Unplugging serial screws up 12F675

Closed Thread
Results 1 to 5 of 5

Hybrid View

  1. - 1st July 2010, 01:08 #1
    mackrackit's Avatar
    mackrackit
    mackrackit is offline SuperMod
    Join Date
    Nov 2003
    Location
    Wellton, U.S.A.
    Posts
    5,924

    Did you find this post helpful? Yes | No

    Default

    Max 233 does not need caps.
    More than 8 pins though.
    http://datasheets.maxim-ic.com/en/ds/MAX220-MAX249.pdf
    Dave
    Always wear safety glasses while programming.
  2. - 1st July 2010, 08:55 #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

    Default Idle state

    Hi anode505,
    Be sure your serial input port idles in the correct state, USART confers data TRUE so it idles high via the pull up resistor YOU supply whereas INVERTED idles low through the Pull Down resistor you supply.
    HTH
    JS
    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.
« Previous Thread | Next Thread »

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