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add --args command line argument to pass to gr-osmosdr source

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Dimitri Stolnikov 2012-06-07 15:22:37 +02:00
parent e55c014d9c
commit 74d40768ed
1 changed files with 4 additions and 3 deletions
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7
src/demod/python/rtlsdr-tetra_demod_fft.py
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@ -38,7 +38,7 @@ class top_block(grc_wxgui.top_block_gui):
self.ifreq = options.frequency self.ifreq = options.frequency
self.rfgain = options.gain self.rfgain = options.gain
self.src = osmosdr.source_c() self.src = osmosdr.source_c(options.args)
self.src.set_center_freq(self.ifreq) self.src.set_center_freq(self.ifreq)
self.src.set_sample_rate(int(options.sample_rate)) self.src.set_sample_rate(int(options.sample_rate))
@ -53,6 +53,7 @@ class top_block(grc_wxgui.top_block_gui):
# may differ from the requested rate # may differ from the requested rate
sample_rate = self.src.get_sample_rate() sample_rate = self.src.get_sample_rate()
sys.stderr.write("sample rate: %d\n" % (sample_rate))
symbol_rate = 18000 symbol_rate = 18000
sps = 2 # output rate will be 36,000 sps = 2 # output rate will be 36,000
@ -67,8 +68,6 @@ class top_block(grc_wxgui.top_block_gui):
taps = gr.firdes.low_pass(1.0, sample_rate, options.low_pass, options.low_pass * 0.2, gr.firdes.WIN_HANN) taps = gr.firdes.low_pass(1.0, sample_rate, options.low_pass, options.low_pass * 0.2, gr.firdes.WIN_HANN)
self.tuner = gr.freq_xlating_fir_filter_ccf(first_decim, taps, self.offset, sample_rate) self.tuner = gr.freq_xlating_fir_filter_ccf(first_decim, taps, self.offset, sample_rate)
sys.stderr.write("sample rate: %d\n" % (sample_rate))
self.demod = cqpsk.cqpsk_demod( self.demod = cqpsk.cqpsk_demod(
samples_per_symbol = sps, samples_per_symbol = sps,
excess_bw=0.35, excess_bw=0.35,
@ -203,6 +202,8 @@ class top_block(grc_wxgui.top_block_gui):
def get_options(): def get_options():
parser = OptionParser(option_class=eng_option) parser = OptionParser(option_class=eng_option)
parser.add_option("-a", "--args", type="string", default="",
help="gr-osmosdr device arguments")
parser.add_option("-s", "--sample-rate", type="eng_float", default=1800000, parser.add_option("-s", "--sample-rate", type="eng_float", default=1800000,
help="set receiver sample rate (default 1800000)") help="set receiver sample rate (default 1800000)")
parser.add_option("-f", "--frequency", type="eng_float", default=394.6e6, parser.add_option("-f", "--frequency", type="eng_float", default=394.6e6,