CVI 5 & window xp

[joem]

Can anyone let me know if labwindow CVI 5.0.1 is compatable with Windows XP?

We manufacture a plug in board that used to work in Win98 OS but can communicate

with board when we changed OS to XP.

Thanks

Joe

[jr_2005]

A few years ago we did a project using CVI 5.0 and XP which used the serial port. All went as expected - no problems. Possibly the XP drivers for your board have a different API to the Win98 ones?

JR

[joem]

Yes, Win98 allowed you to write directly to the port. WinXP doesnt.

So know I have to hook into the driver from labwindows. One of

the include h files reference a 32 bit int which this version of

labwindows doesnt have a definition of.

Thanks

[jr_2005]

The CVI low level drivers may help you - see the CVI help for outp(). Would not a simple cast be sufficient to work with an unusual 32 bit integer definition?

JR

[Ecleamus]

Hi Joe,

Here a link to a knowledgebase as well: Supported Operating Systems for LabWindows/CVI.

Have a great day,

Ecleamus Ricks, Jr.
National Instruments
Applications Engineer

[Makoto]

In the CVI (8.0) help, there was a note for outp() function:

Note  
outp requires the LabWindows/CVI low-level support driver. LabWindows/CVI loads the driver at startup if it is on disk. You can check whether LabWindows/CVI loaded the driver at startup by calling CVILowLevelSupportDriverLoaded.

Did you enable that feature?  Also, if your old app (that worked under Win98) accesses to I/O port directly by the outp() function of the standard C library or assembly's OUTP instruction, Win9X systems do allow this operation but NT-based systems do not.  This restriction is due to differences between OS versions, not due to CVI version.

[joem]

Yes, thats correct WinNT or XP needs a driver. The lowlevel functions are enabled.

CVI must talk to my pluginboard via my winXP driver using API calls (I am porting VC++ code to CVI)

After doing some reading in the CVI I included window.h  which used the CVI sdk library for calling

windows api functions.

In any case I was succesfull connecting and communicating to my pci card using CVI.

My boss signed the upgrade to CVI 8.0 so we dont run into any compatablilty problems

in the future.

Thanks, everyone, for your help.

Joe