From 0fb09639fbbdae15e8efce953999eba8e4c223a2 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Tue, 4 Oct 2011 17:26:23 -0400
Subject: uhd: moved NBFM examples to gr-uhd/examples directory and made work
with UHD.
---
gnuradio-examples/python/usrp/usrp_nbfm_ptt.py | 497 -------------------------
1 file changed, 497 deletions(-)
delete mode 100755 gnuradio-examples/python/usrp/usrp_nbfm_ptt.py
(limited to 'gnuradio-examples/python/usrp/usrp_nbfm_ptt.py')
diff --git a/gnuradio-examples/python/usrp/usrp_nbfm_ptt.py b/gnuradio-examples/python/usrp/usrp_nbfm_ptt.py
deleted file mode 100755
index 3ce1e0c49f..0000000000
--- a/gnuradio-examples/python/usrp/usrp_nbfm_ptt.py
+++ /dev/null
@@ -1,497 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2005,2007 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio 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 3, or (at your option)
-# any later version.
-#
-# GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-import math
-import sys
-import wx
-from optparse import OptionParser
-
-from gnuradio import gr, gru, eng_notation
-from gnuradio import usrp
-from gnuradio import audio
-from gnuradio import blks2
-from gnuradio.eng_option import eng_option
-from gnuradio.wxgui import stdgui2, fftsink2, scopesink2, slider, form
-from usrpm import usrp_dbid
-
-from numpy import convolve, array
-
-#import os
-#print "pid =", os.getpid()
-#raw_input('Press Enter to continue: ')
-
-# ////////////////////////////////////////////////////////////////////////
-# Control Stuff
-# ////////////////////////////////////////////////////////////////////////
-
-class ptt_block(stdgui2.std_top_block):
- def __init__(self, frame, panel, vbox, argv):
- stdgui2.std_top_block.__init__ (self, frame, panel, vbox, argv)
-
- self.frame = frame
- self.space_bar_pressed = False
-
- parser = OptionParser (option_class=eng_option)
- parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
- help="select USRP Rx side A or B")
- parser.add_option("-T", "--tx-subdev-spec", type="subdev", default=None,
- help="select USRP Tx side A or B")
- parser.add_option ("-f", "--freq", type="eng_float", default=442.1e6,
- help="set Tx and Rx frequency to FREQ", metavar="FREQ")
- parser.add_option ("-g", "--rx-gain", type="eng_float", default=None,
- help="set rx gain [default=midpoint in dB]")
- parser.add_option("-I", "--audio-input", type="string", default="",
- help="pcm input device name. E.g., hw:0,0 or /dev/dsp")
- parser.add_option("-O", "--audio-output", type="string", default="",
- help="pcm output device name. E.g., hw:0,0 or /dev/dsp")
- parser.add_option ("-N", "--no-gui", action="store_true", default=False)
- (options, args) = parser.parse_args ()
-
- if len(args) != 0:
- parser.print_help()
- sys.exit(1)
-
- if options.freq < 1e6:
- options.freq *= 1e6
-
- self.txpath = transmit_path(options.tx_subdev_spec, options.audio_input)
- self.rxpath = receive_path(options.rx_subdev_spec, options.rx_gain, options.audio_output)
- self.connect(self.txpath)
- self.connect(self.rxpath)
-
- self._build_gui(frame, panel, vbox, argv, options.no_gui)
-
- self.set_transmit(False)
- self.set_freq(options.freq)
- self.set_rx_gain(self.rxpath.gain) # update gui
- self.set_volume(self.rxpath.volume) # update gui
- self.set_squelch(self.rxpath.threshold()) # update gui
-
-
- def set_transmit(self, enabled):
- self.txpath.set_enable(enabled)
- self.rxpath.set_enable(not(enabled))
- if enabled:
- self.frame.SetStatusText ("Transmitter ON", 1)
- else:
- self.frame.SetStatusText ("Receiver ON", 1)
-
-
- def set_rx_gain(self, gain):
- self.myform['rx_gain'].set_value(gain) # update displayed value
- self.rxpath.set_gain(gain)
-
- def set_tx_gain(self, gain):
