70 lines
2.0 KiB
Python
70 lines
2.0 KiB
Python
#!/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)
|