strange question?


Closed Thread
Results 1 to 8 of 8
  1. #1

    Default strange question?

    think i know the answer
    does anyone have a way to backward program a pic
    ie convert hex to asm to pb
    never hurts to ask

    have a nice sunday

  2. #2
    Join Date
    Oct 2003
    Location
    holland
    Posts
    251


    Did you find this post helpful? Yes | No

    Default

    If the program was written with the use of a compiler like PBP or C then it is impossible te get the source back. And when the fuses are set for security then you can not read the program of the chip.

  3. #3
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,615


    Did you find this post helpful? Yes | No

    Angry Very bad guy ... who wants to do some hacking !!!

    Most of time, loading the .Hex in the MPLAB program window permits to have a very good idea of the program ... and also to modify it somewhat !!!

    BUT you must read ( and understand ... LOL ) assembler !!!

    No hope for reading it into "High level" languages ... Thanks God !!!

    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 " !!!
    *****************************************

  4. #4


    Did you find this post helpful? Yes | No

    Default not really

    just have way to many ver of programs, not sure which one is in the chip

    got enough problems with following my own with out trying to fiqure some-else

    like. i said have many trys at programs not entirely sure which one i am using

    thanks' beside like the other person said it real easy to lock you hex files in the pic

    have not done this on my own

  5. #5
    Join Date
    Aug 2006
    Location
    Look, behind you.
    Posts
    2,818


    Did you find this post helpful? Yes | No

    Default

    Hi Jack,
    If it's your own code, then use your programmer to read the hex file and compare to the hex files for each of your versions.
    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.

  6. #6


    Did you find this post helpful? Yes | No

    Default Thanks

    Worth A Try

  7. #7
    Join Date
    Jan 2007
    Posts
    37


    Did you find this post helpful? Yes | No

    Default

    Quote Originally Posted by mat janssen View Post
    If the program was written with the use of a compiler like PBP or C then it is impossible te get the source back. And when the fuses are set for security then you can not read the program of the chip.
    There is one very expensive way how to read protected data - Laser cutter + electronic microscope

  8. #8
    Join Date
    May 2004
    Location
    NW France
    Posts
    3,615


    Did you find this post helpful? Yes | No

    Talking

    Hi,Therian

    For the C series ... there was a very simple method just changing the config settings !!!

    never tried with F series ... WHY ???

    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 " !!!
    *****************************************

Similar Threads

  1. AN Question for "word" variable read The serial port
    By redfoen in forum mel PIC BASIC Pro
    Replies: 1
    Last Post: - 14th December 2007, 17:39
  2. FREQOUT - PWM question
    By Etcho in forum mel PIC BASIC Pro
    Replies: 7
    Last Post: - 25th February 2007, 23:51
  3. Question for a math guru
    By Christopher4187 in forum General
    Replies: 3
    Last Post: - 22nd November 2006, 09:45
  4. strange adc question
    By maus in forum mel PIC BASIC Pro
    Replies: 1
    Last Post: - 4th November 2006, 10:57
  5. Please answer my first question
    By John_001 in forum Off Topic
    Replies: 1
    Last Post: - 15th September 2006, 06:49

Members who have read this thread : 1

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