| #!/usr/bin/env python2 |
| # -*- coding: utf-8 -*- |
| ################################################## |
| # GNU Radio Python Flow Graph |
| # Title: Trx radio interface |
| # Author: (C) Piotr Krysik 2017 |
| # Description: Alpha version of trx radio interface |
| # Generated: Fri Dec 1 10:49:25 2017 |
| ################################################## |
| |
| from dict_toggle_sign import dict_toggle_sign |
| from gnuradio import blocks |
| from gnuradio import digital |
| from gnuradio import eng_notation |
| from gnuradio import filter |
| from gnuradio import gr |
| from gnuradio import uhd |
| from gnuradio.eng_option import eng_option |
| from gnuradio.filter import firdes |
| from grgsm import gsm_gmsk_mod |
| from optparse import OptionParser |
| import grgsm |
| import math |
| import time |
| |
| |
| class radio_if_grc(gr.top_block): |
| |
| def __init__(self, delay_correction=285.616e-6, osr=4, ppm=-0.799427, rx_freq=935e6+36*0.2e6, rx_gain=40, samp_rate=13e6/12.0, timing_advance=0, trx_base_port="5710", trx_remote_addr="127.0.0.1", tx_freq=935e6+36*0.2e6-45e6, tx_gain=40, uplink_shift=-(6.0/1625000*(156.25)*3)): |
| gr.top_block.__init__(self, "Trx radio interface") |
| |
| ################################################## |
| # Parameters |
| ################################################## |
| self.delay_correction = delay_correction |
| self.osr = osr |
| self.ppm = ppm |
| self.rx_freq = rx_freq |
| self.rx_gain = rx_gain |
| self.samp_rate = samp_rate |
| self.timing_advance = timing_advance |
| self.trx_base_port = trx_base_port |
| self.trx_remote_addr = trx_remote_addr |
| self.tx_freq = tx_freq |
| self.tx_gain = tx_gain |
| self.uplink_shift = uplink_shift |
| |
| ################################################## |
| # Blocks |
| ################################################## |
| self.uhd_usrp_source_0 = uhd.usrp_source( |
| ",".join(("", "")), |
| uhd.stream_args( |
| cpu_format="fc32", |
| channels=range(1), |
| ), |
| ) |
| self.uhd_usrp_source_0.set_clock_rate(26e6, uhd.ALL_MBOARDS) |
| self.uhd_usrp_source_0.set_samp_rate(samp_rate) |
| self.uhd_usrp_source_0.set_center_freq(rx_freq, 0) |
| self.uhd_usrp_source_0.set_gain(rx_gain, 0) |
| self.uhd_usrp_source_0.set_antenna("RX2", 0) |
| self.uhd_usrp_sink_0 = uhd.usrp_sink( |
| ",".join(("", "")), |
| uhd.stream_args( |
| cpu_format="fc32", |
| channels=range(1), |
| ), |
| "packet_len", |
| ) |
| self.uhd_usrp_sink_0.set_clock_rate(26e6, uhd.ALL_MBOARDS) |
| self.uhd_usrp_sink_0.set_subdev_spec("A:B", 0) |
| self.uhd_usrp_sink_0.set_samp_rate(samp_rate) |
| self.uhd_usrp_sink_0.set_center_freq(tx_freq, 0) |
| self.uhd_usrp_sink_0.set_gain(tx_gain, 0) |
| self.uhd_usrp_sink_0.set_antenna("TX/RX", 0) |
| self.ts_filter = grgsm.burst_timeslot_filter(0) |
| self.low_pass_filter_0_0 = filter.fir_filter_ccf(1, firdes.low_pass( |
| 1, samp_rate, 125e3, 5e3, firdes.WIN_HAMMING, 6.76)) |
