[3.1 硬件连接](3.1%E7%A1%AC%E4%BB%B6%E8%BF%9E%E6%8E%A5.md) [3.2 波特率配置](3.2%E6%B3%A2%E7%89%B9%E7%8E%87%E9%85%8D%E7%BD%AE.md) [3.3 调试](3.3%E8%B0%83%E8%AF%95.md) [3.4 Driver Model(DM)模型](3.4DriverModelDM%E6%A8%A1%E5%9E%8B.md) [3.5 串口驱动程序及DTS](3.5%E4%B8%B2%E5%8F%A3%E9%A9%B1%E5%8A%A8%E7%A8%8B%E5%BA%8F%E5%8F%8ADTS.md)