Can I insert a callback function between DMA descriptor

AmberLin — Mon, 15 Jan 2024 06:55:04 GMT

Hi Community,

I'm using LPC55S28-EVK.

I tried the SDK example lpcxpresso55s28_dma_linked_transfer which is a DMA ping-pong transfer example, and found that it enters callback function when "all" descriptor exhausted.

Is there any method to enter a callback function when each descriptor exhausted? I need to ensure a descriptor is finished and do something before next descriptor start.

Best Regards.

Amber Lin.

Re: Can I insert a callback function between DMA descriptor

Alice_Yang — Tue, 16 Jan 2024 09:07:14 GMT

Hello @AmberLin

So, how about do not use linked mode, how add trigger ADC on callback function?

Alice

topic Can I insert a callback function between DMA descriptor in LPC Microcontrollers

Can I insert a callback function between DMA descriptor

Re: Can I insert a callback function between DMA descriptor