Pls How can I make 16F877A use 15MHz Xtal

Closed Thread
Results 1 to 31 of 31

Hybrid View

  1. - 19th April 2007, 08:14 #1
    Melanie's Avatar
    Melanie
    Melanie is offline Prolific Poster
    Join Date
    Jul 2003
    Posts
    2,358

    Did you find this post helpful? Yes | No

    Default

    Geeze... and you'll be sticking 15pF Condensers around your crystal next...
  2. - 21st April 2007, 06:29 #2
    Archangel's Avatar
    Archangel
    Archangel is offline SuperMod
    Join Date
    Aug 2006
    Location
    Look, behind you.
    Posts
    2,818

    Did you find this post helpful? Yes | No

    Talking Now we are talking old school . . .

    Quote Originally Posted by Melanie View Post
    Geeze... and you'll be sticking 15pF Condensers around your crystal next...
    Tsk, Tsk, Tsk Melanie, Condensers? I hope you learned that one from a history book , oh . . . that would be 15 uuf condensers
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
    .
    There simply is no "Happy Spam" If you do it you will disappear from this forum.
  3. - 21st April 2007, 06:36 #3
    skimask's Avatar
    skimask Guest

    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by Acetronics View Post
    Hi, Skimask...ALL the pics I use are "overclocked" to their max. "µChip" freq. ... my old 16F84-04, 16F628-04, 16F876-04, 16F877-04 and else happily run @ 20 mhz. 32 Mhz is not really surprising nor, I often read about !!! this fact is well known, also well known those chips have not being TESTED over the whole voltage, temp. and freq. range !!! Just keep in mind those overclocked chips are not guaranteed by µChip ... that's the only point to care with when professionnal use !!! May be we also might point out that , these days, "Non Rohs" devices are sold at a really fair price ...
    Alain
    I've always wanted to apply 'standard' PC overclocking techniques to a PIC, just to see what it would do...

    Quote Originally Posted by Joe S. View Post
    Tsk, Tsk, Tsk Melanie, Condensers? I hope you learned that one from a history book , oh . . . that would be 15 uuf condensers
    Now I feel the need to 'tickle a diode' for entertainment...
  4. - 21st April 2007, 09:15 #4
    Melanie's Avatar
    Melanie
    Melanie is offline Prolific Poster
    Join Date
    Jul 2003
    Posts
    2,358

    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by Joe S. View Post
    Tsk, Tsk, Tsk Melanie, Condensers? I hope you learned that one from a history book , oh . . . that would be 15 uuf condensers
    Well actually, I was looking on the net for some surface mount Leyden Jars, but I don't think Pieter van Musschenbroek came out with an SMD version...
  5. - 22nd April 2007, 07:41 #5
    Archangel's Avatar
    Archangel
    Archangel is offline SuperMod
    Join Date
    Aug 2006
    Location
    Look, behind you.
    Posts
    2,818

    Did you find this post helpful? Yes | No

    Default Beaten to the punch

    Quote Originally Posted by Melanie View Post
    Well actually, I was looking on the net for some surface mount Leyden Jars, but I don't think Pieter van Musschenbroek came out with an SMD version...
    He He He, Leydan jars! I almost went there too. Just keep tapping on that coherner and those radio waves will get detected, and I'll adjust the spark gap . . . Hey can you spare an extra cat whisker?
    If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
    .
    Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
    .
    There simply is no "Happy Spam" If you do it you will disappear from this forum.
  6. - 6th June 2007, 10:13 #6
    Acetronics2's Avatar
    Acetronics2
    Acetronics2 is offline Fanatical Contributor
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,653

    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by Melanie View Post
    Well actually, I was looking on the net for some surface mount Leyden Jars, but I don't think Pieter van Musschenbroek came out with an SMD version...
    Hi, Mel

    a nice "through hole" version ... like the one I played with, when child ...

    http://villa-vacances.chez.tiscali.f...urst/index.htm

    Regards

    Alain
    ************************************************** ***********************
    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 " !!!
    *****************************************
  7. - 6th June 2007, 15:45 #7
    mister_e's Avatar
    mister_e
    mister_e is offline Contributor
    Join Date
    Sep 2004
    Location
    montreal, canada
    Posts
    6,898

    Did you find this post helpful? Yes | No

    Default

    mmm, it looks more surface mount to me
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
« Previous Thread | Next Thread »

Similar Threads

  1. 16F877A with 20MHz XTAL not working?
    By ustredna in forum mel PIC BASIC Pro
    Replies: 12
    Last Post: - 19th August 2011, 15:04
  2. Change On Interrupt, PIC16F884
    By elec_mech in forum mel PIC BASIC Pro
    Replies: 17
    Last Post: - 14th November 2008, 17:25
  3. Clock connection to DS1802 from 16F877A
    By coyotegd in forum mel PIC BASIC Pro
    Replies: 7
    Last Post: - 3rd January 2006, 18:52

Members who have read this thread : 0

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

Bookmarks

Posting Permissions

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

Forum Rules