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

are the pins in the JSON assigned correctly?

Maybe you can file an issue on TOLP2's repo: github.com/Peter-van-Tol/LiteX-CNC/issues

I did several tests with a laboratory power supply.
I connected the power supply to the screw terminals, lowered the voltage and watched whether the plate responds to the pings.
The 75E V8 board worked at 3.3 V, at 3.2 V not.
However, the 75B V8 board worked at 2.7 V, at 2.6 not.
Working on the edge is not a good idea, but I think that FPGA inputs without risk and problem will withstand 3.5 V.
If the boards can be fed with such a voltage, the modification of the inputs would come down to unsoldering the PIN 1 (DIR) of the 245 circuit, bending it up and bridging it with PIN 10 (GND).
This is not as scary as the replacement of SSOT packages.
I don't say it will be working, but it seems possible.

Hello together! I am now making a second 3 axis cnc with Peters Firmware. When I connect the ft232h to upload the firmware there is no response.. (I think I fried it due emv) so I tried with a cheap eeprom programmer (ch431) to write directly to the eeprom of the Colorlight 7a75b and would should I say - It worked  So when somebody is struggeling with the upload of the firmware the eeprom programmer should be a good and cheap solution - Thanks again Peter for sharing and making your Project! If somebody need a bitfile anf the json, let me know - maybe we can upload a bitfile and a json as well on Peters Github repositoy? 

juergenmoser wrote:

I am now making a second 3 axis cnc with Peters Firmware.
 

Could you, please, share your HAL and INI config files ?

Yes, sure I can - but i‘m now at the beginning, so 3 Joints are already work and move, i‘m now setting up the home sensors and the spindle out nets. Tommorow i can upload the Files if you want..