©
National Instruments Corporation
D-1
PCMCIA Serial for Windows 98/95
D
Troubleshooting and
Common Questions
This appendix describes how to troubleshoot problems and answers some
common questions.
Freeing an Interrupt Request Level
To free an interrupt request level for the serial port, you must disable a
device that is using an interrupt request level. To view the system-wide
allocation of interrupt request resources and remove a device, perform the
following steps.
1.
Select
Start»Settings»Control Panel
.
2.
Double-click on the
System
icon.
3.
Select the
Device Manager
tab.
4.
Double-click on the
Computer
icon at the top of the Device Manager
list of devices.
5.
Click on the
View Resources
tab.
6.
Select the
Interrupt Request (IRQ)
button. By scanning through the
list of interrupt request settings, you can determine which devices are
using which interrupt request levels.
7.
When you have located a device which you are not currently using,
click on
Cancel
to exit the
Computer Properties
window.
8.
Double-click on the icon for the device in the Device Manager list of
devices. In the
Device usage
field at the bottom of the
General
page,
a checkmark appears to the left of the current configuration, usually
Original Configuration (Current)
.
9.
Click on the checkbox to remove the checkmark.
10. Make sure that
Use automatic settings
is unchecked on the
Resources
page, then click on
OK
.
11. Restart Windows 98/95 so it can correctly assign resources to the serial
port. Then, refer to the
section of
.
Summary of Contents for PCMCIA Serias
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