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???
06/20/05 11:29
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 		 #95334 - bootloader
Responding to: ???'s previous message
Donald Catto said:
Out of interest, how was he able to do that without knowledge of the 'secret' internals?

There are clues in the original T89C51RD2 datasheet. And there are also some bootloader sources around, maybe not directly for the RD2... And one still has the original bootloader available in each chip to compare... So one piece of information adds up to another...
The usual Erik's warning applies: Atmel can change the unpublished details without warning so it may stop working.

Donald Catto said:
Atmel's API code shows which registers are used, doesn't it?

Do you feel this as a way how to publish this information? And it still does not answer the problem of stack usage (and stack IS an issue on '51 platform), so one HAS to resort to disassembling to find out the details needed for proper implementing the - advertised - in-application programming functions.

Btw. Donald, did you too experience problems with IAP?

Jan Waclawek


List of 42 messages in thread
TopicAuthorDate
IAP Problem in AT89C51RD2            01/01/70 00:00      
   IAP PROBLEM            01/01/70 00:00      
      misinterpretations            01/01/70 00:00      
   IAP source            01/01/70 00:00      
      IAP source?            01/01/70 00:00      
         ..xC51x.. IAP API            01/01/70 00:00      
            oh those...            01/01/70 00:00      
               IAP            01/01/70 00:00      
                  sorry...            01/01/70 00:00      
                  IAP            01/01/70 00:00      
               Yes, but..            01/01/70 00:00      
                  bootloader            01/01/70 00:00      
                     Depressing, isn't it?            01/01/70 00:00      
                        complaining to Atmel?            01/01/70 00:00      
                           please, WHAT is the problem            01/01/70 00:00      
                              Not at all...            01/01/70 00:00      
                                 comments            01/01/70 00:00      
                                    More comments            01/01/70 00:00      
                                       comments on more comments            01/01/70 00:00      
                                          other way 'round (a pinch of irony)            01/01/70 00:00      
                                             keep it going            01/01/70 00:00      
                                                What's the point?            01/01/70 00:00      
                                          COMCOMC            01/01/70 00:00      
                                             for those of you who need this            01/01/70 00:00      
                                                straighforward?            01/01/70 00:00      
   Interrupts            01/01/70 00:00      
      The coments are in spanish if you are in            01/01/70 00:00      
         Translation?            01/01/70 00:00      
            The code            01/01/70 00:00      
   IAP on Atmel            01/01/70 00:00      
      only 16 bytes?            01/01/70 00:00      
         don't know            01/01/70 00:00      
            that might be the explanation            01/01/70 00:00      
      Are you overwriting your own code? Where            01/01/70 00:00      
         code example            01/01/70 00:00      
            IAP Problem            01/01/70 00:00      
            My Code            01/01/70 00:00      
               This looks good...            01/01/70 00:00      
   Thank U for the Great support            01/01/70 00:00      
      I see many and no U            01/01/70 00:00      
      And what was the problem???            01/01/70 00:00      
         Not Yet            01/01/70 00:00      

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