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  1. #1
    Join Date
    Dec 2009
    Posts
    3

    Angry Configuration bits in a HEX file gone missing?

    Hi Everybody,

    I'm currently working on a bootloader application - the idea is that the master pic will program all the slave pics connected to it over eusart. For that I need to know the exact structure of a hex file, so I can stream it correctly and setup table writes in pic's flash.

    As far as datasheet is concerned the config bytes has the addressess 300000h - 3FFFFFh.

    As far as I know, the configuration bits should be included in the hex file. I can't seem to find them though. I tried the method of setting them differently and recompile the program, but the hex files are exactly the same! No matter what configuration bits I change. Is it possible that this bits are stored somewhere else with the new MPLAB?

    I working on pic18f4525 with picbasic pro and mplab 8.43. I include a hex file of my program (a tiny bootloader compiled actually).

    Thanks in advance if you can find those for me. Cheers!

    greg


    :020000040000FA
    :04000000A0EF5FF01E
    :08BF3800000000000000000001
    :10BF4000240EAC6E190EAF6E900EAB6E4B0EAD6E36
    :10BF500047D8C10854E14E0EAD6E4B0EAD6E006A6F
    :10BF60003FD80000F86E076E3BD8F76EA96E38D840
    :10BF7000F66EA86E35D8016E012A00EE09F0F56E56
    :10BF80002FD8EC6E012EFBD700661FD007AC03D074
    :10BF9000040E1ED818D007AE04D00C00C40E18D85A
    :10BFA00012D0940E15D80A00080E056E00EE0AF0A5
    :10BFB000080E066EEE50F56E0F00062EFBD7840EAF
    :10BFC00007D8052EF5D7A694C8D74E0EAD6EC7D7A5
    :10BFD000A66E550EA76EAA0EA76EA68200001200CE
    :10BFE000030E026E036A046A9EAA03D0AE500026B6
    :10BFF0001200042EF9D7032EF6D7022EF3D7AB9EEC
    :02C000009BD7CC
    :020000040030CA
    :03000100011E0ECF
    :020005008181F7
    :060008000FC00FE00F40E5
    :00000001FF

  2. #2
    Join Date
    Jul 2003
    Location
    Colorado Springs
    Posts
    4,959

    Default

    Here they are ...
    Code:
    :020000040000FA
    :04000000A0EF5FF01E
    :08BF3800000000000000000001
    :10BF4000240EAC6E190EAF6E900EAB6E4B0EAD6E36
    :10BF500047D8C10854E14E0EAD6E4B0EAD6E006A6F
    :10BF60003FD80000F86E076E3BD8F76EA96E38D840
    :10BF7000F66EA86E35D8016E012A00EE09F0F56E56
    :10BF80002FD8EC6E012EFBD700661FD007AC03D074
    :10BF9000040E1ED818D007AE04D00C00C40E18D85A
    :10BFA00012D0940E15D80A00080E056E00EE0AF0A5
    :10BFB000080E066EEE50F56E0F00062EFBD7840EAF
    :10BFC00007D8052EF5D7A694C8D74E0EAD6EC7D7A5
    :10BFD000A66E550EA76EAA0EA76EA68200001200CE
    :10BFE000030E026E036A046A9EAA03D0AE500026B6
    :10BFF0001200042EF9D7032EF6D7022EF3D7AB9EEC
    :02C000009BD7CC
    :020000040030CA          <-- Extended Linear Address Record
    :03000100011E0ECF        <-- CONFIG1H,2L,2H
    :020005008181F7          <-- CONFIG3H,4L
    :060008000FC00FE00F40E5  <-- CONFIG5L - 7H
    :00000001FF
    DT

  3. #3
    Join Date
    Dec 2009
    Posts
    3

    Default

    Hi Darrel,

    Thanks so much! That is great.

    What has happened was I also somehow compiled .asm file as a relocatable code, and this prevented the config bytes from being updated. Thats why I couldn't find them in simple comparison.

    Thanks again and regards,

    greg

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