I tested all five of our N310's with 1.92 MS/s at the master clock of 122.88 MS/s with no issues.
64 is an even multiple so it should be fine. Normally I would blame this kind problem on NIC or settings of said NIC but you get good performance on higher sample rates and errors on lower rates. On Tue, Jan 22, 2019 at 10:42 AM Ali Dormiani <sdorm...@eng.ucsd.edu> wrote: > Hmm that is odd. > > I run wave-forms at 1.25 MS/s with a master clock of 125 MS/s just fine. > > Will try your sample rate and master clock and see if I can reproduce. > > On Tue, Jan 22, 2019 at 10:31 AM Bandi Bandi via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> Hello Marcus, >> >> This is from a PC host. UHD version is 3.13.0.1. >> >> Thanks, >> Bandi >> >> On Tue, Jan 22, 2019 at 11:28 AM Marcus D. Leech via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> >>> On 01/22/2019 10:50 AM, Bandi Bandi via USRP-users wrote: >>> >>> Hello Everyone, >>> >>> We have experienced sequence errors with N310 running benchmark_rate >>> test with 1.92 MS/s: >>> >>> benchmark_rate --args >>> "type=n3xx,mgmt_addr=192.168.10.2,addr=192.168.10.2,second_addr=192.168.20.2,master_clock_rate=122.88e6" >>> --channels="0,1,2,3" --rx_rate 1.92e6 --rx_subdev "A:0 A:1 B:0 B:1" >>> --tx_rate 1.92e6 --tx_subdev "A:0 A:1 B:0 B:1" >>> >>> Benchmark rate summary: >>> Num received samples: 80086604 >>> Num dropped samples: 0 >>> Num overruns detected: 0 >>> Num transmitted samples: 115871184 >>> Num sequence errors (Tx): 391 >>> Num sequence errors (Rx): 0 >>> Num underruns detected: 0 >>> Num late commands: 0 >>> Num timeouts (Tx): 0 >>> Num timeouts (Rx): 0 >>> >>> If we run the same benchmark_rate test with 12.288 MS/s or higher >>> sample rate, we have no issues. >>> Has anybody experienced something similar? Or does anybody has any idea >>> what could be the reason of it? >>> >>> Thanks in advance. >>> >>> Regards, >>> Bandi >>> >>> >>> Is this from a PC host, or on the N310 itself? >>> >>> What versions of UHD are you running? >>> >>> >>> _______________________________________________ >>> USRP-users mailing list >>> USRP-users@lists.ettus.com >>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >>> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >
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