Discrepancy in colours between TouchGFX and the display

[Mathan Raja]

Hi,

I am using the STM32H563 with an ST7735S display and encountering a colour difference between TouchGFX and the display. How can this issue be resolved?

Thanks

Mathan

[GaetanGodart]

Hello @Mathan Raja ,

Most likely the drivers of your screen don't use the same format as TouchGFX.
For instance, TouchGFX uses ARGB but your display's driver might be in ABGR.

Someone else had a similar issue with an STT7735, here is how they solved it : https://community.st.com/t5/stm32-mcus-touchgfx-and-gui/touchgfx-wrong-color-issue/td-p/195514

Please tell me if that helped you.

Regards,

[Mathan Raja]

Hi Gaetan Godart,

I display images in a loop, and pressing an external button changes the image (a small application).

Adjusting the data size resolved the colour issue, and now the correct colours appear.

However, the application is not functioning as expected. The callback and image-changing functions execute during debugging, but the issue persists, and the display appears frozen.

Thanks 

Mathan