DMA Tcd

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DMA Tcd

1,375件の閲覧回数
AsafTv
Contributor II

Hi,

i use MK64FN1m0xx12

i configure 4 TCD for DMA work as ping pong, How can i know the current running DMA TCD? 

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5 返答(返信)

1,314件の閲覧回数
CarlosGarabito
NXP TechSupport
NXP TechSupport

1,356件の閲覧回数
CarlosGarabito
NXP TechSupport
NXP TechSupport

Hi, we have a document than can help you

https://www.nxp.com/docs/en/application-note/AN5083.pdf

 

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1,343件の閲覧回数
AsafTv
Contributor II

what can be the reason that DMA stop to work if i configure interrupt priority to the DMA channel 

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1,329件の閲覧回数
CarlosGarabito
NXP TechSupport
NXP TechSupport

Hi again, Maybe need to check your interrupt code

Have a good day

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1,322件の閲覧回数
AsafTv
Contributor II

Hi,

I use NVIC_setPriority ( DMA1_IRQn ), what can be the problen?

if i not set the priority what is the reset priority? 

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