mcuboot supports the stm32 external octo-flash in XiP #1891
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Prepare the boot/zephyr/flash_map_extended.c to support the stm32 MemoryMapped mode where the application is XiP from a external octo/quad flash memory
This is done by setting the CONFIG_STM32_MEMMAP flag which configures the octo/quad flash stm32 driver in MemoryMapped mode.
The MCUBOOT is required to validate the image which is supposed to be in the external flash memory. With
The mcuboot is built, linked and stored for the stm32 internal flash. The stm32 internal flash must declare the
Image slot 0 is located in the external NOR flash to be executed in XiP.