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 Post subject: Data conflicts between DMA and cache
PostPosted: Thu Nov 17, 2016 12:54 pm 
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Joined: Thu Apr 14, 2011 11:27 am
Posts: 13
If DMA moves data in your system and cache enable as well, you must do "cache flush" and "cache invalidate" as following:

[*]Data from Memory to IO
[*][*]Before DMA operation, execute cache flush
[*]Data from IO to Memory
[*][*]After DMA operation, execute cache invalidate


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