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Altera_Forum's avatar
Altera_Forum
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15 years ago

Direct Memory Access (DMA)

hello, i am having a problem with using dma. my dma seems like never finish the transaction because it cannot call the done function and keep on looping in the while(!rx_done). I dont know why. can a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Yeah, did it but still cannot see. What is the clock rate for your DMA? is there any setting to do before using DMA? I just 32-bit and the rest is default for DMA. then i connect the dma_write and read to sdram and onchip. for me, i connect both dma_write and read to sdram and onchip. but yours is connecting read to sdram and write to onchip.