SV: [Icc-avr] iccavr comport range/usb com port number

[Bengt Ragnemalm]

Thanks Bob!

I was aware of the problem but not that it was so easy to get rid of. I just
tested (reboot is not necessary) and I had unused COM-ports from previous
Bluetooth devices from 53 to 92! I am a little curious about what had
happened with COM port 3 to 52 though. Do unused ports uninstall themselves
with time? Maybe they sneak out through some cracks in the Windows.

 

/Bengt

 

  _____  

Från: icc-avr-bounces at imagecraft.com [mailto:icc-avr-bounces at imagecraft.com]
För Graham Whyte
Skickat: den 1 april 2008 19:58
Till: Discussion list for ICCAVR and ICCtiny Users. You do NOT
needtosubscribeto icc-announce if you are a member of this.
Ämne: RE: [Icc-avr] iccavr comport range/usb com port number

 

Hi Bob

 

I use USB serial from time to time

In its properties in device manager you can usually set it to any available
port #

 

There is a problem seeing which ports are already allocated to non-present
devices

You need to get device manager to reveal unused but allocated ports

There could be many from previous bluetooth or cellphone installations for
example

 

This method below works really well

 

Go to Control Panel / System

Click Advanced tab

Click Environment Variables button

In Sytem Variables click New button

Create a variable called DEVMGR_SHOW_NONPRESENT_DEVICES

Set its value to 1

OK back out of everything

 

Re-boot ???

 

Now if you go to Device Manager you can click View menu and check Show
hidden devices

You can now see all the unused com ports from previous installations

These can be removed by right clicking and selecting Uninstall

I had 14 dead ones last time I did this

 

You should be able to free up down to com4 or less

Then set the USB port #

 

Graham

 

 

 

-----Original Message-----
From: icc-avr-bounces at imagecraft.com
[mailto:icc-avr-bounces at imagecraft.com]On Behalf Of bobgardner at aol.com
Sent: 01 April 2008 18:27
To: icc-avr at imagecraft.com
Subject: [Icc-avr] iccavr comport range/usb com port number

I zapped the com1 on my iccavr machine... plugged it into the wrong place...
I'll try and use a USB serial port but it looks like its com9 or 10... can
anyone think of a way to get the USB port down into the com1-4 range? I
guess I should uninstall the driver for com1... maybe that would free it up?
Anyway of getting more com port choices in the terminal window Richard?

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