LCD (1024x768) on STM32H7MCU running ThreadX/GUIX flickers when switching window / pages.

[AKw.1]

Hello, we are using single frame buffer at the moment and loading binary resource file from flash into 32-bit SDRAM. Previously we set out LCD Clock to 71Mhz but due to severe flicker and jitter on window switching, we reduced the clock to 40Mhz and got rid of the jitter. However the new window still flickers. Does anyone have recommendation to eliminate this flicker effect?

[MM..1]

Use RGB565 and double buffer , too start buffers in different SDRAM banks.

[AKw.1]

Can you refer me to an example using double buffer?