DA14580蓝牙硬件系统总览（二）接续上一篇：DA14580蓝牙硬件系统总览（一）3.6 INTERFACES 接口3.6.1 UARTS （串口）The UART is compliant to the industry-standard 16550 and is used for serial communica
tion with a peripheral, modem (data carrier equipment, DCE) or data set.UART符合行业标准16550，并用
