LabVIEW hangs on "connection" when downloading to PDA

[navydude]

For some reason my LabVIEW PDA Module has just started to play up. When I download a PDA VI I get the message 'downloading' but then another pop up screen appears reading 'connection', with a status bar but nothing happens. If I select then 'cancel' button i get the message 'could not connect to device' The VI seems to download OK but then all my code seems to get mixed up and the VI does not work properly. I can switch execution mode and run the program on Windows and it works fine.

I have attached the code for someone to look at although I'm not sure if that is the problem. It worked fine on a couple of days ago so I dont know if my PDA has a post 4th of July hangover.

[Philip_Courtois]

Hi navydude,

Hmmm, sounds interesting...

Could the VI that you downloaded earlier still be running in the background of the PDA? If that's the case, it could be taking up some resources that are needed for the PC/PDA connection, especially if you have the cradle connected to the PC with a serial connection. Make sure to stop and close all running VIs before downloading the new VI. To check for running applications on a PocketPC device, go to "Start » Settings » System » Memory » Running Programs".

In case you have no conflicting applications running, please try to transfer another simple VI with a different name. Does that work?

What PDA OS are you using?

Thanks!

Message Edited by Philip C. on 07-06-2005 05:48 PM

[navydude]

I have checked that all applications have stopped on the PDA except for active sync. I've even restarted both the PC and the PDA when it was in and out the cradle, switched PDA's and tried downloading different VIs but I keep getting the same error. I've also uninstalled and re-installed activesync 3.8 but that didn't help either. The program is however working fine now after adding delays to all my loops - The PDA seems to have difficulty in working with loops when no delay has been added. 

I don't get the problem when downloading the same VIs from a different PC so I'm wondering if it might be a problem with the USB port or with the LabVIEW installation itself. I'll try changing the USB port attached to the cradel and see what happens.