diff options
author | Piotr Krysik <ptrkrysik@gmail.com> | 2017-11-30 12:50:00 +0100 |
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committer | Piotr Krysik <ptrkrysik@gmail.com> | 2017-11-30 12:50:00 +0100 |
commit | d2f162fa5eab5cfdf4332101b4a55aaac6d96290 (patch) | |
tree | 247ec576e23b144eeb32629ce922b449bd4cc40f /python/trx/radio_if_grc.py | |
parent | ccd9ed9cab560590f2ec4af41abdbf2d28c094f7 (diff) |
trx: Changes in the redio_if
-added a part generated by GRC (radio_if_grc) form trx_radio_if example,
-radio_if now only adds things that are missing in radio_if_grc
Diffstat (limited to 'python/trx/radio_if_grc.py')
-rwxr-xr-x | python/trx/radio_if_grc.py | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/python/trx/radio_if_grc.py b/python/trx/radio_if_grc.py new file mode 100755 index 0000000..26c1f22 --- /dev/null +++ b/python/trx/radio_if_grc.py @@ -0,0 +1,259 @@ +#!/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: Thu Nov 30 12:45:52 2017 +################################################## + +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=-1, rx_freq=938600000, rx_gain=40, samp_rate=13e6/12.0, timing_advance=0, trx_base_port="5700", trx_remote_addr="127.0.0.1", tx_freq=938900000, tx_gain=30, 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.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_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.blocks_pdu_to_tagged_stream_0_0 = blocks.pdu_to_tagged_stream(blocks.byte_t, "packet_len") + + ################################################## + # Connections + ################################################## + 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_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, 'C0'), (self.gsm_trx_burst_if_0, 'bursts')) + 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.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(-1), + 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(938600000), + 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="5700", + help="Set 5700 [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(938900000), + help="Set tx_freq [default=%default]") + parser.add_option( + "-r", "--tx-gain", dest="tx_gain", type="eng_float", default=eng_notation.num_to_str(30), + 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() |