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Original question:

TDA4VM: TDA4 A72 output DP and DSI

TDA4VM: How to display both DP and DSI via app_tidl

Zi Wang
Intellectual 415 points
Part Number: TDA4VM

Hello,TI

I enabled DSI and eDP separately in vision_apps.

Now I have '#define ENABLE_DSS_DUAL' enabled in app_cfg_mcu2_0.h.

By modifying app_tidl's obj->disp_params.pipeId = 0 or 2 to display eDP and DSI separately.

This can be displayed normally，but it is displayed separately.

How to make app_tidl show both eDP and DSI?

  • 0
    TI__Guru**** 476025 points

    Hi Zi Wang,

    Yes, it is possible, but requires changes in the display controller connectors/tree.. Can you please check appDctrlDualDisplayDefaultInit API in ti-processor-sdk-rtos-j721e-evm-07_01_00_11\vision_apps\utils\dss\src\app_dss_dual_display_defaults.c, to connect output to DSI, instead of DPI? 

    You could check connections required for DSI under APP_DSS_DEFAULT_DISPLAY_TYPE_DSI option in ti-processor-sdk-rtos-j721e-evm-07_01_00_11\vision_apps\utils\dss\src\app_dss_defaults.c.

    Regards,

    Brijesh