It has characteristics of simple circuit, needing few interface lines, high reliability and can perform duplex communication at high speed.
其特点是电路简单、占用口线少、速率高、可靠，可实现全双工通信。
UART allow to full-duplex communication at serial link circuit.
UART允许在串行链路上进行全双工的通信。
Meanwhile, an audio codec circuit board is made to realize full-duplex communication.
同时通过自制一块语音编解码拓展板，实现了全双工通信。
Meanwhile, an audio codec circuit board is made to realize full-duplex communication.
同时通过自制一块语音编解码拓展板，实现了全双工通信。
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