STM32 Hardfault Error when calling fillBuffer under TouchGFX.

[AEng7]

Hey, I am running into issues with a custom PCB based on STM32H743IIT6.

Using IS42S32400J-6TLI as SDRAM,  with an LCD screen. Using TouchGFX and DMA2D deactivated.

A hard fault is encountered after entering Model:Tick()

Hard Fault Error Detected at:

Debug stack view:

LTDC:

SDRAM - only 16 data bits used:

TouchGFX:

MCU:

Any suggestions what could be causing this Hard Fault error?

[AEng7]

Seems to go to 

Then BusFault Handler at :

[AEng7]

Applying new MCU settings:

I still get the BusFault_Handler error

[AEng7 · Accepted solution]

This was solved by setting the SDRAM, LTDC, and unlocking the MCU regions appropriately