none
LCD text is not displaying correctly for WINCE7 with AM335x? RRS feed

  • Question

  • Dear friends,

    Greetings!!

    As, I am using Am335x BSP with WInce7 and I am testing it for 4.3 inch LCD touch screen. The same LCD is working fine on LINUX BSP. But with WINCE7 it not working properly.

    When I say not working properly, it means the font or text is not displaying properly on the screen.

    Here I am sharing some captured shots so that it is clear that what is the issue with text...

    SC1

    AS, the desktop icns text is very much fine.

    Thursday, June 25, 2015 9:36 AM

All replies

  • SC2

    Here in my device, some icons text is not visible correctly...

    Thursday, June 25, 2015 9:37 AM
  • Looks like font smoothing is missing. can you add these registry settings in platform.reg and try again.

      ;For Font Smoothing and cleartype
    [HKEY_LOCAL_MACHINE\SYSTEM\GDI\Cleartype]
    "Default"=dword:00000001


    [HKEY_LOCAL_MACHINE\System\GDI\Fontsmoothing]
    [HKEY_LOCAL_MACHINE\System\GDI\ClearTypeSettings]
    “OffOnRotation”=dword:00000000

    [HKEY_LOCAL_MACHINE\System\GDI]
        "ForceGRAY16"=dword:1
        "ExpensiveAntialias"=dword:1
    ;end Font Smoothing and cleartype


    Please mark as answer, if it is correct.
    Please vote,if it is helpful post.
    Vinoth.R

    http://vinoth-vinothblog.blogspot.com
    http://www.e-consystems.com/windowsce.asp

    Thursday, June 25, 2015 1:39 PM
  • Dear Friends,

    Greetings!!!

    Hello Vinoth,

    After adding the above entries, I got no success.

    As, I would like to share something imp that the same LCD is working fine on LINUX platform and 7 inch LCD is working fine with the same WINCE source code where I am trying to test 4.3 INCH LCD

    Friday, June 26, 2015 3:52 AM
  • Same WinCE code can't work for both the LCD's. You normally change LCD parameters. 

    I think you need to check Clock, Hsync and Vsync parameters of 4.3" LCD.


    Seeth

    Wednesday, July 1, 2015 9:05 AM
  • Dear Friends,

    Greetings!!!

    Thanks Seeth.

    Obviously, it should be added. and what I remember I added for 4.3 and same parameters are added in the linux source code.

    Wednesday, July 1, 2015 9:39 AM
  • If the workspace you are using are same then only those parameters would matter in it. 

    I think you can double check the parameters of Linux and WinCE. Also in Linux test for long time if the same issue exists there. 


    Seeth

    Wednesday, July 1, 2015 9:48 AM
  • Hi,

    We have already checked all the things properly. and the same wince source is working fine with another board for 4.3 inch LCD selection.

    Wednesday, July 1, 2015 9:53 AM
  • Ok.. Good news!

    Then either board/LCD has issue.

    WinCE after immediate booting issue is occurring or after some time? 

    In Linux how you tested?


    Seeth

    Wednesday, July 1, 2015 10:06 AM
  • After immediate booting. Even that on calibration screen some text is written and its also not readable properly.


    Wednesday, July 1, 2015 10:18 AM
  • How you tested in Linux

    Seeth

    Wednesday, July 1, 2015 10:39 AM
  • I tested in LINUX with after running all GUI application and I confirmed that the text/font was displaying properly in LINUX.
    Wednesday, July 1, 2015 11:07 AM
  • Partap

    I agree with you, this is not a simple parameter problem. It is very unusual, and therefore it will be tricky to solve. 

    The last tome I saw something similar, it was an address map problem.


    Bruce Eitman (eMVP) Senior Engineer Bruce.Eitman AT Eurotech DOT com My BLOG http://geekswithblogs.net/bruceeitman Eurotech Inc. www.Eurotech.com

    Wednesday, July 1, 2015 11:46 PM
    Moderator
  • Dear Developers,

    Greetings!!

    Bruce, could you please elaborate the address map issue so that we can have an idea to solve the issue.

    Thursday, July 2, 2015 4:30 AM
  • Yes, check your address map to see if it is correct.

    One test would be to move the display buffer to another location to see if the problem still exists.


    Bruce Eitman (eMVP) Senior Engineer Bruce.Eitman AT Eurotech DOT com My BLOG http://geekswithblogs.net/bruceeitman Eurotech Inc. www.Eurotech.com

    Thursday, July 2, 2015 4:27 PM
    Moderator
  • Try to disable the Composite windows in catalog, it maybe can solve your problem.

    Zebra @ TECHWARE MVP @ Windows Embedded CE

    Saturday, July 4, 2015 2:21 PM