lock_lfvx/bk_idk/tools/env_tools/beken_packager/config.json

{
    "magic": "FreeRTOS",
    "version": "0.1",
    "count": 1,
    "section": [
        {
            "firmware": "bootloader.bin",
            "version": "2M.1220",
            "partition": "bootloader",
            "start_addr": "0x000000000",
            "size": "64K"
        }
    ]
}