summaryrefslogtreecommitdiff
path: root/gr-digital/examples/uhd_interface.py
diff options
context:
space:
mode:
authorTom Rondeau <trondeau@vt.edu>2011-10-12 16:57:51 -0400
committerTom Rondeau <trondeau@vt.edu>2011-10-12 16:57:51 -0400
commitd1e3108c8705289d194300ca9fad1c22f579be9b (patch)
treea0fab09f48e0dddda2f40ef2af5e4df757a341b6 /gr-digital/examples/uhd_interface.py
parent06860c309153890a6a42babfbedf230eb24f0042 (diff)
digital: moved narrowband examples to their own directory (to make room for OFDM examples).
Diffstat (limited to 'gr-digital/examples/uhd_interface.py')
-rw-r--r--gr-digital/examples/uhd_interface.py219
1 files changed, 0 insertions, 219 deletions
diff --git a/gr-digital/examples/uhd_interface.py b/gr-digital/examples/uhd_interface.py
deleted file mode 100644
index 8420f3eece..0000000000
--- a/gr-digital/examples/uhd_interface.py
+++ /dev/null
@@ -1,219 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2010,2011 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, uhd
-from gnuradio import eng_notation
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
-
-import sys
-
-def add_freq_option(parser):
- """
- Hackery that has the -f / --freq option set both tx_freq and rx_freq
- """
- def freq_callback(option, opt_str, value, parser):
- parser.values.rx_freq = value
- parser.values.tx_freq = value
-
- if not parser.has_option('--freq'):
- parser.add_option('-f', '--freq', type="eng_float",
- action="callback", callback=freq_callback,
- help="set Tx and/or Rx frequency to FREQ [default=%default]",
- metavar="FREQ")
-
-class uhd_interface:
- def __init__(self, istx, address, bitrate, sps, freq=None,
- gain=None, antenna=None):
-
- if(istx):
- self.u = uhd.usrp_sink(device_addr=address,
- io_type=uhd.io_type.COMPLEX_FLOAT32,
- num_channels=1)
- else:
- self.u = uhd.usrp_source(device_addr=address,
- io_type=uhd.io_type.COMPLEX_FLOAT32,
- num_channels=1)
-
- self._addr = address
- self._ant = antenna
- self._gain = self.set_gain(gain)
- self._freq = self.set_freq(freq)
-
- self._rate, self._sps = self.set_sample_rate(bitrate, sps)
-
- if(antenna):
- self.u.set_antenna(antenna, 0)
-
- def set_sample_rate(self, bitrate, req_sps):
- start_sps = req_sps
- while(True):
- asked_samp_rate = bitrate * req_sps
- self.u.set_samp_rate(asked_samp_rate)
- actual_samp_rate = self.u.get_samp_rate()
-
- sps = actual_samp_rate/bitrate
- if(sps < 2):
- req_sps +=1
- else:
- actual_sps = sps
- break
-
- if(sps != req_sps):
- print "\nBit Rate: %f" % (bitrate)
- print "Requested sps: %f" % (start_sps)
- print "Given sample rate: %f" % (actual_samp_rate)
- print "Actual sps for rate: %f" % (actual_sps)
-
- if(actual_samp_rate != asked_samp_rate):
- print "\nRequested sample rate: %f" % (asked_samp_rate)
- print "Actual sample rate: %f" % (actual_samp_rate)
-
- return (actual_samp_rate, actual_sps)
-
- def get_sample_rate(self):
- return self.u.get_samp_rate()
-
- def set_gain(self, gain=None):
- if gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.u.get_gain_range()
- gain = float(g.start()+g.stop())/2
- print "\nNo gain specified."
