3 from gnuradio import gr, gru
4 from gnuradio import usrp
5 from gnuradio.eng_option import eng_option
6 from optparse import OptionParser
7 from gnuradio.wxgui import stdgui, slider
10 class flex_siggen (stdgui.gui_flow_graph):
11 __slots__ = ['interp', 'waveform_type', 'waveform_ampl',
12 'waveform_freq', 'waveform_offset', 'fg', 'usrp',
13 'siggen', 'noisegen', 'src', 'file_sink' ]
15 def __init__ (self,frame,panel,vbox,argv):
16 stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)
21 parser = OptionParser (option_class=eng_option)
22 parser.add_option ("-a", "--amplitude", type="int", default=32000,
24 parser.add_option ("-i", "--interp", type="int", default=64,
25 help="set fpga interpolation rate to INTERP")
26 parser.add_option ("-n", "--nchannels", type="int", default=1,
27 help="set number of output channels to NCHANNELS")
28 (options, args) = parser.parse_args ()
30 self.waveform_type = gr.GR_CONST_WAVE
31 self.waveform_ampl = options.amplitude
32 self.waveform_freq = 100.12345e3
33 self.waveform_offset = 0
35 self.interp = options.interp
36 self._instantiate_blocks ()
37 self.usrp.set_nchannels (options.nchannels)
39 self.dboard=self.usrp.db[0][0]
41 self.set_waveform_type (self.waveform_type)
42 vbox.Add(slider.slider(panel, 390, 510, self.set_rf_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
43 vbox.Add(slider.slider(panel, -45000, +45000, self.set_if_freq), 1, wx.EXPAND|wx.ALIGN_CENTER)
44 #vbox.Add(slider.slider(panel, 0, 4095, self.set_gain), 1, wx.EXPAND|wx.ALIGN_CENTER)
47 return self.usrp.dac_freq() / self.interp
49 def usb_throughput (self):
50 return self.usb_freq () * 4
52 def set_waveform_type (self, type):
54 valid waveform types are: gr.GR_SIN_WAVE, gr.GR_CONST_WAVE,
55 gr.GR_UNIFORM and gr.GR_GAUSSIAN
57 self._configure_graph (type)
58 self.waveform_type = type
60 def set_waveform_ampl (self, ampl):
61 self.waveform_ampl = ampl
62 self.siggen.set_amplitude (ampl)
63 self.noisegen.set_amplitude (ampl)
65 def set_waveform_freq (self, freq):
66 self.waveform_freq = freq
67 self.siggen.set_frequency (freq)
69 def set_if_freq (self, freq):
71 self.usrp.set_tx_freq (0,freq*1e3)
73 def set_rf_freq (self, freq):
75 (success,actual_freq) = self.dboard.set_freq (freq*1e6)
77 print "Failed on ", freq
79 def set_waveform_offset (self, offset):
80 self.waveform_offset = offset
81 self.siggen.set_offset (offset)
83 def set_interpolator (self, interp):
85 self.siggen.set_sampling_freq (self.usb_freq ())
86 self.usrp.set_interp_rate (interp)
88 def set_duc_freq (self, freq):
89 self.usrp.set_tx_freq (0, freq)
91 def _instantiate_blocks (self):
93 self.usrp = usrp.sink_c (0, self.interp)
95 self.siggen = gr.sig_source_c (self.usb_freq (),
101 self.noisegen = gr.noise_source_c (gr.GR_UNIFORM,
105 def _configure_graph (self, type):
106 was_running = self.is_running ()
109 self.disconnect_all ()
110 if type == gr.GR_SIN_WAVE or type == gr.GR_CONST_WAVE:
111 self.connect (self.siggen, self.usrp)
112 self.siggen.set_waveform (type)
113 self.src = self.siggen
114 elif type == gr.GR_UNIFORM or type == gr.GR_GAUSSIAN:
115 self.connect (self.noisegen, self.usrp)
116 self.noisegen.set_type (type)
117 self.src = self.noisegen
119 raise ValueError, type
124 if __name__ == '__main__':
125 parser = OptionParser (option_class=eng_option)
126 parser.add_option ("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE,
127 help="generate a complex sinusoid [default]", default=gr.GR_SIN_WAVE)
128 parser.add_option ("--const", dest="type", action="store_const", const=gr.GR_CONST_WAVE,
129 help="generate a constant output")
130 parser.add_option ("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN,
131 help="generate Gaussian random output")
132 parser.add_option ("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM,
133 help="generate Uniform random output")
134 parser.add_option ("-f", "--freq", type="eng_float", default=100e3,
135 help="set waveform frequency to FREQ")
136 parser.add_option ("-r", "--rf-freq", type="eng_float", default=910e6,
137 help="set waveform frequency to FREQ")
138 parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3,
139 help="set waveform amplitude to AMPLITUDE", metavar="AMPL")
140 parser.add_option ("-o", "--offset", type="eng_float", default=0,
141 help="set waveform offset to OFFSET")
142 parser.add_option ("-c", "--duc-freq", type="eng_float", default=0,
143 help="set Tx DUC frequency to FREQ", metavar="FREQ")
144 parser.add_option ("-m", "--mux", type="intx", default=0x98,
145 help="set output mux register")
147 app = stdgui.stdapp (flex_siggen, "USRP FlexRF Siggen")