Lawrie Griffiths

Fomu has been supported for some time - see https://github.com/SpinalHDL/SaxonSoc/blob/dev/hardware/scala/saxon/board/fomu/FomuMinimal.scala I was planning to add support for Xip on the board as well and asked Sean Cross a question about...

For SPI, I currently have one selection signal that switches all the pins. But for some other peripherals it would be better per I/O. For example I have PWM and...

There is already a simple version for the iCEBreaker - see https://github.com/SpinalHDL/SaxonSoc/tree/dev/hardware/synthesis/icebreaker It is the same as the Up5k evaluation board example, apart from the synthesis.

But there does seem to be a problem with that TopLevel.scala has segdis as 11 bits, but a 4 digit display needs 12 bits - hence the width mismatch error....

Yes, I have changed the code to work for a 2-digit display and that is currently building OK. I probably will make the change to remove the decimal point. I...

Another thing that would be helpful would be to document which functions (IN, LOAD, RUN, MEM PROTECT) corresponding to switches 8, 9, 10 and 11. I am currently trying to...

My version seems to be mainly working now. I am not sure about the uart. I have emulated your uart implementation with separate Rx and Tx controllers, but that duplicates...

I have corrected the problem I had with the hex digits reversed now.

I did try an FPGA implementation of the CHIP-8 CPU on a TinyFPGA BX board using an Oled display and played a few games on it -see https://github.com/lawrie/fpga-chip8 You can...

I notice that one of the patent holders, Luke Wren (https://github.com/Wren6991), is watching this repository._