Surface mount programming?


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  1. #1
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    mmm... yes but MCLR have to be 13 volt to program the PIC... so let's say your programmer is strong enough to power up everything... your Vdd rail willl be 13Volt and blow everything --- and this include your PIC ----

    also make sure the PGM pin is loaded to GND via a resistor or anything else.

    The programming sequence and voltage are usually explainned in some PIC datashet or in the Microchip ICSP guide bellow

    http://ww1.microchip.com/downloads/e...Doc/30277d.pdf

    in that PDF, refer to figure 1 (pdf page 13)

    this is a nice document. There's also few timing chart you may refer to.
    Last edited by mister_e; - 7th November 2007 at 22:08.
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.

  2. #2
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    The schematic shows Vpp shorted to Vdd. Vpp should go to the Vpp/mclr pin of the processor, with a pullup resistor to Vdd. Vdd should also connect to the programmer.
    On the ICD2, no Vdd is sometimes reported as mismatch, so check that Vdd is actually getting to the programmer.

  3. #3


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    THanks for the help

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