About TouchGFX frame buffer problem

[TomBrown]

Hello, I'm using TouchGFX on an STM32L452RET6 with an SPI screen. The screen has integrated GRAM, so I selected the partial buffer option in STM32CubeMX. STM32CubeMX generated the partial buffer code as expected, but it also generated code for a full frame buffer, which exceeds the MCU's RAM. I need to comment out this code to reduce RAM usage. How can I prevent STM32CubeMX from generating the full frame buffer code?

STM32CubeMX version: 6.15.0

X-Cube -TouchGFX package and TouchGFX Designer version: 4.25.0

STM32L4 Cube package version: 1.81.1

[Ghofrane GSOURI]

Hello @TomBrown 

I'm currently checking this. I will get back to you asap.

THX

Ghofrane

[Ghofrane GSOURI]

Hello @TomBrown 

Thank you for your valuable contribution.

The issue has been escalated to the appropriate team under internal ticket number 221339 for further investigation and resolution.

I will keep you updated as soon as new information becomes available.

THX

Ghofrane

[Ghofrane GSOURI]

Hello @TomBrown 

I am sharing with your our expert feedback : 

"In the documentation LINK  we  explain that framebuffer can be placed in external memory. If we grey out the double framebuffer strategy, users won't be able to allocate 2 framebuffers in external memory, even if it has the space for it"

THX

Ghofrane