基于UART设备的现场总线通信协议

Equipment based on UART Field Bus Communication Protocol

设计一种用来实现单片机等带有UART结构的设备之间多机通信的通信协议软件。该软件采用令牌环原理,使UART设备借助RS485总线的构架,进行无主机的多机通信,从而实现了挂载在总线上的任意两个设备之间的数据通信,该设计可以用于实现工业现场控制设备的现场总线通信。

To Design a kind of used to implement Single chip microcomputer with UART structure between multiple machine communication equipnlent communication protocol software. The software uses a token ring theory, so UART device using RS485 bus architecture, without a host computer communica- tion, thus realizing the mount in the bus on any digital communication between two devices, the design can he used in industrial field control device of field bus communication.