Hi Ivan, The Fosphor block averages and then significantly decimates the FFT output. With the default settings, it has an output data rate comparable to a 500 kSPS stream. The Fosphor example is also only one channel.
I would suggest starting at a rate of 100 kSPS and increasing from there. The E310's ARM processor has very low performance compared to a desktop processor. It is mostly meant for overhead tasks and low rate DSP (100s kSPS range). High rate DSP should be implemented in the FPGA fabric. Jonathon On Sat, Nov 21, 2020 at 6:54 AM Ivan Zahartchuk via USRP-users < usrp-users@lists.ettus.com> wrote: > I was setting samp_rate to 1 msps and observed the same situation. In > addition, in the example fosphor samp_rate = 56 msps and no errors occur. > > > > сб, 21 нояб. 2020 г. в 05:12, Marcus D Leech <patchvonbr...@gmail.com>: > >> There’s no way the fpga to ARM channel can support those data rates. >> Lower your sample rate to 5msps and try again. >> >> Sent from my iPhone >> >> > On Nov 20, 2020, at 10:02 PM, Ivan Zahartchuk via USRP-users < >> usrp-users@lists.ettus.com> wrote: >> > >> > >> > Hello, I want to launch two channels for receiving in parallel with >> usrp e310 rfnoc. But on startup, I get an overrun error. What I need is >> uninterrupted data transmission for phase analysis on both channels. How >> can I do this? >> > <Снимок экрана от 2020-11-21 04-50-17.png> >> > >> > <Снимок экрана от 2020-11-21 04-52-21.png> >> > >> > _______________________________________________ >> > 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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