A question about sram vs. sdram

Many thanks to cetic and BadOmen http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif

But it dawned on me that according to your suggestions,

a system with a RTOS(such as uC/OSII) would work only based on a SDRAM

without using a SRAM,am I right?

Just because the capacity of a SRAM is much smaller than a SDRAM,

so if I use a SRAM to run a RTOS,there might be some potential problems

with the size of this SRAM.So at this moment,I can only

use a SDRAM (maybe work together with the SRAM,but maybe not)

to solve these pending problems,right?

Regards,

Don