- print "Setting gain to %f (from [%f, %f])" % \
- (gain, g.start(), g.stop())
-
- self.u.set_gain(gain, 0)
- return gain
-
- def set_freq(self, freq=None):
- if(freq is None):
- sys.stderr.write("You must specify -f FREQ or --freq FREQ\n")
- sys.exit(1)
-
- r = self.u.set_center_freq(freq, 0)
- if r:
- return freq
- else:
- frange = self.u.get_freq_range()
- sys.stderr.write(("\nRequested frequency (%f) out or range [%f, %f]\n") % \
- (freq, frange.start(), frange.stop()))
- sys.exit(1)
-
-#-------------------------------------------------------------------#
-# TRANSMITTER
-#-------------------------------------------------------------------#
-
-class uhd_transmitter(uhd_interface, gr.hier_block2):
- def __init__(self, address, bitrate, sps, freq=None, gain=None,
- antenna=None, verbose=False):
- gr.hier_block2.__init__(self, "uhd_transmitter",
- gr.io_signature(1,1,gr.sizeof_gr_complex),
- gr.io_signature(0,0,0))
-
- # Set up the UHD interface as a transmitter
- uhd_interface.__init__(self, True, address, bitrate, sps,
- freq, gain, antenna)
-
- self.connect(self, self.u)
-
- if(verbose):
- self._print_verbage()
-
- def add_options(parser):
- add_freq_option(parser)
- parser.add_option("-a", "--address", type="string", default="addr=192.168.10.2",
- help="Address of UHD device, [default=%default]")
- parser.add_option("-A", "--antenna", type="string", default=None,
- help="select Rx Antenna where appropriate")
- parser.add_option("", "--tx-freq", type="eng_float", default=None,
- help="set transmit frequency to FREQ [default=%default]",
- metavar="FREQ")
- parser.add_option("", "--tx-gain", type="eng_float", default=None,
- help="set transmit gain in dB (default is midpoint)")
- parser.add_option("-v", "--verbose", action="store_true", default=False)
-
- # Make a static method to call before instantiation
- add_options = staticmethod(add_options)
-
- def _print_verbage(self):
- """
- Prints information about the UHD transmitter
- """
- print "\nUHD Transmitter:"
- print "Address: %s" % (self._addr)
- print "Freq: %sHz" % (eng_notation.num_to_str(self._freq))
- print "Gain: %f dB" % (self._gain)
- print "Sample Rate: %ssps" % (eng_notation.num_to_str(self._rate))
- print "Antenna: %s" % (self._ant)
-
-
-
-#-------------------------------------------------------------------#
-# RECEIVER
-#-------------------------------------------------------------------#
-
-
-class uhd_receiver(uhd_interface, gr.hier_block2):
- def __init__(self, address, bitrate, sps, freq=None, gain=None,
- antenna=None, verbose=False):
- gr.hier_block2.__init__(self, "uhd_receiver",
- gr.io_signature(0,0,0),
- gr.io_signature(1,1,gr.sizeof_gr_complex))
-
- # Set up the UHD interface as a receiver
- uhd_interface.__init__(self, False, address, bitrate, sps,
- freq, gain, antenna)
-
- self.connect(self.u, self)
-
- if(verbose):
- self._print_verbage()
-
- def add_options(parser):
- add_freq_option(parser)
- parser.add_option("-a", "--address", type="string", default="addr=192.168.10.2",
- help="Address of UHD device, [default=%default]")
- parser.add_option("-A", "--antenna", type="string", default=None,
- help="select Rx Antenna where appropriate")
- parser.add_option("", "--rx-freq", type="eng_float", default=None,
- help="set receive frequency to FREQ [default=%default]",
- metavar="FREQ")
- parser.add_option("", "--rx-gain", type="eng_float", default=None,
- help="set receive gain in dB (default is midpoint)")
- if not parser.has_option("--verbose"):
- parser.add_option("-v", "--verbose", action="store_true", default=False)
-
- # Make a static method to call before instantiation
- add_options = staticmethod(add_options)
-
- def _print_verbage(self):
- """
- Prints information about the UHD transmitter
- """
- print "\nUHD Receiver:"
- print "Address: %s" % (self._addr)
- print "Freq: %sHz" % (eng_notation.num_to_str(self._freq))
- print "Gain: %f dB" % (self._gain)
- print "Sample Rate: %ssps" % (eng_notation.num_to_str(self._rate))
- print "Antenna: %s" % (self._ant)
-
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-25 00:41:14 +0000