MiSTer FPGA Forum

Understood.
Works.
Thank you !!!

I popped in a feature request ticket for adding RTC support into the core, for visibility if a developer is looking to update the core:

https://github.com/MiSTer-devel/SAM-Cou ... r/issues/1

The original SAM Coupés have been given RTC support via an add on:

https://www.worldofsam.org/products/sambus

There is also the Dallas clock https://www.worldofsam.org/products/dallas-clock (this link includes schematics)

Here's the SAM Coupé core with the patch to use a keyboard layout similar to the original, rebased on top of latest version.

Edit: The source code of the modifications is the same as the one upthread (this one); the same patch is just applied to the latest version. I hope that suffices for GPL compliance.

Some CP/M dsk images began to work !
It's nice !!

That was probably pure chance, I didn't do anything to fix it, but if there are timing critical sections, just a recompilation may have made the trick due to the randomness in the compiler. I've just implemented a keyboard patch, that's all.