What is the main difference Bet. 16f877 vs 16f877A

Closed Thread
Results 1 to 33 of 33

Hybrid View

  1. - 21st February 2006, 11:28 #1
    uludere72's Avatar
    uludere72
    uludere72 is offline Junior Member
    Join Date
    Apr 2005
    Posts
    32

    Did you find this post helpful? Yes | No

    Default

    thanks for your kind response
    !
  2. - 1st May 2006, 10:14 #2
    Joann's Avatar
    Joann
    Joann is offline Junior Member
    Join Date
    Apr 2006
    Posts
    21

    Did you find this post helpful? Yes | No

    Default interested

    I also have the same problem,i have a code compiled for pic16f877
    the data,clock pin is on porta pin,when i program it on pic16f877a i did not work.
    how would i disable the comparator.
  3. - 1st May 2006, 13:06 #3
    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

    Comming from the migration sheet...
    <img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=863&stc=1&d=1146485135 ">
    Attached Images Attached Images  
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
  4. - 2nd May 2006, 10:53 #4
    Joann's Avatar
    Joann
    Joann is offline Junior Member
    Join Date
    Apr 2006
    Posts
    21

    Did you find this post helpful? Yes | No

    Default Thanks all

    The problem is this,i connected as follows to pic16f877a
    porta.0 = clock to 74hc
    porta.1 = clock to 74hc
    porta.2 = clock to 74hc
    porta.3 = input..
    porta.4 = input..
    porta.5 = output..

    portb.0 - 7 = outputs.
    portc.0 - 7 = outputs.

    i have tried to ,cmcon = 7
    adcon1 = 7
    still is not working .
    but the code work on pic16f876.
  5. - 2nd May 2006, 13:55 #5
    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

    Is your programmer support the 16F877a as it can have some programming time difference.

    Also, the A serie are bit much noise sensitive, be sure you place the proper psu filtering cap close to your PIC.
    Steve

    It's not a bug, it's a random feature.
    There's no problem, only learning opportunities.
  6. - 2nd May 2006, 16:38 #6
    Joann's Avatar
    Joann
    Joann is offline Junior Member
    Join Date
    Apr 2006
    Posts
    21

    Did you find this post helpful? Yes | No

    Default Fine.

    i will try to fit in the capacitor,.
    is there any other thing i can do to make it work.?
  7. - 2nd May 2006, 16:41 #7
    Joann's Avatar
    Joann
    Joann is offline Junior Member
    Join Date
    Apr 2006
    Posts
    21

    Did you find this post helpful? Yes | No

    Default yes

    my programmer supports 16f877a, and i buld it my self and i use it with winpic800 software or icprog, it works very fine i have been programming 16f877a and 16f628a with it works fine.
« Previous Thread | Next Thread »

Similar Threads

  1. HSEROUT and Commas, What? Help Me Understand
    By altech6983 in forum mel PIC BASIC Pro
    Replies: 4
    Last Post: - 20th July 2009, 19:12
  2. 16F877 vs. 16F877A
    By DavyJones in forum General
    Replies: 12
    Last Post: - 11th April 2009, 18:22
  3. GOTO main or RETURN - Question
    By studysession in forum mel PIC BASIC Pro
    Replies: 5
    Last Post: - 31st January 2009, 16:13
  4. 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