| self.gsm_txtime_setter_0 = grgsm.txtime_setter(None if (None is not None) else 0xffffffff, 0, 0, 0, 0, timing_advance, delay_correction+uplink_shift) |
| self.gsm_trx_burst_if_0 = grgsm.trx_burst_if(trx_remote_addr, trx_base_port) |
| self.gsm_receiver_0 = grgsm.receiver(4, ([0]), ([4]), False) |
| self.gsm_preprocess_tx_burst_0 = grgsm.preprocess_tx_burst() |
| self.gsm_msg_to_tag_0_0 = grgsm.msg_to_tag() |
| self.gsm_msg_to_tag_0 = grgsm.msg_to_tag() |
| self.gsm_gmsk_mod_0 = gsm_gmsk_mod( |
| BT=0.3, |
| pulse_duration=4, |
| sps=osr, |
| ) |
| self.gsm_controlled_rotator_cc_0_0 = grgsm.controlled_rotator_cc(-ppm/1.0e6*2*math.pi*tx_freq/samp_rate) |
| self.gsm_controlled_rotator_cc_0 = grgsm.controlled_rotator_cc(ppm/1.0e6*2*math.pi*rx_freq/samp_rate) |
| self.gsm_clock_offset_control_0 = grgsm.clock_offset_control(rx_freq, samp_rate, osr) |
| self.gsm_burst_type_filter_0 = grgsm.burst_type_filter(([3])) |
| self.gsm_burst_to_fn_time_0 = grgsm.burst_to_fn_time() |
| self.digital_burst_shaper_xx_0 = digital.burst_shaper_cc((firdes.window(firdes.WIN_HANN, 16, 0)), 0, 20, False, "packet_len") |
| self.dict_toggle_sign = dict_toggle_sign() |
| self.blocks_pdu_to_tagged_stream_0_0 = blocks.pdu_to_tagged_stream(blocks.byte_t, "packet_len") |
| |
| ################################################## |
| # Connections |
| ################################################## |
| self.msg_connect((self.dict_toggle_sign, 'dict_out'), (self.gsm_msg_to_tag_0_0, 'msg')) |
| self.msg_connect((self.gsm_burst_to_fn_time_0, 'fn_time_out'), (self.gsm_txtime_setter_0, 'fn_time')) |
| self.msg_connect((self.gsm_burst_type_filter_0, 'bursts_out'), (self.gsm_burst_to_fn_time_0, 'bursts_in')) |
| self.msg_connect((self.gsm_clock_offset_control_0, 'ctrl'), (self.dict_toggle_sign, 'dict_in')) |
| self.msg_connect((self.gsm_clock_offset_control_0, 'ctrl'), (self.gsm_msg_to_tag_0, 'msg')) |
| self.msg_connect((self.gsm_preprocess_tx_burst_0, 'bursts_out'), (self.blocks_pdu_to_tagged_stream_0_0, 'pdus')) |
| self.msg_connect((self.gsm_receiver_0, 'C0'), (self.gsm_burst_type_filter_0, 'bursts_in')) |
| self.msg_connect((self.gsm_receiver_0, 'measurements'), (self.gsm_clock_offset_control_0, 'measurements')) |
| self.msg_connect((self.gsm_receiver_0, 'C0'), (self.ts_filter, 'in')) |
| self.msg_connect((self.gsm_trx_burst_if_0, 'bursts'), (self.gsm_txtime_setter_0, 'bursts_in')) |
| self.msg_connect((self.gsm_txtime_setter_0, 'bursts_out'), (self.gsm_preprocess_tx_burst_0, 'bursts_in')) |
| self.msg_connect((self.ts_filter, 'out'), (self.gsm_trx_burst_if_0, 'bursts')) |
| self.connect((self.blocks_pdu_to_tagged_stream_0_0, 0), (self.gsm_gmsk_mod_0, 0)) |
| self.connect((self.digital_burst_shaper_xx_0, 0), (self.gsm_msg_to_tag_0_0, 0)) |
| self.connect((self.gsm_controlled_rotator_cc_0, 0), (self.low_pass_filter_0_0, 0)) |
| self.connect((self.gsm_controlled_rotator_cc_0_0, 0), (self.uhd_usrp_sink_0, 0)) |
| self.connect((self.gsm_gmsk_mod_0, 0), (self.digital_burst_shaper_xx_0, 0)) |
