when I set PWM signal 100% duty, the motor's full speed is 2800rpm, and the current is about 37A, I adjust PWM duty
= 10% let motor to stop, then i will adjust PWM duty = 100% suddenly, Repeat a few times（run--stop---run------）as
soon as possible, after this GDU will broken. After I changed a new MCU, it will work.
what reasons can cause this problem?