How do I improvwe the accuracy of labview timing?

[Andrew Goddard]

I have been trying to use the millisecond timer functions to control the repetition rate in a pulsed experiment. Initially I want to work at 10 Hz, so I set the timer to 100ms, but the error in this counting is rather large +/- 5 ms which isn't really acceptable. Is there a way of changing / setting the priorities of the timer so that it is more accurate / reliable as in other languages like Delphi? (The error in the counting is much smaller using Delphi)

[DOC-doc]

Hi Andrew

If you wan to control the pulse rate of your experiment, you have to program your signal into your card once for ever (for exemple, you generate a 10Hz square wave and you put it in the buffer of your card, and set it to run continuously).
Then you have a very accurate generation.

Further, LabVIEW is accurate. You can change the priority of your VI so that it forces Windows to give LabVIEW more control on the CPU use

Doc-Doc