Re: packet_loopback_hier OTA problem

Hi Jack,

the background shows that there's regular underflows. This might be a bug, or your
computer being overtasked. Could you run e.g. `htop` or `top` to check how loaded your
CPUs are?

Best regards,

Marcus

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On 07.07.21 19:22, jack houston wrote:
> When running the packet loopback example, from version 3.10, it works as expected
> without SDR involvement. However when using an SDR sink and source I have no luck with
> it working. I have tried using different configurations of sdrs, frequencies and gain
> values all known to be working on other topologies. As an example, I can use my Ettus
> B205 on a OFDM packet topology using BPSK and can correctly send and receive packets bar
> some padding issues. Using the same UHD with similiar bit rate and gain values on the
> packet_loopback_hier example yields nothing.
> The only error I that I've received is a ursp sink underflow error which should be
> irrelevant. Included is a link of a screenshot of the example file running. I was told
> by a colleague that the example has been broken for a while, but if it works under
> simulation I don't believe thats the case. From what I can tell something is not
> correctly working on the RX side of the topology, either at the PCS or the HPD. If
> someone has any knowledge about the example file and what could be causing it to not
> work in my case, I would be delighted to hear about it.
>
> File running: https://imgur.com/a/orVuSZ5 <https://imgur.com/a/orVuSZ5>