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Associate III
Jan 22, 2024 9:14 AM UTC
Solved

GPU2D not available when using L8 Pixel Format

Hi, I am using an STM32U5A9ZJT with LTDC L8 buffer and cannot select GPU2D, is support for L8 being added soon?
Being able to use L8 and vector fonts would be ideal for storage savings.

 

I also noticed that the "hardware" option for vector rendering is available on the STM32U5A9, isn't this a feature of the NeoChromVG of the STM32U5G9?

 

Can I use L8 images in touchgfx when using an RGB565 buffer? I tried this and it works in the emulator but crashes on device.

 

This topic has been closed for replies.
LouisBBest answer
ST Employee
Jul 9, 2025 7:52 AM UTC

L8 format is not supported by GPU2D TouchGFX on NeoChrom/NeoChromVG | TouchGFX Documentation

Louis BOUDOST Software Engineer | TouchGFX

2 replies

PhilipCAuthor
Associate III
Jan 24, 2024 10:07 PM UTC

also seen 4.23.1 is now out, i downloaded and installed it but in cubemx it still says 4.23.0

PhilipC_0-1706135088420.png

 

LouisBBest answer
ST Employee
Jul 9, 2025 7:52 AM UTC
Louis BOUDOST Software Engineer | TouchGFX