STM32F4 ADC1,2 in Dual mode + ADC3 as Independent

[Jaroslaw Hill]

Hello,

I was trying to run AC1 and ADC2 in Dual mode and ADC3 configured as independent one.

Using HAL_ADC_Start for ADC3 doesn’t start the converter as it checks multi-mode in common ADC_CCR register wrongly not allowing to use ADC3 for ADC_DUALMODE_REGSIMULT (value 6). 

I prepared a patch for stm32f4xx_hal_adc.c, but not for injected channels from stm32f4xx_hal_adc_ex.c file as they have a similar issue.

Could it be checked by library owner or someone responsible for the code?

 

Firmware Package Name and Version : STM32Cube FW_F4 V1.28.3

STM32CubeMX 6.14.0

MCU STM32F446ZEJx

 

Best Regards

Jarosław Hill

[mƎALLEm]

Hello ​@Jaroslaw Hill,

Such kind of questions need to be posted in “STM32 MCUs Embedded software” forum board.

I’ve already moved this post.

[Saket_Om]

Hello ​@Jaroslaw Hill 

Could you please provide a minimal project that allows us to reproduce the issue on our side?

[Jaroslaw Hill]

Hello,

Yes, I prepared the project, the code is in Core/Src/adc.c and is invoked from the main loop.

[Saket_Om]

Hello ​@Jaroslaw Hill 

Thank you for bringing this issue to our attention.

I reported this internally.

Internal ticket number: CDM0064048 (This is an internal tracking number and is not accessible or usable by customers).