ADC STM32L152 with 25 channel

[Hoi]

 

Hi all,

I am doing a project and need up to 25 ADC channels to read current from HAL ACS712 sensor,
I have never read so many ADC channels.
I saw that the STM32L152VET6 supports 25 ADC channels, so I chose it.
I have a problem when configuring with ST32 IDE, how to identify IN0 and IN0b in Rank - channel, I see that there is only channel 0 to channel 1, channel 0b is not found.

Please help me, thanks all !

 

[TDK]

Channel 0b is in bank B. Channel 0 is in bank A. You can't convert channels in separate banks without reconfiguring the ADC. The bank selection is done in ADC settings.

Just a note: The STM32L152VET6 is NRND status.

 

[Hoi]

Therefore, we cannot read 25 adc at the same time, because we need to set up ADC to select Bank

[Issamos]

Hello @Hoi 

I suggest you to try using one of the MCUs STM32H743xI/G, that can give you up to 36 ADC channels that work simultaneously.

Best regards.

II