TIMER and GPIO PIN

[Nakata]

Hello,
I'm have a Nucleo board with a STM32F334R8T6
I configured a timer with 10kHz and I'm using the HAL_TIM_PeriodElapsedCallback to call a funtion that will control my motor and read some data with the ADC. I want to check the frequency that the controller function hapens, my first idea was to toggle a GPIO pin every time the function is called, but the frequency is lower than the 10kHz, aprox 7kHz, anyone knows why this is hapenning?

 

[TDK]

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PWM and ADC conflict - STMicroelectronics Community

[AScha.3]

Hi,

maybe you do in the callback something, that needs more than 100us ...then it cannot get the 10kHz rate.

Try only toggle the pin, nothing else, to see: now 10kHz ?

If still not at 10k , then check your settings...clock, divider etc. , something wrong .