Hi! I changed PWM frecuency from 20Khz to 70Khz but the CPU use was very high (about 98%). So I add a counter inside ADC1_IRQHandler before call rda_push_int(); and now the CPU use is 51%.
I ran the motor to 30KRpm and everything was ok, but when I configure the motor to 60KRpm, after two minutes, the D3 mosfet has broken. It's happened two time.
does anybody know why?