Serial Port Problems

How do I install more serial ports?

Click here for more info on installing multiple serial ports, IRQs, etc.

LOGic shows only a few ports in its dropdown COM port menus.  I thought it supported any COM port.

It does. LOGic displays only ports installed on your system and recognized by Windows.   See the following question.

LOGic does not show all of my serial ports in its dropdown COM port menu.

LOGic builds these menus by attempting to open COM 1 thru 64.  If Windows returns an error saying that the port does not exist, the com port is not displayed in the menu. 

This happens because Windows does not recognize the port. Serial ports are installed and managed by Windows.  LOGic and all other Windows programs then talk to the serial port using this Windows interface. Since Windows does not recognize the serial port, neither do any Windows applications.

Probably your port does not have Windows drivers installed.  Go to the Control Panel, and select Add New Hardware.  See also Resolving Serial Port Problems.

Resolving serial port problems

Resolution of this problem varies greatly depending on the cause. Here are some ideas to get you started.

• Resolve any conflicts listed in the device manager.

• Try uninstalling this port from the device manager, then let Add New Hardware in the control panel reinstall it.

• Check your CMOS setup for this port.

• Substitute hardware.

• Contact the manufacturer of your serial port card or tech support for your computer's hardware.

LOGic  main FAQ page

© October 15, 2008 by PDA

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LOGic support - serial port problems.