Can anyone tell me why the count tick cannot be show?

Question

Hi All
I am trying to write a code for speed calculation, so first I am trying to familiar with the timer function. However as shown in my test code, I cannot get the result in front panel. Can anyone help me in this, please?
Attachments:
test count tick.vi ‏17 KB

Answer 1

Hi,
I've saved the file for 7.0.
You cannot initialise the tick count sub vi.
Reading the full help :
Returns the value of the millisecond timer. The base reference time (millisecond zero) is undefined. That is, you cannot convert millisecond timer value to a real-world time or date. Be careful when you use this function in comparisons because the value of the millisecond timer wraps from (2ˆ32)–1 to 0.
If you want to fake an initialise, then you're simply finding the current tick count (outside the loop) and adding on 1x10E4 every time you use the tick count from then on, so a difference will actually be the difference plus 1x10E4.
Make sense?
Alternatively, use the elapsed time express vi in the execution control palette, which can take a start time.
Thanks
Sacha Emery
National Instruments (UK)
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Attachments:
test_timer_fixed.vi ‏73 KB