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???
06/08/06 22:35
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#118046 - Answer all PC queries
Responding to: ???'s previous message
You have to answer everything the PC initiates. Normally this means an ACK or maybe a scan set #. Sometimes you have to respond RESEND if the command doesn't make sense. I have an NEC that actively sends some nonsense command every few tenths of a second. If you don't respond FE to it, it figures the keyboard has been unplugged, no matter what else you send the PC. It's dumb, but you might be running into something like that. But for sure have a response for the whole command set.

GB


List of 21 messages in thread
TopicAuthorDate
what host does to PS/2 keyboard at boot?            01/01/70 00:00      
   what host does to PS/2 keyboard at boot?            01/01/70 00:00      
   different for different OS            01/01/70 00:00      
   I think it's more a case of the BIOS            01/01/70 00:00      
   further explanation            01/01/70 00:00      
      Codes at startup            01/01/70 00:00      
         startup codes            01/01/70 00:00      
            Codes at startup            01/01/70 00:00      
      Hold the lines low until KB startup            01/01/70 00:00      
   use half of this            01/01/70 00:00      
   Protocol and MORE            01/01/70 00:00      
      Answer all PC queries            01/01/70 00:00      
      yes            01/01/70 00:00      
   Answer all PC queries            01/01/70 00:00      
   Also check this link            01/01/70 00:00      
   POR???            01/01/70 00:00      
      Re: POR???            01/01/70 00:00      
      Two methods            01/01/70 00:00      
   ps2            01/01/70 00:00      
      eh?            01/01/70 00:00      
   problem pretty much resolved            01/01/70 00:00      

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