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Porting Android Froyo to AM1808 EVM LCD Problem

Emre S. ASLAN
Prodigy 30 points
Other Parts Discussed in Thread: AM1808, OMAPL138

Hi,

I am trying to port Android Froyo to AM1808 EVM. Actually I have already ported following instructions from http://processors.wiki.ti.com/index.php/TI-AM1808-Android-FroYo-DevKit_UserGuide . But there is something wrong with lcd touchscreen. My screen seems just like refreshing all the time, just like flickering and just like freezing while touching screen.

Which steps should I follow to fix it ? Can someone help me about lcd screen ?

Thanks in advance

  • 0
    Prodigy 30 points

    Additionally I tested touchscreen and mouse at the same time and when I clicked an item on touchscreen, mouse pointer was not seem there. How I can fix it ? And where can I find build image Android FroYo for AM1808 ? I have found omapl138 from TI ftp server but it has some errors for example it doesn't have data/property file.

    I also tested touchscreen with Pointer Location app which is in Dev Tools. Actually touchscreen works perfect but screen refreshs itself many times and it doesn't seem well. That refreshed area is only above gray bar which shows battary, wifi etc.

  • 0 in reply to Emre S. ASLAN
    Prodigy 30 points

    Hi,

    I gave up porting FroYo and started for Gingerbread. Now I'm working on porting Android Gingerbread 2.3.4 to custom board that has 128mb ram. I achieved to port Android but still some bugs which were in FroYo in screen display.

    I'm using custom board. My board is close to am1808evm it has am1808 inside. I'm trying to port Android Gingerbread 2.3.4 with 2.6.37 kernel. Porting based on rowboat repository. In the past when I used FroYo from rowboat that problem was still there.. Now I'm using Gingerbread but nothing changed about screen display.

    I recorded video to show how it seems. Here http://www.youtube.com/watch?v=b9UoPxRRyXo I uploaded video.

    Problem Details

    1. If I click mouse and if that causes changes on screen, problem occurs..
    2. If I do not click mouse and just moving around than there is no problem in applications but problem continues on Android home screen and Android dependent screens.
    3. Problem is being seen always Android dependent side, if I run an application there is no problem

    Thanks in advance for any suggestion