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Altera_Forum
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16 years ago

alt_remap_uncached, alt_uncached_malloc?

Hi, I'm writing to off chip DDR2. My question is should I use either of the alt_remap_uncached or the alt_uncached_malloc functions? I saw that they use it in the NEEK demo. But I don't...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

No if the software doesn't access the data in any way, caching won't have any influence on the system. You should only flush the cache if the hardware has to read data that the CPU wrote to memory.

Are you using burst transfers?