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Altera_Forum's avatar
Altera_Forum
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15 years ago

DMA - memory to memory writing problem..

hi folks, i want to write data from one address to an other via dma like in the code below, problem is, it doesn't work. first i use the macros to set the addresses and the length and then i s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

1) Indent your code.

2) The nios cpu is probably repeatedly reading the data from its cache, you need to either invalidate the relevant cache lines or do uncached reads.