Hardware requirements
Mini/micro USB cable
MIMXRT1060-EVKC board
Personal Computer
Board settings
MCUBoot layout
Region |
From |
To |
Size |
---|---|---|---|
MCUboot code |
0x60000000 |
0x6003FFFF |
256kB |
Primary slot |
0x60040000 |
0x6023FFFF |
4096kB |
Secondary slot |
0x60440000 |
0x6083FFFF |
4096kB |
MCUBoot header size is set to 1024 bytes
Signing algorithm is RSA-2048
Write alignment is 4 bytes
MCUBoot is configured to use its DIRECT_XIP image handling strategy
Flash remapping HW feature is used for zero-overhead image swapping
Image signing example
imgtool sign --key sign-rsa2048-priv.pem
--align 4
--version 1.1
--slot-size 0x400000
--header-size 0x400
--pad-header
ota_mcuboot_basic.bin
ota_mcuboot_basic.SIGNED.bin
Note that for the first image flashed manually together with the bootloader additional imgtool options “–pad” and “–confirm” must be used. Otherwise the bootloader would reject the image for missing data in the trailer area.