Chapter 2
Installation and Configuration
PC/104-GPIB for Windows 95
2-12
©
National Instruments Corporation
Figure 2-8. PC/104-GPIB Base I/O Address Switch Settings
3. Record your new settings on the
in Appendix D,
Configure the PC/104-GPIB Interrupt Request
PC/104 compatible systems have a series of interrupt request lines
available to devices. Devices use interrupts to get immediate service
from the CPU for asynchronous events. Your GPIB hardware and
software use interrupts to get service from the CPU when necessary.
By default, the PC/104-GPIB is configured to use interrupt request
line 11. If this setting does not match the interrupt that Windows 95
assigns to your PC/104-GPIB, or if you are installing the PC/104-GPIB
in an 8-bit stack, you must reconfigure the interrupt request line.
1
9
8
7
6
5
0
Binary
1
1
0
0
0
0
0
0
0
0
Hex
3
0
0
Push this side down (OFF) for logic 1
Push this side down (ON) for logic 0
1
9
8
7
6
5
0
Binary
1
0
1
1
0
0
0
0
0
0
Hex
2
C
0
Switch Set to Base I/O
Address hex 300
Switch Set to Default
Base I/O Address hex 2C0
OFF
5
4
3
2
1
OFF
5
4
3
2
1
