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Pickit3 Adapter Board Info

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Paul Haug
2017-03-08
2017-03-08
  • Paul Haug

    Paul Haug - 2017-03-08

    Can someone point me to an instruction sheet or other source for the jumper settings for the adapter board. The jmpr settings are on the back (in such tiny print) but they don't make a ot of sense to me.
    I am trying to setup for PIC18F26K20, shown in the socket. According to the diagram on the back, that is the corect position in the socket for this chip (have not powered it up with chip in socket).
    The CD that came with it is all in Chinese, so no info there that I can read.
    Downloaded Microchip PICKIT3 programmer/debugger and that works, but to start debugging a program I need the proper jumper settings on the adapter.
    Paul

     

    Last edit: Paul Haug 2017-03-08
  • William Roth

    William Roth - 2017-03-08

    I've no experience with such a board. There have been some others with the same questions with this or a similar product. I am not sure if anyone has ever solved the mystery of the jumper settings But you have the same or more information as anyone else here.

    All I can tell you is that

    PIC Pin 4 ----> Pickit Pin 1 MCLRE
    PIC Pin 20 -----> Pickit Pin 2 Vdd
    PIC Pins19,8 ----> Pickit Pin 3 Gnd
    PIC Pin 28 ----> Pickit Pin 4 ICSP Data
    PIC PIN 27 -----> Pickit Pin 5 ICSP Clock

    There must be a 10K resistor from PIC Pin 4 (MCLRE) to Vdd

    If it were me and I had one of these adapters I would get my DMV and do continuity tests while playing with the jumoers until the above connections were corrrect.

    My personal preference is to use a simple breadboard instead of one of these contraptions. You do not need this device to program or debug.

     

    Last edit: William Roth 2017-03-08
  • Paul Haug

    Paul Haug - 2017-03-08

    *> > You do not need this device to program or debug.

    PIC Pin 4 ----> Pickit Pin 1 MCLRE
    PIC Pin 20 -----> Pickit Pin 2 Vdd
    PIC Pins19,8 ----> Pickit Pin 3 Gnd
    PIC Pin 28 ----> Pickit Pin 4 ICSP Data
    PIC PIN 27 -----> Pickit Pin 5 ICSP Clock
    There must be a 10K resistor from PIC Pin 4 (MCLRE) to Vdd
    *> Thanks William, I will do my own simple BB.
    The above wiring is in the PICkit3 user guid, so no problem doing my own conections, but will use yours as a double check.
    Again, many thanks for all your help.

     

    Last edit: Paul Haug 2017-03-08
  • Paul Haug

    Paul Haug - 2017-03-08

    William,
    See next post. Sorry, keep hitting wrong keys.

     

    Last edit: Paul Haug 2017-03-08
  • Paul Haug

    Paul Haug - 2017-03-08

    William,
    Your pinout description left me confused. Here are the PICKit3 wires to a PIC18F26k20.
    Your the expert so am I off base ?

     

    Last edit: Paul Haug 2017-03-08
  • William Roth

    William Roth - 2017-03-08

    Good Catch,

    Master Clear is indeed Pin 1 on 28Pin devices.

    However Pickit Pin 6 ( PGM) Is not used when Programming newer PICs. This is for very old PIC chips that use a PGM pin for Low Voltage Programming. .

     
  • Paul Haug

    Paul Haug - 2017-03-08

    Again, many thanks. I will remove PicKit pin 6 from my preliminary drawing.

     

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