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cb.7
Associate III
February 6, 2025
Question

Rotate screen 180 degrees

  • February 6, 2025
  • 2 replies
  • 921 views

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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2 replies

mƎALLEm
ST Technical Moderator
February 6, 2025
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cb.7
cb.7Author
Associate III
February 6, 2025

I had already seen these old posts but I was wondering if it was possible to access the HX8247-A controller registers via RGB interface. Unfortunately I do not have access to the controller SPI pins....