ColorCNC Colorlight 5A-75E/5A-75B as FPGA controller board

This is the topic to discuss my contribution into Linuxcnc. The project is named "ColorCNC" because it's a firmware driver for Chinese board Colorlight 5A-75B, which was originally intended for control of LED video screens.A lot of stuff about this board is discussed here: github.com/enjoy-digital/colorlite and here: github.com/q3k/chubby75 My firmware is based partly on the liteeth project github.com/enjoy-digital/liteeth and partly on known pluto-p firmware from Linuxcnc repo. As of now, it implements in this $15 board:6 step generators24 di12 do3 pwmUnused possibilities:risc-v CPU synthesized processor core (provides 32 bits, 50 MHz CPU)and2M*16 SDRAM (totally 4 Mbytes of memory)It's open source and highly configurable. The firmware is built using yosys nextpnr toolchain.

That looks rather intriguing, thanks.

Any more info pinout etc ? I would love to give it a try Thanks for the MESA alternative.

That's very interesting,
I'm running my mill with a raspi + uC board and I was considering to switch to an FPGA.
Any more infos/source?
I'd like to try.
Fabio

github.com/LinuxCNC/linuxcnc/pull/1422

how many logic elements does it use? I have to look into it more, but this could be used with the common ice40 fpgas' could it not?

Maybe we should put this into a dev branch and clean it up and test this out for a while.