rt-thread/bsp/nuvoton/numaker-hmi-ma35d1/nuwriter_scripts/pack-sd.json

{
    "image":
    [
        {  
          "offset": "0x400",
          "file": "conv/header.bin",
          "type": 0
        },
        {
          "offset": "0x1000",
          "file": "ddrimg/enc_ddr3_winbond_256mb.bin",
          "type": 0
        },
        {
          "offset": "0x4000",
          "file": "../rtthread.bin",
          "type": 0
        }
    ]
}