question about pic16f877a and 32.768khz crystal


Closed Thread
Results 1 to 3 of 3

Hybrid View

  1. #1
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,653


    Did you find this post helpful? Yes | No

    Wink

    Hi, Amenorea

    Elektor Magazine has published a Binary clock project, some years ago ...

    http://www.elektor.com/magazines/200...ck.58374.lynkx

    Asm source available ... Programmed processor and PCB too.

    But no sleepless nights debugging a tremendous PBP soft ...

    Good level Explanations though ...

    To get better accuracy, you simply can place fixed + trimmable capacitors on one side of the Xtal ( OSC in side for Gross trim, Osc out side for fine tuning ...)

    Whether the choosen OSC ...

    OR MUCH BETTER ... use a DCF77 ( or equ.) module to reload absolute time @ regular intervals ...

    Alain
    Last edited by Acetronics2; - 17th October 2009 at 09:45.
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************

Members who have read this thread : 0

You do not have permission to view the list of names.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts