[USRP-users] x300 fw communication failure #1

Marcus D. Leech patchvonbraun at gmail.com
Tue Mar 12 09:48:07 EDT 2019

On 03/12/2019 05:02 AM, Armin Schmidt via USRP-users wrote:
> Hallo Guys,
> We use an x310 device with ubx-160 daughterboards and we have several 
> custome RFNoC blocks on it. It works at the moment quite well but we 
> get at the end of the make() for a multi-usrp the following error:
> [ERROR] [X300] <>: x300 fw 
> communication failure #1
> EnvironmentError: IOError: x300 fw poke32 - reply timed out
> It seems not to hurt us, but maybe we didn't detected the problem till 
> now :/
> Does someone know, why this error happens? Actually we had an 
> FPGA-image without a ddc-block and there was no problem. But after we 
> also integrated the ddc-block, because we needed to manipulate the lo, 
> we got this error. Actually we've got the error twice, also after 
> initializing the radio-ctrls. But there we could solve the problem by 
> introducing a 1s wait until further initializations. So it seems, 
> maybe it's a bug in the make(), because they do not wait somewhere 
> enought long before further initializations? I have after the make 
> already a wait of 1s and also 2s didn't changed anything.
> Many thanks for your help!
> Armin Schmidt
Do you get the same behavior with a "stock" FPGA image?   What version 
of UHD are you basing your RFNoC work on?

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