Trouble starting PIC or internal clock on 12f683?


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  1. #9
    Join Date
    Mar 2010
    Location
    Austin, TX
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    68


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    Default Starting reliably now

    Pulling pin 4 to +5v and removing the pull-down resistor from the input allows it to start reliably now with
    @ __config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _CP_OFF

    It still only puts out fixed length pulses. If I put the pull-down back in 47k, the output stops. If I add as little as 20pf to the input, the pulses stop. There is improvement however, I now get fixed length pulses on all 4 outputs.
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    If the attachment made it, you can see my wirng and the pulses
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