The problem about Buzzer Example

[wangbo13]

About the Buzzer Problem of the RoBomaster C Board Hello After our actual testing the Buzzer example in the C Board Example is problematic. If the buzzer will have a noticeable stuttering sound according to the delay code (delay(10)) in the example, but if you set the delay above 100, the problem will disappear, please verify, thank you.

buzzer_on(psc, pwm); HAL_Delay(1);

It will work by this change buzzer_on(psc, pwm); HAL_Delay(100);

[luoxiaopin]

Thank you. Timer 4 is on APB1, and its frequency is 84MHz. The minimum frequency of the buzzer is 84MHz/(1000+1)/(20000+1), about 4.19Hz. It is best to set the delay greater than 250ms.