CVI on Dual Core intel

[dandan]

We recently upgraded our pentium 4 computer to the new intel dual core.

we have a DAQ-MX (pci-6259) card, working on a 7.4 driver.

we wrote a very flexible software to oporate the card using CVI 7.1.

surprisingly the software would freeze on the computer.

we discovered that by changing the command: SetCtrlAttribute to: SetCtrlVal the problem disappeared.

but then we discovered a new problem. the software would freeze occasionally when trying to clear or save to disk a memory buffer.

we tried to upgrade the driver to 8.1 but it didn't help.

eventually we brought the old computer back.

any ideas what can cause this behavior.

thank you

Dan 

[JonathanN]

Hi Dan,

Have you tried testing your behavior out with CVI 8.0.1 available for download here. Have you determined if the issue deals with DAQmx in CVI or just with CVI itself?

Thanks

Best Regards,

[dandan]

I am not sure if the problem is related to the DAQMX or the CVI.

We have two pci-6259  and both exhibit the same behavior.

I can not run the program without the card (or can I ?) so I can't really tell.

any advice on how can i determine which one causes the problem?

About the new CVI, I Don't think we have th elicense for it but if i do get it, should there be any compatibility problems running a code which was written on CVI 7.1

it is very difficult to pin point the problem because most of the time it works fine,

thank you for your help

Dan

[mvr]

>>About the new CVI, I Don't think we have the license for it
You can download a 30 day evaluation from the link provided above

>>but if i do get it, should there be any compatibility problems running a code which was written on CVI 7.1
In general no, you can even load both CVI 8 and CVI7.1 on the same system at the same time.  The major difference when you do this is that both versions will now use the CVI 8 runtime library which will be updated by the install of version 8 (you can only have one cvi runtime installed on a system.)  This is normally not an issue, but if you must maintain "100% identical" compatibility with other CVI 7.1 systems I would recommend making an image of your hard drive with a product like Ghost or Drive Image so that you can restore your system to the original configuration later.  I am sure you know, having a backup image of your system is a good practice anyway.

After you load the project in CVI 8, if you save the UIR file it will update it and this may or may not cause a problem if you try to reload the file in CVI 7.1.   Again all you need is a backup copy of the project and this will not be an issue.

Good Luck

[Edit SP]

Message Edited by mvr on 08-16-2006 07:42 AM