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teemuatlut / TMC2130Stepper

Arduino library for Trinamic TMC2130 Stepper driver
MIT License
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Enable/Disable driver via SPI #70

Closed orkunkilinc closed 5 years ago

orkunkilinc commented 5 years ago

Hi guys,

I did not route the EN pin of the stepper on my PCB thinking I won't need it and did not have enough pins either.

Now there is a scenario where I need to disable the driver so the motor can spin freely by hand.

I read the datasheet for tmc2130 and also went through the registers in the library but couldn't come up with something.

I tried setting the both rms_current and hold_current multiplier to 0 but the coils are still energized. I know the driver does not turn on before we call begin() so there should be a way to disable it somehow.

Any ideas? Regards Orkun

teemuatlut commented 5 years ago

Set off time to 0 to disable the driver.

orkunkilinc commented 5 years ago

Awesome, thank you!

I'm closing the issue, but while fiddling with off_time I realized on the main page function descriptions it says:

Sets off_time = 2 and blank_time = 24

but in TMC2130Stepper.cpp under begin() it says:

toff(8); //off_time(8); tbl(1); //blank_time(24);

Just a heads up.