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UART、I2C、SPI、TTL、RS232、RS422、RS485、CAN、USB、SD卡、1-WIRE、Ethernet
RS-485采用平衡发送和差分接收,因此具有抑制共模干扰的能力 ... 所以称0为显性,1为隐性。 USB接口最少有四根线,其中有两根是数据线,而所有的USB数据传输都是通过这两根线完成。它的通信远比串口复杂的多。 两根数据线采用差分传输 ...
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