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Mohit Gupta
12/01/13 22:00
Read: 1473 times


 
#190172 - PS2 Keyboards are not working
Responding to: Andy Neil's previous message
Hey Andy,

My new and old Keyboards are working fine with ARM and AVR microcontrollers.
But new PS2 keyboards are not working with 8051 but Old keyboard works.
Is there be any issue with pull up lines. I have attached a RES8-PACK(9 pin 10K pullup sip).
I had checked the timing waves on Oscilloscope and it seems ok.

Thanks & Regards,





List of 16 messages in thread
TopicAuthorDate
Old PS2 Keyboards (White) Working, New Keyboard not working      Mohit Gupta      11/28/13 23:59      
   "working fine" (sic)      Andy Neil      11/29/13 01:28      
      PS2 Keyboards are not working      Mohit Gupta      12/01/13 22:00      
          "working fine" (sic)       Andy Neil      12/02/13 02:21      
   Maybe this will help      Richard Erlacher      12/04/13 11:19      
      Here's a link that might be useful      Richard Erlacher      12/20/13 05:30      
         Dead horse?      Andy Neil      12/20/13 15:33      
            Far too many queries fail to define "working"        Richard Erlacher      12/21/13 01:13      
               Working      Mahmood Elnasser      12/21/13 01:34      
               RE: Far too many queries fail to define "working"      Andy Neil      12/21/13 02:18      
               The difference between "Engineering" and just hacking?      Andy Neil      12/21/13 02:48      
                  The core of engineering is not experimenting        Richard Erlacher      12/24/13 02:03      
                     experimenting equals ....      Erik Malund      12/25/13 10:23      
                        Yes ... likewise, believing the first page of the datasheet      Richard Erlacher      12/26/13 01:16      
                           RE: believing the first page of the datasheet      Andy Neil      12/26/13 06:56      
                              Exactly!      Richard Erlacher      12/26/13 13:37      

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