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CCS/AM3354: LCDC register values in CCS

g.f.
Guru 15520 points

Part Number: AM3354

Tool/software: Code Composer Studio

Hi,

I have a question about AM335x and Windows Embedded Compact7.

The boot mode is SD boot. After boot and WinEC7 are running on my customer's board,
they are connecting the board to CCSv6.

After connecting to CCS, they are trying to check LCD controller register from CCS Register Viewer.
But the value are displayed only the following LCDC registers;
*PID
*CTRL
*LIDD_CTRL
*LIDD_CS0_CONF

All other LCDC registers are displayed as "Error: unable to read".

What is making this issue?
The LCD are looks fine, it's showing the windows display.
So, we guess the LCD controller configuration is done okay.

best regards,
g.f.

  • 0
    TI__Guru**** 393215 points
    Hi,

    WinEC7 is not supported by TI, therefore we have no way to reproduce this. My suggestion is that the Windows LCD driver locks the registers it uses and makes them inaccessible. You can check this by disabling the LCD driver to see if the unreadable registers will become accessible.