#!/usr/bin/env python3 # -*- coding: utf-8 -*- # # SPDX-License-Identifier: GPL-3.0 # # GNU Radio Python Flow Graph # Title: Access Code Symbols Generator # Author: Naoki Pross # GNU Radio version: 3.8.2.0 from gnuradio import blocks from gnuradio import digital from gnuradio import gr from gnuradio.filter import firdes import sys import signal from argparse import ArgumentParser from gnuradio.eng_arg import eng_float, intx from gnuradio import eng_notation class acgen(gr.top_block): def __init__(self): gr.top_block.__init__(self, "Access Code Symbols Generator") ################################################## # Variables ################################################## self.sps = sps = 4 self.samp_rate = samp_rate = 32000 self.excess_bw = excess_bw = 1 self.const = const = digital.constellation_qpsk().base() self.access_code = access_code = [ 0xaa, 0xff, 0xff ] ################################################## # Blocks ################################################## self.digital_constellation_modulator_0 = digital.generic_mod( constellation=const, differential=False, samples_per_symbol=sps, pre_diff_code=True, excess_bw=excess_bw, verbose=False, log=False) self.blocks_vector_source_x_0 = blocks.vector_source_b([0x00] * 10 + access_code * 10, False, 1, []) self.blocks_throttle_0 = blocks.throttle(gr.sizeof_char*1, samp_rate,True) self.blocks_file_sink_0 = blocks.file_sink(gr.sizeof_gr_complex*1, 'acgen.dat', False) self.blocks_file_sink_0.set_unbuffered(False) ################################################## # Connections ################################################## self.connect((self.blocks_throttle_0, 0), (self.digital_constellation_modulator_0, 0)) self.connect((self.blocks_vector_source_x_0, 0), (self.blocks_throttle_0, 0)) self.connect((self.digital_constellation_modulator_0, 0), (self.blocks_file_sink_0, 0)) def get_sps(self): return self.sps def set_sps(self, sps): self.sps = sps def get_samp_rate(self): return self.samp_rate def set_samp_rate(self, samp_rate): self.samp_rate = samp_rate self.blocks_throttle_0.set_sample_rate(self.samp_rate) def get_excess_bw(self): return self.excess_bw def set_excess_bw(self, excess_bw): self.excess_bw = excess_bw def get_const(self): return self.const def set_const(self, const): self.const = const def get_access_code(self): return self.access_code def set_access_code(self, access_code): self.access_code = access_code self.blocks_vector_source_x_0.set_data([0x00] * 10 + self.access_code * 10, []) def main(top_block_cls=acgen, options=None): tb = top_block_cls() def sig_handler(sig=None, frame=None): tb.stop() tb.wait() sys.exit(0) signal.signal(signal.SIGINT, sig_handler) signal.signal(signal.SIGTERM, sig_handler) tb.start() tb.wait() if __name__ == '__main__': main()