profile timing - wait (ms)

[elliot.ee]

In my main VI, I call a sub-VI that will flush the receive buffer of serial port, write a command to the serial port, and wait for 120 ms. The main vi will then begin the reading process of the serial port.

I ran the profile performance and memory tool on it to see if the sub-VI will really run for at least 120 ms. What I got back was that it only took 0.0 ms to run the vi.

I have attached an image on what the sub-vi looks like.

Message Edited by elliot.ee on 06-05-2007 08:16 AM

[GerdW]

Hi elliot,

you only get back processor time. Even a vi containing only a wait function with 200ms delay gives back ~0.5ms average time. The wait function doesn't hog the processor!

One note: create constants by right-clicking the terminal -> 'create constant'. This way you avoid those coercion dots as can be seen on your wait function...

[smercurio_fc]

Additional side tip: You can use the "Time Delay" function to give you a function with error in/error out that you can wire directly into your stream without using the sequence frame.