STM32CubeMX from IDE: generate buggy SystemClock_Config() ?

[JCuna.1]

I run a generated code from stm32cube IDE with LL drivers, and the debug process stops.

[TDK]

Did it hard fault? What do the hard fault registers indicate? Is HSE_VALUE used and set correctly?

Known good hardware or a custom board?

[JCuna.1]

HSE is 16Mhz, it is configured correctly in clock

 

It is a custom hardware.

[JCuna.1]

When I change from LL to HAL for RCC, the problem is solved.

I am using cube h7 1.10.0 and cube ide 1.9.0.

[Amel NASRI]

Hi @Community member​ ,

Thanks for sharing your finding, that is quite interesting to be investigated by our STM32CubeMX expert @Sara BEN HADJ YAHYA​ . Could you please share your ioc file to be able to reproduce your issue?

-Amel

[JCuna.1]

Yes, just select LL again for RCC peripheral.

[Nikita91]

LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL1);

should be set AFTER

LL_RCC_SetAHBPrescaler(LL_RCC_AHB_DIV_2);

Intermediate AHB prescaler 2 when target frequency clock is higher than 80 MHz