Hi,
National Instrument does have CAN interfaces that work with LabVIEW. Are you using a NI CAN interface?
What type of application are you working on? I could provide more details based on your application.
BTW, what exactly do you mean by generating "C" code. In LabWindows CVI you MAKE your application in C, but the generated code is in machine language (which is the purpose of the compiler. LabVIEW is a graphical enviroment, but the graphical code is also compiled.
Hope this helps.
DiegoF
National Instruments.