bitmaps incorrectly rendered when flash is used >30% (using online demo STM32G071 NUCLEO)

[AAnis.1]

Hello ,

Im currently exploring Touch gfx capabilities on low cost hardware (STM32G071  + SPI LCD shield) , and i comme across a bug .

steps to reproduce :

• Start a fresh new project on Touch GFX using online demo , choose STM32G071 demo
• Load a few additional image to project (a series of 40 png issued from a splitted .gif file total size : 150kb
• Connect board
• generate code and flash target

Results : some images of GUI gets missed up ( black lines ) like : navigation arrow , touch gfx logo and some texts disappear .

I suppose this is due to low ram available , can you please explain ow touchgfx is allocating cache for bitmaps in demo project? since the board has a NOR non mapped flash chip for assets storage does it mean that all assets are being cached on startup ? if yes why touchgfx still call for SPI data reader each time i switch screen ?

Sorry for long post but i'm quit confused : / , many thanks in advance

Ps : please find attached te additional images i'm using

Ps2: The additional images are just loaded into project but never used or referenced , so i find it quit awkward that they are being loaded into cache since there is no call for them

[AAnis.1]

Hello Nicolas and thanks for joining in ,

I just tried out with this updated external flash loader and it's working like a charm :) , hopefully the online demo application gets updated and i think this post might be helpful for others ^^.

I'll mark this post as answered .

Best regards

Aniss