Terminate Do While Loop after 2 Event Structures Completed

[Pete.Dunc]

Hi guys,

I have the following VI built to extract the amplitude of a wave at two seperate points.

Only one reading of each pressure is required to be taken before terminating the while loop.. which is why I have the Boolean constants in the event structure leading to the stop if true conditional terminal.  But it's not quite working.

Could someone give me a hand getting it fixed? 

Pete

[AdnanZ]

I don't understand this; do you want the user to decide what the high and low pressure points are (by clicking on the respective buttons), or would you like the application to derive it?

[Pete.Dunc]

The user will select the high and low points; I can't use peak and valley detection as this is not where the high and low pressures occur on the input.

[Pete.Dunc]

What I really need is some kind of switch.. So that the instantaneous true value from the High and Low pressure buttons is held on the input of the AND gate.

So that once high and low buttons are pushed the do while loop will end.

[Ben]

You acn use Shift Register for that.

Add two shift register to your while loop and initialize them with boolean trues. Us an And gate to to perfrom and And between the Shift Register and the buttons with the reslut being used to update the SR after each iteration.

When one of you booleans goes fals the And will return fals and the false will be maintained in the SR so that one it goes false it stays false.

Have fun!

Ben