How does stm32H723 ADC ISR know which channel ?

[Niramas]

I am just getting started with the stm32h723 ADC.    If I create a regular sequence group of several input channels, how does my ISR know which channel was sampled last (which channel's data is in the DR)?  I don't see this in the registers.

Thanks,

Mark 

[Tesla DeLorean]

Typically you'd DMA a group of channels into an array, and then get an interrupt for some multiple of them.

[Niramas]

So I have to go down another rabbit hole to get my ADC data?   Is there a code example for the ADC-DMA transfer?

[Imen.D]

Hello @Niramas ,

You can use the "ADC DMA Transfer" example runs on STM32H743xx devices:

STM32CubeH7/Projects/NUCLEO-H743ZI/Examples/ADC/ADC_DMA_Transfer at master · STMicroelectronics/STM32CubeH7 · GitHub

This example can be easily tailored to any other supported device and development board.