ON 20040303@2:35:05 AM at page:
http://www.piclist.com/techref/member/DZ-yahoo-/index.htm#38049.1076851852
Douglas  Zhang[DZ-yahoo-] Questions:

hi,all <BR>
I am doing a PS2 keyboard interfacing project with the microcontroller but meet some strange problems: <BR>
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1. It usually sends out two or three bytes when a key is pressed, but none of them is the value in the keyboard translation table. <BR>
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2. When connecting the keyboard to a pc at the same time, the bytes sent out are different from those without connection to pc. And they are always changing. However, the pc can get the input without any error. <BR>
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3. The clock input ususally seems causing 12 cycles when a byte is being sent, but according to the sources online it should be 11 cycles. <BR>
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Could anyone give some thoughts on those problems to me ?? <BR>
I am also wondering whether we need to do some initializations to the keyboard. Do anyone have any ideas about that?? <BR>
Thanks in advance