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Altera_Forum
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20 years ago

AN371 Automotive Graphics System Application Note

as title..it's Altera reference design

when I fade in the picture,there is some green mask to cover the picture..

is anyone have use this reference design !?

how can I cancel this reset background(change to black)?

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    Yes i'ts realy is.

    The problem in LAncelot board, not in project.

    You can solve it in 2 ways

    1. Just use TFT monitor http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/smile.gif )

    2. Look at the schematic of Lancelot board - need to set or clear some input at video DAC

    (i don&#39;t know exactly what need to fix in Lancelot because i make my own Lancelot-

    like board where i do correct connection to videodac)

    Be sure - i check this to many times - so you don&#39;t need to change vga timings !!

    The problem is only videodac using in lancelot board.

    --- Quote Start ---

    originally posted by suway1219@Apr 8 2006, 01:17 AM

    as title..it&#39;s altera reference design

    when i fade in the picture,there is some green mask to cover the picture..

    is anyone have use this reference design !?

    how can i cancel this reset background(change to black)?

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=14141)

    --- quote end ---

    --- Quote End ---

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor

    --- Quote Start ---

    originally posted by alexs@Apr 9 2006, 12:20 PM

    yes i&#39;ts realy is.

    the problem in lancelot board, not in project.

    you can solve it in 2 ways

    1. just use tft monitor http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/smile.gif )

    2. look at the schematic of lancelot board - need to set or clear some input at video dac

    (i don&#39;t know exactly what need to fix in lancelot because i make my own lancelot-

    like board where i do correct connection to videodac)

    be sure - i check this to many times - so you don&#39;t need to change vga timings !!

    the problem is only videodac using in lancelot board.

    --- quote start ---

    originally posted by suway1219@apr 8 2006, 01:17 am

    as title..it&#39;s Altera reference design

    when I fade in the picture,there is some green mask to cover the picture..

    is anyone have use this reference design !?

    how can I cancel this reset background(change to black)?

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=14141)

    --- Quote End ---

    [/b]

    --- Quote End ---

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=14174)</div>

    [/b]

    --- Quote End ---

    Thanks a lot.

    I have solved this problem.