Description: If you are using pc' s serial port to transfer data much easier to handle, you can install a serial port monitoring tool (such as AccessPort). Computer port is generally 2,3,5 3 line communication, 2 is the txd, 3 is rxd, 5 is GND, but the computer and the microcontroller logic levels of different logic level, specifically to see the serial port communication protocols, the Internet is easy to search . IIC bus data can oscilloscope view, the two probes, a connection clk, another connection sda, IIC communication can be observed when the data transmitted.
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shizhong.c
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