problems writing to parallel port

[JoePat]

Hi All,

I need to write an 8 bit bianary data (number) to the Parallel port.  If I use the outport.vi will it strobe or do I need to include the first bit to do that?  Am I addressing the D0-D7 data bits or the strobe also.  Thanks for the insight,  JoePat

[mfitzsimons]

What OS are you running.  If it is Windows 2000 / XP you will not be able to access the port directly using the outport.vi.

See: http://www.beyondlogic.org/porttalk/porttalk.htm

If you are using Windows 98 or 95 you shouldn't have an issue using the outport.vi.

Matt

[Dennis_Knutson]

There is an app note at http://zone.ni.com/devzone/conceptd.nsf/webmain/72C6FC6CE4AD4D1386256B1800794596 on using Out Port or VISA Write to the parallel port. Since LabVIEW 7, you can use In Port/Out Port without using a patch in NT/2000/XP.