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Appendix D Troubleshooting and Common Questions
Serial Hardware and Software for Windows D-18 ni.com
Windows NT
Missing Serial Port in the niports List
PCI and PXI Boards
The serial configuration utility contains configuration information for
serial hardware that is installed in your system.
To start the configuration utility, select Start»Settings»Control Panel
anddouble-clickontheniports icon.
If your PCI or PXI serial hardware is missing from this list, complete the
following steps:
1. Physically make sure that your board is installed properly.
2. Make sure that the National Instruments serial driver is installed,
as follows:
a. Locate
serial.sys
in the
WinNT\system32\drivers
directory.
b. Right-click on
serial.sys
and select Properties.
c. ClickontheVersion tab. If the Company Name is Microsoft,
the National Instruments serial driver is not installed properly.
To solve this problem, reinstall the NI-Serial software. For
instructions on how to do so, refer to the installation and
verification chapter for your hardware platform.
AT Boards
The serial configuration utility niports contains configuration information
for serial hardware it is aware of that is installed in your system.
To start the configuration utility, select Start»Settings»Control Panel,
anddouble-clickontheniports icon.
If your AT serial board is missing from the list, follow these steps:
1. Make sure the hardware is installed.
2. Make sure you have installed the Microsoft PnP ISA Enabler driver.
niports cannot recognize the AT boards without the Microsoft PnP
ISA Enabler driver. For more information, refer to the Installing the
Microsoft PnP ISA Enabler Driver section of Chapter 5, AT Serial
Hardware Installation, Verification, and Configuration.