>
> --- In oopic@yahoogroups.com, "minghui1984" <minghui1984@> wrote:
> >
>
>
> My notebook PC has 2 USB ports, and there doesn't seem to be an easy
> way to specifiy which COMPORT the USB dongle maps into. Maybe someone
> else knows how to do this.
Right click on My Computer and select Properties
Select the Hardware tab and click on Device Manager
Right click on the COM port of interest and select Properties
Select the Port Settings tab and click on Advanced
There will be a drop-down list at the bottom of the dialog that shows
the current COM port assignment. Select a COM port number that is not
in use.
There may be a LOT of COM ports that indicate '(in use)' and you know
they don't exist. These are remnants of USB VCOM ports that are known
but not active. The COM port numbers may be reused if necessary. In
my case there are about 20 VCOM ports left over from various projects.
For V5 of the IDE, the COM port must be 1,2,3 or 4. Other ports may be
used with V6.
If you are unsure about WHICH USB port to deal with, unplug it and the
device will disappear from the list in Device Manager. Reconnect the
USB device and it will reappear in the list.
All of the above applies to WinXP.
Richard
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