'Transfer Event Generation' settings in 2 places in cubeMX/cubeIDE for STM32U5

diverger · ‎2024-08-21

Hi,

When using the linked-list DMA, there are two places show the 'Transfer Event Generation', one is in the 'GPDMA1' settings and the others in the 'LINKEDLIST' nodes settings. Are they refer to the same thing? If so, are there any reason to let user set them at two places?

Thanks.

Sarra.S · ‎2024-08-22

Hello @diverger,

Yes, both settings refer to the same thing.

However, GPDMA settings apply on the totality of the DMA controller and the linked list settings are more fine-tuned.

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diverger · ‎2024-08-22

Hi,

If they refer to the same thing, then there are possibilities that they are set to different values. In that case, which one will take effect? That is, how they affect the final code, what's the logic behinds?

Thanks.