- self.txpath.set_gain(gain)
-
- def set_squelch(self, threshold):
- self.rxpath.set_squelch(threshold)
- self.myform['squelch'].set_value(self.rxpath.threshold())
-
- def set_volume (self, vol):
- self.rxpath.set_volume(vol)
- self.myform['volume'].set_value(self.rxpath.volume)
- #self.update_status_bar ()
-
- def set_freq(self, freq):
- r1 = self.txpath.set_freq(freq)
- r2 = self.rxpath.set_freq(freq)
- #print "txpath.set_freq =", r1
- #print "rxpath.set_freq =", r2
- if r1 and r2:
- self.myform['freq'].set_value(freq) # update displayed value
- return r1 and r2
-
- def _build_gui(self, frame, panel, vbox, argv, no_gui):
-
- def _form_set_freq(kv):
- return self.set_freq(kv['freq'])
-
- self.panel = panel
-
- # FIXME This REALLY needs to be replaced with a hand-crafted button
- # that sends both button down and button up events
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((10,0), 1)
- self.status_msg = wx.StaticText(panel, -1, "Press Space Bar to Transmit")
- of = self.status_msg.GetFont()
- self.status_msg.SetFont(wx.Font(15, of.GetFamily(), of.GetStyle(), of.GetWeight()))
- hbox.Add(self.status_msg, 0, wx.ALIGN_CENTER)
- hbox.Add((10,0), 1)
- vbox.Add(hbox, 0, wx.EXPAND | wx.ALIGN_CENTER)
-
- panel.Bind(wx.EVT_KEY_DOWN, self._on_key_down)
- panel.Bind(wx.EVT_KEY_UP, self._on_key_up)
- panel.Bind(wx.EVT_KILL_FOCUS, self._on_kill_focus)
- panel.SetFocus()
-
- if 1 and not(no_gui):
- rx_fft = fftsink2.fft_sink_c(panel, title="Rx Input", fft_size=512,
- sample_rate=self.rxpath.if_rate,
- ref_level=80, y_per_div=20)
- self.connect (self.rxpath.u, rx_fft)
- vbox.Add (rx_fft.win, 1, wx.EXPAND)
-
- if 1 and not(no_gui):
- rx_fft = fftsink2.fft_sink_c(panel, title="Post s/w DDC",
- fft_size=512, sample_rate=self.rxpath.quad_rate,
- ref_level=80, y_per_div=20)
- self.connect (self.rxpath.ddc, rx_fft)
- vbox.Add (rx_fft.win, 1, wx.EXPAND)
-
- if 0 and not(no_gui):
- foo = scopesink2.scope_sink_f(panel, title="Squelch",
- sample_rate=32000)
- self.connect (self.rxpath.fmrx.div, (foo,0))
- self.connect (self.rxpath.fmrx.gate, (foo,1))
- self.connect (self.rxpath.fmrx.squelch_lpf, (foo,2))
- vbox.Add (foo.win, 1, wx.EXPAND)
-
- if 0 and not(no_gui):
- tx_fft = fftsink2.fft_sink_c(panel, title="Tx Output",
- fft_size=512, sample_rate=self.txpath.usrp_rate)
- self.connect (self.txpath.amp, tx_fft)
- vbox.Add (tx_fft.win, 1, wx.EXPAND)
-
-
- # add control area at the bottom
-
- self.myform = myform = form.form()
-
- # first row
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((5,0), 0, 0)
- myform['freq'] = form.float_field(
- parent=panel, sizer=hbox, label="Freq", weight=1,
- callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg))
-
- hbox.Add((5,0), 0, 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
-
- # second row
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- myform['volume'] = \
- form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Volume",
- weight=3, range=self.rxpath.volume_range(),
- callback=self.set_volume)
- hbox.Add((5,0), 0)
- myform['squelch'] = \
- form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Squelch",
- weight=3, range=self.rxpath.squelch_range(),
- callback=self.set_squelch)
- hbox.Add((5,0), 0)
- myform['rx_gain'] = \
- form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Rx Gain",
- weight=3, range=self.rxpath.subdev.gain_range(),
- callback=self.set_rx_gain)
- hbox.Add((5,0), 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
-
- self._build_subpanel(vbox)
-
- def _build_subpanel(self, vbox_arg):
- # build a secondary information panel (sometimes hidden)
-
- # FIXME figure out how to have this be a subpanel that is always
- # created, but has its visibility controlled by foo.Show(True/False)
-
- #if not(self.show_debug_info):
- # return
-
- panel = self.panel
- vbox = vbox_arg
- myform = self.myform
-
- #panel = wx.Panel(self.panel, -1)
- #vbox = wx.BoxSizer(wx.VERTICAL)
-
- hbox = wx.BoxSizer(wx.HORIZONTAL)
- hbox.Add((5,0), 0)
- #myform['decim'] = form.static_float_field(
- # parent=panel, sizer=hbox, label="Decim")
-
- #hbox.Add((5,0), 1)
- #myform['fs@usb'] = form.static_float_field(
- # parent=panel, sizer=hbox, label="Fs@USB")
-
- #hbox.Add((5,0), 1)
- #myform['dbname'] = form.static_text_field(
- # parent=panel, sizer=hbox)
-
- hbox.Add((5,0), 0)
- vbox.Add(hbox, 0, wx.EXPAND)
-
-
- def _set_status_msg(self, msg, which=0):
- self.frame.GetStatusBar().SetStatusText(msg, which)
-
- def _on_key_down(self, evt):
- # print "key_down:", evt.m_keyCode
- if evt.m_keyCode == wx.WXK_SPACE and not(self.space_bar_pressed):
- self.space_bar_pressed = True
- self.set_transmit(True)
-
- def _on_key_up(self, evt):
- # print "key_up", evt.m_keyCode
- if evt.m_keyCode == wx.WXK_SPACE:
- self.space_bar_pressed = False
- self.set_transmit(False)
-
- def _on_kill_focus(self, evt):
- # if we lose the keyboard focus, turn off the transmitter
- self.space_bar_pressed = False
- self.set_transmit(False)
-
-
-# ////////////////////////////////////////////////////////////////////////
-# Transmit Path
-# ////////////////////////////////////////////////////////////////////////
-
-class transmit_path(gr.hier_block2):
- def __init__(self, subdev_spec, audio_input):
- gr.hier_block2.__init__(self, "transmit_path",
- gr.io_signature(0, 0, 0), # Input signature
- gr.io_signature(0, 0, 0)) # Output signature
-
- self.u = usrp.sink_c ()
-
- dac_rate = self.u.dac_rate();
- self.if_rate = 320e3 # 320 kS/s
- self.usrp_interp = int(dac_rate // self.if_rate)
- self.u.set_interp_rate(self.usrp_interp)
- self.sw_interp = 10
- self.audio_rate = self.if_rate // self.sw_interp # 32 kS/s
-
- self.audio_gain = 10
- self.normal_gain = 32000
-
- self.audio = audio.source(int(self.audio_rate), audio_input)
- self.audio_amp = gr.multiply_const_ff(self.audio_gain)
-
- lpf = gr.firdes.low_pass (1, # gain
- self.audio_rate, # sampling rate
- 3800, # low pass cutoff freq
- 300, # width of trans. band
- gr.firdes.WIN_HANN) # filter type
-
- hpf = gr.firdes.high_pass (1, # gain
- self.audio_rate, # sampling rate
- 325, # low pass cutoff freq
- 50, # width of trans. band
- gr.firdes.WIN_HANN) # filter type
-
- audio_taps = convolve(array(lpf),array(hpf))
- self.audio_filt = gr.fir_filter_fff(1,audio_taps)
-
- self.pl = blks2.ctcss_gen_f(self.audio_rate,123.0)
- self.add_pl = gr.add_ff()
- self.connect(self.pl,(self.add_pl,1))
-
- self.fmtx = blks2.nbfm_tx(self.audio_rate, self.if_rate)
- self.amp = gr.multiply_const_cc (self.normal_gain)
-
- # determine the daughterboard subdevice we're using
- if subdev_spec is None:
- subdev_spec = usrp.pick_tx_subdevice(self.u)
- self.u.set_mux(usrp.determine_tx_mux_value(self.u, subdev_spec))
- self.subdev = usrp.selected_subdev(self.u, subdev_spec)
- print "TX using", self.subdev.name()
-
- self.connect(self.audio, self.audio_amp, self.audio_filt,
- (self.add_pl,0), self.fmtx, self.amp, self.u)
-
- self.set_gain(self.subdev.gain_range()[1]) # set max Tx gain
-
-
- def set_freq(self, target_freq):
- """
- Set the center frequency we're interested in.
-
- @param target_freq: frequency in Hz
- @rypte: bool
-
- Tuning is a two step process. First we ask the front-end to
- tune as close to the desired frequency as it can. Then we use
- the result of that operation and our target_frequency to
- determine the value for the digital up converter. Finally, we feed
- any residual_freq to the s/w freq translater.
