基于AVR单片机的教学实验系统的设计与开发

发布时间：2018-03-07 03:05

本文选题：Atmega48　切入点：AVR　出处：《湖南大学》2013年硕士论文　论文类型：学位论文

【摘要】：目前，大部分学校仍以20世纪80年代开始流行的MCS-51系列单片机为载体，以汇编语言为编程工具，以并行扩展为核心讲述单片机的原理和应用。尽管MCS-51在实际应用中还占有相当大的市场，但随着电子技术的迅猛发展，传统51单片机由于自身结构的原因，在数据处理能力、系统扩展等多个方面显得不能适应新技术的发展，而且通过汇编语言来介绍单片机技术，容易偏离介绍单片机技术这个主题，再选用51单片机作为载体讲授单片机技术已不再是最好的选择。本文以张家界航空工业职业技术学院的单片机课程改革为背景，选用AVR系列单片机中的Atmega48研制了单片机教学实验系统。在实验系统硬件方面，主要介绍了硬件电路的选型、各单元电路的设计原理和硬件测试等内容。在实验系统软件方面，主要介绍利用C语言和AVRstdio+WINAVR开发平台开发的实验项目，重点介绍了利用C语言开发单片机的优势以及模块化编程的思想，还对相关硬件进行模拟仿真。文章给出了单片机教学实验系统的硬件电路原理图，实验项目的软件流程图和C程序代码。完成了系统的组装，，对各功能模块进行了Proteus仿真和硬件电路的调试，并运用于实际教学中。从教学老师及学生反应的情况表明，本实验系统运行可靠、稳定，完全能够满足教学的要求，达到了设计指标。可以做为各高职院校单片机教学实验系统。最后,文章对课题进行了总结,提出了今后该实验系统进一步完善的方向。
[Abstract]:At present, most schools still use the MCS-51 series microcontroller, which has been popular since 1980s, as the carrier and assembly language as the programming tool. The principle and application of single chip computer are described with parallel expansion as the core. Although MCS-51 still occupies a large market in practical application, with the rapid development of electronic technology, the traditional 51 single chip microcomputer has the ability of data processing because of its own structure. System expansion and other aspects can not adapt to the development of new technology, and through assembly language to introduce single-chip computer technology, it is easy to deviate from the introduction of single-chip computer technology this theme, Then choose 51 single-chip microcomputer as carrier to teach MCU technology is no longer the best choice. Based on the reform of single chip microcomputer course in Zhangjiajie Aeronautical Industry Vocational and Technical College, the teaching experiment system of single chip computer is developed by using Atmega48 of AVR series singlechip. In the aspect of hardware of experiment system, the selection of hardware circuit is mainly introduced. The design principle and hardware test of each unit circuit. In the aspect of experimental system software, this paper mainly introduces the experimental project which is developed by using C language and AVRstdio WINAVR development platform. The advantage of using C language to develop single chip microcomputer and the idea of modular programming are introduced emphatically. The simulation of related hardware is also carried out. In this paper, the hardware circuit schematic diagram, software flow chart and C program code of the SCM teaching experiment system are given. The assembly of the system is completed, and the Proteus simulation and the hardware circuit debugging of each functional module are carried out. From the reaction of teaching teachers and students, it shows that the experimental system is reliable, stable and can meet the requirements of teaching. It can be used as the teaching experiment system of single-chip microcomputer in each higher vocational college. Finally, the paper summarizes the subject and puts forward the direction of further improvement of the experiment system in the future.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP368.1

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