259 lines
9.3 KiB
Python
Executable File
259 lines
9.3 KiB
Python
Executable File
#!/usr/bin/env python2
|
|
# -*- coding: utf-8 -*-
|
|
##################################################
|
|
# GNU Radio Python Flow Graph
|
|
# Title: UHD Wide-band FM Modulator
|
|
# Author: Example
|
|
# Description: Loopback test
|
|
# Generated: Sat Jul 13 12:16:01 2019
|
|
##################################################
|
|
|
|
from distutils.version import StrictVersion
|
|
|
|
if __name__ == '__main__':
|
|
import ctypes
|
|
import sys
|
|
if sys.platform.startswith('linux'):
|
|
try:
|
|
x11 = ctypes.cdll.LoadLibrary('libX11.so')
|
|
x11.XInitThreads()
|
|
except:
|
|
print "Warning: failed to XInitThreads()"
|
|
|
|
from PyQt5 import Qt, QtCore
|
|
from gnuradio import analog
|
|
from gnuradio import blocks
|
|
from gnuradio import eng_notation
|
|
from gnuradio import gr
|
|
from gnuradio import uhd
|
|
from gnuradio.eng_option import eng_option
|
|
from gnuradio.filter import firdes
|
|
from gnuradio.qtgui import Range, RangeWidget
|
|
from optparse import OptionParser
|
|
import sys
|
|
import time
|
|
from gnuradio import qtgui
|
|
|
|
|
|
class fm_mod_uhd(gr.top_block, Qt.QWidget):
|
|
|
|
def __init__(self, audio_rate=50000, freq=2.45e9, freq_offset=0, samp_rate=500e3):
|
|
gr.top_block.__init__(self, "UHD Wide-band FM Modulator")
|
|
Qt.QWidget.__init__(self)
|
|
self.setWindowTitle("UHD Wide-band FM Modulator")
|
|
qtgui.util.check_set_qss()
|
|
try:
|
|
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
|
|
except:
|
|
pass
|
|
self.top_scroll_layout = Qt.QVBoxLayout()
|
|
self.setLayout(self.top_scroll_layout)
|
|
self.top_scroll = Qt.QScrollArea()
|
|
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
|
|
self.top_scroll_layout.addWidget(self.top_scroll)
|
|
self.top_scroll.setWidgetResizable(True)
|
|
self.top_widget = Qt.QWidget()
|
|
self.top_scroll.setWidget(self.top_widget)
|
|
self.top_layout = Qt.QVBoxLayout(self.top_widget)
|
|
self.top_grid_layout = Qt.QGridLayout()
|
|
self.top_layout.addLayout(self.top_grid_layout)
|
|
|
|
self.settings = Qt.QSettings("GNU Radio", "fm_mod_uhd")
|
|
self.restoreGeometry(self.settings.value("geometry", type=QtCore.QByteArray))
|
|
|
|
|
|
##################################################
|
|
# Parameters
|
|
##################################################
|
|
self.audio_rate = audio_rate
|
|
self.freq = freq
|
|
self.freq_offset = freq_offset
|
|
self.samp_rate = samp_rate
|
|
|
|
##################################################
|
|
# Variables
|
|
##################################################
|
|
self.tun_tx_gain = tun_tx_gain = 20
|
|
self.tun_freq = tun_freq = 105.4e6
|
|
self.tone_ampl = tone_ampl = 0.15
|
|
self.tone2 = tone2 = 220
|
|
self.tone1 = tone1 = 440
|
|
|
|
##################################################
|
|
# Blocks
|
|
##################################################
|
|
self._tun_tx_gain_range = Range(0, 40, 1, 20, 200)
|
|
self._tun_tx_gain_win = RangeWidget(self._tun_tx_gain_range, self.set_tun_tx_gain, 'UHD Tx Gain', "counter_slider", float)
