STM32CubeMX 6.8.0 and STM32CubeIDE 1.12.0: bug in LSI initialization when using low-level drivers

[SOfne.1]

Used STM32CubeIDE version: 1.12.0
Used driver library: STM32Cube_FW_U5_V1.2.0

I found a bug in the initialization of the LSI, when low-level drivers are used. The bug is located in the function SystemClock_Config(). Since the background domain access is not enabled before trying to enable the LSI, the loop which is waiting for the LSI to come up is never left.

...

LL_PWR_EnableBkUpAccess();              // <-- this line is missing in the generated code

LL_RCC_LSI_Enable();

/* Wait till LSI is ready */
while(LL_RCC_LSI_IsReady() != 1)
{
}

...

[Ghofrane GSOURI · Accepted solution]

Hello @SOfne.1 

First let me thank you for posting.

Actually I tried to reproduce the issue mentioned above using STM32U575,CubeMX 6.9.0 and STM32CubeIDE 1.13.0 and this is what I got please have a look

"LL_PWR_EnableBkUpAccess()"  does exist in the generated code.

Thx

Ghofrane 

[SOfne.1]

Hi Ghofrane,

the code you generated is OK.

Seems that the bug has already been fixed with STMCubeIDE 1.13.0.

(I currently use v1.12.0)

Thanks

Sebastian