diff options
| author | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-09-27 05:14:03 +0000 |
|---|---|---|
| committer | eb <eb@221aa14e-8319-0410-a670-987f0aec2ac5> | 2006-09-27 05:14:03 +0000 |
| commit | f1c41f807cb29472d0924149e39d6ec8ad90e6a2 (patch) | |
| tree | 47e42f8cdfc83aaa3b706e06862c3efa4ba16745 /gnuradio-examples/python/gmsk2/transmit_path.py | |
| parent | 04bb51ec4f1539c51c861b7fcad2ca8047a872a3 (diff) | |
Merged changes from eb/digital-wip into trunk.
This includes:
* renaming gnuradio-examples/python/gmsk2 to gnuradio-examples/python/digital
* refactoring the digital data tx and rx test code into benchmark_tx
and benchmark_rx. These accept a -m <modulation> argument.
<modulation> can currently be selected from gmsk, dbpsk, dqpsk
* Two new AGC blocks: gr_agc2: separate attack and delay rates;
gr_feedforward_agc: FIR-ish compressor. Normalizes to peak envelope.
* Working DBPSK mod/demod (works fine)
* Working DQPSK mod/demod (works, but still needs more work)
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3662 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-examples/python/gmsk2/transmit_path.py')
| -rw-r--r-- | gnuradio-examples/python/gmsk2/transmit_path.py | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/gnuradio-examples/python/gmsk2/transmit_path.py b/gnuradio-examples/python/gmsk2/transmit_path.py deleted file mode 100644 index d360d1a5ef..0000000000 --- a/gnuradio-examples/python/gmsk2/transmit_path.py +++ /dev/null @@ -1,108 +0,0 @@ -# -# Copyright 2005,2006 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 2, 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, blks -from gnuradio import usrp - -# from current dir -from pick_bitrate import pick_tx_bitrate - -# ///////////////////////////////////////////////////////////////////////////// -# transmit path -# ///////////////////////////////////////////////////////////////////////////// - -class transmit_path(gr.hier_block): - def __init__(self, fg, mod_class, tx_subdev_spec, - bitrate, interp, spb, gain, - options, mod_kwargs): - - self.normal_gain = gain - - self.u = usrp.sink_c (fusb_block_size=options.fusb_block_size, - fusb_nblocks=options.fusb_nblocks) - dac_rate = self.u.dac_rate(); - - print mod_class - print mod_class.bits_per_baud() - (self._bitrate, self._spb, self._interp) = \ - pick_tx_bitrate(bitrate, mod_class.bits_per_baud(), spb, interp, dac_rate) - - self.u.set_interp_rate(self._interp) - - # determine the daughterboard subdevice we're using - if tx_subdev_spec is None: - tx_subdev_spec = usrp.pick_tx_subdevice(self.u) - self.u.set_mux(usrp.determine_tx_mux_value(self.u, tx_subdev_spec)) - self.subdev = usrp.selected_subdev(self.u, tx_subdev_spec) - print "Using TX d'board %s" % (self.subdev.side_and_name(),) - - # transmitter - self.packet_transmitter = \ - blks.mod_pkts(fg, - mod_class(fg, spb=self._spb, **mod_kwargs), - access_code=None, - msgq_limit=4, - pad_for_usrp=True) - - self.amp = gr.multiply_const_cc (self.normal_gain) - - fg.connect(self.packet_transmitter, self.amp, self.u) - gr.hier_block.__init__(self, fg, None, None) - - self.set_gain(self.subdev.gain_range()[1]) # set max Tx gain - self.set_auto_tr(True) # enable Auto Transmit/Receive switching - - 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. - """ - r = self.u.tune(self.subdev._which, self.subdev, target_freq) - if r: - return True - - return False - - def set_gain(self, gain): - self.gain = gain - self.subdev.set_gain(gain) - - def set_auto_tr(self, enable): - return self.subdev.set_auto_tr(enable) - - def send_pkt(self, payload='', eof=False): - return self.packet_transmitter.send_pkt(payload, eof) - - def bitrate(self): - return self._bitrate - - def spb(self): - return self._spb - - def interp(self): - return self._interp |