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  • I have solved the issue. It is due to my MPU setting is incorrect resulted cache unable to run properly.

  • Hello, I'm using a custom board with stm32h750xb microcontroller, a 800x480 tft display with the TM043NDH02 controller, and an external sram chip MT48LC16M16A2P-6A. Without enable cache (using I-Cache & D-Cache) - I can confirm the GUI_Init able to display the image correctly. - there is some issue with performance which is a very slow during invalidation take place. So when I enable cache, I get infinite loop stuck in 'LTDC_IRQHandler' where this interrupt function called from 'startup_stm32h75…