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WinEC 7 AM35x lcd driver rotation problem RRS feed

  • Question

  • Hello,

    I'm using the Adeneo BSP for TI AM35x. The LCD driver supports screen rotation via setting [HKEY_LOCAL_MACHINE\System\GDI\Drivers] "Angle" to 1 for 90°.

    It works, but the screen is flickering and I get the debug message:

    DSS pipeline underflow error.Intrstatus:40

    In the *.reg file I found the following note: Rotation should not be used with the flat frame buffer, memory/bus bandwidth may be exceeded by display scanning requirements causing display to flicker and/or lock up.

    What means flat frame buffer?

    Does anybody have experience with rotate AM35x screen?

    Best regards,

    Andreas

    Thursday, November 8, 2012 12:33 PM

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