Possible Conflicts - National Instruments GPIB-PCII Getting Started

Appendix A Changing Hardware and Software Configuration Settings
c. DMA Channel 3 Selected
b. DMA Channel 2 Selected
Figure A-9. DMA Channel Jumper Settings (continued)
If you do not want to use DMA for GPIB transfers (the GPIB-PCII/IIA
alternatively can use programmed I/O transfers), you must logically disconnect
the GPIB-PCII/IIA from the DMA lines by selecting NONE for the DMA line
when you run IBCONF in Step 2 - Configure the Software later in this chapter.
The board can remain in the backplane and no jumpers have to be moved or
changed.
If you change the DMA 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 at the end of this
appendix.

Possible Conflicts

There are only three DMA channels that can be used by other PC plug-in
interface boards and adapters. If any device uses DMA channel 1, change the
DMA channel used by either the GPIB-PCII/IIA or the other device to DMA
channel 2 or 3. If no DMA channel is available, configure the software to run
without DMA using the software configuration program, IBCONF.
© National Instruments Corp. A-19 PCII/IIA and NI-488.2 MS-DOS