Thanks Rob. I have registered the issue in https://github.com/EttusResearch/uhd/issues/367 and nagged their support email.
Andreas. From: Rob Kossler <rkoss...@nd.edu> Sent: 25. august 2020 15:59 To: Bertheussen, Andreas <andreas.bertheus...@kongsberg.com> Cc: usrp-users <usrp-users@lists.ettus.com> Subject: Re: [USRP-users] Issues with multi-usrp and UHD Hi Andreas, You might want to verify that benchmark_rate also misbehaves if you use "--ref=external --pps=external". I wasn't able to do this because I don't have an external reference handy. Regarding reporting of the bug, you could do so with gihub as you suggested, but I have been lazy in the past and just sent an email to "supp...@ettus.com<mailto:supp...@ettus.com>". This generally just causes them to create the issue. Regarding UHD logging, take a look at this link<https://urldefense.com/v3/__https:/files.ettus.com/manual/log_8hpp.html*loghpp_logging__;Iw!!L8f3-wPVSng!S9U4pGFMepWOhBZhYhMgM4Eo2h_07u38lX5tJPAyLiWoNH0NpuAgOZuZcxpPHq1XSw3UQgcn0A$>. Below are the commands I used in Ubuntu prior to running the program. This capability should work with any program that uses UHD including your custom program. For my own custom program, I also use the UHD logging commands in my source code such as UHD_LOGGER_INFO() and UHD_LOGGER_DEBUG() to print messages to the user rather than using std::cout. export UHD_LOG_LEVEL=trace export UHD_LOG_CONSOLE_LEVEL=trace export UHD_LOG_FILE_LEVEL=trace export UHD_LOG_FILE=uhd.log Rob On Tue, Aug 25, 2020 at 8:21 AM <andreas.bertheus...@kongsberg.com<mailto:andreas.bertheus...@kongsberg.com>> wrote: Rob I ran benchmark_rate --args=="addr0=192.168.10.2,addr1=192.168.110.2" --tx_rate 5e6 --tx_channels="0,2" And I observed the same issue I described earlier – mostly that ether channels 0,1 or channels 2,3, or very rarely channels 0,2 get enabled. When I add “skip_dram=1” to args, the channel mapping is correct! It is prone to underruns but now I can proceed a bit further with my UHD software. How did you make the trace log? And did you do it to my program or to the benchmark_rate program? It is definitely a severe issue I would expect to be fixed, so I will report it. Is creating a Github issue the proper avenue? Many thanks for helping track this down, Rob! Regards, Andreas. ________________________________ CONFIDENTIALITY This e-mail and any attachment contain KONGSBERG information which may be proprietary, confidential or subject to export regulations, and is only meant for the intended recipient(s). Any disclosure, copying, distribution or use is prohibited, if not otherwise explicitly agreed with KONGSBERG. If received in error, please delete it immediately from your system and notify the sender properly.
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