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RTOS/TDA3XEVM: control of RGB gain , contrast of display from TDA3xx

Part Number: TDA3XEVM

Tool/software: TI-RTOS

Hi Everyone ,

I like to know is there any possible ways to control the RGB gain, brightness / contrast of the display from the TDA3x . I like to know whether these parameters can be controlled through software .

Thanks & Regards ,

V.B.Surendar

  • In reply to Surendar V B:

    ok, did you manually checked in the register that CPR is really enabled and the coefficients that you are providing are actually applied?

    Rgds,
    Brijesh
  • In reply to Brijesh Jadav:

    yes , I used row hardware read and write functions [HW_RD_REG32, HW_WR_REG32] to confirm whether the CPR is enabled or not .
  • In reply to Surendar V B:

    Hi Brijesh , Is there any update on this ?
  • In reply to Surendar V B:

    hi Surendar,


    Strange, can you share DSS register dump?

    Rgds,
    Brijesh
  • In reply to Brijesh Jadav:

    Hi Brijesh ,

    We found out the issue with the value of coefficients matrix . We were checking only the firt row values . Now when we altered the other Coefficient value the display output is getting changed .

    Now we could control the output color of the video.
  • In reply to Surendar V B:

    Great, good to hear it is working now.

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