Hi Lautaro, When you run embedded, what is the version that runs? I am wondering if your embedded file system (and also MPM version) is old and does not match the UHD version 4.1.0.5 that you are using on a host workstation. If this is the case, perhaps reload the file system using "dd" (don't use bmaptool). Another thought would be to try benchmark_rate with 2 channels tx and 2 channels rx (at a slow rate) and see if the lights come on. Rob
On Wed, Apr 13, 2022 at 12:33 PM Lautaro Lorenzen < lorenzen.laut...@gmail.com> wrote: > Hi everyone, > > I'm trying to run a simple example on an Ettus E310. > I'm using an E312 with UHD 4.1.0.5 and gnuradio v3.8.0.5. > > Everything seems to work okay, but I can not manage to get the second > channel (TRX-B) to transmit anything. FYI: I can receive from both channels > RX-A and RX-B. > The problem came up when I tried to transmit something via gnu-radio, > changing the "subdev" arg to "A:1" instead of leaving it blank as I > normally do. > When I pressed start, everything seemed to compile fine, but the GUI > freezes (something that did not happen when using TRX-A). > > To see if gnu-radio was the problem, I logged in the embedded linux and > tried some uhd examples from usr/lib/uhd/examples. > As expected, I ran ./tx_waveforms --rate 1e6 --freq 100e6 --subdev A:0 > and the tx light turned on and I could see something on my oscilloscope. > Also, a few "LLLLL" appeared on the console. > > When I ran: > ./tx_waveforms --rate 1e6 --freq 100e6 --subdev A:1, everything looks the > same but no light, no signal, and no "LLLLL" are displayed on the console. > Just the message "press ctrl+C to stop streaming". > > Any help would be very much appreciated. > Regards, > Lautaro. > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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