#!/usr/bin/env python # -*- coding: UTF-8 -*- # generated by wxGlade 0.3.5.1 on Fri Jun 10 10:32:01 2005 from gnuradio import gr, gru, eng_notation, optfir from gnuradio import audio from gnuradio import usrp from gnuradio import blks from gnuradio import tv_rx from gnuradio.eng_option import eng_option from gnuradio.wxgui import slider, powermate from gnuradio.wxgui import stdgui, fftsink from optparse import OptionParser import sys import math import wx ID_EXIT = wx.NewId() ID_SLIDER_1 = wx.NewId() ID_RADIO_FREQ = wx.NewId() ID_RADIO_VOL = wx.NewId() ID_GAUGE_1 = wx.NewId() ID_SLIDER_1 = wx.NewId() class MyFrame(wx.Frame): def __init__(self, *args, **kwds): # begin wxGlade: MyFrame.__init__ kwds["style"] = wx.DEFAULT_FRAME_STYLE wx.Frame.__init__(self, *args, **kwds) # Menu Bar self.frame_1_menubar = wx.MenuBar() self.SetMenuBar(self.frame_1_menubar) wxglade_tmp_menu = wx.Menu() wxglade_tmp_menu.Append(ID_EXIT, "Exit", "Exit", wx.ITEM_NORMAL) self.frame_1_menubar.Append(wxglade_tmp_menu, "File") # Menu Bar end self.panel_1 = wx.Panel(self, -1) self.label_2 = wx.StaticText(self, -1, "Frequency") self.bitmap_1 = wx.StaticBitmap(self, -1, wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/0.bmp", wx.BITMAP_TYPE_ANY)) self.bitmap_2 = wx.StaticBitmap(self, -1, wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/9.bmp", wx.BITMAP_TYPE_ANY)) self.bitmap_3 = wx.StaticBitmap(self, -1, wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/4.bmp", wx.BITMAP_TYPE_ANY)) self.bitmap_4 = wx.StaticBitmap(self, -1, wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/5.bmp", wx.BITMAP_TYPE_ANY)) self.radio_btn_1 = wx.RadioButton(self, -1, "frequency", style=wx.RB_GROUP) self.label_3 = wx.StaticText(self, -1, "Volume") self.gauge_1 = wx.Gauge(self, -1, 200) self.radio_btn_2 = wx.RadioButton(self, -1, "volume") self.label_1 = wx.StaticText(self, -1, " RF Gain ") self.slider_1 = wx.Slider(self, ID_SLIDER_1, 0, 0, 115) # end wxGlade # wxpython gui events wx.EVT_MENU(self, ID_EXIT, self.MenuExit) wx.EVT_SLIDER(self, ID_SLIDER_1, self.set_gain) wx.EVT_RADIOBUTTON(self, ID_RADIO_FREQ, self.radio_button) wx.EVT_RADIOBUTTON(self, ID_RADIO_VOL, self.radio_button) # load pretty green numerals self.n0 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/0.bmp", wx.BITMAP_TYPE_ANY) self.n1 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/1.bmp", wx.BITMAP_TYPE_ANY) self.n2 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/2.bmp", wx.BITMAP_TYPE_ANY) self.n3 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/3.bmp", wx.BITMAP_TYPE_ANY) self.n4 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/4.bmp", wx.BITMAP_TYPE_ANY) self.n5 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/5.bmp", wx.BITMAP_TYPE_ANY) self.n6 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/6.bmp", wx.BITMAP_TYPE_ANY) self.n7 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/7.bmp", wx.BITMAP_TYPE_ANY) self.n8 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/8.bmp", wx.BITMAP_TYPE_ANY) self.n9 = wx.Bitmap("/usr/src/radio/wx/numerals/fancydigitalgreen/9.bmp", wx.BITMAP_TYPE_ANY) # radio