Resolution of delay function and the borough

A small question about the delay () function.  The resolution is apparently 1ms according to the help file.  What happens if I pass a value with a fraction of a mlliseconds, say something like:

Delay(0.0128);

For 12.8ms.  Does round to the top and the 13th month of delay?  Or round to 12ms?  Undefined?  Something else?

Thank you.

Hey tstanley,

I did some research on the function and it seems that the feature is for timer trying to get closer to the 12.8ms, but because the resolution is only 1 ms, it could still be +/-1ms to the value that you enter. So in some of our tests, it was waiting for 13.8ms, since it is in the accuracy of the clock 1ms.

Because Windows is not a real-time operating system, there are several factors that could keep the timer delay for 13.8ms - other processes can run on the machine and anticipate the process timer, for example. If this level of accuracy is required, you can consider using the CVI RT module on a system in real-time.

Tags: NI Software

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