labview program halts after 124 iterations

[temtatedguy@hotmail.com]

I have developed a VI which takes data from a hardware through serial port.I have employed stop and wait technique so in one iteration the VI transfers 2 bytes serially to the hardware and recieves 8 bytes.After around 124 iterations the program stops for 3 to 4 seconds and then starts again taking the data.I have tried alot to identify the problem but its there.I am using labview 8.5 professional version and windows Xp.

Thanks

[tinnitus]

Hello,

could send epurated code of your vi,

it will be easier for us to help you

@+

Tinnitus

[smercurio_fc]

Do you know for a fact that it's the program that's pausing, as opposed to some other operating system process that's causing it to stop? Like Windows, or perhaps your anti-virus, or something else that you have running?

[DiscoBall]

Hi temtatedguy,

Is the program always pausing at 124 iterations, or does that number change drastically? What device are you communicating to serially?