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Altera_Forum's avatar
Altera_Forum
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15 years ago

Correct way to instantiate an SDRAM ?

Hi all, Got a bit stuck, here, hoping someone can help me out... I'm trying to work through creating a Nios2 system from basics up to something a bit more complex, and the SDRAM is being unrel...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Yep - I'm using the board DE0.qsf file that came with the board, and I haven't redefined any of the DRAM_... or CLOCK_50 lines.

It actually works in hardware - I've run the memtest.c program, and (after realising that both top and bottom of memory are used, one for the heap, one for the stack) I can happily memtest my SDRAM. I'm just curious as to how I *ought* to be doing it so the clock goes by the correct routing.

[aside: I can't get DMA to work, but I haven't put too much effort into that yet. Still looking at it :)]

Cheers

Simon