STM32U5 ADC4 not starting with latest cube firmware package

[React4Life]

Hi all,

I am Jacopo and I am working on a project using STM32U5G9ZJ and I updated to the latest firmware package (STM32Cube_FW_U5_V1.9.0) with STM32CubeMX.

I noticed that with the new package the call to HAL_ADC_Start fails to actually start the conversion if used with ADC4. Digging inside the function code I noticed that the call to LL_ADC_REG_StartConversion(hadc->Instance) got moved a couple of lines with respect to the previous version. This means that when the check for ADC4 passes nothing is done, and moving the function call back fixes the problem.

Is this a bug? For now I fixed it by manually calling LL_ADC_REG_StartConversion after HAL_ADC_Start, but this is less than ideal.

Thank you.

 

Jacopo

[Saket_Om]

Hello ​@React4Life 

Thank you for bringing this issue to our attention.

I reported this internally.

Internal ticket number: CDM0064939 (This is an internal tracking number and is not accessible or usable by customers).