Configure The Pc/104-Gpib Interrupt Request; Figure 2-8. Pc/104-Gpib Base I/O Address Switch Settings - National Instruments PC/104-GPIB Manual

Chapter 2 Installation and Configuration

Configure the PC/104-GPIB Interrupt Request

PC/104-GPIB for Windows 95
1
9
8
7
6
5
Switch Set to Base I/O
Address hex 300
1
9
8
7
6
5
Switch Set to Default
Base I/O Address hex 2C0

Figure 2-8. PC/104-GPIB Base I/O Address Switch Settings

3. Record your new settings on the
Configuration Form
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.
Push this side down (OFF) for logic 1
Push this side down (ON) for logic 0
0
Binary Hex
1
3
1
0
0
0
0
0
0
0
0
0
0
0
Binary Hex
1
2
0
1
1
C
0
0
0
0
0
0
0
Hardware and Software
in Appendix D, Customer
2-12
Communication.
© National Instruments Corporation