- """
- r = self.u.tune(self.subdev.which(), self.subdev, target_freq)
- if r:
- # Use residual_freq in s/w freq translator
- return True
-
- return False
-
- def set_gain(self, gain):
- self.gain = gain
- self.subdev.set_gain(gain)
-
- def set_enable(self, enable):
- self.subdev.set_enable(enable) # set H/W Tx enable
- if enable:
- self.amp.set_k (self.normal_gain)
- else:
- self.amp.set_k (0)
-
-
-
-# ////////////////////////////////////////////////////////////////////////
-# Receive Path
-# ////////////////////////////////////////////////////////////////////////
-
-class receive_path(gr.hier_block2):
- def __init__(self, subdev_spec, gain, audio_output):
- gr.hier_block2.__init__(self, "receive_path",
- gr.io_signature(0, 0, 0), # Input signature
- gr.io_signature(0, 0, 0)) # Output signature
-
- self.u = usrp.source_c ()
- adc_rate = self.u.adc_rate()
-
- self.if_rate = 256e3 # 256 kS/s
- usrp_decim = int(adc_rate // self.if_rate)
- if_decim = 4
- self.u.set_decim_rate(usrp_decim)
- self.quad_rate = self.if_rate // if_decim # 64 kS/s
- audio_decim = 2
- audio_rate = self.quad_rate // audio_decim # 32 kS/s
-
- if subdev_spec is None:
- subdev_spec = usrp.pick_rx_subdevice(self.u)
- self.subdev = usrp.selected_subdev(self.u, subdev_spec)
- print "RX using", self.subdev.name()
-
- self.u.set_mux(usrp.determine_rx_mux_value(self.u, subdev_spec))
-
- # Create filter to get actual channel we want
- chan_coeffs = gr.firdes.low_pass (1.0, # gain
- self.if_rate, # sampling rate
- 13e3, # low pass cutoff freq
- 4e3, # width of trans. band
- gr.firdes.WIN_HANN) # filter type
-
- print "len(rx_chan_coeffs) =", len(chan_coeffs)
-
- # Decimating Channel filter with frequency translation
- # complex in and out, float taps
- self.ddc = gr.freq_xlating_fir_filter_ccf(if_decim, # decimation rate
- chan_coeffs, # taps
- 0, # frequency translation amount
- self.if_rate) # input sample rate
-
- # instantiate the guts of the single channel receiver
- self.fmrx = blks2.nbfm_rx(audio_rate, self.quad_rate)
-
- # standard squelch block
- self.squelch = blks2.standard_squelch(audio_rate)
-
- # audio gain / mute block
- self._audio_gain = gr.multiply_const_ff(1.0)
-
- # sound card as final sink
- audio_sink = audio.sink (int(audio_rate), audio_output)
-
- # now wire it all together
- self.connect (self.u, self.ddc, self.fmrx, self.squelch, self._audio_gain, audio_sink)
-
- if gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.subdev.gain_range()
- gain = float(g[0]+g[1])/2
-
- self.enabled = True
- self.set_gain(gain)
- v = self.volume_range()
- self.set_volume((v[0]+v[1])/2)
- s = self.squelch_range()
- self.set_squelch((s[0]+s[1])/2)
-
-
- def volume_range(self):
- return (-20.0, 0.0, 0.5)
-
- def set_volume (self, vol):
- g = self.volume_range()
- self.volume = max(g[0], min(g[1], vol))
- self._update_audio_gain()
-
- def set_enable(self, enable):
- self.enabled = enable
- self._update_audio_gain()
-
- def _update_audio_gain(self):
- if self.enabled:
- self._audio_gain.set_k(10**(self.volume/10))
- else:
- self._audio_gain.set_k(0)
-
- def squelch_range(self):
- return self.squelch.squelch_range()
-
- def set_squelch(self, threshold):
- print "SQL =", threshold
- self.squelch.set_threshold(threshold)
-
- def threshold(self):
- return self.squelch.threshold()
-
- def set_freq(self, target_freq):
- """
- Set the center frequency we're interested in.
-
- @param target_freq: frequency in Hz
- @rypte: bool
-
- Tuning is a two step process. First we ask the front-end to
- tune as close to the desired frequency as it can. Then we use
- the result of that operation and our target_frequency to
- determine the value for the digital down converter in the
- FPGA. Finally, we feed any residual_freq to the s/w freq
- translator.
- """
- r = self.u.tune(0, self.subdev, target_freq)
- if r:
- # Use residual_freq in s/w freq translater
- # print "residual_freq =", r.residual_freq
- self.ddc.set_center_freq(-r.residual_freq)
- return True
-
- return False
-
- def set_gain(self, gain):
- self.gain = gain
- self.subdev.set_gain(gain)
-
-
-# ////////////////////////////////////////////////////////////////////////
-# Main
-# ////////////////////////////////////////////////////////////////////////
-
-def main():
- app = stdgui2.stdapp(ptt_block, "NBFM Push to Talk")
- app.MainLoop()
-
-if __name__ == '__main__':
- main()
--
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