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

The JSON file has been uploaded.

ahh, sorry, you need to set the scale (signals/dty)

if your spindle max speed is 20000rpm, you need to set it to 0.005
# 100 / 20000 = 0.005

EDIT: will try to add a little helper-tool for easy setup

Thank you for your help. The spindle PWM pin is now working.

         

I have a question.
At github.com/multigcs/riocore/blob/main/ri...ugins/fpga/BOARDS.md TangNano1K is marked as supported.
I know 1k gates is few, but is supported.
But I can't find any stuff for this board at repository.
I wonder is it possible to use this as one axis controller.
For example in situation when somebody have got working machine and could not make any changes to it, but needs to add 4/5th axis, rotary table, tools magazine or something similar.

You’re right, it’s actually too small for a full setup.

But you could use it, for example, as a satellite, as an extension or for a distributed setup.

www.youtube.com/shorts/2vjq0Kd5WOE


In principle, a single-axis setup would also work, though it’s always a bit tricky to have mixed setups.

I’ve done a test compile:

---

Resources | Usage | Utilization

---

Logic | 956/1152 | 83%

and it fits

with USB/Serial it's to slow.



EDIT: BTW, the boards in the list are just the ones that have pre-defined pin assignments and can therefore be used easily in the Flow frontend. However, it’s also quite easy to add new boards, or you can let me know which ones you’d like to see included – as long as the FPGA supports them, it’s no problem.

Thanks, heaps, for the info. I have a working config for Ethercat on my raspberry pi 5, So I will play around with connecting a tang 9k to the spi on the pi and see how I go. I will post more info if/when i get it working.
Thanks again.
Andrew

meister wrote:

or you can let me know which ones you’d like to see included – as long as the FPGA supports them, it’s no problem.
 

I'm sorry I'm not kindly to you, but your very hard work will be useless, if you have important things in secret.
For example you adviced in github md "than copy a config file that is near to your setup", but there are no tangnano1k setups in github, but I see you have some setups for this board , because you show about it on YouTube...
Share your configs, please.

Sorry, but I can’t exactly create a sample for each of the 100,000 possibilities.
But it’s not difficult to create a configuration from scratch.

meister wrote:

Sorry, but I can’t exactly create a sample for each of the 100,000 possibilities.
 

I don't ask you for all possibilities, but only for share configs you used for your tests.

DIR/PULSE is working fine, problem solved, thank you!!
I'm using the DM542 Microstep Driver shown in the photo, with a Tango Nano 9k FPGA. After executing a set of gcode in Linux CNC, there's an error in returning to the zero-point position. However, I can correctly return to the zero-point position using a Mesa7i92.