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Altera_Forum's avatar
Altera_Forum
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16 years ago

Memory to Device DMA transfer

Hi, I am working on a byte transfer from SDRAM to a register of my custom hardware. I have set the byte transfer enable and wcon for byte transfers and write to a constant address. But, I see t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

On the first sight I don't see any mistake.

But why do you have enabled WEEN-bit and REEN-bit? Is there any need for it? And does your component support it? If you use it in software you should enable I_EN-bit as well.

What is the width of your custom hardware register? If it is 32 bit, have you tried to use WORD-transfer instead of BYTE?

If there is no need for performing DOUBLEWORD and QUADWORD-transfers, I would disable it in SOPC.