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???
10/12/06 12:17
Modified:
  10/12/06 12:25
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 		 #126293 - the dangers of uncharted waters withou a pilots
Responding to: ???'s previous message
the dangers of uncharted waters withou a pilots license.

My guess is that you have written to the ISP area of the flash.

You (I believe self admitted) clearly are a novice and thus do not have your "pilots license" (experience). Thus I recommend that till you get that you stay away fron attempting to write the program flash, since that - besides blatant miswires - is the only way you acn 'lose' the sh.. eh chip.

I do not see any way we, through a forum, can make the process safe. We can, as Jan? posted give general advice (disable interrupts, stay away from low memory ...) but guarantee that you will not lose more chips - that we can not do.

If you are 'experimenting' set this aside for a while, if you are assigned this as a task in your job, attach a serial EEPROM.

Erik

List of 50 messages in thread
TopicAuthorDate
how to write in EEPROM in P89V51RD2 ?            01/01/70 00:00      
   there is no such thing as an EEPROM            01/01/70 00:00      
   eh?            01/01/70 00:00      
      I mean FLASH ...            01/01/70 00:00      
         FlashMagic            01/01/70 00:00      
            I have flash magic            01/01/70 00:00      
               that IS what FlashMagic does            01/01/70 00:00      
                  All of them ...            01/01/70 00:00      
                     I'm at a loss            01/01/70 00:00      
                  Probs is password storing ...            01/01/70 00:00      
                     you have not, see above            01/01/70 00:00      
                        just give me an idea            01/01/70 00:00      
                           datasheet            01/01/70 00:00      
                     clear question will help            01/01/70 00:00      
         read the ... datasheet            01/01/70 00:00      
            P89V51 IAP (access)            01/01/70 00:00      
         Unfortunate terminology!            01/01/70 00:00      
   I read data sheet            01/01/70 00:00      
      read about IAP!!!            01/01/70 00:00      
         IAP code example...            01/01/70 00:00      
            this is NOT for P89V51RD2!            01/01/70 00:00      
               Use 89S52 / 89S8252            01/01/70 00:00      
                  I\'d guess...            01/01/70 00:00      
            few questions ...            01/01/70 00:00      
               Do you read my posts?            01/01/70 00:00      
   I have tried but failed ...            01/01/70 00:00      
      corrupted???            01/01/70 00:00      
         Dont know            01/01/70 00:00      
            How do you know that they are corrupted?            01/01/70 00:00      
            Refer the application notes for the P89V51RD2            01/01/70 00:00      
               Detail Problem ...            01/01/70 00:00      
                  think!            01/01/70 00:00      
                     program ...            01/01/70 00:00      
                        ehm....            01/01/70 00:00      
                           Well confused!            01/01/70 00:00      
                              one has to start somewhere...            01/01/70 00:00      
                                 Flowcharts            01/01/70 00:00      
                                    I don't think it's a good idea...            01/01/70 00:00      
                        Jan ... Guide me more            01/01/70 00:00      
                           where to place the code            01/01/70 00:00      
                  BIBLE TIME            01/01/70 00:00      
                     BASICs            01/01/70 00:00      
                        A very basic question            01/01/70 00:00      
                           to Arvind            01/01/70 00:00      
                           if you mean BASIC52/RD2 v1.4beta4...            01/01/70 00:00      
      the dangers of uncharted waters withou a pilots            01/01/70 00:00      
         maybe            01/01/70 00:00      
            I would not dare that            01/01/70 00:00      
               sunset...            01/01/70 00:00      
                  Mr. Shrivastava you are Wasting other's time            01/01/70 00:00      

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