real time running

Hello,

I'm using Matlab/Simulink to program an FPGA Stratix II.

I'd like to know if it's possible to load 2 (or more) projects on the memory flash. While a program is running (es. a 16-QAM modulator) can run another program (already loaded) in real time, es. QPSK modulator? If so, how can I do?

Thanks,

Fabio