Disable COM2

dennykluts · Aug 5th 2009

How can I disable COM2 so I can use IO0 to IO3 as general purpose IO? On page 2 of the Device driver documentation it is mentioned that the serial device driver for COM2 should be deactivated to use the digital IO interface. Where can I find this procedure?

Best regards,

Denny Kluts
De Heer Medicom

fs-support_MK · Aug 5th 2009

You can deactivate any driver by settings the corresponding flags value to 4 in registry. The following ndcucfg script disables COM2:

Code

reg open \Drivers\BuiltIn\Serial2
reg set value Flags dword 4
reg save

fuf · Jan 13th 2010

But disabling the driver does not disable COM2 on Bootup.
I have the problem, that while booting, IO0 and IO2 pins are high.
This would switch external hardware that I want to avoid.
How can I disable COM2 while startup.

fs-support_MK · Feb 25th 2010

This pin is faulty initialized in the bootloader. We have fixed this for the new NBoot version. We will announce the new release in the PicoCOM2 release thread .

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