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DMA re-enable question

Question asked by mtenw on May 18, 2017
Latest reply on May 25, 2017 by mtenw

Hi all,

I have a question about re-enabling a DMA memory to memory copy on LPC4370.

 

I have successfully set up the DMA controller to do a one time memory to memory copy using the scatter/gather method (user manual 21.8.5). If I would like to do the copy from the same source address to the destination address again, do I need to program all the same registers again?

 

If re-programming the registers is not needed, how is the re-enabling DMA transfer achieved?

 

Please help! Thank you.

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