AnsweredAssumed Answered

Purpose of the FlexCAN eDMA Driver

Question asked by Markus Büttgenbach on Feb 19, 2019
Latest reply on Feb 26, 2019 by Ricardo Delsordo

Hi,

 

the Kinetis SDK includes a FlexCAN EDMA driver for RX FIFO. It seems it triggers an interrupt each time a frame is transferred from the head of the FIFO into memory via DMA. I don't see the advantage here? Isn't it the same as just triggering the FlexCAN interrupt on the RX FIFO when a frame is ready????

Is it possible to transfer more then one frame with one DMA request?

Is it possible to transfer multiple frames from a FlexCAN mailbox via eDMA?

 

Thank you for any response.

 

Rgds

Markus

Outcomes