Inconsistent output on a 4x4 matrix keypad


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  1. #8
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    mmm, just double/triple/quad check the whole thing...
    it appear that the TRIS work better if before the PORT/LATB line ....DOH!

    BUT if you want to use the 'Microchip says' approach (write to PORT before TRIS), replace @ nop by @ GOTO $+2

    That way... it works ... a treat

    M.F.Sorry!
    Last edited by mister_e; - 23rd November 2006 at 08:15.
    Steve

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

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