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From: | Nowlan, Sean |
Subject: | Re: [Discuss-gnuradio] E100 problem |
Date: | Tue, 22 May 2012 18:35:42 +0000 |
I downloaded a fresh e1xx-003 image today and flashed it to the microSD card. I’m still not having any luck running benchmark_tx on the e100. I tried: ./benchmark_tx.py -a “type=e100” -m bpsk -p 2 -r 100000 --tx-gain=0 --non-differential --tx-freq=925000000 --tx-amplitude=0.5 I see a small CW at 924 MHz, which I suppose is the LO, but no waveform appears at all. Has anybody else seen this behavior? There is no feedback from the system about overruns, underruns, etc., just dead silence
on the spec analyzer. Sean From: discuss-gnuradio-bounces+address@hidden [mailto:discuss-gnuradio-bounces+address@hidden
On Behalf Of Nowlan, Sean Hi all, I’m trying to run benchmark_tx.py on an E100 (rev.3). When I do, I get a bunch of “S” symbols printed to the screen and nothing shows up on the Spec Analyzer except a CW that appears for an instant and then dies. The reported sample rate
is 800ksps. I’m not sure what’s going on. Here’s the command I used: ./benchmark_tx.py -f 910000000 --tx-amplitude=0.3 --non-differential -v --tx-gain=0.0 --args=”type=E100” -m bpsk -r 400000 The output of uhd_usrp_probe is attached. This is the e1xx-003 release. uname -a gives: Linux usrp-e1xx 3.0.0 #1 Mon Mar 26 04:45:32 PDT 2012 armv7l GNU/Linux Thanks for your help! Respectfully, Sean Nowlan |
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