Driver+Firmware+PCB for Pi RP2040 PIO (i.e. an easy-to-configure FPGA-like card)

I keep meaning to buy some and work on getting SmartSerial working on the PIOs. Then it would be trival to make special-purpose peripherals and no new driver would be needed at the LinuxCNC end.

Hi

I'm very interested in this project. Anyone already using it? 
I would be happy to help

It would be really great if you make this project open source!

andypugh wrote:

I keep meaning to buy some and work on getting SmartSerial working on the PIOs. Then it would be trival to make special-purpose peripherals and no new driver would be needed at the LinuxCNC end.

Or what if we connect it via a serial port to the PC? Haven't calculated but I can imagine that it can achieve a reasonable update rate if setting the baud rate high enough.

Or have it as a low cost or space saving solution: Connect it to a RPi 4 or similar via SPI. For 3D printers and similar.

Any news, updates or open source git repo, etc. etc. for this project?

It's a great idea but of far less interest if it is just a closed source project.

Have you started a git repo for this yet Andy?

"I keep meaning to buy some and work on getting SmartSerial working on the PIOs. Then it would be trival to make special-purpose peripherals and no new driver would be needed at the LinuxCNC end. "

I would be interested if this was developed. My CNC runs a Gecko540 from the parallel port of a old over clocked Hasswell computer. Having more modern hardware options would be great. I’ve looked at driver boards but the postage from the US to Australia almost doubles the price and now the Raspberry pi4 has taken over.

srl