STM32CubeMX from IDE: generate buggy SystemClock_Config() ?

JCuna.1 · ‎2022-04-26

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

TDK · ‎2022-04-26

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?

If you feel a post has answered your question, please click "Accept as Solution".

JCuna.1 · ‎2022-04-26

HSE is 16Mhz, it is configured correctly in clock

It is a custom hardware.

JCuna.1 · ‎2022-04-26

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 · ‎2022-04-27

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

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

JCuna.1 · ‎2022-04-27

Yes, just select LL again for RCC peripheral.

Nikita91 · ‎2022-04-27

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