基于单总线协议的智能传感器接口设计

The interface designing of the intelligent sensor based on Monobus LIN Protocol

介绍一种单总线LIN协议的基本工作原理,对LIN总线收发器TJA1020的引脚功能、工作模式及其与微控制器的接口方法作了较详细的探讨;以医用超声波气泡监测传感器为例,给出了基于单总线LIN协议的智能传感器与主处理器的通信接口设计方法;分析了在测控系统中选用LIN总线的各种优势。

This paper introduces the basic working principle about the monobus LIN protocol, and illuminates the function, working mode and the interface methods with the Micro-controller of the LIN bus transceiver's pin, TJA1020 in detail. Taking the ultrasonic air-bubble watching sensor as an example, the paper gives the design method how the intelligent sensor interfaces with the CPU based on monobus LIN protocol. And then the paper analyses all sorts of advantages why to choose the LIN bus in Measurement & Control System.