stepper motor minpulse width

[hjoungjoo]

Hello. I'm making an OAT. The firmware is up to date on the MKS Gen L V2.1 board. I'm going to use the motor as the Close loop motor I had. It works with the same input as A4988. So I tested it, but it didn't move, so I checked it. Result. Minimum pulse width is too small to be recognized. I tried to modify the source, but I don't know where to modify it.

Thank you for your help.