闲来无事，折腾下这个NVR，首先找到TTL口，连上TTL线，打开串口工具，波特率设置为115200。
输出：
U-Boot 2010.06 (Sep 12 2014 - 15:20:31) Check spi flash controller v350... Found Spi(cs1) ID: 0xEF 0x40 0x18 0x00 0x00 0x00 spi->chipsize:16778240 start_up_mode is 3bite Spi(cs1): Block:64KB Chip:16385KB Name:"W25Q128B" Spi(cs1): 3 addr SPI read:0x5,6B,0xc write:0x5,32,0xc erase:0x0,D8,0xc num_chip of Spi: 1 In: serial Out: serial Err: serial (Re)start USB search... USB: scanning bus for devices... 1 USB Device(s) found scanning bus for storage devices... 0 Storage Device(s) found Hit any key to stop autoboot: 0 saveaddr: 82000000 do_netupdate Hisilicon ETH net controler MAC: 00-00-23-34-45-66 UP_PORT : phy status change : LINK=UP : DUPLEX=FULL : SPEED=100M JVUpd Start OurPort: 1350 starting... packet not correct: des: 137, our: 1350 packet not correct: des: 137, our: 1350 packet not correc Leekwen 认证博客专家 安全架构 物联网 研发者 个人微信：leekwenty具体的信息，大家可自行去百度搜索关键词：leekwen不过，我没有上过学，你们可不要骗我啊！