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Structure of SPS 'UTILITY' file

chicking
+chicking
in GM Discussion Forum

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  • Contributor
#1

Hello.

I am studying utility file.

I have a question. What do the data after 'programming step' mean?

Maybe MCU's Boot area data ?? or eeprom ????,...

Does anyone know exactly 'what those data meaning' after programming steps???????

UTIL.jpg

thanks in advance.!!

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    • Robi_X
      Robi_X

      For what exactly i dont know but its has something todo with initialization/prepare for programm mode or so. If i skip it it fails to upload the cal data.

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    • GM Car Hacking Expert
    • Contributor
    #2

    For what exactly i dont know but its has something todo with initialization/prepare for programm mode or so.

    If i skip it it fails to upload the cal data.

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    #3
    30 minutes ago, Robi_X said:

    정확히 무엇인지는 모르겠지만 프로그램 모드에 대한 초기화/준비와 관련이 있는 것 같습니다.

    건너뛰면 캘 데이터 업로드에 실패합니다.

    I was wondering if it would be possible to modify the utility file to program it on a different generation car, but it seems like it won't be possible until this secret is solved. Just what address it goes into memory, as it seems to be flash area programming data.

    Anyway, thanks for your opinion~

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