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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Serious Problem with DMA transfer.

Guys, I have a desperate problem on my hand. Using DMA to do burst transfers from DDR to on-chip RAM. Using the reference code as shown below. Searched all the forums and confirmed people using th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Any suggestions people? Still stuck. Fr transferring 16 bytes of burst, even tried using something as:

alt_dcache_flush_all();

&

tx_data = (void*)alt_uncached_malloc(0x10);

rx_buffer = (void*)alt_uncached_malloc(0x10);

to make sure there are no data cache problems.

Suggestions please.........