Hi Matt and all, I am afraid my usrp is broken. It was working fine a few hours ago. I was looking at a spectrum (fftwin) using the tvrx. Suddenly the spectrum went down (samples went to zero) and they never returned to normal values since. I was using the tvrx in RXB in RXA was the basic RX in TXA was basic TX TXB was empty.
I tried it both under linux and windows. Same results mostly zeros. Not all samples are zero though. Mostly I see zeros, sometimes I see a block of normally looking samples and then a block of samples which keeps repeating itself like 00 00 00 40 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 40 00 00 00 00 One of the tests I ran was rx_cfile.py (I happened to run this on windows) TVRX was this time in RXA (with a connected antenna) $ ./usrp_rx_cfile.py -m 0xf0f0f0f0 found 5 busses $ mv usrp_rx.dat usrp_rx_mux_0xf0f0f0f0_tvrx_in_rxa_problems2.dat $ bzip2 -z -k usrp_rx_mux_0xf0f0f0f0_tvrx_in_rxa_problems2.dat see http://www.olifantasia.com/pub/projects/gnuradio/mdvh/usrp_problems/ for the compressed file with the samples (Beware: although the compressed file is only 18k (because of all the zeros) it will expand to 376 MB.) check counting seems to work though. Although it seems it takes quite some samples before it finds LOCK. +6V and +3.3 V are all there. The led blinking seems normal to me. first led blinks fast second led blinks 1 time (about a second) first led blinks slow I thought maybe the soldering of the shorted resistor (which we did on what-the-hack) on the extra clock board failed but with a multimeter I measure 0.7 ohm across the short. Any ideas what might be wrong or where to check/measure? Greetings, Martin _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
