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#!/usr/bin/env python
#
# Copyright 2007 Free Software Foundation, Inc.
#
# This program 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 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
from gnuradio import gr, eng_notation
from gnuradio.eng_option import eng_option
from optparse import OptionParser
import sys
master_clock = 100e6
class my_top_block(gr.top_block):
def __init__(self):
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option)
parser.add_option("-f", "--freq", type="eng_float", default=1e6,
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("-i", "--interp", type="int", default=32,
help="assume fgpa interpolation rate is INTERP [default=%default]")
(options, args) = parser.parse_args ()
if len(args) != 0:
parser.print_help()
raise SystemExit, 1
src0 = gr.sig_source_c(master_clock/options.interp,
gr.GR_SIN_WAVE,
options.freq,
options.amplitude)
c2s = gr.complex_to_interleaved_short()
stdout_sink = gr.file_descriptor_sink(gr.sizeof_short, 1)
self.connect(src0, c2s, stdout_sink)
if __name__ == '__main__':
try:
my_top_block().run()
except KeyboardInterrupt:
pass
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