16f628 Help Me And My Pupils!!!!!!!

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  1. - 11th March 2006, 10:45 #1
    Luciano's Avatar
    Luciano
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    Hi,

    Make sure the PIC and the 4026B use the same +5V and same GND.

    See page 20 and 21 of this PDF.
    http://www.rev-ed.co.uk/docs/PIC_electronics.pdf

    Best regards,

    Luciano
  2. - 11th March 2006, 17:37 #2
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    DynamoBen
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    Luciano, thats a great document. Any others that might be usefull?
  3. - 16th March 2006, 14:48 #3
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    Default Some more success!!!

    The PIC worked on the breadboard today and when linked to the standard PCB it worked. However, when I placed the PIC in the same PCB and power supply the circuit stopped working. I have attached a PCB copy of the circuit
    Attached Files Attached Files
  4. - 17th March 2006, 00:37 #4
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    Any schematic?
    Any Filtering problem?
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
  5. - 24th March 2006, 20:44 #5
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    Try sticking a large Cap across the power supply. To insure good filterization. Another thing... the MCLR pin...is it held high at one place and not the other? Or is it floating? If so, program it in the Define to stay high.

    Dwayne
    Ability to Fly:
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