setting clock in stm32f7

[Zakba.1]

Hi... for some reasons I cant regenerate my code from CubeMx but I need to change crystal 8M to oscillator 14.7456... in spite of replacing the clock function (void SystemClock_Config(void) ) with new one, my project does not work. what other changes do I need to consider for changing the clock in a project generated by CubeMx?

thank you in advance

[KnarfB]

Well, why not generating 2 new dummy projects with the old and new settings and comparing the output. The new freq. may be to high for the old (PLL?) settings, and oscillator != crystal ?

hth

KnarfB

[Zakba.1]

Well I tried that creating a dummy project with new clock configuration and replaced the generated system clock function with new one... this function as far as I know configures freq, pll, crystal or oscillator type in itself... except this function do I need to change any other configs in project?

Ps: I generated the code in cube with HAL lib

Post edited to adhere community guidelines.

[FBL · Accepted solution]

Hello @Zakba.1​ 

If your project contains any code that is sensitive to timing (e.g delay loops...), you may need to update this code and consider the new oscillator frequency.