Labview serial port event callback possible?

Question

Is it possible to receive data from a serial port in Labview using an event callback? Similar to DataReceived event callback in .NET serial port class? If yes, I would appreciate a link to an example VI. All the examples I have seen use the synchronous send/receive approach. I would assume that the callback event, if possible, must happen in a separate thread.

My device streams (ASCII) data out very fast, about 1000 data points per sec

I'm interested to know why you're thinking of doing it this way - are you having problems dealing with the received data at the moment? — nekomatic, Jan 06 '14 at 11:48

score 3 · Answer 1 · answered Dec 20 '13 at 01:51

3

You could poll the serial port and if the number of bytes exceeds a threashold (I used samples of 4 bytes), read that data and generate a user event. In another thread you could handle the events like normal events:

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answered Dec 20 '13 at 01:51

Ton Plomp

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What do you have wired to the stop condition for the bottom loop? I am assuming it's coming from the `Timeout` pane. – craigim Apr 17 '14 at 18:45
Most likely a stop button in it's own event case – Ton Plomp Apr 17 '14 at 23:43

Labview serial port event callback possible?

1 Answers1