|
|
self.top_grid_layout.addWidget(self._tun_tx_gain_win, 4, 0, 1, 2)
|
|
for r in range(4, 5):
|
|
self.top_grid_layout.setRowStretch(r, 1)
|
|
for c in range(0, 2):
|
|
self.top_grid_layout.setColumnStretch(c, 1)
|
|
self._tun_freq_range = Range(88.5e6, 108e6, 0.5e6, 105.4e6, 200)
|
|
self._tun_freq_win = RangeWidget(self._tun_freq_range, self.set_tun_freq, 'UHD Freq (Hz)', "counter_slider", float)
|
|
self.top_grid_layout.addWidget(self._tun_freq_win, 3, 0, 1, 4)
|
|
for r in range(3, 4):
|
|
self.top_grid_layout.setRowStretch(r, 1)
|
|
for c in range(0, 4):
|
|
self.top_grid_layout.setColumnStretch(c, 1)
|
|
self._tone_ampl_range = Range(0, 1, .001, 0.15, 200)
|
|
self._tone_ampl_win = RangeWidget(self._tone_ampl_range, self.set_tone_ampl, 'Tone Amplitude', "counter_slider", float)
|
|
self.top_grid_layout.addWidget(self._tone_ampl_win, 1, 2, 1, 2)
|
|
for r in range(1, 2):
|
|
self.top_grid_layout.setRowStretch(r, 1)
|
|
for c in range(2, 4):
|
|
self.top_grid_layout.setColumnStretch(c, 1)
|
|
self._tone2_range = Range(0, 880, 1, 220, 200)
|
|
self._tone2_win = RangeWidget(self._tone2_range, self.set_tone2, 'Tone 2', "counter_slider", float)
|
|
self.top_grid_layout.addWidget(self._tone2_win, 0, 2, 1, 2)
|
|
for r in range(0, 1):
|
|
self.top_grid_layout.setRowStretch(r, 1)
|
|
for c in range(2, 4):
|
|
self.top_grid_layout.setColumnStretch(c, 1)
|
|
self._tone1_range = Range(0, 880, 1, 440, 200)
|
|
self._tone1_win = RangeWidget(self._tone1_range, self.set_tone1, 'Tone 1', "counter_slider", float)
|
|
self.top_grid_layout.addWidget(self._tone1_win, 0, 0, 1, 2)
|
|
for r in range(0, 1):
|
|
self.top_grid_layout.setRowStretch(r, 1)
|
|
for c in range(0, 2):
|
|
self.top_grid_layout.setColumnStretch(c, 1)
|
|
self.uhd_usrp_sink_0 = uhd.usrp_sink(
|
|
",".join(("", "")),
|
|
uhd.stream_args(
|
|
cpu_format="fc32",
|
|
channels=range(1),
|
|
),
|
|
)
|
|
self.uhd_usrp_sink_0.set_samp_rate(samp_rate)
|
|
self.uhd_usrp_sink_0.set_center_freq(tun_freq, 0)
|
|
self.uhd_usrp_sink_0.set_gain(tun_tx_gain, 0)
|
|
self.uhd_usrp_sink_0.set_antenna('TX/RX', 0)
|
|
self.blocks_add_xx = blocks.add_vff(1)
|
|
self.analog_wfm_tx_0 = analog.wfm_tx(
|
|
audio_rate=audio_rate,
|
|
quad_rate=int(samp_rate),
|
|
tau=75e-6,
|
|
max_dev=75e3,
|
|
fh=-1.0,
|
|
)
|
|
self.analog_sig_source_x_1 = analog.sig_source_f(audio_rate, analog.GR_COS_WAVE, tone2, tone_ampl, 0)
|
|
self.analog_sig_source_x_0 = analog.sig_source_f(audio_rate, analog.GR_COS_WAVE, tone1, tone_ampl, 0)
|
|
|
|
|
|
|
|
##################################################
|
|
# Connections
|
|
##################################################
|
|
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_add_xx, 0))
|
|
self.connect((self.analog_sig_source_x_1, 0), (self.blocks_add_xx, 1))
|
|
self.connect((self.analog_wfm_tx_0, 0), (self.uhd_usrp_sink_0, 0))
|
|
self.connect((self.blocks_add_xx, 0), (self.analog_wfm_tx_0, 0))
|
|
|
|
def closeEvent(self, event):
|
|
self.settings = Qt.QSettings("GNU Radio", "fm_mod_uhd")
|
|
self.settings.setValue("geometry", self.saveGeometry())
