Forum: GNU Radio Finally, OMAP3 USB numbers

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Bf9f933ba2147185954d9766d9f7c72f?d=identicon&s=25 Philip Balister (Guest)
on 2009-03-24 16:05
(Received via mailing list)
OK, I rebuilt Angstrom with libusb-0.12 ans tested on my Gumstix Overo.
The Overo has a working EHCI host port. (Well after I removed a speck
from the back of the board called R26) Enough about my problems and
eyesight.

Running :

# ./test_usrp_standard_rx -D 10
xfered 1.34e+08 bytes in 5.27 seconds.  2.547e+07 bytes/sec.  cpu time =
3.969
noverruns = 0

# ./test_usrp_standard_rx -D 256
xfered 1.34e+08 bytes in 134 seconds.  1e+06 bytes/sec.  cpu time =
0.2422
noverruns = 0

# ./test_usrp_standard_tx -I 512
xfered 1.34e+08 bytes in 134 seconds.  1e+06 bytes/sec.  cpu time = 5.14
0 underruns

# ./test_usrp_standard_tx -I 24
xfered 1.34e+08 bytes in 6.29 seconds.  2.133e+07 bytes/sec.  cpu time =
5.38
0 underruns

10 is the smallest decimation without overruns and 24 is the smallest
interpolation without underruns. I doubt we can do much at the higher
rates, but the basic numbers look good.

Philip
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