Hardware requirements

• FRDM-MCXA156 board

• USB-C cable

• Personal Computer

Board settings

MCUBoot layout

Region	From	To	Size
MCUboot code	0x00000000	0x0000FFFF	64kB
Primary slot	0x00010000	0x0007FFFF	448kB
Secondary slot	0x00080000	0x000EFFFF	448kB

• MCUBoot header size is set to 512 bytes

• Signing algorithm is ECDSA-P256

• Write alignment is 16 bytes

• Uses image swapping by SWAP_USING_MOVE

Image signing example

imgtool sign   --key sign-ecdsa-p256-priv.pem
               --align 16
               --version 1.1
               --slot-size 0x70000
               --header-size 0x200
               --pad-header
               --max-sectors 64
               ota_mcuboot_basic.bin
               ota_mcuboot_basic.SIGNED.bin

If you experience problems with flash erase, check correct configuration of ACL_SEC_x fields in CMPA region.