|
|
event.accept()
|
|
|
|
def get_audio_rate(self):
|
|
return self.audio_rate
|
|
|
|
def set_audio_rate(self, audio_rate):
|
|
self.audio_rate = audio_rate
|
|
self.analog_sig_source_x_1.set_sampling_freq(self.audio_rate)
|
|
self.analog_sig_source_x_0.set_sampling_freq(self.audio_rate)
|
|
|
|
def get_freq(self):
|
|
return self.freq
|
|
|
|
def set_freq(self, freq):
|
|
self.freq = freq
|
|
|
|
def get_freq_offset(self):
|
|
return self.freq_offset
|
|
|
|
def set_freq_offset(self, freq_offset):
|
|
self.freq_offset = freq_offset
|
|
|
|
def get_samp_rate(self):
|
|
return self.samp_rate
|
|
|
|
def set_samp_rate(self, samp_rate):
|
|
self.samp_rate = samp_rate
|
|
self.uhd_usrp_sink_0.set_samp_rate(self.samp_rate)
|
|
|
|
def get_tun_tx_gain(self):
|
|
return self.tun_tx_gain
|
|
|
|
def set_tun_tx_gain(self, tun_tx_gain):
|
|
self.tun_tx_gain = tun_tx_gain
|
|
self.uhd_usrp_sink_0.set_gain(self.tun_tx_gain, 0)
|
|
|
|
|
|
def get_tun_freq(self):
|
|
return self.tun_freq
|
|
|
|
def set_tun_freq(self, tun_freq):
|
|
self.tun_freq = tun_freq
|
|
self.uhd_usrp_sink_0.set_center_freq(self.tun_freq, 0)
|
|
|
|
def get_tone_ampl(self):
|
|
return self.tone_ampl
|
|
|
|
def set_tone_ampl(self, tone_ampl):
|
|
self.tone_ampl = tone_ampl
|
|
self.analog_sig_source_x_1.set_amplitude(self.tone_ampl)
|
|
self.analog_sig_source_x_0.set_amplitude(self.tone_ampl)
|
|
|
|
def get_tone2(self):
|
|
return self.tone2
|
|
|
|
def set_tone2(self, tone2):
|
|
self.tone2 = tone2
|
|
self.analog_sig_source_x_1.set_frequency(self.tone2)
|
|
|
|
def get_tone1(self):
|
|
return self.tone1
|
|
|
|
def set_tone1(self, tone1):
|
|
self.tone1 = tone1
|
|
self.analog_sig_source_x_0.set_frequency(self.tone1)
|
|
|
|
|
|
def argument_parser():
|
|
description = 'Loopback test'
|
|
parser = OptionParser(usage="%prog: [options]", option_class=eng_option, description=description)
|
|
parser.add_option(
|
|
"", "--audio-rate", dest="audio_rate", type="intx", default=50000,
|
|
help="Set Audio Rate [default=%default]")
|
|
parser.add_option(
|
|
"-f", "--freq", dest="freq", type="eng_float", default=eng_notation.num_to_str(2.45e9),
|
|
help="Set Default Frequency [default=%default]")
|
|
parser.add_option(
|
|
"-o", "--freq-offset", dest="freq_offset", type="eng_float", default=eng_notation.num_to_str(0),
|
|
help="Set Rx Frequency Offset [default=%default]")
|
|
parser.add_option(
|
|
"", "--samp-rate", dest="samp_rate", type="eng_float", default=eng_notation.num_to_str(500e3),
|
|
help="Set Sample Rate [default=%default]")
|
|
return parser
|
|
|
|
|
|
def main(top_block_cls=fm_mod_uhd, options=None):
|
|
if options is None:
|
|
options, _ = argument_parser().parse_args()
|
|
|
|
qapp = Qt.QApplication(sys.argv)
|
|
|
|
tb = top_block_cls(audio_rate=options.audio_rate, freq=options.freq, freq_offset=options.freq_offset, samp_rate=options.samp_rate)
|
|
tb.start()
|
|
tb.show()
|
|
|
|
def quitting():
|
|
tb.stop()
|
|
tb.wait()
|
|
qapp.aboutToQuit.connect(quitting)
|
|
qapp.exec_()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|