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Altera_Forum's avatar
Altera_Forum
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21 years ago

DMA busy

I use a DMA to tranfer 1800 bytes. The DMA work. I need to make again the tranfert soon after the first transfer, but it took a long time between the 2 transferL. In fact the DMA is always BUSY....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

muffec, it looks like you're trying to read 1800/4 = 450 words sequentially starting at address "data_written", and write each word to the single location at address "memory_base". What is the nature of the slaves at address "data_written" and "memory_base"?

Have you tried simulating this software in ModelSim?