| # -*- coding: utf-8 -*- |
| ################################################## |
| # GNU Radio Python Flow Graph |
| # Title: Clock Offset Corrector Tagged |
| # Author: Piotr Krysik |
| # Description: Clock offset corrector with blocks that use tags to switch offsets |
| # Generated: Sun Jul 17 22:03:13 2016 |
| ################################################## |
| |
| from gnuradio import gr |
| from gnuradio.filter import firdes |
| import grgsm |
| import math |
| |
| |
| class clock_offset_corrector_tagged(grgsm.hier_block): |
| |
| def __init__(self, fc=936.6e6, osr=4, ppm=0, samp_rate_in=1625000.0/6.0*4.0): |
| gr.hier_block2.__init__( |
| self, "Clock Offset Corrector Tagged", |
| gr.io_signature(1, 1, gr.sizeof_gr_complex*1), |
| gr.io_signature(1, 1, gr.sizeof_gr_complex*1), |
| ) |
| self.message_port_register_hier_in("ctrl") |
| |
| ################################################## |
| # Parameters |
| ################################################## |
| self.fc = fc |
| self.osr = osr |
| self.ppm = ppm |
| self.samp_rate_in = samp_rate_in |
| |
| ################################################## |
| # Variables |
| ################################################## |
| self.gsm_symb_rate = gsm_symb_rate = 1625000.0/6.0 |
| self.samp_rate_out = samp_rate_out = osr*gsm_symb_rate |
| |
| ################################################## |
| # Blocks |
| ################################################## |
| self.gsm_msg_to_tag_0 = grgsm.msg_to_tag() |
| self.gsm_controlled_rotator_cc_0 = grgsm.controlled_rotator_cc(ppm/1.0e6*2*math.pi*fc/samp_rate_out) |
| self.gsm_controlled_fractional_resampler_cc_0 = grgsm.controlled_fractional_resampler_cc(0, samp_rate_in/samp_rate_out) |
| |
| ################################################## |
| # Connections |
| ################################################## |
| self.msg_connect((self, 'ctrl'), (self.gsm_msg_to_tag_0, 'msg')) |
| self.connect((self.gsm_controlled_fractional_resampler_cc_0, 0), (self.gsm_controlled_rotator_cc_0, 0)) |
| self.connect((self.gsm_controlled_rotator_cc_0, 0), (self, 0)) |
| self.connect((self.gsm_msg_to_tag_0, 0), (self.gsm_controlled_fractional_resampler_cc_0, 0)) |
| self.connect((self, 0), (self.gsm_msg_to_tag_0, 0)) |
| |
| def get_fc(self): |
| return self.fc |
| |
| def set_fc(self, fc): |
| self.fc = fc |
| self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.fc/self.samp_rate_out) |
| |
| def get_osr(self): |
| return self.osr |
| |
| def set_osr(self, osr): |
| self.osr = osr |
| self.set_samp_rate_out(self.osr*self.gsm_symb_rate) |
| |
| 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.fc/self.samp_rate_out) |
| |
| def get_samp_rate_in(self): |
| return self.samp_rate_in |
| |
| def set_samp_rate_in(self, samp_rate_in): |
| self.samp_rate_in = samp_rate_in |
| self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio(self.samp_rate_in/self.samp_rate_out) |
| |
| def get_gsm_symb_rate(self): |
| return self.gsm_symb_rate |
| |
| def set_gsm_symb_rate(self, gsm_symb_rate): |
| self.gsm_symb_rate = gsm_symb_rate |
| self.set_samp_rate_out(self.osr*self.gsm_symb_rate) |
| |
| def get_samp_rate_out(self): |
| return self.samp_rate_out |
| |
| def set_samp_rate_out(self, samp_rate_out): |
| self.samp_rate_out = samp_rate_out |
| self.gsm_controlled_fractional_resampler_cc_0.set_resamp_ratio(self.samp_rate_in/self.samp_rate_out) |
| self.gsm_controlled_rotator_cc_0.set_phase_inc(self.ppm/1.0e6*2*math.pi*self.fc/self.samp_rate_out) |