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AVR analysis

Discussion in 'General Electronics' started by Zielony Lew, Jan 15, 2005.

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  1. Zielony Lew

    Zielony Lew Guest

    Hello,

    I've got a problem with program analysis. I have a HEX file that is used to
    program an ATMEL chip AT90S2313.
    I've used to AVR Studio to disassemble the HEX file to assembler, but it's
    still to big to analyze for me..
    Is there here somebody that can help me with this assignment?
    I have to write a short (?) description of what the program is doing or to
    draw a block schema (with loops or sth). But i think the second is undoable
    without going through the whole code line by line and memory maps.. and I
    can't do it :(
    I know that the whole thing is being used in an accumulator charger...
    I was also given a circuit connections schema..

    The source of ASM can be viewed herE: http://warden.anim.pl/atmel/ASM.txt
    and the circuit: http://warden.anim.pl/atmel/schg.jpg
    If the source HEX is needed then it's here:
    http://warden.anim.pl/atmel/schg.hex

    Please help.. i have to write it till wednesday :(


    Thanks in advance for all your help!
     
  2. Robert Baer

    Robert Baer Guest

    You need an inverse assembler to convert the hex to assembly code.
    Obviously, ther will be no comments to help.
     
  3. Zielony Lew

    Zielony Lew Guest

    You need an inverse assembler to convert the hex to assembly code.
    obviously why ?
     
  4. jim w

    jim w Guest

    He's already disassembled it, per his orginal posting.

    The reason there's be know comments, is that the comments from the
    original source are 'stipped' (if you'll pardon the phrase) when the hex
    file was created.

    - jim
     
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