stm32h747: XIP from external SDRAM

[VLesc.1]

Is it possible to run the firmware from an external SDRAM?

There is an example for h750, but it does not work with h747.

I go to the address I need, but I get a hardfault into bootloader for first command into external sdram

[Vangelis Fortounas]

Hello

External SDRAM is execute disabled by default.

The MPU can override the default memory access.

Need to configure SDRAM region in MPU with XN bit at RASR register, disabled.