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#!/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: 3.9.2.0
from gnuradio import blocks
from gnuradio import digital
from gnuradio import gr
from gnuradio.filter import firdes
from gnuradio.fft import window
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", catch_exceptions=True)
##################################################
# 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, 0x0a ]
##################################################
# 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,
truncate=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()
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