Hello abon27, There are some great examples in the Example Finder (LabVIEW Help Menu»Find Examples). Select Hardware Input and Output, then I2C and SPI (see the picture below). If you need futher help getting started programming, the <a href="
http://www.ni.com/pdf/manuals/371746b.pdf" target="_blank">NI 845x Software Users Manual</a> has some very good information. In particular for your needs, take a look at Chapter 5 in that manual, it details the LabVIEW API implementation of I2C. Let me know if you have any other questions, Meghan RApplications EngineerNational Instruments
Example Finder - 8451.gif:
http://forums.ni.com/attachments/ni/170/344574/1/Example Finder - 8451.gif