FW Image Cutter

Simple tool for generating FoTA compatible images from toolchain output

Building

On linux, make all

Generating FoTA Compatible Images

• To generate image for Upper/Lower sections: make upper or make lower
• To generate images without metadata (for test/comparison): make upper_nometa or make lower_nometa

Tweaking the Tool

• All addresses/constants in Makefile
• SECTION_SIZE -> Size of each FoTA image (must exactly match the upper/lower partition size in linker script)
• UPPER_SECTION_ADDRESS and LOWER_SECTION_ADDRESS -> Start address for upper and lower images respectively
• _SIG, _MAJOR_VER and _MINOR_VER -> Metadata for respective images
• CRC routine for the board is crc32.h