Extremely Precise Timing

[Evangelos]

Hello,

I want to create a while loop that iterates EXACTLY every 1ms. Any ideas?

Thanks

[Hooovahh]

Use LabVIEW real time, or even LabVIEW on an FPGA which can run loops at 40MHz.

You can use a timed loop in Windows but that timing cannot be used reliably because Windows is not deterministic.

[PaulG.]

What do you want to do at exactly 1ms? There may be a workaround without RT.

[Evangelos]

I want to count pulses for 1ms, then reset the counter and then count again pulses for 1ms etc.

[BillMe]

I take it this is in relation to the other thread you started for which you haven't received an answer?

[GerdW]

Hi Evangelos,

why do you want to reset the counter? Using a shift register and taking differences (by subtraction) is much more easier...

Also:

- Using your USB6009 on plain Windows isn't the right environment for "extremely precise" timing (as said before).

[Brad_K]

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@Evangelos wrote:

I want to count pulses for 1ms, then reset the counter and then count again pulses for 1ms etc.

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Here's a community example that shows how to do this using hardware timing: Use Counter to Create a Clock for a Buffered Edge Counting Task

However, it won't work with a USB-6009 because it requires a device that supports multiple counters and buffered edge counting (e.g. TIO, X Series, cDAQ, M Series).

Brad