The method of STM32 measuring high frequency·100K-120K with input capture has a large error. Which method is better to measure? Who has a reference code or idea to talk about?
Bernadette 發表於 November 27, 2020
The highest cpu frequency of stm32 is low, and it takes a lot of time to process the interrupt loop, and the calculation is not fast enough!
Hilary 發表於 November 27, 2020
How do you define your big error? I just tried a 100k input capture error of about 400 yesterday.
Rick 發表於 November 27, 2020
High frequency, generally use counting method.