from tvrx_wfm_rcv_gui_pm.py self.fg = gr.flow_graph() self.vol = .1 self.state = "FREQ" adc_rate = 64e6 usrp_decim = 100 usrp_rate = adc_rate / usrp_decim # 640 kS/s chanfilt_decim = 2 demod_rate = usrp_rate / chanfilt_decim audio_decimation = 10 audio_rate = demod_rate / audio_decimation # 32 kHz # usrp is data source src = usrp.source_c (0, usrp_decim) self.src = src dboards = (src.daughterboard_id(0),src.daughterboard_id(1)) print dboards if dboards[0]==3: if dboards[1]==3: print "Which side?" sys.exit(0) else: which_side = 0 which_type = 3 elif dboards[1]==3: which_side = 1 which_type = 3 elif dboards[0]==1: if dboards[1]==1: print "Which side?" sys.exit(0) else: which_side = 0 which_type = 1 elif dboards[1]==1: which_side = 1 which_type = 1 else: print "No usable daughterboard found" sys.exit(0) if which_type == 3: dboard = tv_rx.tv_rx (src, which_side) self.dboard = dboard if which_side == 0: src.set_mux(gru.hexint(0xf0f0f0f0)) else: src.set_mux(gru.hexint(0xf0f0f0f2)) # set up frontend self.set_freq(94.5) chan_filt_coeffs = optfir.low_pass (1, # gain usrp_rate, # sampling rate 80e3, # passband cutoff 115e3, # stopband cutoff 0.1, # passband ripple 60) # stopband attenuation print len(chan_filt_coeffs) chan_filt = gr.fir_filter_ccf (chanfilt_decim,chan_filt_coeffs) # guts = blks.wfm_rcv (self, demod_rate, audio_decimation) quad_rate = demod_rate volume = 20. max_dev = 75e3 fm_demod_gain = quad_rate/(2*math.pi*max_dev) audio_rate = quad_rate / audio_decimation # We assign to self so that outsiders can grab the demodulator # if they need to. E.g., to plot its output. # # input: complex; output: float self.fm_demod = gr.quadrature_demod_cf (fm_demod_gain) # input: float; output: float fs = demod_rate tau=75e-6 w_p = 1/tau w_pp = math.tan (w_p / (fs * 2)) # prewarped analog freq a1 = (w_pp - 1)/(w_pp + 1) b0 = w_pp/(1 + w_pp) b1 = b0 btaps = [b0, b1] ataps = [1, a1] if 0: print "btaps =", btaps print "ataps =", ataps global plot1 plot1 = gru.gnuplot_freqz (gru.freqz (btaps, ataps), fs, True) self.deemph = gr.iir_filter_ffd(btaps, ataps) # compute FIR filter taps for audio filter width_of_transition_band = audio_rate / 32 audio_coeffs = gr.firdes.low_pass (volume, # gain quad_rate, # sampling rate audio_rate/2 - width_of_transition_band, width_of_transition_band, gr.firdes.WIN_HAMMING) # input: float; output: float self.audio_filter = gr.fir_filter_fff (audio_decimation, audio_coeffs) self.fg.connect (self.fm_demod, self.deemph, self.audio_filter) # end hier_block volume_control = gr.multiply_const_ff(self.vol) self.volume_control = volume_control # sound card as final sink audio_sink = audio.sink (int (audio_rate)) # audio_sink = gr.null_sink(gr.sizeof_float) # now wire it all together self.fg.connect (src, chan_filt) self.fg.connect (chan_filt, self.fm_demod) self.fg.connect (self.audio_filter, volume_control) self.fg.connect (volume_control, (audio_sink,0)) self.slider_1.SetValue(55) self.set_gain(ID_SLIDER_1) self.gauge_1.SetValue(int(self.vol*200)) if 1: pre_filt, fft_win1 = \ fftsink.make_fft_sink_c (self.fg, self.panel_1, "RF In", 