| self.connect((self.gsm_msg_to_tag_0, 0), (self.gsm_controlled_rotator_cc_0, 0)) |
| self.connect((self.gsm_msg_to_tag_0_0, 0), (self.gsm_controlled_rotator_cc_0_0, 0)) |
| self.connect((self.low_pass_filter_0_0, 0), (self.gsm_receiver_0, 0)) |
| self.connect((self.uhd_usrp_source_0, 0), (self.gsm_msg_to_tag_0, 0)) |
| |
| def get_delay_correction(self): |
| return self.delay_correction |
| |
| def set_delay_correction(self, delay_correction): |
| self.delay_correction = delay_correction |
| self.gsm_txtime_setter_0.set_delay_correction(self.delay_correction+self.uplink_shift) |
| |
| def get_osr(self): |
| return self.osr |
| |
| def set_osr(self, osr): |
| self.osr = osr |
| self.gsm_gmsk_mod_0.set_sps(self.osr) |
| |
| def get_ppm(self): |
| return self.ppm |
| |
| def set_ppm(self, ppm): |
| self.ppm = ppm |
| self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.rx_freq/self.samp_rate) |
| self.gsm_controlled_rotator_cc_0_0.set_phase_inc(-self.ppm/1.0e6*2*math.pi*self.tx_freq/self.samp_rate) |
| |
| def get_rx_freq(self): |
| return self.rx_freq |
| |
| def set_rx_freq(self, rx_freq): |
| self.rx_freq = rx_freq |
| self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.rx_freq/self.samp_rate) |
| self.uhd_usrp_source_0.set_center_freq(self.rx_freq, 0) |
| |
| def get_rx_gain(self): |
| return self.rx_gain |
| |
| def set_rx_gain(self, rx_gain): |
| self.rx_gain = rx_gain |
| self.uhd_usrp_source_0.set_gain(self.rx_gain, 0) |
| |
| |
| def get_samp_rate(self): |
| return self.samp_rate |
| |
| def set_samp_rate(self, samp_rate): |
| self.samp_rate = samp_rate |
| self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.rx_freq/self.samp_rate) |
| self.gsm_controlled_rotator_cc_0_0.set_phase_inc(-self.ppm/1.0e6*2*math.pi*self.tx_freq/self.samp_rate) |
| self.low_pass_filter_0_0.set_taps(firdes.low_pass(1, self.samp_rate, 125e3, 5e3, firdes.WIN_HAMMING, 6.76)) |
| self.uhd_usrp_sink_0.set_samp_rate(self.samp_rate) |
| self.uhd_usrp_source_0.set_samp_rate(self.samp_rate) |
| |
| def get_timing_advance(self): |
| return self.timing_advance |
| |
| def set_timing_advance(self, timing_advance): |
| self.timing_advance = timing_advance |
| self.gsm_txtime_setter_0.set_timing_advance(self.timing_advance) |
| |
| def get_trx_base_port(self): |
| return self.trx_base_port |
| |
| def set_trx_base_port(self, trx_base_port): |
| self.trx_base_port = trx_base_port |
| |
| def get_trx_remote_addr(self): |
| return self.trx_remote_addr |
| |
| def set_trx_remote_addr(self, trx_remote_addr): |
| self.trx_remote_addr = trx_remote_addr |
| |
| def get_tx_freq(self): |
| return self.tx_freq |
| |
| def set_tx_freq(self, tx_freq): |
| self.tx_freq = tx_freq |
| self.gsm_controlled_rotator_cc_0_0.set_phase_inc(-self.ppm/1.0e6*2*math.pi*self.tx_freq/self.samp_rate) |
| self.uhd_usrp_sink_0.set_center_freq(self.tx_freq, 0) |
| |
| def get_tx_gain(self): |
| return self.tx_gain |
| |
| def set_tx_gain(self, tx_gain): |
| self.tx_gain = tx_gain |
| self.uhd_usrp_sink_0.set_gain(self.tx_gain, 0) |
