Originally Posted by
James Newton
I don't see anything at telepicdata about controlling a stepper motor with a PIC... he uses a L6208N... I guess the PIC generates the step and direction pulses for that, but that doesn't have anything to do with microstepping..
The embeddedtronics project, again, is not using the PIC to microstep. It uses a LMD18245 and the PIC just sends step and direction.
Same again with the ST app note...
The Linistepper DOES use a PIC to generate the microstepping levels, and the current feedback is an important part of good high speed operation, but it is NOT required for the generation of microsteps.
Getting back to the original posters question: What is it about the Linstepper that is confusing? Can I help to explain something?