512, usrp_rate) self.fg.connect (src, pre_filt) if 0: pre_demod, fft_win2 = \ fftsink.make_fft_sink_c (self, panel_1, "Channel Filter out", 512, demod_rate) self.fg.connect (chan_filt, pre_demod) if 0: post_deemph, fft_win3 = \ fftsink.make_fft_sink_f (self.fg, self.panel_1, "Deemph Out", 512, demod_rate, -60, 20) self.fg.connect (self.deemph, post_deemph) if 0: post_filt, fft_win4 = \ fftsink.make_fft_sink_f (self, panel_1, "Audio Out", 512, audio_rate, -60, 20) self.fg.connect (self.audio_filter, post_filt) try: self.knob = powermate.powermate(self) self.rot = 0 powermate.EVT_POWERMATE_ROTATE (self, self.on_rotate) powermate.EVT_POWERMATE_BUTTON (self, self.on_button) except: print "No Powermate or Contour Knob found" sys.exit() self.__set_properties() self.__do_layout() self.fg.start() def __set_properties(self): # begin wxGlade: MyFrame.__set_properties self.SetTitle("frame_1") self.label_1.SetSize((157, 25)) self.slider_1.SetSize((200, 60)) # end wxGlade # wxglade doesn't support FlexGridSizer - manually change # grid_sizer_1 back to wx.FlexGridSizer(3, 1, 0, 0) if edited def __do_layout(self): # begin wxGlade: MyFrame.__do_layout grid_sizer_1 = wx.FlexGridSizer(3, 1, 0, 0) sizer_1 = wx.BoxSizer(wx.HORIZONTAL) grid_sizer_2 = wx.GridSizer(2, 3, 0, 0) sizer_3 = wx.BoxSizer(wx.HORIZONTAL) grid_sizer_1.Add(self.panel_1, 1, wx.EXPAND, 0) grid_sizer_2.Add(self.label_2, 0, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) sizer_3.Add(self.bitmap_1, 0, wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) sizer_3.Add(self.bitmap_2, 0, wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) sizer_3.Add(self.bitmap_3, 0, wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) sizer_3.Add(self.bitmap_4, 0, wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) grid_sizer_2.Add(sizer_3, 1, wx.EXPAND, 0) grid_sizer_2.Add(self.radio_btn_1, 0, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) grid_sizer_2.Add(self.label_3, 0, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) grid_sizer_2.Add(self.gauge_1, 0, wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) grid_sizer_2.Add(self.radio_btn_2, 0, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) grid_sizer_1.Add(grid_sizer_2, 1, wx.EXPAND, 0) sizer_1.Add(self.label_1, 0, wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) sizer_1.Add(self.slider_1, 0, wx.ALIGN_CENTER_HORIZONTAL|wx.ALIGN_CENTER_VERTICAL|wx.FIXED_MINSIZE, 0) grid_sizer_1.Add(sizer_1, 1, wx.EXPAND, 0) self.SetAutoLayout(True) self.SetSizer(grid_sizer_1) grid_sizer_1.Fit(self) grid_sizer_1.SetSizeHints(self) self.Layout() # end wxGlade def MenuExit(self, event): self.fg.stop() self.Close() def set_gain (self,event): gain = self.slider_1.GetValue() self.dboard.set_gain(gain) def on_rotate (self, event): self.rot += event.delta if (self.state == "FREQ"): if self.rot >= 3: self.set_freq(self.station + .2) self.update_display(self.station) self.rot -= 3 elif self.rot <=-3: self.set_freq(self.station - .2) self.update_display(self.station) self.rot += 3 else: if self.rot >= 3: self.set_vol(self.vol * 1.05) if self.vol < 1: