Fitting a new micro to an old PCB

Discussion in 'General Electronics Chat' started by atferrari, Sep 11, 2010.

  1. atferrari

    Thread Starter AAC Fanatic!

    Jan 6, 2004
    2,644
    759
    There is a circuit driving two steppers with a micro plus a gate array.

    The pins used to activate the functions I need, belong to both. I will replace them with just a micro programed by me.

    I do not want to do any "surgery" in the circuit other than desoldering them and auxiliary ICs not needed..

    My doubt is what could be the best way to fit the micro to the board.

    Just in case you ask, no way to solder it in the place left free by the other two chips.

    Ideas anyone?
     
    Last edited: Sep 11, 2010
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    That description is awfully vague as to things like how much space is available. You might be able to make a kind of daughterboard to hold the new microprocessor and simply use wires to jump the power and control signals.

    I would bet you will be wishing you had a completely new layout before long.
     
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