Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

SDRAM Interface to SO-DIMM?

I'm planning a NiosII design and we need a pile of RAM but don't need the high bandwidth of SRAM. It's hard to find SDRAM chips in stock, given their commodity nature, and so I was looki...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Slightly OT, but I downloaded the Twister QII and SOPC files and built them.

They have a very professionaly integrated DDR component that you can add to your design. It has choices for a couple of different Cyclone chips and a couple of different DDR chips.

QII Timing analyzer says its good for close to 100MHz. They have the CPUCLK set at 66.

Not sure what the licensing is but I'll bet you can use it if you purchase their devkit.

Ken