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Associate III
August 19, 2026
Solved

Touchgfx designer 4.26 can not choose L8 image type

  • August 19, 2026
  • 1 reply
  • 37 views

My MCU is H7R7, the image type in touchgfx designer only have RGB565 and ARGB8888, no L8 type.

Framework features can not be changed.

What is wrong with that?

Best answer by Osman SOYKURT

Hello ​@amb ,

This is expected. L8 images with an RGB565 palette are not supported by DMA2D. Since STM32H7R7 includes DMA2D, TouchGFX Designer does not offer L8 for this target.

 

1 reply

Osman SOYKURT
Osman SOYKURTBest answer
ST Technical Moderator
September 1, 2026

Hello ​@amb ,

This is expected. L8 images with an RGB565 palette are not supported by DMA2D. Since STM32H7R7 includes DMA2D, TouchGFX Designer does not offer L8 for this target.

 

ST Software Developer | TouchGFX