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DISPLAYING IMAGES FROM SD CARD

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  • DISPLAYING IMAGES FROM SD CARD

    Hi EveryBody !

    I would like to display 2 images by using the command @49h "Display image icon from card (RAW)".
    First of all I used the tool RMPET to set up two partitions : FAT and RAW.
    First question : We're told in the first serial sample to store at offset 3. Why offset 3 ? When I make it it runs but when I store at offset 0 it doesn't.
    Second question : I tried to display the second image. The first image is 520 sectors long. So I stored the second one at offset 600 (dec). I cannot display it when using the command @49h with offset 600 (00 02 58 hex).
    Could you help please ?

    Many thanks !

  • #2


    Need some more information.

    Where did you see this offset 3?

    What are the exact commands you are sending and the responses? (FAT Controller log?)

    What displays for the second case?
    Mark

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    • #3


      In the PICASO-SGC-COMMANDS-SIS-rev11 pdf file page 60, you have the first serial sample at the bottom of the page.

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      • #4


        Yep, so 3 was used in that example, no problems, you can use any value you want to.

        You still need to answer a few more questions before I can help you
        Mark

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