PIC18F4850 will not oscillate

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  1. - 8th March 2011, 21:33 #3
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    Default Re: PIC18F4850 will not oscillate

    Hello,
    You also need to have the MCLR connected to the U2 programer. I did not see it connected in your schematic or discription? Set the config to "HS" and it should work.

    I am sure you have seen this page
    http://melabs.com/support/icsp.htm

    Power your circuit with an external 5v supply
    connect U2 with GND, PGD, PGC and VPP(mclr) to the PIC
    Last edited by mark_s; - 8th March 2011 at 21:54. Reason: add link
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