基于单片机的本地互联网络LIN总线帧头发送单元设计  

Design of Local Interconnect Network Bus Frame Header sending unit based on MCU

作　　者：彭晓珊 PENG Xiao-shan(Department of Teachers'Work Office,Guiyang University,Guiyang 550005,Guizhou,China)

机构地区：[1]贵阳学院教师工作处,贵州贵阳550005

出　　处：《贵阳学院学报（自然科学版）》2020年第2期63-67,共5页Journal of Guiyang University：Natural Sciences

基　　金：贵阳学院工程装备电控单元产学研培育基地项目(项目编号:20130035138)。

摘　　要：本地互联网络LIN (Local Interconnect Network)总线是串行通信协议总线,因其低成本的特点被汽车零部件制造商在车辆车窗、空调等电子控制单元的设计中广泛使用,LIN总线帧头由间隔场、同步场和标识符场构成,本文提出了基于51单片机的本地互联网络LIN总线帧头发送单元的硬软件设计,对比分析了利用单片机单个通用引脚虚拟串行通信模拟出帧头的方式和利用单片机UART接口引脚输出帧头的方式的优缺点,并给出了应用规则。LIN(local interconnect Network)bus is a serial communication protocol bus.Because of the low cost,it is widely used by auto parts manufacturers in the design of electronic control units such as vehicle windows,air conditioners,etc.LIN bus frame header is composed of interval field,synchronous field and identifier field.This paper presents the hardware and software design of LIN bus frame sending unit based on 51 single-chip microcomputer.The advantages and disadvantages of using single universal pin of single chip microcomputer to simulate serial communication and using UART interface pin of single chip microcomputer to output frame header are presented.The applicated rules of the design are also presented.

关 键 词：本地互联网络 单片机 总线帧头 发送单元 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]