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???
02/13/07 14:58
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 		 #132770 - Eh?
Responding to: ???'s previous message
Tom Paden said:
you will find that many will vary in subtle ways (timing especially), making it difficult to design, especially since these standards are closely guarded secrets held by the BIOS manufacturers.

Nonsense!

Provided you work to the PS/2 spec, you should be able to use any keyboard that works to that same spec.

That's how you can take any PS/2 keyboard and plug it into any PC and not have to worry about it not working!



List of 44 messages in thread
TopicAuthorDate
8051 with PS/2 keyboard            01/01/70 00:00      
   keyboard protocol            01/01/70 00:00      
      Hey Dennis            01/01/70 00:00      
         bit banging examples            01/01/70 00:00      
         ???            01/01/70 00:00      
            Ok then,            01/01/70 00:00      
               crawl, walk, run            01/01/70 00:00      
                  Actually            01/01/70 00:00      
            I read it all again,            01/01/70 00:00      
               why bother?            01/01/70 00:00      
                  or ...            01/01/70 00:00      
                  I have tried using            01/01/70 00:00      
                     Not instructions            01/01/70 00:00      
                        So, if he did not state which assembler he uses            01/01/70 00:00      
                           yes            01/01/70 00:00      
                              I read the assembler manual;            01/01/70 00:00      
                                 Number format?            01/01/70 00:00      
                                    read through the assembler manual            01/01/70 00:00      
                                       Done, as well as reading your links            01/01/70 00:00      
                                          Is P1 defined?            01/01/70 00:00      
                                             That was indeed the problem            01/01/70 00:00      
                                                * $            01/01/70 00:00      
                                                   Thanks a lot            01/01/70 00:00      
                                                      That's always the way!            01/01/70 00:00      
                                                         Actually that's a code            01/01/70 00:00      
                                                            do you have a "main"?            01/01/70 00:00      
                                                               My hardware is AT89S52            01/01/70 00:00      
                                                                  that may never happen            01/01/70 00:00      
                                                                     Check this out:            01/01/70 00:00      
                                                                        OK, so you did check it            01/01/70 00:00      
                                                            You assume too much!            01/01/70 00:00      
               do not translate            01/01/70 00:00      
                  which assembler?            01/01/70 00:00      
   turnkey solutions, free, but not 805x            01/01/70 00:00      
      The whole exercise - As I See It - IMHO.            01/01/70 00:00      
         If he's willing to do the work ...            01/01/70 00:00      
   www.computer-engineering.org/ps2protocol/            01/01/70 00:00      
      Hello Stefan,            01/01/70 00:00      
         See also            01/01/70 00:00      
         ps2 keyboard prototcol            01/01/70 00:00      
   More reference material            01/01/70 00:00      
      Eh?            01/01/70 00:00      
         ps2 protocol            01/01/70 00:00      
            Already done            01/01/70 00:00      

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