diff options
Diffstat (limited to 'gnuradio-examples/python')
| -rw-r--r-- | gnuradio-examples/python/usrp/Makefile.am | 4 | ||||
| -rwxr-xr-x | gnuradio-examples/python/usrp/usrp_benchmark_usb.py | 106 | ||||
| -rwxr-xr-x | gnuradio-examples/python/usrp/usrp_test_loop_lfsr.py | 62 |
3 files changed, 1 insertions, 171 deletions
diff --git a/gnuradio-examples/python/usrp/Makefile.am b/gnuradio-examples/python/usrp/Makefile.am index 7ecff29d2..8033b2a7a 100644 --- a/gnuradio-examples/python/usrp/Makefile.am +++ b/gnuradio-examples/python/usrp/Makefile.am @@ -27,6 +27,4 @@ dist_ourdata_SCRIPTS = \ fm_tx_2_daughterboards.py \ test_dft_analysis.py \ test_dft_synth.py \ - usrp_benchmark_usb.py \ - usrp_spectrum_sense.py \ - usrp_test_loop_lfsr.py + usrp_spectrum_sense.py diff --git a/gnuradio-examples/python/usrp/usrp_benchmark_usb.py b/gnuradio-examples/python/usrp/usrp_benchmark_usb.py deleted file mode 100755 index 4ea84f764..000000000 --- a/gnuradio-examples/python/usrp/usrp_benchmark_usb.py +++ /dev/null @@ -1,106 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2004,2005 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. -# - -""" -Benchmark the USB/USRP throughput. Finds the maximum full-duplex speed -the USRP/USB combination can sustain without errors. - -This program does not currently give reliable results. Sorry about that... -""" - -from gnuradio import gr -from gnuradio import usrp -from gnuradio import eng_notation - -import sys - -def run_test (usb_throughput, verbose): - # usb_throughput is in bytes/sec. - # - # Returns True or False - - nsec = 1 - stream_length = int (usb_throughput/2 * nsec) # length of stream to examine - - adc_freq = 64e6 - dac_freq = 128e6 - sizeof_sample = 2 * gr.sizeof_short - - usb_throughput_in_samples = usb_throughput / sizeof_sample - - # allocate usb throughput 50/50 between Tx and Rx - - tx_interp = int (dac_freq) / int (usb_throughput_in_samples / 2) - rx_decim = int (adc_freq) / int (usb_throughput_in_samples / 2) - - # print "tx_interp =", tx_interp, "rx_decim =", rx_decim - assert (tx_interp == 2 * rx_decim) - - tb = gr.top_block () - - # Build the Tx pipeline - data_src = gr.lfsr_32k_source_s () - src_head = gr.head (gr.sizeof_short, int (stream_length * 2)) - usrp_tx = usrp.sink_s (0, tx_interp) - tb.connect (data_src, src_head, usrp_tx) - - # and the Rx pipeline - usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK) - head = gr.head (gr.sizeof_short, stream_length) - check = gr.check_lfsr_32k_s () - tb.connect (usrp_rx, head, check) - - tb.run () - - ntotal = check.ntotal () - nright = check.nright () - runlength = check.runlength () - - if verbose: - print "usb_throughput =", eng_notation.num_to_str (usb_throughput) - print "ntotal =", ntotal - print "nright =", nright - print "runlength =", runlength - print "delta =", ntotal - runlength - - return runlength >= stream_length - 80000 - -def main (): - verbose = True - best_rate = 0 - usb_rate = [ 2e6, 4e6, 8e6, 16e6, 32e6 ] - #usb_rate = [ 32e6, 32e6, 32e6, 32e6, 32e6 ] - # usb_rate.reverse () - for rate in usb_rate: - sys.stdout.write ("Testing %sB/sec... " % (eng_notation.num_to_str (rate))) - sys.stdout.flush () - ok = run_test (rate, verbose) - if ok: - best_rate = max (best_rate, rate) - sys.stdout.write ("OK\n") - else: - sys.stdout.write ("FAILED\n") - - print "Max USB/USRP throughput = %sB/sec" % (eng_notation.num_to_str (best_rate),) - -if __name__ == '__main__': - main () diff --git a/gnuradio-examples/python/usrp/usrp_test_loop_lfsr.py b/gnuradio-examples/python/usrp/usrp_test_loop_lfsr.py deleted file mode 100755 index 696c1a24c..000000000 --- a/gnuradio-examples/python/usrp/usrp_test_loop_lfsr.py +++ /dev/null @@ -1,62 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2004,2007 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. -# - -""" -Digital loopback (Tx to Rx) for the USRP Rev1. -""" - -from gnuradio import gr -from gnuradio import usrp - - -def build_graph (): - tx_interp = 32 # tx should be twice rx - rx_decim = 16 - - tb = gr.top_block () - - data_src = gr.lfsr_32k_source_s () - - # usrp_tx = usrp.sink_s (0, tx_interp, 1, 0x98) - usrp_tx = usrp.sink_s (0, tx_interp) - - tb.connect (data_src, usrp_tx) - - usrp_rx = usrp.source_s (0, rx_decim, 1, 0x32103210, usrp.FPGA_MODE_LOOPBACK) - - sink = gr.check_lfsr_32k_s () - tb.connect (usrp_rx, sink) - - # file_sink = gr.file_sink (gr.sizeof_short, "loopback.dat") - # tb.connect (usrp_rx, file_sink) - - return tb - -def main (): - tb = build_graph () - try: - tb.run() - except KeyboardInterrupt: - pass - -if __name__ == '__main__': - main () |