MDMA buffer transfer must transfer each buffer in each request but it transfer whole buffers in each request.

[SeyyedMohammad]

I have two code (but both in buffer transfer mode), with different behaviour of MDMA buffer transfer, In software request mode each buffer element of block transfers in each request but in hardware request case (LPTIM3) each request causes MDMA to transfer whole buffers. Whats going on?

The project are appended. STM32H743vit6 on STM32cubeIDE 1.10.1

[SeyyedMohammad · Accepted solution]

I've found the answer:

Because we need to surve the TCIF of the DMA by MDMA (Data mask and adress mask).