This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

• FRDM-MCXA156 board

• USB-C cable

• Personal Computer

Board settings

MCUBoot layout is the following:

MCUBoot region 0x0 - 0x08000 : 32kB Primary slot 0x8000 - 0x84000 : 496kB (0x7c000 bytes) Secondary slot 0x84000 - 0x100000 : 496kB (0x7c000 bytes)

• 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 0x7c000 –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.