diff options
Diffstat (limited to 'gr-digital/examples/ofdm/uhd_interface.py')
| -rw-r--r-- | gr-digital/examples/ofdm/uhd_interface.py | 76 |
1 files changed, 40 insertions, 36 deletions
diff --git a/gr-digital/examples/ofdm/uhd_interface.py b/gr-digital/examples/ofdm/uhd_interface.py index ac34d956ae..df5be60f30 100644 --- a/gr-digital/examples/ofdm/uhd_interface.py +++ b/gr-digital/examples/ofdm/uhd_interface.py @@ -1,24 +1,28 @@ #!/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 __future__ import print_function +from __future__ import division +from __future__ import unicode_literals from gnuradio import gr, uhd from gnuradio import eng_notation @@ -41,17 +45,17 @@ def add_freq_option(parser): help="set Tx and/or Rx frequency to FREQ [default=%default]", metavar="FREQ") -class uhd_interface: +class uhd_interface(object): def __init__(self, istx, args, bandwidth, freq=None, lo_offset=None, gain=None, spec=None, antenna=None, clock_source=None): - + if(istx): self.u = uhd.usrp_sink(device_addr=args, stream_args=uhd.stream_args('fc32')) else: self.u = uhd.usrp_source(device_addr=args, stream_args=uhd.stream_args('fc32')) # Set clock source to external. - if(clock_source): + if(clock_source): self.u.set_clock_source(clock_source, 0) # Set the subdevice spec @@ -61,7 +65,7 @@ class uhd_interface: # Set the antenna if(antenna): self.u.set_antenna(antenna, 0) - + self._args = args self._ant = antenna self._spec = spec @@ -74,21 +78,21 @@ class uhd_interface: def set_sample_rate(self, bandwidth): self.u.set_samp_rate(bandwidth) actual_bw = self.u.get_samp_rate() - + return actual_bw 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()) - + 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 @@ -96,7 +100,7 @@ class uhd_interface: 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(uhd.tune_request(freq, lo_offset)) if r: @@ -151,15 +155,15 @@ class uhd_transmitter(uhd_interface, gr.hier_block2): """ Prints information about the UHD transmitter """ - print "\nUHD Transmitter:" - print "UHD Args: %s" % (self._args) - print "Freq: %sHz" % (eng_notation.num_to_str(self._freq)) - print "LO Offset: %sHz" % (eng_notation.num_to_str(self._lo_offset)) - print "Gain: %f dB" % (self._gain) - print "Sample Rate: %ssps" % (eng_notation.num_to_str(self._rate)) - print "Antenna: %s" % (self._ant) - print "Subdev Sec: %s" % (self._spec) - print "Clock Source: %s" % (self._clock_source) + print("\nUHD Transmitter:") + print("UHD Args: %s" % (self._args)) + print("Freq: %sHz" % (eng_notation.num_to_str(self._freq))) + print("LO Offset: %sHz" % (eng_notation.num_to_str(self._lo_offset))) + print("Gain: %f dB" % (self._gain)) + print("Sample Rate: %ssps" % (eng_notation.num_to_str(self._rate))) + print("Antenna: %s" % (self._ant)) + print("Subdev Sec: %s" % (self._spec)) + print("Clock Source: %s" % (self._clock_source)) @@ -174,7 +178,7 @@ class uhd_receiver(uhd_interface, gr.hier_block2): 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, args, bandwidth, freq, lo_offset, gain, spec, antenna, clock_source) @@ -209,13 +213,13 @@ class uhd_receiver(uhd_interface, gr.hier_block2): """ Prints information about the UHD transmitter """ - print "\nUHD Receiver:" - print "UHD Args: %s" % (self._args) - print "Freq: %sHz" % (eng_notation.num_to_str(self._freq)) - print "LO Offset: %sHz" % (eng_notation.num_to_str(self._lo_offset)) - print "Gain: %f dB" % (self._gain) - print "Sample Rate: %ssps" % (eng_notation.num_to_str(self._rate)) - print "Antenna: %s" % (self._ant) - print "Subdev Sec: %s" % (self._spec) - print "Clock Source: %s" % (self._clock_source) + print("\nUHD Receiver:") + print("UHD Args: %s" % (self._args)) + print("Freq: %sHz" % (eng_notation.num_to_str(self._freq))) + print("LO Offset: %sHz" % (eng_notation.num_to_str(self._lo_offset))) + print("Gain: %f dB" % (self._gain)) + print("Sample Rate: %ssps" % (eng_notation.num_to_str(self._rate))) + print("Antenna: %s" % (self._ant)) + print("Subdev Sec: %s" % (self._spec)) + print("Clock Source: %s" % (self._clock_source)) |