problem with memcpy

Hi ochando,

> tried to use the HAL function alt_dcache_flush(), but i couldn't resolve ( i must be doing

> something wrong

You must invalidate the source (your peripheral) prior to performing read access.

> nyway, i will loose too much time if i have to flush the dcache each iteration. I have to think

> on it, but by the moment, i'm gonna try using al alternative method, doing a dma from my

> own master.

No doubt, a good DMA implemenation is much faster. But this won't solve your cache

coherency problems: you will still need to invalidate main memory regions prior to accessing

data that was transferred via DMA from the peripheral, and you will still need to flush main

memory regions prior to DMA transfers to the peripheral.

Regards,

--Scott