16f877 port configuration & interrupts

Results 1 to 3 of 3

Threaded View

  1. - 15th April 2005, 09:20 #1
    Rob Martin's Avatar
    Rob Martin
    Rob Martin is offline Junior Member
    Join Date
    Mar 2004
    Posts
    44

    Default 16f877 & interrupts

    For those who already ready this posting I had a duff pic!
    But I still have an Interrupt question

    My problem is I want to run a piece of code everytime RA1 < RA4 change status. Am I right in understanding that I can assign these all to one interrupt?
    Also when the interrupt happens will it stop it's current instruction? e.g. if I'm haveway through reading an rs232 input will it breakout or wait till it completed it's read?

    Is there a definitive idiots guide to interrupts and making sense of the datasheets for those of us who are learning?


    Rob
    Last edited by Rob Martin; - 15th April 2005 at 12:25.
« Previous Thread | Next Thread »

Similar Threads

  1. help: TMR0 interrupts disabling PORTAchange interrupts???
    By xnihilo in forum mel PIC BASIC Pro
    Replies: 4
    Last Post: - 19th August 2008, 15:10
  2. Microcontroller with 2 way paging application problem
    By oneohthree in forum mel PIC BASIC Pro
    Replies: 30
    Last Post: - 20th April 2007, 17:27
  3. port/ pin explanation 16F877
    By emmett brown in forum mel PIC BASIC Pro
    Replies: 2
    Last Post: - 27th August 2006, 01:07
  4. Interrupts and Disable 16f877
    By Rob Martin in forum mel PIC BASIC Pro
    Replies: 5
    Last Post: - 18th April 2005, 21:08
  5. Interrupts using a 16F877
    By Niall in forum General
    Replies: 1
    Last Post: - 6th August 2003, 01:33

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