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infoinfo973
infoinfo973
Associate
November 4, 2010
Question

Why must the RCC declared for GPIO

  • November 4, 2010
  • 2 replies
  • 720 views
Posted on November 04, 2010 at 09:41

Why must the RCC declared for GPIO

    This topic has been closed for replies.

    2 replies

    Andrew Neil
    Andrew Neil
    Super User
    May 17, 2011
    Posted on May 17, 2011 at 14:13

    The GPIOs (in fact, all the peripherals) will not work unless their clocks are suitably configured & enabled!

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    Tesla DeLorean
    Tesla DeLorean
    Guru
    May 17, 2011
    Posted on May 17, 2011 at 14:13

    a) The design is synchronous

    b) An unclocked CMOS circuit draws the least power

    c) You only need to turn on the parts of the device you plan on using (at all, or currently)

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