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Is ADV7533 I2C Control necessary to work in ST B-LCDAD-HDMI1 DSI to HDMI adapter board

Hi,

1) My development environment is as follows.

   HW : STM32f769ni discovery kit (DISCO) + ST + ST B-LCDAD-HDMI1 DSI + 7 INCH 1024*600 HDMI LCD

   SW : STM32CubeIDE + TOUCHGFX + TOUCHGFX DESIGNER

   I needed to replace embedded 4 inch touch LCD  (DSI connector) with 7 INCH 1024*600 HDMI LCD.

   So I used ST B-LCDAD-HDMI1 DSI b'd which uses ADV7533 to convert from DSI to HDMI output.

2) The symptom is as follows.

   But there is no output on the 7 INCH 1024*600 HDMI LCD and "No Signal" message on the display

3) Question

  Do I need to set the corresponding display resolution, aspect ratio, working mode, ... in the ADV7533 using I2C ?

  I only want to know whether it is necessary or not ?

  In case it it necessary, I don't want to know how to initialize those registers because I know that it is hard to know

  even I2C Dev Address. I will try to find another LCDs & Interfaces

  In case it is not necessary, I'll try my best to find the corrent settings in the ST STM32CubeIDE Software.

Thanks for reading,