Merge pull request #51 from sundw2014/master
add -b option for gps-sdr-sim-uhd.py
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@ -31,18 +31,30 @@ class top_block(gr.top_block):
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self.uhd_usrp_sink.set_center_freq(options.frequency, 0)
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self.uhd_usrp_sink.set_gain(options.gain, 0)
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# a file source for the file generated by the gps-sdr-sim
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self.blocks_file_source = blocks.file_source(gr.sizeof_char*1, options.filename, True)
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if options.bits == 16:
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# a file source for the file generated by the gps-sdr-sim
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self.blocks_file_source = blocks.file_source(gr.sizeof_short*1, options.filename, True)
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# convert from signed bytes to short
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self.blocks_char_to_short = blocks.char_to_short(1)
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# convert from interleaved short to complex values
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self.blocks_interleaved_short_to_complex = blocks.interleaved_short_to_complex(False, False)
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# convert from interleaved short to complex values
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self.blocks_interleaved_short_to_complex = blocks.interleaved_short_to_complex(False, False)
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# establish the connections
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self.connect((self.blocks_file_source, 0), (self.blocks_interleaved_short_to_complex, 0))
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else:
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# a file source for the file generated by the gps-sdr-sim
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self.blocks_file_source = blocks.file_source(gr.sizeof_char*1, options.filename, True)
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# convert from signed bytes to short
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self.blocks_char_to_short = blocks.char_to_short(1)
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# convert from interleaved short to complex values
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self.blocks_interleaved_short_to_complex = blocks.interleaved_short_to_complex(False, False)
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# establish the connections
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self.connect((self.blocks_file_source, 0), (self.blocks_char_to_short, 0))
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self.connect((self.blocks_char_to_short, 0), (self.blocks_interleaved_short_to_complex, 0))
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# establish the connections
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self.connect((self.blocks_file_source, 0), (self.blocks_char_to_short, 0))
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self.connect((self.blocks_char_to_short, 0), (self.blocks_interleaved_short_to_complex, 0))
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self.connect((self.blocks_interleaved_short_to_complex, 0), (self.uhd_usrp_sink, 0))
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def get_options():
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@ -57,6 +69,8 @@ def get_options():
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help="set sample rate [default=2500000]")
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parser.add_option("-t", "--filename", type="string", default="gpssim.bin",
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help="set output file name [default=gpssim.bin]")
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parser.add_option("-b", "--bits", type="eng_float", default=16,
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help="set size of every sample [default=16]")
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(options, args) = parser.parse_args()
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if len(args) != 0:
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