Possible Conflicts; Table A-4. Pc Interrupt Assignment Map - National Instruments GPIB-PCII Getting Started

Changing Hardware and Software Configuration Settings
If you change the interrupt jumper setting from the default setting, record the
new setting in the GPIB-PCII/IIA Hardware and Software Configuration Form
in Appendix B and proceed to Step 2 - Software Configuration later in this
appendix.

Possible Conflicts

Table A-4 lists some of the interrupt lines used by other PC plug-in interface
boards and adapters. This is by no means a complete list, but it may help in
determining possible interrupt conflicts. Symptoms of interrupt conflicts vary
widely. At one extreme, conflicts can prevent the computer from booting.
Interrupt conflicts may also cause repeated time outs on GPIB function calls.
When they do surface, the problems can exhibit themselves simply as strange
behavior.
National Instruments has made every effort to select a default interrupt line that
will work. However, because of the numerous different interface boards
available for use in the PC, it is not possible to select an interrupt line that is
guaranteed to work in all systems. Therefore, be certain of your system's
interrupt assignments before proceeding with installation.

Table A-4. PC Interrupt Assignment Map

IRQ
7
6
5
PCII/IIA and NI-488.2 MS-DOS
Device
Parallel Port 1
Data Acquisition and Control (default)
GPIB-PCII/IIA
Diskette Controller
Fixed Disk and Diskette Drive
Parallel Port 2
PC-DIO-24 (default)
LabPC (default)
A-16
Appendix A
(continues)
© National Instruments Corp.