DFSDM Trigger enabled in CubeMX, but register not set

I am trying to set up DFSDM on an stm32h753zi using the AMC1306 delta sigma modulator. I have enabled TIM8 as a trigger:

But in the registers I see, that JEXTEN is not set to external rising edge (0x1). Instead it is set as disabled (0x0).

After the CubeMX generated initialization I added:

HAL_DFSDM_FilterInjectedStart_DMA(...);

Do you have any ideas what might be causing this?

Associate III

Seems like the

HAL_DFSDM_FilterInjectedStart_DMA(...);

call fails, I need to investigate further.

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