labview arduino interface

[joyleu]

H All,

My group and I have faced some difficulties while using Labview and Arduino interface with VISA. Attached is the block diagram that we have set up in the Labview.

However, the following error shows up when we run:

Error- 1073807339 occurred at VISA Read in wireless filter current vi.

Possible reasons(s): VISA: (Hex 0xBFFFF0015) Timeout expired before operation completed.

Does anyone have any idea what does this error means? And how to solve this error?

Also, attached is the code that we have put in Arduino. What does the delay (10) in the code means? How does it affect my Labview when it runs?

We hope to get some enlightenment. Thank you.

[dkfire]

How many bytes are your arduino sending out per second? 

Right now your LabVIEW code is waiting for 10 sec for 15000 bytes before it can continue. 

If it does not get 15000 bytes, it will timeout and give you that error. 

On a side note, DO NOT open and close the VISA port for every loop iteration, move the open and close VISA outside the loop!