Testing PIC16F628A with one LED - Which PCB and fuses?


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    Join Date
    May 2008
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    Default Testing PIC16F628A with one LED - Which PCB and fuses?

    Hi!

    For my 16F628A PIC, I made a simple circuit based on:
    http://walter.schreppers.com/files/f..._schematic.gif
    But I get no life signs.

    I wonder what is the most common Config for Fuses.
    My fuses are set with no external clock or MCLR, and I've tried WDT On or Off. My current is USB power (~ 4.7V).
    This is exactly the same power that I use to write and read EEPROM 24Cxx I2C.
    I've tried a lot of capacitors (From 1n to 100n) near of the PIC chip.
    When I program the PIC with a JDM-kind programmer, all is ok and acknowledges everything,
    but when I put it on a solderless board, I can't find any way to light the led, as if the PIC wasn't running at all.

    And nothing is working!
    Last edited by ley0; - 12th May 2008 at 17:43. Reason: No expressed correctly, thank

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