From 738580860ea0b481b341b1487099a7f9d5cf614d Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Tue, 4 Oct 2011 22:46:44 -0400
Subject: uhd: moved WFM recever and no-gui receiver to gr-uhd/examples and
made work with UHD.
---
.../python/usrp/usrp_wfm_rcv_nogui.py | 177 ---------------------
1 file changed, 177 deletions(-)
delete mode 100755 gnuradio-examples/python/usrp/usrp_wfm_rcv_nogui.py
(limited to 'gnuradio-examples/python/usrp/usrp_wfm_rcv_nogui.py')
diff --git a/gnuradio-examples/python/usrp/usrp_wfm_rcv_nogui.py b/gnuradio-examples/python/usrp/usrp_wfm_rcv_nogui.py
deleted file mode 100755
index 217f207c5a..0000000000
--- a/gnuradio-examples/python/usrp/usrp_wfm_rcv_nogui.py
+++ /dev/null
@@ -1,177 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2005,2006,2007 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.
-#
-
-from gnuradio import gr, gru, eng_notation, optfir
-from gnuradio import audio
-from gnuradio import usrp
-from gnuradio import blks2
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-from usrpm import usrp_dbid
-import sys
-import math
-
-def pick_subdevice(u):
- """
- The user didn't specify a subdevice on the command line.
- Try for one of these, in order: TV_RX, BASIC_RX, whatever is on side A.
-
- @return a subdev_spec
- """
- return usrp.pick_subdev(u, (usrp_dbid.TV_RX,
- usrp_dbid.TV_RX_REV_2,
- usrp_dbid.TV_RX_REV_3,
- usrp_dbid.TV_RX_MIMO,
- usrp_dbid.TV_RX_REV_2_MIMO,
- usrp_dbid.TV_RX_REV_3_MIMO,
- usrp_dbid.BASIC_RX))
-
-
-class wfm_rx_block (gr.top_block):
-
- def __init__(self):
- gr.top_block.__init__(self)
-
- 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 (default=A)")
- parser.add_option("-f", "--freq", type="eng_float", default=100.1e6,
- help="set frequency to FREQ", metavar="FREQ")
- parser.add_option("-g", "--gain", type="eng_float", default=None,
- help="set gain in dB (default is midpoint)")
- parser.add_option("-O", "--audio-output", type="string", default="",
- help="pcm device name. E.g., hw:0,0 or surround51 or /dev/dsp")
-
- (options, args) = parser.parse_args()
- if len(args) != 0:
- parser.print_help()
- sys.exit(1)
-
- self.vol = .1
- self.state = "FREQ"
- self.freq = 0
-
- # build graph
-
- self.u = usrp.source_c() # usrp is data source
-
- adc_rate = self.u.adc_rate() # 64 MS/s
- usrp_decim = 200
- self.u.set_decim_rate(usrp_decim)
- usrp_rate = adc_rate / usrp_decim # 320 kS/s
- chanfilt_decim = 1
- demod_rate = usrp_rate / chanfilt_decim
- audio_decimation = 10
- audio_rate = demod_rate / audio_decimation # 32 kHz
-
-
- if options.rx_subdev_spec is None:
- options.rx_subdev_spec = pick_subdevice(self.u)
-
- self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
- self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
- print "Using RX d'board %s" % (self.subdev.side_and_name(),)
-
-
- 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)
-
- self.guts = blks2.wfm_rcv (demod_rate, audio_decimation)
-
- self.volume_control = gr.multiply_const_ff(self.vol)
-
- # sound card as final sink
- audio_sink = audio.sink(int(audio_rate),
- options.audio_output,
- False) # ok_to_block
-
- # now wire it all together
- self.connect (self.u, chan_filt, self.guts, self.volume_control, audio_sink)
-
-
- if options.gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.subdev.gain_range()
- options.gain = float(g[0]+g[1])/2
-
- if abs(options.freq) < 1e6:
- options.freq *= 1e6
-
- # set initial values
-
- self.set_gain(options.gain)
-
- if not(self.set_freq(options.freq)):
- self._set_status_msg("Failed to set initial frequency")
-
- def set_vol (self, vol):
- self.vol = vol
- self.volume_control.set_k(self.vol)
- self.update_status_bar ()
-
- 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.
- """
- r = self.u.tune(0, self.subdev, target_freq)
-
- if r:
- self.freq = target_freq
- self.update_status_bar()
- self._set_status_msg("OK", 0)
- return True
-
- self._set_status_msg("Failed", 0)
- return False
-
- def set_gain(self, gain):
- self.subdev.set_gain(gain)
-
- def update_status_bar (self):
- msg = "Freq: %s Volume:%f Setting:%s" % (
- eng_notation.num_to_str(self.freq), self.vol, self.state)
- self._set_status_msg(msg, 1)
-
- def _set_status_msg(self, msg, which=0):
- print msg
-
-
-if __name__ == '__main__':
- tb = wfm_rx_block()
- try:
- tb.run()
- except KeyboardInterrupt:
- pass
--
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