CycloneIII 120 board and dual bank DDR2

Hello All,

I have this EP3C120 board with dual bank DDR2. Although I am able to instantiate both banks in my SOPC(using a standard example) but I am not able to use it effectively.

I want to keep my camera inputs on top bank while the vga output on bottom. My program memory is on bottom bank. I am using __atttribute__ to my input image buffer to let nios cpu know that its on top bank but its not working the way i want.

Does anyone has any working project using both the banks or any suggestions on how I can effectively use dual banks of DDR2.

Thanks in advance,

Rama