using gp3 12f629

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  1. - 23rd August 2005, 01:42 #1
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    Question using GP3 12f629

    A little help please
    gp3 on the 629 does not have prog.weak pullup.
    and It can only be used as a input
    so if I use it as a "low" input just add say a 10k resistor between pin, switching device and vss and If use it as a "high" input, Pin ,resistor, switching device and Vdd.
    more of the story
    I have alway had a 10 resistor from Vdd to gp3. "Why" because the Guy that help me get started alway had it that way on the drawings he sent (his help is no longer avable) and he never used it as a input but now as I expand my playing with the 629 I would like to use it.
    GP3 is used for MCLR / Vpp If it matters I don't program in place I remove and program with pickit. Iam not sure about the master clear part
    thanks
    Last edited by grounded; - 23rd August 2005 at 02:55.
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