hello, thanks a lot.
But my problem dosn't solved. I added 55xdspx.lib to include options in CCS 5, and also 55xdspx.src (because my problem was large memory model), and I copied file Dsplib.h to include sub directory,
when I click on build all, No errors displayed, but .out file dosn't make at all.
how I can solve this problem?