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03/08/04 16:55
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 		 #66263 - Entering ISP with destroyed pin ?
I have a problem here :

Pin P2.7 of Philips p89c668 microcontroller is possibly blown up as it has got internally shorted with ground.
Now, is it possible to perform ISP ?
The datasheet clearly mentions that P2.7 is required to be kept high to boot into ISP mode.

Please let me know a way to program this expensive microcontroller under above condition.


List of 67 messages in thread
TopicAuthorDate
Entering ISP with destroyed pin ?            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         Utopia            01/01/70 00:00      
            RE: Utopia            01/01/70 00:00      
               RE: Utopia            01/01/70 00:00      
                  RE: Utopia            01/01/70 00:00      
                     RE: Utopia            01/01/70 00:00      
                     RE: Utopia            01/01/70 00:00      
                        RE: Utopia            01/01/70 00:00      
                           RE: Utopia            01/01/70 00:00      
                              RE: Utopia            01/01/70 00:00      
                                 RE: Business opportunity            01/01/70 00:00      
                                 Programmers            01/01/70 00:00      
                                    RE: Programmers            01/01/70 00:00      
                                       RE: Programmers            01/01/70 00:00      
                                          RE: Programmers            01/01/70 00:00      
                                    RE: Programmers            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
   What to do with a damaged chip?            01/01/70 00:00      
      RE: What to do with a damaged chip?            01/01/70 00:00      
      RE: What to do with a damaged chip?            01/01/70 00:00      
   Living dangerously..            01/01/70 00:00      
      RE: Living dangerously..            01/01/70 00:00      
         RE: Living dangerously..            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
   RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
      RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
         RE: Entering ISP with destroyed pin ?            01/01/70 00:00      
            Multimeter check on ICs            01/01/70 00:00      
               RE: Multimeter check on ICs            01/01/70 00:00      
   OH, by the way            01/01/70 00:00      
      RE: OH, by the way            01/01/70 00:00      
         RE: OH, by the way            01/01/70 00:00      
            Time is more expensive!            01/01/70 00:00      
               RE: Time is more expensive!            01/01/70 00:00      
               RE: Time is more expensive!            01/01/70 00:00      
            RE: OH, by the way            01/01/70 00:00      
         RE: OH, by the way            01/01/70 00:00      
            RE: OH, by the way            01/01/70 00:00      
      Idea.            01/01/70 00:00      
         RE: Idea.            01/01/70 00:00      
            RE: french fried chips            01/01/70 00:00      
               RE: french fried chips            01/01/70 00:00      
                  Why not using the Hammer-effect?            01/01/70 00:00      
      RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
         RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
            RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
               RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                  RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                     RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                        RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                           RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                           RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                              RE: OH, by the way NEVER DO THIS            01/01/70 00:00      
                              PSEN- Bartosz            01/01/70 00:00      
                                 RE: PSEN- Bartosz            01/01/70 00:00      
                                    RE: PSEN- Bartosz            01/01/70 00:00      
                              RE: OH, by the way NEVER DO THIS            01/01/70 00:00      

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