作　　者： ; ; ; ;

机构地区： 大连交通大学电气信息学院

出　　处： 《电子工程师》 2007年第3期73-76,共4页

摘　　要： 介绍了8位Motorola单片机MC68HC908KX2与同类产品相比的优点,重点叙述了ICG(内部时钟发生器)模块取代晶振构成的时钟电路在系统中所具有的不可替代的优势。针对汽车检测产品可靠性高、方便实用、抗干扰能力强等特点,利用MC68HC908KX系列单片机提供的ICG模块和少量外围元件,设计了宝马汽车故障检测子系统。给出了ICG模块详细的设置方法、系统的硬件原理图和部分原代码。该方法解决了单片机系统在工控领域恶劣电磁环境下易受干扰的问题。 This paper describes the advantages of Motorola single chip microcomputer of MC68HC908KX, especially the un-replaceable advantage of ICG module. A fault detection sub-system for BMW automobile, characterized by high reliability, easiness to operate and strong anti-jamming capacity, is designed by making use of the ICG of single chip microcomputer of MC68HC908KX and a few peripheral elements. The paper presents the method of ICG module setting in detail, system hardware principle diagram, and partial code. The method by which the problem of how the system of single chip microcomputer is easily being disturbed in electromagnetic environment solved is suggested.

关 键 词： 单片机 模块 故障复位子系统

领　　域： [自动化与计算机技术] [自动化与计算机技术]