rt-thread/bsp/nuvoton/numaker-iot-ma35d1/nuwriter_scripts/pack-nand.json

{
    "image":
    [
        {  
          "offset": "0x0",
          "file": "conv/header.bin",
          "type": 1
        },

        {
          "offset": "0x20000",
          "file": "ddrimg/enc_ddr3_winbond_512mb.bin",
          "type": 0
        },
        {
          "offset": "0x80000",
          "file": "../rtthread.bin",
          "type": 1
        }
    ]
}