self.gauge_1.SetValue(int(self.vol*200)) else: self.gauge_1.SetValue(200) self.rot -= 3 elif self.rot <=-3: self.set_vol(self.vol * .95) if self.vol < 1: self.gauge_1.SetValue(int(self.vol*200)) else: self.gauge_1.SetValue(200) self.rot += 3 def on_button (self, event): if event.value == 0: # button up return self.rot = 0 if self.state == "FREQ": self.state = "VOL" self.radio_btn_2.SetValue(True) else: self.state = "FREQ" self.radio_btn_1.SetValue(True) def set_freq (self, freq): if freq >878: freq = freq/10.0 if freq < 87.9: freq = 87.9 elif freq >108.1: freq = 108.1 self.station = freq RF_freq = freq * 1e6 (success, actual_freq) = self.dboard.set_freq(RF_freq) assert success IF_freq = RF_freq - actual_freq self.src.set_rx_freq (0, -IF_freq) def set_vol (self, vol): self.vol = vol self.volume_control.set_k(self.vol) def update_display(self, freq): n = int(freq * 10 + .000001) # needs a little help over the digit bound d = int(n/1e3) if d==0: self.bitmap_1.SetBitmap(self.n0) elif d==1: self.bitmap_1.SetBitmap(self.n1) elif d==2: self.bitmap_1.SetBitmap(self.n2) elif d==3: self.bitmap_1.SetBitmap(self.n3) elif d==4: self.bitmap_1.SetBitmap(self.n4) elif d==5: self.bitmap_1.SetBitmap(self.n5) elif d==6: self.bitmap_1.SetBitmap(self.n6) elif d==7: self.bitmap_1.SetBitmap(self.n7) elif d==8: self.bitmap_1.SetBitmap(self.n8) elif d==9: self.bitmap_1.SetBitmap(self.n9) n -= int(d*1e3) d = int(n/1e2) if d==0: self.bitmap_2.SetBitmap(self.n0) elif d==1: self.bitmap_2.SetBitmap(self.n1) elif d==2: self.bitmap_2.SetBitmap(self.n2) elif d==3: self.bitmap_2.SetBitmap(self.n3) elif d==4: self.bitmap_2.SetBitmap(self.n4) elif d==5: self.bitmap_2.SetBitmap(self.n5) elif d==6: self.bitmap_2.SetBitmap(self.n6) elif d==7: self.bitmap_2.SetBitmap(self.n7) elif d==8: self.bitmap_2.SetBitmap(self.n8) elif d==9: self.bitmap_2.SetBitmap(self.n9) n -= int(d*1e2) d = int(n/1e1) if d==0: self.bitmap_3.SetBitmap(self.n0) elif d==1: self.bitmap_3.SetBitmap(self.n1) elif d==2: self.bitmap_3.SetBitmap(self.n2) elif d==3: self.bitmap_3.SetBitmap(self.n3) elif d==4: self.bitmap_3.SetBitmap(self.n4) elif d==5: self.bitmap_3.SetBitmap(self.n5) elif d==6: self.bitmap_3.SetBitmap(self.n6) elif d==7: self.bitmap_3.SetBitmap(self.n7) elif d==8: self.bitmap_3.SetBitmap(self.n8) elif d==9: self.bitmap_3.SetBitmap(self.n9) n -= int(d*1e1) d = int(n/1e0) if d==0: self.bitmap_4.SetBitmap(self.n0) elif d==1: self.bitmap_4.SetBitmap(self.n1) elif d==2: self.bitmap_4.SetBitmap(self.n2) elif d==3: self.bitmap_4.SetBitmap(self.n3) elif d==4: self.bitmap_4.SetBitmap(self.n4) elif d==5: self.bitmap_4.SetBitmap(self.n5) elif d==6: self.bitmap_4.SetBitmap(self.n6) elif d==7: self.bitmap_4.SetBitmap(self.n7) elif d==8: self.bitmap_4.SetBitmap(self.n8) elif d==9: self.bitmap_4.SetBitmap(self.n9) def radio_button(self, event): id = event.GetId() if id == ID_RADIO_FREQ: self.state = "FREQ" if id == ID_RADIO_VOL: self.state = "VOL" # end of class MyFrame class MyApp(wx.App): def OnInit(self): frame = MyFrame(None, -1, "GNU FM Radio") frame.Show(True) self.SetTopWindow(frame) return True app = MyApp(0) app.MainLoop()