©
National Instruments Corporation
D-1
PCMCIA Serial for Windows 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 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 95 so it can correctly assign resources to the serial
port. Then refer to the
Chapter 2,
.
