STM32G474 DAC with DMA doesnt work

JHari.1 · ‎2022-01-18

I have trying DAC with DMA from STM32G474 eval board. I can see the values being updated to the DOR register and the DAC EN is set to 1. However, the output of the DAC is stuck at 0.

I have attached the cubeide settings.

TDK · ‎2022-01-18

Initialize it as GPIO output and toggle. Does it move?

There are some solder bridges and switches that can affect how PA4 is routed. See user manual.

If you feel a post has answered your question, please click "Accept as Solution".

View solution in original post

TDK · ‎2022-01-18

Initialize it as GPIO output and toggle. Does it move?

There are some solder bridges and switches that can affect how PA4 is routed. See user manual.

If you feel a post has answered your question, please click "Accept as Solution".

JHari.1 · ‎2022-01-19

I didnt realise that the A4 and PA4 are not the same. I checked the schematic after your comment and the problem is fixed. PA4 is connected to A2 pin on the board.