The author designs a software of communication based on the communication interface RS485, and shows the flow chart of the main program.
作者利用通信接口rs485设计编制了一套通讯软件，给出了主程序流程图。
It also introduced the principle of hardware structure and program flow chart of communication.
并介绍了硬件结构和通信程序流程图。
In addition, the communication with MCU and computer is realized by the serial communication port. The system's hardware schematics and software flow chart are also discussed in this paper.
此外，还利用单片机的串行通信模块，设计了与计算机通信的串行接口，并给出了系统的硬件电路图和软件流程图。
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