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Re: [Discuss-gnuradio] USRP harware problem?
From: |
yyzhuang |
Subject: |
Re: [Discuss-gnuradio] USRP harware problem? |
Date: |
Fri, 21 Nov 2008 13:17:53 -0800 (PST) |
step 3) the control software access the device entry correctly?
good box
/gnuradio/gnuradio/gnuradio-examples/python/usrp$ ./usrp_benchmark_usb.py
Testing 2MB/sec... usb_throughput = 2M
ntotal = 1000000
nright = 999452
runlength = 999452
delta = 548
OK
Testing 4MB/sec... usb_throughput = 4M
ntotal = 2000000
nright = 1999583
runlength = 1999583
delta = 417
OK
Testing 8MB/sec... usb_throughput = 8M
ntotal = 4000000
nright = 3998943
runlength = 3998943
delta = 1057
OK
Testing 16MB/sec... usb_throughput = 16M
ntotal = 8000000
nright = 7999584
runlength = 7999584
delta = 416
OK
Testing 32MB/sec... usb_throughput = 32M
ntotal = 16000000
nright = 15998150
runlength = 15998150
delta = 1850
OK
Max USB/USRP throughput = 32MB/sec
bad box:
/gnuradio/gnuradio/gnuradio-examples/python/usrp$ ./usrp_benchmark_usb.py
Testing 2MB/sec... Traceback (most recent call last):
File "./usrp_benchmark_usb.py", line 106, in <module>
main ()
File "./usrp_benchmark_usb.py", line 96, in main
ok = run_test (rate, verbose)
File "./usrp_benchmark_usb.py", line 63, in run_test
usrp_tx = usrp.sink_s (0, tx_interp)
File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 228,
in __init__
_ensure_rev2(which)
File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 83,
in _ensure_rev2
v = _look_for_usrp(which)
File "/usr/local/lib/python2.5/site-packages/gnuradio/usrp.py", line 77,
in _look_for_usrp
raise RuntimeError, "Unable to find USRP #%d" % (which,)
RuntimeError: Unable to find USRP #0
can anybody help us out? thanks a lot!
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