I'm developing against a RADDS + Due. I've just ordered a RAMPS clone on AliExpress and I'll try to test against that too once it arrives.Are you guys using the original Watterott stepsticks or chinese replicas?
Just as a side node since it will not help for now - in firmware 2.0 I plan to add the concept of stepper driver classes, so it would get quite easy then to add things like spi configuration of steppers. The current design makes it not that easy to add special features in a general way.
@niocio01 was that for me?