| #!/usr/bin/env python2 |
| # -*- coding: utf-8 -*- |
| |
| # GR-GSM based transceiver |
| # Radio interface for Lime devices |
| # |
| # (C) 2019 by Vadim Yanitskiy <axilirator@gmail.com> |
| # |
| # All Rights Reserved |
| # |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 2 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License along |
| # with this program; if not, write to the Free Software Foundation, Inc., |
| # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| |
| import limesdr |
| |
| from radio_if import RadioInterface |
| |
| class RadioInterfaceLMS(RadioInterface): |
| lms_len_tag_name = "packet_len" |
| lms_dev_serial = "" |
| lms_dev_ch_mode = 1 |
| |
| # Human-readable description |
| def __str__(self): |
| return "LMS" |
| |
| @property # Signal processing delay of PHY |
| def phy_proc_delay(self): |
| # FIXME: the current value is measured for USRP B2X0 at 26e6, |
| # we should measure it for LimeSDR separately! |
| return (285.616 + 2 * self.GSM_SYM_PERIOD_uS) * 1e-6 |
| |
| def phy_init_source(self): |
| self._phy_src = limesdr.source(self.lms_dev_serial, |
| self.lms_dev_ch_mode, "") |
| |
| self._phy_src.set_sample_rate(self.sample_rate) |
| self._phy_src.set_gain(self.rx_gain, 0) |
| |
| def phy_init_sink(self): |
| self._phy_sink = limesdr.sink(self.lms_dev_serial, |
| self.lms_dev_ch_mode, "", |
| self.lms_len_tag_name) |
| |
| self._phy_sink.set_sample_rate(self.sample_rate) |
| self._phy_sink.set_gain(self.tx_gain, 0) |
| |
| def phy_set_rx_freq(self, freq): |
| self._phy_src.set_center_freq(freq, 0) |
| |
| def phy_set_tx_freq(self, freq): |
| self._phy_sink.set_center_freq(freq, 0) |
| |
| def phy_set_rx_gain(self, gain): |
| self._phy_src.set_gain(gain, 0) |
| |
| def phy_set_tx_gain(self, gain): |
| self._phy_sink.set_gain(gain, 0) |