lpt visa

[tin]

E' possibile usare le librerie NI VISA per scrivere sui registri della
porta parallela visto che i vi in e out port non lavorano con win NT/200/xp?

Is there any possibility use NI-visa library for lpt register access in
WIn NT/200/XP such as outport and inport available for win95/98?
thanks
massimo

[Dan_Mondrik]

No.

NI-VISA has extremely minimal parallel port support, just writes and (if the device supports it) reads.

Dan Mondrik
Senior Software Engineer, NI-VISA
National Instruments

[Ben]

Hi Dan,

It's me again looking for clarification.

I am supposed to be able to do register access of third party boards using VISA, so, why can't that approach be used to get at the parallel port?

Does VISA just let me get at PCI addresses or something?

Ben

[Dan_Mondrik]

Ben:

Because for 3rd party boards you write an explicit INF file binding the PCI device to the VISA kernel driver. The parallel port is always bound to the Microsoft OS kernel driver.

Dan Mondrik

[Ben]

Thank you.

Ben