Special Instructions for Changing the Software Settings
Appendix B
AT-GPIB for SCO UNIX
B-2
© National Instruments Corp.
5.
Relink the kernel by changing to the directory
/etc/conf/cf.d
and
entering the following command:
./link_unix
This causes the file
/etc/conf/pack.d/sio/space.c
to be
recompiled and builds a new kernel.
Using Interrupt Vector Number 11 or DMA
Channel 5
The software default for interrupt vector number is 5 and the software
default for DMA channel is 7 for the AT-GPIB board. The default SCO
UNIX kernel contains the Adaptec SCSI driver, which uses interrupt vector
number 11 and DMA channel 5. If you are not using an Adaptec SCSI
driver, you can remove the Adaptec SCSI driver from the SCO UNIX
kernel and use interrupt vector number 11 and DMA channel 5 for the
AT-GPIB board. To remove the Adaptec SCSI driver from the SCO UNIX
kernel, complete the following steps:
1. Bring the system up in single-user mode and log in as root.
2. Make a backup copy of the following files:
•
/etc/conf/sdevice.d/ad
•
/etc/conf/sdevice.d/Sdsk
•
/etc/conf/sdevice.d/Stp
•
/etc/conf/cf.d/mdevice
•
/etc/conf/cf.d/mscsi
3. Edit the file
/etc/conf/sdevice.d/ad
and change the second
field from a
Y
to an
N
.
4. Edit the file
/etc/conf/sdevice.d/Sdsk
and change the
second field from a
Y
to an
N
.
5. Edit the file
/etc/conf/sdevice.d/Stp
and change the second
field from a
Y
to an
N
.