Who's got bigger priority CPU or DMA

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Who's got bigger priority CPU or DMA

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errorek123
Contributor III

Let's assume DMA is currently transfering data and CPU needs bus to process next instructions, does CPU wait until DMA finishes or DMA somehow yields and let CPU run?

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jingpan
NXP TechSupport
NXP TechSupport

Hi,

CPU will be hold until DMA finish.

Regards,

Jing

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