Software Installation and Configuration
Chapter 3
AT-GPIB for SCO UNIX
3-4
© National Instruments Corp.
Table 3-1 shows the software default settings for the AT-GPIB boards.
Table 3-1. Software Default Settings
Software Default Settings
Fields
gpib0
gpib1
Base I/O Address (hex)
Interrupt Vector Number
DMA Channel
260
5
7
240
10
6
If you configured your hardware with a setting other than the settings shown
in Table 3-1, you must also configure the software to match your new
setting(s); therefore, proceed to the next section, A. Change the Software
Settings .
If you configured your hardware to match the software default settings, skip
the next section, A. Change the Software Settings , and go to B. Install the
Driver.
A. Change the Software Settings
Change the base I/O address, interrupt vector number, or DMA channel
according to the instructions in this step.
DMA Channel
Open the
Master
file, which contains the following lines:
ib
ocrwis
ircH
ib
0
0
1
2
7
ib
ocrwis
ircH
ib
0
0
1
2
6
If you installed only one AT-GPIB board, change only the first line of
information.