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Altera_Forum's avatar
Altera_Forum
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15 years ago

URGENT: Peripheral to Memory DMA Transaction

Hello, may I know how to transfer data from peripheral to memory using DMA? It is quite confusing from memory-to-memory transfer. please help! thanks!
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Yeah. it is working now. I think i know the problem. the setting you taught is correct. problem is with my peripheral which is FIFO. I set it to be 256 words initially, which is 512byte only. so the most it can fit 128 numbers, as 1 number is 4 byte. if i transfer more than 128 number, it will stop at 128 and the rest will be 0 and it will be full... i dont have reset signal for FIFO if it is full. so i think it is the problem. am i right?