I want COM1..4 back, not COM5

[Bill Davy]

Hi,
I'm using a piece of software (the Kiel 8051 development kit). It has a
pulldown menu to select a COM port, but they only have COM1..4 listed. I
just plugged in a PCMCIA RS232 board (brainboxes') to give me a RS232 port.
XP found new hardware but put it at COM5 so I cannot use it!
How do I persaude a new COM port to be less than COM5?
tia,
Bill

 

[Si Ballenger]

Hi,
I'm using a piece of software (the Kiel 8051 development kit). It has a
pulldown menu to select a COM port, but they only have COM1..4 listed. I
just plugged in a PCMCIA RS232 board (brainboxes') to give me a RS232 port.
XP found new hardware but put it at COM5 so I cannot use it!
How do I persaude a new COM port to be less than COM5?
tia,
Bill

If your computer has hardware serial ports, then you will need to
disable one in the bios so it's assignment will be available for
use by the card. If your computer doesn't have hardware serial
ports, then go to the advances setup for the com port and reasign
the port to a lower number. Windows may complain about the port
already being in use. Ignore this if you don't have a hardware
port enabled. I've only used this with USB serial adapters, so
YMMV.

 

[Bill Davy]

On Tue, 23 Nov 2004 12:47:32 -0000, "Bill Davy"


If your computer has hardware serial ports, then you will need to
disable one in the bios so it's assignment will be available for
use by the card. If your computer doesn't have hardware serial
ports, then go to the advances setup for the com port and reasign
the port to a lower number. Windows may complain about the port
already being in use. Ignore this if you don't have a hardware
port enabled. I've only used this with USB serial adapters, so
YMMV.

Yup. Used Device Manager | Port Settings | Advance on COM5, and then
assigned it to a lower COM port. XP had a small whinge but all seems to be
working. Phew.

Someone did suggest regedt32.exe but that's not for XP.

 

[Enkidu]

Yup. Used Device Manager | Port Settings | Advance on COM5, and then
assigned it to a lower COM port. XP had a small whinge but all seems to be
working. Phew.

Someone did suggest regedt32.exe but that's not for XP.

What makes you say that? regedt32 works perfectly well on XP!

Cheers,

Cliff

 

[Bill Davy]

What makes you say that? regedt32 works perfectly well on XP!

Cheers,

Cliff

Knowledge Base "Deleting COM Ports from a Windows NT Installation" 101730
was not relevant. OK, XP is not exactly NT but even so - it looked useful
:-(

 

[Enkidu]

Knowledge Base "Deleting COM Ports from a Windows NT Installation" 101730
was not relevant. OK, XP is not exactly NT but even so - it looked useful
:-(

OK, did you remove it in the BIOS? That is a crucial step. You
hardware provides the COM ports, Windows uses them. You need to tell
the hardware, via the BIOS not to provide the port(s) and then remove
them from Windows via the Device Manager. Take the machine down and up
again. Then down it and THEN install your device and reboot.

Cheers,

Cliff