Strange button reaction on the PDA

[FReich]

Hello,

I have the LabView 8.2.1 PDA Modul.

In my programm I use a start button and stop button to start and stop the operation of my programm.

If the programm is already running and I press the start button again, then it is somehow remembered and if I stop the operation with the press of stop then it stops but starts again.

Ok now you can think thats just a problem with my programm structure or with the selection of how the button switches. However it happens

with all my other buttons as well when I use the programm on the PDA. If I use the programm on a desktop PC that problem doesnt occur.

Did anyone experience something like that as well?

I see just the possibility to set the value of the buttons "wrong" on the right places in my programm.

For the stop button for example when the operation starts I set the value "wrong" and then I should get red of that problem.

Does anyone have a idea?

[daniel.riedelbauch]

Hallo FReich,

the behavior your discribing really sounds strange. I haven't found anything that would match up. So I have a few questions for/suggestions to:

1. Could you post your PDA project, so we can check it out here? Maybe, if it's too big, you can create a small example which shows the behavior.
2. What PDA are you using?
3. Did you try another PDA (if possible)?
4. Did you try another Host-PC with the PDA Module installed?
5. Did you see this behavior on previous PDA Module versions?
6. Did you try repairing the PDA Module (Start >> Settings >> System Control >> Software >> National Instruments-Software >> PDA Module >> Repair)?
7. Did you try uninstalling/reinstalling the PDA Module?

Ok, a lot of questions! I'm looking forward to hearing from you soon.

Bye

Daniel
NIG

[FReich]

Hello Daniel,

thank you for your reply, I fixed the problem by using buttons which switch and dont latch. Then I use local variables on the right places to switch dem back....

But I would be happy if you could have a look at that very simple version of my programm.

I would like to hear your oppinion.

To answere your questions: I use a Dell Axim X51 at the moment I just have one PDA and one PC for LabView.

Thank you for telling me about that repair option I didnt know that.

About the updates I just updated to 8.2.1 and that solved my memory leak problem......the behavior of the buttons stayed the same.

Yours

Franziskus

[daniel.riedelbauch]

Hi Franziskus,

here is a little example, how you could do it (RunButton.vi). Another idea would be to use the Visible property of your ON Button. After the ON Button is pressed, turn the visibility off and after the STOP Button is pressed turn the visibility on, again. With this methode it isn't possible to press the ON Button twice.

So check out, which methode will be best suited for your application.

Bye

Daniel