cat /proc/meminfo

I am still using Nios II 5.0 and Quartus 5.0. And indeed you are correct. Although the MegaWizard shows it as 256 MB, the base and end addresses in SOPC add up to 64MB (0x4000000 to 0x7FFFFFF)...

So this leads me to the next question...

I can successfully load my kernel to the sdram. Now I just want to save ~200MB of data on the rest of the sdram using a C++ application I will develop in the Nios II IDE. Will the C++ app. be able to access the addresses outside of those 64MB it thinks are available? (And if not, why in the world would Altera put a 256MB SDRAM on a board if you can't even use it??)

Thanks for your help.