@MrBaz
"1:256 microstepping is just WAY too much for an 8 bit AVR to process." agreed if it was really doing that
The TMC2100 input is still full step, 1/2 step, 1/4 step or 1/16 micro stepping externally, but internally it uses Interpolation and generates 1/256 microstepping
This is how is achieves its "quietest Pololu compatible stepper motor drivers" status
"1:256 microstepping is just WAY too much for an 8 bit AVR to process." agreed if it was really doing that
The TMC2100 input is still full step, 1/2 step, 1/4 step or 1/16 micro stepping externally, but internally it uses Interpolation and generates 1/256 microstepping
This is how is achieves its "quietest Pololu compatible stepper motor drivers" status