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Altera_Forum
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8 years ago

Nios II read/write to DDR3 using external DDR3 controller

Hello, I have a simple Qsys SoC consisting of Nios II, on-chip memory, 2 Avalon MM masters and 1 AXI slave. I have connected the Nios II to each Avalon MM master (one for read and one for...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

I have tried this, I used the following simple code in Eclipse to get Nios II to write to DDR3

int *mem = (int *)MERLIN_MASTER_AGENT_1_BASE;

*mem = 0xdeadbeef

I generated a .hex file and put it on the OCRAM. However, the write to DDR3 doesn't happen. When I read the DDR3 contents in software, the word I programmed Nios II to write is not present.