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该文给出三种利用PC微机RS-232C端口和MCS-51/96系列单片机的串行通讯口实现主从多机通讯的接口电路和通讯程序的设计要点,并分析了这三种接口的特点。
This paper presents three main design points of the interface circuit and communication program that use the PC microcomputer RS-232C port and the MCS-51/96 series microcontroller to realize the master-slave multi-machine communication. The paper also analyzes the key points of these three interfaces Features.