Forum Discussion

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

64-bit data width DDR2 SDRAM usage (problem with SOPC builder)

I am using the DDR2 SDRAM controller Megacore function in SOPC builder, and I cannot configure it with 64-bit data bus width (128 local width). The SOPC builder generates errors regarding address spa...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Two things to remember:

1 - Use "System->Auto Assign Base Addresses" to allow SoPC builder to automatically figure out address ranges for your components.

2 - You can't have more than 2GB of address space. So if your DDR2 component is bigger than 1GB, you're probably going to run out of address space.

Jake