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  1. #41
    Join Date
    Jan 2005
    Montreal, Quebec, Canada

    Default Re: Code programming error at 0000

    I doubt you have hit a limit count, never heard of one for 16F or 18F PICs. You can always check the datasheet for your particular model. If there is a limit, it will be mentionned.

    Totally wild guess, could this have anything to do with a write-protected chip? The first write went well and any further write is refused?


  2. #42
    Join Date
    Jun 2006
    Bangalore, India

    Default Re: Code programming error at 0000

    Hi Dave,

    According to the datasheet, the number of erase/write cycles this chip can take is 100,000. So this cannot be as to why you are seeing the error.
    Can you check if the MCLR pin goes to about 13v on clicking the program button without the chip in the programmer ?

    There are three common reasons as to why you could get the error:
    1) Damaged serial cable
    2) Damaged PIC
    3) The PIC was programmed the first time selecting Internal Oscillator with MCLR pin function disable.

    The third one may be the one causing the trouble for you.

    Also, write protecting a chip will not prevent it from erasing and re-writing.
    Just to eliminate any programmer faults, you can try with a new (never programmed before) chip.
    If this works, then your programmer does not provide VPP before VDD during programming.

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