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Image Command Issue 'I'

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  • Image Command Issue 'I'

    I am trying to use the 'display image' command 'I' in the default QVGA mode, when the image is wider than 289 pixels Picaso gets confused, clears the background and does not respond to commands.

    When I use the 'version' 'V' command (0x56, 0x01), I receive a 0x15 NAK - I'm unable to determine the version... I purchased this board last week but unsure how old it is.

    Is this module stable?

    Any help would be greatly appreciated.

  • #2


    Command:
    'I', 0, 0, 0, 0, 1, 33, 0, 210, 8

    'I' = 0x49
    x = 0
    y = 0
    xW = 289
    yH = 210
    color = 8
    data.... (289*210) bytes of data

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    • #3


      I'm really disappointed with 4D, there are a number of problems with this module and as patient as most are there is little to no response. I posted this question months ago.

      Hello?

      Comment


      • #4


        Can you confirm this is the module you've purchased?
        http://www.4dsystems.com.au/prodimg/p1190993043.jpg
        http://www.4dsystems.com.au/prod.php?id=15
        Atilla

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        • #5


          Yes, it is a uVGA board. Even the Rev command returns a NAK... has this been fixed?

          Comment


          • #6


            I also had high hopes for the uVGA but it seems it is a total waste of money. Too many issues, too little help from the makers. I had a colleague who bought many of these modules but were sorely dissappointed because most of the things they were hoping for are "not implemented yet" (as of 2007?!?!).

            To the point - I am also unable to probe device version information. 0x56 0x01 returns NAK. When I use the Image command to send any images they get distorted. The image displays in its entirety but it is somehow "warped".

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