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Measurement Computing PCI-COM232 User Manual

Page 9

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Note: Please pay very close attention to your baud rate selections when using the extended baud rate
operating modes. The baud rate you select in windows will not be the actual baud rate setting of the PCI-
COM board, and it is easy to get confused regarding the speed at which the system is actually running.

2.5.1

Windows 95/98 Specific Co nfiguration

Extended baud rate operation is set on the COM port’s property page. To change to the enhanced baud
rate operating modes follow this procedure.

Right click on the “My Computer” Icon on your desktop

Click on “Properties”

Click on the “Device Manager” tab

Double click on the “Ports (COM & LPT)” Icon

Double click on the port you wish to configure

Click on the “Advanced” tab

Select the desired UART clock rate from the radio buttons as shown in Figure 2-2:

Figure 2-2. PCI-COM232 (Port1) (COM3) Properties Screen Display

2.5.2

Windows NT/2000 Specifi c Configuration

Under Windows NT the extended baud rate operation is set by the Control Panel Applet PciCom.cpl. To
change to the enhanced baud rate operating modes follow this procedure.

Click on the “Start” button on the left hand side of the task bar

Move the mouse to the “Settings” option and then click on “Control Panel”

Double click on the “PciCom” Icon

Select the desired UART clock rate from the radio buttons as shown in Figure 2-3: