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 5 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 5 and all other Windows programs then talk to te 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.

 

I get an ERROR 31 OPENING COM x

This is a Windows General Device Failure error.   Port hardware is bad or configured improperly, or Windows configuration is incorrect.   The device manager may show no problems with the port. 

If you have a port on your system that cannot be opened and yet is not in use by another program, you will get this error multiple times when going to tools/setup/misc ham setup.  However, if you are persistant, it will let you in!   It occurs once for each com port dropdown list field in this form. 

See Resolving Serial Port Problems.  Note that while this error is a nuisence and is indicitave of   system problems, it does not affect the operation of LOGic at all.  LOGic just pretends the port doesn't exist.

 

Resolving serial port problems

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

LOGic 5 main support page

© July 28, 2002 by PDA