Issue with PWD13F60 driving dc brushed motor

[DZhou.4]

I am using a EVALPWD13F60 and a stm32f103c8 bluepill to drive a small DC brushed motor. When duty cycle is above about 30%, the motor starts to oscillate. I couldn't figure what's wrong with my circuit and code. thanks.

[Cristiana SCARAMEL]

Hello @DZhou.4​ and welcome to the ST Community.

For a better support please share your application schematic.