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Best way accessing UART,DAC,ADC and SPI pins connecting directly to starter kit

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andre
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2009/03/30 15:08:29 (permalink)
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Best way accessing UART,DAC,ADC and SPI pins connecting directly to starter kit

Hi All,
 
is there a way to access UART,SPI and ADC/DAC pins on the pic32 uC without
having to use an extension board which uses the 120 pins Hirose connector.
Getting that single connector is difficult and also expensive although I need
to connect only about 20 wires to the pic32 processor. I am considering removing
the Hirose 120 pins connector to connect the wires to place where the connector
used to be.  In my prototype I don't have room to put the extension board, the
pic32 starter board barly fits.... anybody out there that has done that before?
 
The other question is : is there anywhere specified to what the pins in the attached
picture, which is taken from the back of the starterkit are connected or what the
purpose is of that area? Could there be a specific module/component or is it used
for testing the board?
 
Where in the PIC32 starter kit 120 pins connector layout specified, the only place
that I can find any information on that is in the extension board schematics
 
http://ww1.microchip.com/downloads/en/DeviceDoc/I_O_Expansion_Board_Schematics_RevB.pdf
 
and than the card-edge-connector in that schematic (J3).
 
 
Just another question, what is the definition of the J3 connector on the PIC32 start kit which are
6  hollow 'tubes' on the top  of the board.
 
 
Thanx a lot in advance
 
 
André

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4 Replies Related Threads

    Neiwiertz
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    RE: Best way accessing UART,DAC,ADC and SPI pins connecting directly to starter kit 2009/03/30 15:29:53 (permalink)
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    Don't know if this might be helpfull for what you are looking for,

    Those boards of Eflightworks of Eric (Ohmite)

    Have other form of extension and addtional have look here E16 board hardware related wings
    (maybe there is something to find about the Card Edge Card (simular as the protocard)),
    The Horizontal (at the graphic pictail plus) and Vertical (at the E16) Connectors are from Samtec.
    post edited by Neiwiertz - 2009/03/30 15:32:57

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    andre
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    RE: Best way accessing UART,DAC,ADC and SPI pins connecting directly to starter kit 2009/03/30 15:30:24 (permalink)
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    andre
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    RE: Best way accessing UART,DAC,ADC and SPI pins connecting directly to starter kit 2009/03/30 15:40:16 (permalink)
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    Thnx Neiwiertz for your info,
     
    Basicly I do nat have room for an extension board as your Eflightworks boards.
     
    Question 4 u : which board specificly are you refering to in the E16 hw releated wings (second URL), I'm just stated using the PIC32 last week so I am jist a newbee.....
     
    André
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    Rich T
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    RE: Best way accessing UART,DAC,ADC and SPI pins connecting directly to starter kit 2009/03/31 08:37:03 (permalink)
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    > The other question is : is there anywhere specified to what the pins in the
    > attached picture...
     
    It almost looks like that may be for an alternate form factor (QFP) of the ICSP
    (In Circuit Serial Programming?) MCU (PIC18, QFN) on the top side of the board.
     
    > Where in the PIC32 starter kit 120 pins connector layout specified...
     
    If you are referring to the 132 pin connector, it is documented on page 40 of
    the PIC32MX Starter Kit User’s Guide at:
     
      http://ww1.microchip.com/downloads/en/DeviceDoc/PIC32_UsersGuide.pdf
     
    There is a similar schematic for the USB version of the chip in its user's guide,
    but beware -- many pins subtly change places/functions between the USB
    and non-USB versions of the chip, not to mention between 64 pin and 100 pin
    variants.  (If you only look at the extension board schematics or pin names it
    may be quite misleading.)
     
    > Just another question, what is the definition of the J3 connector...
     
    That is the ICSP connector which is how the PIC18 controls the PIC32 on your
    Starter Board.  Presumably, you could use that to control an off-board PIC32
    as well (or maybe even to control the on-board PIC32 from an off-board ICSP).
     
    If you have room for it and you want to play with the ICSP connectors for
    programming/debugging it, you might also consider this board to break out all
    the pins in a convenient form factor:
     
      http://www.sparkfun.com/commerce/product_info.php?products_id=8971
     
    -- Rich
     
     

    Embedded Systems Made Easy: http://www.cpustick.com/
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