Re: TOS-100 stepper driver (autodiagnostics, up to 1/256steps etc.) why nobody tried?

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smilem
but it's more than 32 microsteps too

With the frequency most of the Arduinos run at, I thought I saw the max step frequency to be around 4000 per second. That works out nice with a 1.8 degree stepper (200 steps per rotation) with 1/16th microstep as 3200 leaves plenty of wiggle room for a rotation per second. Going up to 32 you can't do a full rotation in per second. You'd have to slow down the rotational speed to ~1/14 what you could with 1/16th stepping. So while your microstepping accuracy goes way up, your speed goes way down. And I'd honestly have serious questions as to the accuracy of 1/256 microsteps with the NEMA 17 motors we usually use.