Re: TMC2130 listings on ebay

Howard Dutton

Ok now I understand.  StealthChop and SpreadCycle are "decay modes" (along with fast decay, slow decay, and mixed decay) and control how the driver manages delivering current to the motor coils. 

They have nothing to do with the micro-step mode.  StealthChop is essentially silent no noise but doesn't work well at high RPMs.  SpreadCycle makes some noise but allows the motor to run faster.  Its best to switch into SpreadCycle before slews since StealthChop to SpreadCycle can be like a bump in the road and has to happen at low speed.

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