Appendix D
Troubleshooting and Common Questions
PCMCIA Serial for Windows 95
D-2
©
National Instruments Corporation
Selecting Conflict-Free Resources
When the resources shown under the Device Manager indicate a conflict
with another device, you can often correct the problem by manually
selecting conflict-free resources. Follow these steps to manually change
the resources of an NI serial port.
1.
Select Start»Settings»Control Panel.
2.
Double-click on the System icon.
3.
Select the Device Manager tab, and click the View devices by type
button at the top of the page.
4.
Double-click the Ports (COM & LPT) icon. A list of installed ports
appears.
5.
Double-click on the name of the serial port you want to change, then
click on the Resources tab.
Note
To change the resources of ports on two-port or four-port PCMCIA cards from
within the Device Manager, you must open the Multi-function adapters class and
double-click on the name of your interface. Use the Resources page to change the
resources. Any resource changes are automatically reflected to the child devices.
6.
Uncheck the Use automatic settings checkbox and click on the
Change Setting button. If the system does not allow you to change
settings, select the configuration that gives you a conflict-free base
I/O address and interrupt level from the Setting based on: list box.
7.
Click on OK to close the Device Manager. Your conflict problem
should be solved.
Troubleshooting Diagnostic Messages
This section lists possible Diagnostic error messages, along with solutions.
•
If the
No National Instruments serial port found
error
message appears, refer to Chapter 2,
follow these troubleshooting steps:
1.
Verify the hardware resources.
2.
Verify that the National Instruments serial driver is installed and
not the native Windows 95 serial driver.
3.
If either the serial hardware or
niserial.vxd
file is missing,
reinstall the hardware and software.
