51单片机iic通信

51单片机的IIC通信是一种同步通信方式，使用两根线SDA和SCL进行数据传输和时序控制。在向AT24C02写入数据时，主机会发送起始信号、寻址信号、写入位置地址和要写入的数据，最后发送终止信号。而在读取AT24C02中某个地址的数据时，主机会发送起始信号、寻址信号、要读取的地址，然后重新启动总线并发送读信号，最后读取数据。这样可以实现主机和从机之间的数据交互。\[1\]\[2\]\[3\]
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