On 7 Feb 2005 00:17:38 -0800, eeh <eehobbyist@yahoo.com.hk> wrote:

> I need to interface to a PC Keyboard by MCU. I can get key from it.
> Howeever, I also need to turn on or off its num lock LED indicator. I
> have tried but failed to do that.

Have a look here:
http://www.computer-engineering.org/
http://www.beyondlogic.org/keyboard/keybrd.htm


HTH,
   Vadim

Hi,

I need to interface to a PC Keyboard by MCU. I can get key from it.
Howeever, I also need to turn on or off its num lock LED indicator. I
have tried but failed to do that. Could anyone kindly give an example
code (C or asm) to me?

Thanks!