HELP with PORTA PIC 16F628A

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  1. - 13th February 2011, 06:13 #1
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    mackrackit
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    Default Re: HELP with PORTA PIC 16F628A

    http://www.picbasic.co.uk/forum/showthread.php?t=561
    Dave
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  2. - 13th February 2011, 08:39 #2
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    aratti
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    Default Re: HELP with PORTA PIC 16F628A

    Your column 5 doesn't work simply because PortA.4 is a Schmitt Trigger
    input and an open drain output. You will need an additional NPN transistor with a pull down resistor to make column 5 working.

    Cheers

    Al.

    PS adding CMCON = 7 on top of your code, will disable the comparators function.
    Last edited by aratti; - 13th February 2011 at 08:47.
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