Hardware Configuration and Installation
Chapter 2
AT-GPIB for SCO UNIX
2-2
© N ational Instruments Corp.
Because SCO UNIX defines the base I/O address, the interrupt line, and the
Direct Memory Access (DMA) channel, the hardware settings to which the
AT-GPIB board was configured at the factory are not suitable for use under
SCO UNIX System V/386. You must change the hardware jumper settings
to match the default software configuration settings given in Table 2-1.
Switch and Jumper Settings
Table 2-1 shows the software and hardware default settings and available
hardware configurations for the AT-GPIB board.
Table 2-1. Software and Hardware Default Settings and Available
Hardware Configurations
AT-GPIB
Software
Default
Settings
Hardware
Default
Settings
Available
Hardware
Configurations
Base I/O Address
(hex)
260
2C0
100 to 3E0
DMA Channel
7
5
5, 6, 7, and
Not Used
Interrupt Line (IRQ)
5
11
3, 4, 5, 6, 7, 9, 10,
11, 12, 14, 15, and
Not Used