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#!/usr/bin/env python
#
# Copyright 2004 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.
#
"""
Setup USRP for maximum power consumption.
"""
from gnuradio import gr
from gnuradio import usrp
from gnuradio.eng_option import eng_option
from optparse import OptionParser
def ramp_source (fg):
period = 2**16
src = gr.vector_source_s (range (-period/2, period/2, 1), True)
return src
def build_graph (tx_enable, rx_enable):
max_usb_rate = 8e6 # 8 MS/sec
dac_freq = 128e6
adc_freq = 64e6
tx_nchan = 2
tx_mux = 0x0000ba98
tx_interp = int (dac_freq / (max_usb_rate/2 * tx_nchan)) # 16
rx_nchan = 2
rx_mux = 0x00003210
rx_decim = int ((adc_freq * rx_nchan) / (max_usb_rate/2)) # 32
fg = gr.flow_graph ()
if tx_enable:
tx_src0 = gr.sig_source_c (dac_freq/tx_interp, gr.GR_CONST_WAVE, 0, 16e3, 0)
usrp_tx = usrp.sink_c (0, tx_interp, tx_nchan, tx_mux)
usrp_tx.set_tx_freq (0, 10e6)
usrp_tx.set_tx_freq (1, 9e6)
fg.connect (tx_src0, usrp_tx)
if rx_enable:
usrp_rx = usrp.source_c (0, rx_decim, rx_nchan, rx_mux)
usrp_rx.set_rx_freq (0, 5.5e6)
usrp_rx.set_rx_freq (1, 6.5e6)
rx_dst0 = gr.null_sink (gr.sizeof_gr_complex)
fg.connect (usrp_rx, rx_dst0)
return fg
def main ():
parser = OptionParser (option_class=eng_option)
parser.add_option ("-t", action="store_true", dest="tx_enable",
default=False, help="enable Tx path")
parser.add_option ("-r", action="store_true", dest="rx_enable",
default=False, help="enable Rx path")
(options, args) = parser.parse_args ()
fg = build_graph (options.tx_enable, options.rx_enable)
fg.start ()
raw_input ('Press Enter to quit: ')
fg.stop ()
if __name__ == '__main__':
main ()
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