How to adjust timer?

[MKara.17]

I am trying ti adjust the timer2 of the stm32f4 to 400khz​ but it does not work. Even though my calculations on Prescaler and counter are right for the frequency that i aim for, Timer is not working as it should be. By the way i am using Hal library.

[Ramazan Gülcan]

Hi;

We can be more helpful if you can add CubeMX and its codes.

[Tesla DeLorean]

That's unfortunate, the parts are working fine for me. Perhaps you're doing something wrong, hard to tell with level of detail furnished. ​

[Pavel A.]

F4 has two buses, APB1 and APB2, they can have different frequency. Do you know to which bus your timer belongs?

-- pa

[MKara.17]

I should check it but it was apb2.​

[MKara.17]

Actually i could not do it with stm32f103 too. So basically i have problems about timer. If you guys have any kind of high frequency timer code can you share?