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gin66 / FastAccelStepper

A high speed stepper library for Atmega 168/328p (nano), Atmega32u4, Atmega 2560, ESP32, ESP32S2, ESP32S3, ESP32C3 and Atmel SAM Due
MIT License
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MKS TMC 2160-OC Stealth mode abnormal symptoms... #146

Closed MuKwang closed 1 year ago

MuKwang commented 1 year ago

I'm using it by connecting to MKS TMC 2160-OC

There is no problem in normal mode, but the noise of the motor increases a lot when used in stealth mode.

I'd like to know if it's a problem with MKS TMC 2160-OC or how it can be done in the FastAccelStepper library.

It's okay at low speeds, but the motor makes a grinding sound when the accel value increases.

gin66 commented 1 year ago

That IC seems to be quite configurable. From the data sheet it says: DIR Interface The motor is controlled by a step and direction input. Active edges on the STEP input can be rising edges or both rising and falling edgesas controlled by another mode bit (dedge).

So make sure, that STEP is performed only on low to high transition of the step pin. This edge is controlled well by the FastAccelStepper, while the high to low transition is not. The latter may cause noise. In addition please choose a high micro stepping value.

Anyway, I have no experience with that driver, so this is just a bold guess.

MuKwang commented 1 year ago

Well, 64 is the best for microsteps, but it doesn't seem to change much even if you raise it. OTL...

gin66 commented 1 year ago

Good. Unfortunately I cannot help you here. In case you find a solution or root cause, please post it here,

For now can close this issue.