Thanks again for your concern, Aashish_M..
Yes, the uC are programmed, and it has it's own protocols to control any functions of this uC (actually I made my own protocol to control the uC). I've look at some pages from NI, and they said that I can make my own instrument driver with the tool named Driver Development Wizard. I've been looking for the tool, but i can't find it. I'm using NI LabVIEW 8.2 Student version. Is that tool not available when using the student version?
Timothy