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ZhiXiong
02-21-2001, 05:25 AM
I want design a small PC compatible keyboard,although I have know much about the keyboard,I still can not start my jop.I wander how the 1st pin (clock) and the 2nd pin(data) in keyboard port work together with,and that when POST what data dose the keyboard microcontroler 8049 transit to
8042 on motherboard.

IF you know the something about keyboard priciple ,or you have the keyboard priciple circuit ,please email to econtact@yeah.net.

Reid
02-24-2001, 07:42 PM
These links may help: http://www.cs.cmu.edu/afs/cs/usr/jmcm/www/info/key2.txt http://webster.cs.ucr.edu/Page_asm/ArtofAssembly/CH20/CH20-7.html http://www.repairfaq.org/filipg/LINK/PORTS/F_Keyboard_FAQ.html

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reido@my-deja.com

Friends don't let friends install Windows ME

herbert
02-25-2001, 07:17 PM
This might be useful to you also:
http://www.beyondlogic.org/keyboard/keybrd.htm

-real hardware stuff.

ZhiXiong
02-27-2001, 08:32 AM
To Reid and herbert:
Thank you for give me those web site,I think I have got enough
information.
As this is my first question in this forum,I'm very glad that so many friends help me.Thank you a lots!!!