LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

Replying to spumco:

Really don't want to clutter up this thread with a digression as meister's project is some really fantastic work, but this is exactly what the RPI4 image for Remora and FlexiHAL is addressing.

While I am sure you have your own ideas for hardware design, you may find the FlexiHAL an interesting starting point, the design is open and everything is posted. It would not be hard to adapt it to the ICE40 instead of STM32.

meister wrote:

And try to write the documentation for users, not for developers.


 

No, thank you.  And all the other hardware/software gurus here, too.

Genuinely appreciate all the efforts to make LCNC more accessible to us Luddites.

Nice work. I'm very happy to see more options.
I have some Mesa boards and they are great, but cost of postage from US is a killer.

Not being that Linux savvy, I haven't yet tried an ARM board (RPI4/Orange Pi). These boards have SPI / i2c / feasible ways of interfacing between LinuxCNC and a hardware realtime board.

To me there is still a gap in realtime options for use with x86/standard PCs. 
These days ethernet is the only consistent feasible port option, and currently that means Mesa or Pico only I believe.

Network support is the next thing I'd like to include, but it's unfortunately not that easy in a hardware-only design .

i will have a look at FlexiHAL, but FPGA's are not comparable to MCU's and i wanted to avoid to include a soft core

I have add UDP-Support via extrernal UDP2SPI Bridge, works
github.com/multigcs/LinuxCNC-RIO/tree/ma...Bridge/ESP32-PoE-ISO