#!/usr/bin/env python2 # -*- coding: utf-8 -*- ################################################## # GNU Radio Python Flow Graph # Title: Top Block # GNU Radio version: 3.7.13.5 ################################################## 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 gnuradio import analog from gnuradio import audio from gnuradio import blocks from gnuradio import eng_notation from gnuradio import filter from gnuradio import gr from gnuradio import wxgui from gnuradio.eng_option import eng_option from gnuradio.fft import window from gnuradio.filter import firdes from gnuradio.wxgui import fftsink2 from gnuradio.wxgui import forms from grc_gnuradio import wxgui as grc_wxgui from optparse import OptionParser import sdrplay import wx class top_block(grc_wxgui.top_block_gui): def __init__(self): grc_wxgui.top_block_gui.__init__(self, title="Top Block") _icon_path = "C:\Program Files\GNURadio-3.7\share\icons\hicolor\scalable/apps\gnuradio-grc.png" self.SetIcon(wx.Icon(_icon_path, wx.BITMAP_TYPE_ANY)) ################################################## # Variables ################################################## self.volume = volume = 0.5 self.transition = transition = 1e6 self.samp_rate = samp_rate = 2e6 self.quadrature = quadrature = 500e3 self.freq = freq = 89.1e6 self.cutoff = cutoff = 100e3 self.audio_dec = audio_dec = 10 ################################################## # Blocks ################################################## _volume_sizer = wx.BoxSizer(wx.VERTICAL) self._volume_text_box = forms.text_box( parent=self.GetWin(), sizer=_volume_sizer, value=self.volume, callback=self.set_volume, label='Volume', converter=forms.float_converter(), proportion=0, ) self._volume_slider = forms.slider( parent=self.GetWin(), sizer=_volume_sizer, value=self.volume, callback=self.set_volume, minimum=0, maximum=1, num_steps=100, style=wx.SL_HORIZONTAL, cast=float, proportion=1, ) self.Add(_volume_sizer) self._freq_text_box = forms.text_box( parent=self.GetWin(), value=self.freq, callback=self.set_freq, label='Frequency', converter=forms.float_converter(), ) self.Add(self._freq_text_box) self.wxgui_fftsink2_0 = fftsink2.fft_sink_c( self.GetWin(), baseband_freq=0, y_per_div=10, y_divs=10, ref_level=0, ref_scale=2.0, sample_rate=samp_rate, fft_size=1024, fft_rate=15, average=False, avg_alpha=None, title='FFT Plot', peak_hold=False, ) self.Add(self.wxgui_fftsink2_0.win) self.sdrplay_rspduo_source_0 = sdrplay.rspduo_source(freq, 1536, True, 40, True, True, False, 0, 1, samp_rate, False, False, 0, False, '0', 'T1_50ohm') self.rational_resampler_xxx_0_0 = filter.rational_resampler_fff( interpolation=48, decimation=50, taps=None, fractional_bw=None, ) self.rational_resampler_xxx_0 = filter.rational_resampler_ccc( interpolation=1, decimation=4, taps=None, fractional_bw=None, ) self.low_pass_filter_0 = filter.fir_filter_ccf(1, firdes.low_pass( 1, samp_rate, cutoff, transition, firdes.WIN_HAMMING, 6.76)) self.blocks_multiply_const_vxx_0 = blocks.multiply_const_vff((volume, )) self.audio_sink_0 = audio.sink(48000, '', True) self.analog_wfm_rcv_0 = analog.wfm_rcv( quad_rate=quadrature, audio_decimation=audio_dec, ) ################################################## # Connections ################################################## self.connect((self.analog_wfm_rcv_0, 0), (self.rational_resampler_xxx_0_0, 0)) self.connect((self.blocks_multiply_const_vxx_0, 0), (self.audio_sink_0, 0)) self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0)) self.connect((self.rational_resampler_xxx_0, 0), (self.low_pass_filter_0, 0)) self.connect((self.rational_resampler_xxx_0_0, 0), (self.blocks_multiply_const_vxx_0, 0)) self.connect((self.sdrplay_rspduo_source_0, 0), (self.rational_resampler_xxx_0, 0)) self.connect((self.sdrplay_rspduo_source_0, 0), (self.wxgui_fftsink2_0, 0)) def get_volume(self): return self.volume def set_volume(self, volume): self.volume = volume self._volume_slider.set_value(self.volume) self._volume_text_box.set_value(self.volume) self.blocks_multiply_const_vxx_0.set_k((self.volume, )) def get_transition(self): return self.transition def set_transition(self, transition): self.transition = transition self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, self.cutoff, self.transition, firdes.WIN_HAMMING, 6.76)) def get_samp_rate(self): return self.samp_rate def set_samp_rate(self, samp_rate): self.samp_rate = samp_rate self.wxgui_fftsink2_0.set_sample_rate(self.samp_rate) self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, self.cutoff, self.transition, firdes.WIN_HAMMING, 6.76)) def get_quadrature(self): return self.quadrature def set_quadrature(self, quadrature): self.quadrature = quadrature def get_freq(self): return self.freq def set_freq(self, freq): self.freq = freq self._freq_text_box.set_value(self.freq) self.sdrplay_rspduo_source_0.set_rf_freq(self.freq) def get_cutoff(self): return self.cutoff def set_cutoff(self, cutoff): self.cutoff = cutoff self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, self.cutoff, self.transition, firdes.WIN_HAMMING, 6.76)) def get_audio_dec(self): return self.audio_dec def set_audio_dec(self, audio_dec): self.audio_dec = audio_dec def main(top_block_cls=top_block, options=None): tb = top_block_cls() tb.Start(True) tb.Wait() if __name__ == '__main__': main()