[Libre-soc-dev] Unexpected clock connexions.

Luke Kenneth Casson Leighton lkcl at lkcl.net
Fri Jun 4 13:05:15 BST 2021

Jean-Paul wrote:

>   If the clock is badly connected, I should be able
> to see it in the P&R layout

thanks to Staf for making me think, we worked out that making no
attempt to use nmigen Clock Domains "fixed" rhe problem.

also, Staf noticed that the peripherals have to be run at the PLL speed.

this was where the majority of DFFs at the wrong speed would have come from.

only the RESET line should now cross domains, and it should go through


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