| |
| |
| def get_uplink_shift(self): |
| return self.uplink_shift |
| |
| def set_uplink_shift(self, uplink_shift): |
| self.uplink_shift = uplink_shift |
| self.gsm_txtime_setter_0.set_delay_correction(self.delay_correction+self.uplink_shift) |
| |
| |
| def argument_parser(): |
| parser = OptionParser(option_class=eng_option, usage="%prog: [options]") |
| parser.add_option( |
| "", "--delay-correction", dest="delay_correction", type="eng_float", default=eng_notation.num_to_str(285.616e-6), |
| help="Set delay_correction [default=%default]") |
| parser.add_option( |
| "", "--osr", dest="osr", type="intx", default=4, |
| help="Set OSR [default=%default]") |
| parser.add_option( |
| "", "--ppm", dest="ppm", type="eng_float", default=eng_notation.num_to_str(-0.799427), |
| help="Set Clock offset correction [default=%default]") |
| parser.add_option( |
| "-d", "--rx-freq", dest="rx_freq", type="eng_float", default=eng_notation.num_to_str(935e6+36*0.2e6), |
| help="Set rx_freq [default=%default]") |
| parser.add_option( |
| "-g", "--rx-gain", dest="rx_gain", type="eng_float", default=eng_notation.num_to_str(40), |
| help="Set rx_gain [default=%default]") |
| parser.add_option( |
| "", "--samp-rate", dest="samp_rate", type="eng_float", default=eng_notation.num_to_str(13e6/12.0), |
| help="Set samp_rate [default=%default]") |
| parser.add_option( |
| "", "--timing-advance", dest="timing_advance", type="eng_float", default=eng_notation.num_to_str(0), |
| help="Set timing_advance [default=%default]") |
| parser.add_option( |
| "", "--trx-base-port", dest="trx_base_port", type="string", default="5710", |
| help="Set 5710 [default=%default]") |
| parser.add_option( |
| "", "--trx-remote-addr", dest="trx_remote_addr", type="string", default="127.0.0.1", |
| help="Set 127.0.0.1 [default=%default]") |
| parser.add_option( |
| "-u", "--tx-freq", dest="tx_freq", type="eng_float", default=eng_notation.num_to_str(935e6+36*0.2e6-45e6), |
| help="Set tx_freq [default=%default]") |
| parser.add_option( |
| "-r", "--tx-gain", dest="tx_gain", type="eng_float", default=eng_notation.num_to_str(40), |
| help="Set tx_gain [default=%default]") |
| parser.add_option( |
| "", "--uplink-shift", dest="uplink_shift", type="eng_float", default=eng_notation.num_to_str(-(6.0/1625000*(156.25)*3)), |
| help="Set uplink_shift [default=%default]") |
| return parser |
| |
| |
| def main(top_block_cls=radio_if_grc, options=None): |
| if options is None: |
| options, _ = argument_parser().parse_args() |
| |
| tb = top_block_cls(delay_correction=options.delay_correction, osr=options.osr, ppm=options.ppm, rx_freq=options.rx_freq, rx_gain=options.rx_gain, samp_rate=options.samp_rate, timing_advance=options.timing_advance, trx_base_port=options.trx_base_port, trx_remote_addr=options.trx_remote_addr, tx_freq=options.tx_freq, tx_gain=options.tx_gain, uplink_shift=options.uplink_shift) |
| tb.start() |
| tb.wait() |
| |
| |
| if __name__ == '__main__': |
| main() |