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???
01/24/06 21:33
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 		 #108234 - using !CS
Responding to: ???'s previous message
is not going to work. how are you going to read it as code memory and not write it as data memory. when the program is running from the external code memory !CS need be low, so no "write protection" can exist

eRIK

List of 26 messages in thread
TopicAuthorDate
External Flash In-System Programming            01/01/70 00:00      
   Additional hardware also needed            01/01/70 00:00      
      The micro can write the external FLASH            01/01/70 00:00      
         do a search on IAP            01/01/70 00:00      
         Are you sure?            01/01/70 00:00      
            Writing external flash only programming            01/01/70 00:00      
               Somehow it would be nice, albeit seeming            01/01/70 00:00      
                  I know the OP did not answer explicitly,            01/01/70 00:00      
                     I do not think so            01/01/70 00:00      
                        cunning scheme            01/01/70 00:00      
                           nope            01/01/70 00:00      
                              yep, that's your way, but the OP wants..            01/01/70 00:00      
                                 using !CS            01/01/70 00:00      
                                    In the olden days            01/01/70 00:00      
                                    what's the problem?            01/01/70 00:00      
                                       Unless            01/01/70 00:00      
                     just a nagging doubt...            01/01/70 00:00      
               Yes, it's been done in another context            01/01/70 00:00      
               clarification            01/01/70 00:00      
   8052SBC Example            01/01/70 00:00      
   The HW is prepared            01/01/70 00:00      
      yes and no            01/01/70 00:00      
         I don't know for this particular derivat            01/01/70 00:00      
      why on earth?            01/01/70 00:00      
         In-System Programming            01/01/70 00:00      
            simple, then            01/01/70 00:00      

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