capture images with multiple loops of evil while

I'm working on a VI to control a firewire camera. I am currently using a while loop with a structure of the event control functions of cameras inside. I also want the camera to start recording images in a folder when a button is pressed and stopped when you press a stop button. I wasn't able to get this feature in the original everything in a loop, but I added another while loop, but it does not work. I've attached an example where the first while loop is simplified (it contains only a displayvideoproperties node) to my real VI the first while loop has about 10-15 different cases for different functions as digital subtraction, triggers, etc... How can I get these parallel while loops to work together or how could I get the second while loop in the first?

You need to change your code.

1. use a unique Structure of the event.  One of the top loop will do.  You should have all the events of the user in the same Structure of the event (you can have more than 1).

2 remove the left lower corner of the Structure of the event.

3. low While loop must contain a State Machine.  In this particular case, I would spend the Structure of event reports the State using an ActionEngine (or functional Global Variable) machine.  In this way, your While loop bottom could continue to loop through the same State and continue to update the image control, image capture, etc..  There are other ways, but this one is probably the simplest.

4. the Summit would deal with the imposing of the event: control of the functions of the unit, start recording, stop recording, save to file, stop/exit program.

R

Tags: NI Software

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