These are chat archives for machinekit/machinekit

Aug 2017
Aug 04 2017 15:00
what FPGA/SoC Platform do you recommend to build a CNC mill with external Stepperdrivers (I plan to upgrade to either analog/pulse Servos or even EtherCat Servos in the near future)?
At the moment I think that the DE0-Nano-SoC looks very promising but the snickerdoodle also looks very nice. I plan to create a "shield" for the board of choice with optoisolated I/Os and some commen stuff like RS485/RS232 drivers etc.
But I want to go for the "right" board :-)
Bas de Bruijn
Aug 04 2017 16:31
The De0-nano has already proven that it works with an external board like the Mesa 7i76, but you can wire stepper drivers to the fpga pins if you want.
If you want to run on a snickerdoodle then you have to find out if that will work. I suggest you ask the question on the google group list. Because I don't know what effort that takes.
If you want ethercat then you are going into a very specific direction. That has been done, but it's certainly not standard and you should find out if the effort you spend on that is worthwile. Especially if you deviate from known to work hardware.