On 06/22/2016 11:19 PM, Marcus Müller wrote: > Hi Pavan, > > sorry for not answering earlier. > > So, my main concern here is the fact you're instantly seeing "S"s; these > are /S/equence errors, and they usually only happen if the network > hardware, or software firewall or something similar, reorder packets > coming from the same USRP. > > So, how are your four USRPs connected to your host?
And which USRPs are these? M > > > Best regards, > > Marcus > > > On 23.06.2016 04:36, Pavan Yedavalli wrote: >> Hi, >> >> I am connecting 4 USRPs to the Octoclock and my host CPU, and created >> two of my own blocks (one in python and one in C++), but neither of >> them runs very long, as countless Ss are streamed out and then finally >> Us, which signify underruns and so they stop transmitting. I was told >> that implementing the block in Python would be slower, as expected, >> which could be the reason why my computer is not able to transmit >> samples to the USRPs quickly enough. However, when I tried to >> implement in C++, which is supposed to be much faster, I'm seeing the >> same problem. >> >> One key piece of information is that both the python and C++ >> implementations work about 75% of the time when 2 USRPs are connected, >> but with 4, it fails quickly close to 100% of the time, so it is clear >> that adding more antennas is causing issues, but I don't know what I >> can do about it. My project requires multiple antennas, so this is a >> major problem, unfortunately. Any help would be much appreciated. >> Thank you so much. >> >> -- >> Pavan >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
