I'm searching for super coding comfort in CubeIDE.   Currently TIM2 resets/updates.In HAL_TIM_PeriodElapsedCallback()  I "manually" start HAL_ADC_Start_DMA() the Scan conversion of four channels and have the four results shipped into my progs memory,...

DMA buffer 32 words, ADS converts 4 channels in scan mode.So every 8 ADC-starts  DMA will start at buffer[0]  (circular buffer is ticked).CubeIDE HAL is being used.How do I find out / look up  the buffer offset most recently written to?

Guys, it was really hard giving birth to this proof of concept: - Every 100ms the timer hits the ceiling , lessons leaned : trigger event selection setting is irrelevant, it'll work- in the TIM2 ISR (more precisely : the user callback TIM2's ISR is c...