (chanfilt_decim, chan_filt_coeffs) # # self.guts = blks2.wfm_rcv (demod_rate, audio_decimation) # # self.volume_control = gr.multiply_const_ff(self.vol) # # # sound card as final sink # audio_sink = audio.sink (int (audio_rate), # options.audio_output, # False) # ok_to_block # now wire it all together #self.connect (self.u, chan_filt, self.guts, self.volume_control, audio_sink) self._build_gui(vbox) if options.gain is None: # if no gain was specified, use the mid-point in dB #g = self.subdev.gain_range() g = self.gain_range options.gain = float(g[0] + g[1]) / 2 # # if options.volume is None: # g = self.volume_range() # options.volume = float(g[0]+g[1])/2 # # if abs(options.freq) < 1e6: # options.freq *= 1e6 # set initial values # self.set_gain(options.gain) # self.set_vol(options.volume) if not (self.set_freq(options.freq)): self._set_status_msg("Failed to set initial frequency") print "Frequency: ", self.u.rx_freq(0)
def __init__(self,frame,panel,vbox,argv): stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) parser=OptionParser(option_class=eng_option) # parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None, # help="select MSDD Rx side A or B (default=A)") parser.add_option("-f", "--freq", type="eng_float", default=100.1e6, help="set frequency to FREQ", metavar="FREQ") parser.add_option("-g", "--gain", type="eng_float", default=40, help="set gain in dB (default is midpoint)") # parser.add_option("-V", "--volume", type="eng_float", default=None, # help="set volume (default is midpoint)") # parser.add_option("-O", "--audio-output", type="string", default="", # help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp") (options, args) = parser.parse_args() if len(args) != 0: parser.print_help() sys.exit(1) self.frame = frame self.panel = panel self.vol = 0 self.gain_range = (10, 70, .5) self.state = "FREQ" self.freq = 0 msdd_decim = 2 # build graph self.fft_size = 8192 self.sample_rate = 200 self.u = msdd.source_c(0, 1, "10.45.4.44", 10000) self.u.set_decim_rate(4) self.u.set_desired_packet_size(0, 1460*100) #self.u.set_decim_rate(msdd_decim) # usrp_rate = adc_rate / msdd_decim # 320 kS/s # chanfilt_decim = 1 # demod_rate = usrp_rate / chanfilt_decim # audio_decimation = 10 # audio_rate = demod_rate / audio_decimation # 32 kHz # # if options.rx_subdev_spec is None: # options.rx_subdev_spec = pick_subdevice(self.u) # # self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec)) # self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec) # print "Using RX d'board %s" % (self.subdev.side_and_name(),) # # # chan_filt_coeffs = optfir.low_pass (1, # gain # usrp_rate, # sampling rate # 80e3, # passband cutoff # 115e3, # stopband cutoff # 0.1, # passband ripple # 60) # stopband attenuation # #print len(chan_filt_coeffs) # chan_filt = gr.fir_filter_ccf (chanfilt_decim, chan_filt_coeffs) # # self.guts = blks2.wfm_rcv (demod_rate, audio_decimation) # # self.volume_control = gr.multiply_const_ff(self.vol) # # # sound card as final sink # audio_sink = audio.sink (int (audio_rate), # options.audio_output, # False) # ok_to_block # now wire it all together #self.connect (self.u, chan_filt, self.guts, self.volume_control, audio_sink) self._build_gui(vbox) if options.gain is None: # if no gain was specified, use the mid-point in dB #g = self.subdev.gain_range() g = self.gain_range options.gain = float(g[0]+g[1])/2 # # if options.volume is None: # g = self.volume_range() # options.volume = float(g[0]+g[1])/2 # # if abs(options.freq) < 1e6: # options.freq *= 1e6 # set initial values # self.set_gain(options.gain) # self.set_vol(options.volume) if not(self.set_freq(options.freq)): self._set_status_msg("Failed to set initial frequency") print "Frequency: ", self.u.rx_freq(0)