805l单片机串行通讯软件和硬件设计

An Investigation on Software and Hardware Design of the Serial Communication of 8051 Single-Ship Computers

针对中、小型计算机集散控制系统,以8051单片机为前沿机的串行通讯硬件和软件设计,进行了系统的探讨,提出了合理选用电气接口,转换电平,巧妙地利用8051内部串行接口和内部特殊功能寄存器SCON的设置等措施,增强了系统的抗干扰能力,从而保证了多机通讯的高质量。

This paper discusses the hardware and software design for the serial communication of two-stage control system of medium and small computer which use 8051 single-ship computer as frontier computer, and adopts the measure such as reasonable slection of electrical interface, interchange of level, and tactically make use of 8051 internal serial interface and special function register SCON which enhance the antiinterference ablity of the system and guarantee the high quality of multi-computer.