STM32G030: HAL_ADCEx_Calibration_Start() fails with compiler options greater than "-O0"

[GOnkelinx]

Hi,

I use a STM32G030. 
The application works fine when we compile it with option -O0 (no optimize).
It fails when we using the function HAL_ADCEx_Calibration_Start() for the calibration of the ADC.

This function returns the fail at the follow location:

The calibration is started as follow:

HAL_ADC_Stop(hdlr->pHadc);

HAL_ADCEx_Calibration_Start(hdlr->pHadc);

Why returns this function an error only when the compiler option is greater than -O0?
Now when the functions returns an error the function/ADC is locked.
Is this normal or should be not there for the return __HAL_UNLOCK(hadc)?

[waclawek.jan · Accepted solution]

https://community.st.com/t5/stm32-mcus-products/adc-calibration-doesn-t-complete-on-stm32g0c1re/td-p/590459 ?

JW

[GOnkelinx]

Thanks, the workaround works.
Why it not updated in the HAL library yet?