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Altera_Forum
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14 years ago

Access DDR2 memory outside of NIOS SOPC system

Hi all. I have an SOPC system where my NIOS uses an external DDR2 memory as its main memory. The system being designed is that the NIOS will create an overlay buffer for an 800X600 OnScreen Dis...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

You need a DMA. You can either add a ready made DMA controller core to your SOPC system (such as Altera's SGDMA) or design your own component that uses an Avalon Master Memory Mapped interface to directly read from the RAM.