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Associate III
Aug 19, 2026 2:51 AM UTC
Solved

Touchgfx designer 4.26 can not choose L8 image type

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?

Osman SOYKURT
Osman SOYKURTBest answer
ST Technical Moderator
Sep 1, 2026 2:25 PM UTC

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

1 reply

Osman SOYKURT
Osman SOYKURTBest answer
ST Technical Moderator
Sep 1, 2026 2:25 PM UTC

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