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PIC microcontrollers

Discussion in 'Electronic Design' started by Jeff Findley, Aug 1, 2006.

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  1. Jeff Findley

    Jeff Findley Guest

    I'm looking to get started using PIC microcontrollers and was looking for a
    good forum for discussing the basics. Questions like, given that I want to
    run an PIC18 microcontroller at 40 MHz, for the external clock, would it be
    better to use a ceramic resonator or a crystal (presumably with the required
    parallel resistor and two capacitors).

    So, is this the right newsgroup? Are there better online forums for this
    topic?

    Thanks,
    Jeff
     
  2. Try

    http://forum.microchip.com/
     
  3. Most of the PIC 18 chips, _will not_ run at 40MHz, with an external
    crystal or resonator (they will with a complete external oscillator). The
    maximum internal oscillator frequency is usually 25Mhz, but the chips have
    a *4 PLL, and you run the oscillator at 10Mhz, with the PLL enabled,to
    have the chip run at 40MHz.
    A crystal will be more accurate in general, the resonator will be cheaper.
    Microchip have a fairly good forum.
    Particular software development tools/kits, will have their own sites.

    Best Wishes
     

  4. Jeff,

    A good place to start is:
    http://www.voti.nl/swp/n_index.html
    Which also provide several usefull links including the ones below.
    Another wellknown site:
    http://www.piclist.com/techref/piclist/index.htm
    Official info on:
    http://www.microchip.com
    Which includes a link to the forum mentioned by Richard Henry.

    petrus bitbyter
     
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