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floppes / RTD266xFlash

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Support for Waveshare 4.3" #10

Closed thomasgoedertier closed 3 years ago

thomasgoedertier commented 3 years ago

Hello,

First of all I want to thank you for your excellent tool and very clear instructions! Thanks to your project I was able to disable the 'HDMI popup' on a Waveshare 4.3" display. This display also uses the RTD2660 chip. I have attached the original.bin read from this display.

I found the 'HDMI popup' function at 0x13FE00. By changing the value from 0xE4 to 0x22 I was able to disable the popup.

I also found the 'HDMI popup text' (0x19 0x14 0x1E 0x1F 0x1A) at 0x1233F. However I did not try to change this as I did not need it. The default text shown in the HDMI popup is "HDMI-WaveShare" Neither did I try changing the background or the logo...

Feel free to include my findings in your project.

Kind regards, Thomas

waveshare4_3.zip

floppes commented 3 years ago

Hi Thomas,

thanks a lot for your files. I also found some similarities to the 3.5" firmware variants, but not the palette and logo location. They are needed in order to be included in the GUI tool.

thomasgoedertier commented 3 years ago

Hi floppes,

Ok no problem. I should have mentioned that this display probably doesn't have a background color or logo function. When it boots there is only a black screen and then the 'HDMI-popup' is shown while the raspberry pi boot screen becomes active.

You can close this issue or leave it open.. whatever suits you best.

I just wanted to document my solution.. maybe it can help someone with the same brand of display that stumbles upon your repository.

Thanks again for your work! Kind regards