How can I interface Arduino MEGA 2560 with LabVIEW on Win 8.1?

[leocechet]

Hello everyone. I have been facing some problems on doing this task. It should be pretty easy and straight-forward, but I just can't make it work! The steps that I did:

1) I have everything istalled. Arduino, VISA, LabVIEW 2011, LIFA.

2) I compiled the file LIFA_base into arduino.

3) I tried many examples and made some VIs myself

4) It worked one time, but it stops working afterwards.

The thing is. I just can't make it communicate. And if I highlight the execution, it stops at the INIT VI, which means that it doesnt go through. I reset the board, unplug and plug again, and nothing helps! Does anyone know what it could be?

Attached the file and the picture with the highlight on and the place where it stopped running.

[barddya]

leocechet, One common reason is that the given port has NOT closed properly. The port is open until you properly close it or restart Labview (or the computer) make sure you close the port properly with the proper VI. Regards, Barddya