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10通用同步异步收发器(USART)
1、处理器与外部设备通信的两种方式: 串行通信有两种通信方式: 并行通信: -传输原理:数据各个位同时传输。 串行通信方式有 UART USB IIC SPI CAN 以太网等都是采用串行通信方式。 数据按位顺序传输。 允许数据同时在两个方向上传输,因此,全双工通信是 ...
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