文档介绍：吉林建筑大学城建学院
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摘要
本文介绍的是数字万用表的发展背景和利用单片机,A/D转换芯片结合的方法设计一个数字万用表。它的具体功能是:测量直流电压5V挡和50V挡,测量电阻1k欧姆,10k欧姆,100k欧姆,1M欧姆,测量电流。单片机是一种集成电路芯片,采用超大规模技术集成了具有数据处理能力(如算术运算,逻辑运算、数据传送、中断处理)的微处理器(CPU)。随着单片机技术的飞速发展,各种单片机蜂拥而至,单片机技术已成为一个国家现代化科技水平的重要标志。本课程设计的课题是“数字万用表的设计”。主要考核我们对单片机技术,编程能力等方面的情况。观察独立分析、设计单片机的能力,以及实际编程技能。
本课程设计主要解决电阻、交直流电流、交直流电压的测量,被测量最后都是以电压的形式送入AD进行测量的、A/D转换、数据处理及显示控制等六个模块。控制系统采用STC89C52单片机,A/D转换采用ADC0804,显示部分用1602液晶。
关键字:数字万用表 A/D转换与控制 ADC0804 单片机
ABSTRACT
This article introduced a digital watch million in the development of the background and the use of a monolithic integrated circuits, the conversion of a way d chip design a number of schedule. its function is a dc voltage 5v , to measure the gear and 50v, measured in ohm. resistance 1k 10k the ohm, the ohm, 100k 1m ohms, the current monolithic integrated circuits. puter chip, technical integration VLSI a data processing capability as (arithmetic, logic and data, network interrupt handling) microprocessor (cpu) monolithic integrated circuits. as technology evolved. monolithic integrated circuits to monolithic integrated circuits technology has e a modern country level of technology.
this course of the important issue of "digital design a million in the design of the" monolithic integrated circuits. the main examination in our ability in technical and ability to observe the situation. an independent analysis, designing monolithic integrated circuits, and practical skills in programming. this course is designed mainly to solve the current, voltage, stc89c52 monolithic integrated circuits, the use of ADC0804 that was liquid crystal.
keyword : Digital universal meter AD changs and controls ADC0804
目录
摘要……………………………………………………1
ABSTRACT ……………………………………………………………………………2
第1章绪论…………………………………………………………………………4
…………………………………………………………4
第2章万用表的介绍,方案选择……………………………………………5
万用表的功能介绍…………………………………………………………5
万用表的方案选择…