7831R strange behaviour

[Cham]

Hi...

I have a strange situation with a 7831R card where my FPGA code runs as intended in hardware i/o emulation mode, but not so when the VI is run proper. There are is also an instance where one of my variables gets corrupted. More specifically, the variable increments in value when there is no logical way it can. The only cause I can think of is that I have used 5118 of my 5120 slices.

Has anyone encountered such a situation?  Any, comments will be most appreciated.

Cheers,

Chammika

[Jennifer_R]

Hi Chammika,

When you use an emulator, the FPGA VI runs on your computer.  Certain aspects of the application, such as timing and determinism, can be different when run on the FPGA target.  Is the behavior you are seeing related to timing?  What is the difference between the intended behavior and what you are seeing?   

Could you provide more details about the variable?  When does its value change, and when should it change?  Does this happen in emulation mode as well as with the FPGA target?