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How does the external keyboard work?

OP McNugget

3rd December 2003, 08:28 PM   |  #1  
OP Junior Member
Germany: Niedersachsen: Oldenburg
Thanks Meter: 1
28 posts
Join Date:Joined: Oct 2003
Hi there,

I would like to know if there's anyone outside who connected a self build keyboard to a XDA? How does the Keyboad communicate via RS232?

Does someone know something about building a converter: PS2 to RS232 ?
What kind of information does the XDA need to notice that there's a keyboard connected?

I could try to use a simple AVR-Processor programmed to convert the signals. Building the Hardware should not be the problem but understanding the data transfer protocoll is difficult.

Any datasheet out there?
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