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

only the onboard mii chips do not run, the w5500 runs with all boards and toolchains.

the programmer on the additional board is very slow, better use a USB blaster to access the JTAG pins, it works great with openFPGAloader

I would prefer the i5, it has the ECP5 on it and is best supported. It's also so big that you won't get it full

Cheers,
Olli

OK cool, thanks for that, I think I'll try it out. The tangnano is doing the job nicely so far but runs out of pins quickly when you include 4 axis closed loop with index pulses.

Cheers.
Russell.

another option would be shiftregisters,
this works great for DC-PWM signals and also for not too fast encoders, but you should test it first.
my favorite at the moment is the Devantech iceWerx iCE40-HX8K, which has many IO's and can also be soldered well by hand

www.youtube.com/shorts/BiJppd6_cA4

github.com/multigcs/rio-motoman

got the Yaskawa encoder to work
www.youtube.com/shorts/YpUjbus9lQc

The ICE40 module is very nice, unfortunately for us living in Australia the $34 module has an $86 shipping fee, then converted to AUD it will be close to $190 AUD...the ECP5 kit will land here for about $100, and has a lot more IO. 

When you say programming the ECP5 is slow, is that via USB within Riocore and are we talking minutes or half an hour ? I can stock extra coffee ! image missing /media/kunena/emoticons/w00t.png

Cheers.
Russell.

don't really remember, maybe 1 minute, but a USB blaster for 5USD is worth it