TCal

> @tcal-x -- Non-deterministic failures are normally cause by timing not being met. Any idea why timing failure wasn't caught? @mithro , it should have occurred to me sooner. Only...

After discussion with TimA, we've decided that not meeting timing should be a hard error, but one that can be overridden temporarily.

The LiteX target for iCEBreaker-bitsy doesn't have UART support, so that would need to be added.

There's also https://github.com/sbt/sbt. I haven't tried it.

We should add a RTD page that describes how to install the SymbiFlow packages. We can probably just copy the instructions from Symbiflow Examples, https://symbiflow-examples.readthedocs.io/en/latest/

Also, add a SymbiFlow build to CI.

@ggangliu thank you for the report. I remember seeing this error elsewhere when LiteX first switched to using meson. My first suggestion is to ensure that all submodules (and *their*...

@ggangliu about XC7Z010-1CLG400C -- I have not yet used that part myself. Is that on the first board that you have, or that will be a second experiment? In the...

@ggangliu I understand. To use a board in CFU Playground, first it needs to be part of [litex-boards](https://github.com/litex-hub/litex-boards/tree/master/litex_boards/platforms), so that would be the first step . If your board isn't...

I suppose the prjoxide executable/database is a potential source of difference as well. If the nextpnr-nexus Conda build in turn uses the prjoxide Conda package, *that* might be a bit...