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DS89C450 code burning problem.

Bhai jagtap jagtap

Hello Everybody,

I have a EPROM programmer at my college. I wanted to burn code in my DS89C450 uC.
the programmer had only DS89C420. i checked the datasheet it says that the 2 IC's are pin compatible and applications using DS89C420 can be replaced with DS89C450. When i tried burning my code the programmer says " MANUFACTURER'S CODE NOT MATCHED". what does it mean and what should i do?

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  • 0 in reply to Andy Neil

    Not too much problems with chips that lets out the magic smoke from incorrect programming parameters.

    The big problem is chips that just got a little bit damaged, or chips that was "almost" programmed. I.e. chips that gets sent out to a customer and then fails.

    When the chip blows up directly while being programmed, it's just a fixed learning cost, not to program with wrong algorithms.

  • 0 in reply to ImPer Westermark

    Not too much problems with chips that lets out the magic smoke from incorrect programming parameters.

    The big problem is chips that just got a little bit damaged, or chips that was "almost" programmed. I.e. chips that gets sent out to a customer and then fails.

    When the chip blows up directly while being programmed, it's just a fixed learning cost, not to program with wrong algorithms.
    the pro will agree with you, the amateur not

    Erik