diff options
Diffstat (limited to 'gr-gpio/src/python/gpio_usrp_siggen.py')
| -rwxr-xr-x | gr-gpio/src/python/gpio_usrp_siggen.py | 208 |
1 files changed, 0 insertions, 208 deletions
diff --git a/gr-gpio/src/python/gpio_usrp_siggen.py b/gr-gpio/src/python/gpio_usrp_siggen.py deleted file mode 100755 index 0e483c35d..000000000 --- a/gr-gpio/src/python/gpio_usrp_siggen.py +++ /dev/null @@ -1,208 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2008 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 -from gnuradio import usrp -from gnuradio.eng_option import eng_option -from gnuradio import eng_notation -from optparse import OptionParser -import sys - -from gnuradio import gpio - -class my_top_block(gr.top_block): - def __init__ (self): - gr.top_block.__init__(self) - - # controllable values - self.interp = 64 - self.waveform_type = gr.GR_CONST_WAVE - self.waveform_ampl = 16000 - self.waveform_freq = 100.12345e3 - self.waveform_offset = 0 - self._instantiate_blocks () - self.set_waveform_type (self.waveform_type) - - def usb_freq (self): - return self.u.dac_freq() / self.interp - - def usb_throughput (self): - return self.usb_freq () * 4 - - def set_waveform_type (self, type): - ''' - valid waveform types are: gr.GR_SIN_WAVE, gr.GR_CONST_WAVE, - gr.GR_UNIFORM and gr.GR_GAUSSIAN - ''' - self._configure_graph (type) - self.waveform_type = type - - def set_waveform_ampl (self, ampl): - self.waveform_ampl = ampl - self.siggen.set_amplitude (ampl) - self.noisegen.set_amplitude (ampl) - - def set_waveform_freq (self, freq): - self.waveform_freq = freq - self.siggen.set_frequency (freq) - - def set_waveform_offset (self, offset): - self.waveform_offset = offset - self.siggen.set_offset (offset) - - def set_interpolator (self, interp): - self.interp = interp - self.siggen.set_sampling_freq (self.usb_freq ()) - self.u.set_interp_rate (interp) - - def _instantiate_blocks (self): - self.src = None - self.u = usrp.sink_c (0, self.interp,fpga_filename=gpio.fpga_filename) - - self.siggen = gr.sig_source_c (self.usb_freq (), - gr.GR_SIN_WAVE, - self.waveform_freq, - self.waveform_ampl, - self.waveform_offset) - - self.noisegen = gr.noise_source_c (gr.GR_UNIFORM, - self.waveform_ampl) - self.vecgen = gr.vector_source_c ([complex(1.0,0.0),complex(0.0,0.0),complex(1.0,1.0),complex(0.0,1.0)],True) - - # self.file_sink = gr.file_sink (gr.sizeof_gr_complex, "siggen.dat") - - def _configure_graph (self, type): - try: - self.lock() - self.disconnect_all () - if type == gr.GR_SIN_WAVE: - self.connect (self.siggen, self.u) - # self.connect (self.siggen, self.file_sink) - self.siggen.set_waveform (type) - self.src = self.siggen - elif type == gr.GR_UNIFORM or type == gr.GR_GAUSSIAN: - self.connect (self.noisegen, self.u) - self.noisegen.set_type (type) - self.src = self.noisegen - elif type == gr.GR_CONST_WAVE: - self.connect (self.vecgen, self.u) - self.src = self.vecgen - else: - raise ValueError, type - finally: - self.unlock() - - 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: - #print "r.baseband_freq =", eng_notation.num_to_str(r.baseband_freq) - #print "r.dxc_freq =", eng_notation.num_to_str(r.dxc_freq) - #print "r.residual_freq =", eng_notation.num_to_str(r.residual_freq) - #print "r.inverted =", r.inverted - return True - - return False - - - -def main (): - parser = OptionParser (option_class=eng_option) - parser.add_option ("-T", "--tx-subdev-spec", type="subdev", default=(0, 0), - help="select USRP Tx side A or B") - parser.add_option ("-f", "--rf-freq", type="eng_float", default=None, - help="set RF center frequency to FREQ") - parser.add_option ("-i", "--interp", type="int", default=512, - help="set fgpa interpolation rate to INTERP [default=%default]") - parser.add_option ("--sine", dest="type", action="store_const", const=gr.GR_SIN_WAVE, - help="generate a complex sinusoid [default]", default=gr.GR_SIN_WAVE) - - parser.add_option ("--gaussian", dest="type", action="store_const", const=gr.GR_GAUSSIAN, - help="generate Gaussian random output") - parser.add_option ("--uniform", dest="type", action="store_const", const=gr.GR_UNIFORM, - help="generate Uniform random output") - - parser.add_option ("-w", "--waveform-freq", type="eng_float", default=100e3, - help="set waveform frequency to FREQ [default=%default]") - parser.add_option ("-a", "--amplitude", type="eng_float", default=16e3, - help="set waveform amplitude to AMPLITUDE [default=%default]", metavar="AMPL") - parser.add_option ("-g", "--gain", type="eng_float", default=None, - help="set output gain to GAIN [default=%default]") - parser.add_option ("-o", "--offset", type="eng_float", default=0, - help="set waveform offset to OFFSET [default=%default]") - parser.add_option ("--digital", dest="type", action="store_const", const=gr.GR_CONST_WAVE, - help="generate (only) a digital wave on lsb (will be output on gpio pins with special usrp firmware)") - (options, args) = parser.parse_args () - - if len(args) != 0: - parser.print_help() - raise SystemExit - - if options.rf_freq is None: - sys.stderr.write("usrp_siggen: must specify RF center frequency with -f RF_FREQ\n") - parser.print_help() - raise SystemExit - - tb = my_top_block() - tb.set_interpolator (options.interp) - tb.set_waveform_type (options.type) - tb.set_waveform_freq (options.waveform_freq) - tb.set_waveform_ampl (options.amplitude) - tb.set_waveform_offset (options.offset) - - # determine the daughterboard subdevice we're using - if options.tx_subdev_spec is None: - options.tx_subdev_spec = usrp.pick_tx_subdevice(tb.u) - - m = usrp.determine_tx_mux_value(tb.u, options.tx_subdev_spec) - #print "mux = %#04x" % (m,) - tb.u.set_mux(m) - tb.subdev = usrp.selected_subdev(tb.u, options.tx_subdev_spec) - print "Using TX d'board %s" % (tb.subdev.side_and_name(),) - - if options.gain is None: - tb.subdev.set_gain(tb.subdev.gain_range()[1]) # set max Tx gain - else: - tb.subdev.set_gain(options.gain) # set max Tx gain - - if not tb.set_freq(options.rf_freq): - sys.stderr.write('Failed to set RF frequency\n') - raise SystemExit - - tb.subdev.set_enable(True) # enable transmitter - - try: - tb.run() - except KeyboardInterrupt: - pass - -if __name__ == '__main__': - main () |