一种一对多双向通信编解码电路的设计

Design of one to many end point encode and decode circuit

设计一种基于通用芯片PT2262/2272,实现一对多控制的编解码电路:一个控制中心控制多个终端,终端工作状态可经查询反馈给控制中心;各个终端通过手动设置通用芯片的地址码相区别,控制中心采用EDA技术实现自动编解码。给出了硬件结构,关键编解码模块的框图及仿真结果。

A encode and decode circuit based on universal integrated circuit PT2262/2272 is designed. The circuit can implement both-way communication from control center to many end points. Each end point receive control signal from control center and feedback status information to it. Varying end point is distinguished by locating the address of PT2262/2272. The encode and decode circuit in control center is designed through tools about electronic design automation. The complete architecture of the system is finished. The block diagram and simulation waves of the encode and decode circuit in control center are prnvided.