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Rotate screen 180 degrees

cb.7
Associate III

‎2025-02-06 02:21 AM

I would like to rotate my screen 180 degrees, I know that Touchgfx does not support this option but it is possible to do so by modifying the internal registers of the display controller.
In my case the display has a resolution of 480x272 and the controller is an HX8247-A and I only have the RGB interface available, I do not have access to the pins for screen rotation but I saw that I have to set the UD and LR bits of the 'Driver Data Control' register to a low level.
Do you think it is possible to modify the internal registers via the LTDC peripheral of the microcontroller (STM32H7)?
Thanks

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SofLit
ST Employee

‎2025-02-06 03:29 AM - edited ‎2025-02-06 03:29 AM

Hello,

Check if these threads can help you:

https://community.st.com/t5/stm32-mcus-touchgfx-and-gui/touchgfx-screen-rotation-180-degrees/td-p/313897

https://community.st.com/t5/stm32-mcus-touchgfx-and-gui/i-want-to-rotate-screen-90-degree-in-touchgfx/td-p/97787

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