AppendixD Troubleshootingand Common Questions
SerialHardware and Software for Win dows D-16 ni.com
Howdo I change the resources assigned to the serial interface?
♦PCI and PXI Boards
The PCIand PXI serial boards are configured as devices belonging to the
multi-function adapters class. The multi-function parent device is listed
underthe Multi-function adapters icon, and each child device is listed as
ap ort under the Ports (COM & LPT) icon.
Tochange the resources of serial ports, complete the following steps:
1. In the Device Manager tab, under Multi-function adapters,
double-click on a serial interface.
2. Clickon the Resources tab to chan ge the resources. Yourchanges are
automatically reflected to the child devices under Ports (COM &
LPT).
♦ATand PCMCIA Boards
Because the shared IRQ boardsa resingle physical devices that support
multiple ports, theyare registeredas “multi-funct ion adapters”in the
DeviceManager. Each port is a child device listed under Ports ( COM &
LPT).WindowsMe/9xdoesnot allow the resources of the multi-function
childdevices to be changed directly.
Tochange the resources of ports on shared IRQ boards from within the
DeviceManager, you must open the Multi-function adapters class and
double-click on the Multi-function Parent item that corresponds to your
NationalI nstruments serial interface.Use the Resources page to change
theresources. Any resource changes are automatically reflected to the child
devices.Figure D-4 shows the Multi-function adapters class in the
DeviceManager. (This example shows an AT interface.)