How to use external memory for declaring variables or memory allocation ( A sample needed)

Hi,

I am a beginner using ezDSPf28335.

The variables I need in my program are much more that 68k and I need to use external RAM.

The arrays can be static variables or dynamic. I do programming in C++.

Is there any sample that  easily use external memory for static variables or dynamic memory allocation?

Thanks a lot,

   Behzad