Hi Dan, What daughterboards are you using?
Thanks, Written Dan Halperin wrote: > > Hi all, > > I'm just beginning grad school and trying to get my USRP board up and > running so I can start playing. I've tested our equipment on two > different machines now; one an older box running FC4, 512MB ram, with an > Intel(R) Celeron(R) CPU 2.40GHz. I've also tried one on a newer laptop > (compaq v3000 series) running Gentoo Linux, with 2GB of memory. I've had > /all kinds/ of interesting phenomena: > > I first tried installing the way on the old wiki > http://www.comsec.com/wiki?UniversalSoftwareRadioPeripheral (first link > on Google for USRP), and then again using the new say (svn source > checkout using the instructions on the new wiki), on both machines. On > the older machine, I don't get any rx/tx over/underruns (or maybe just > one when initializing) and a throughput of 32MB/s in both directions, > and on the laptop I get exactly 41 under/over runs with a throughput of > ~31MB/s in the RX direction and around 24 in the TX direction. As far as > I could tell, these used the same version of the source, but then again > the SVN repository has jumped from rev. 3772 to rev. 3785 since > yesterday morning. > > Anyway, installation, make check, and the ./test_standard_?x scripts > work fine (the LED behaves as expected and the benchmarks seem > reasonable), however I get nothing when running the usrp_oscope or > usrp_wfm_rcv scripts as directed in the instructions. Both dial tone > scripts work fine, by the way. The scope and FM receive scripts run > fine, but I hear just hear/see static. If I set the oscope to 900MHz and > bring my cordless 900MHz phone around, there's no change in the scope. > If I can the entire FM spectrum in the other script, I don't get > anything but static anywhere. My little portable CD player can hear the > radio just fine in this lab, so I figure the foot-long copper antenna > that came with the USRP ought to as well. I don't know a lot about > communications... > > > Also, the different test_digital_loopback and test_counting scripts seem > to not work very well at all. I don't know if they're expected to, but > about 50% of the tests that look vaguely "expected 517, got 0" fail. > > > Is there any advice you can offer as to how to determine what, if > anything, is wrong here? > > Thanks, > > Dan > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > -- View this message in context: http://www.nabble.com/Help-getting-started-tf2432797.html#a6784198 Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
