基于AVR单片机的电视标准制式图象发生器.doc

毕业设计 基于AVR单片机的电视标准制式图像发生器 Based on AVR monolithic integrated circuit television standard service pattern image generator 摘 要 由于电视技术的快速发展，目前视频信号叠加、图像处理已广泛运用于生活的各种场合。为了可以获得更好的图像的采集和处理，嵌入式微处理器被越来越广泛地应用。 AVR单片机是由ATMEL公司研发出的增强型内置Flash的精简指令集高速8位单片机ABSTRACT As a result of the television technology fast development, the video signal superimposition, the imagery processing widely have utilized at present in life each kind of situation. In order to may obtain a better image gathering and processing, the embedded microprocessor more and more widely is applied. The AVR monolithic integrated circuit is in the enlargement mode which researches and develops by ATMEL Corporation sets at Flash to simplify the set of instructions high speed 8 monolithic integrated circuits. It is also one kind type of embedded microprocessor in the operating speed, expand aspects and so on , system reliability, power loss and integration rate obtained the development which progressed by leaps and bounds. AVR as ar its brand-new hardware design and highly effective C translation efficiency, enable it to have the formidable function, definitely may satisfy the request which the black and white entire television signal produces. The topic using AVR series of Mega16 which produces the video signal, the synchronized signal, it simulates the synchronized signal and the video signal synthesis the entire television signal, realizes the TV service pattern by the line scan image production. Key words: AVR, television service pattern, synchronized signal, video signal image generator 目 录 第一章 绪 论 1 1.1 引言 1 1.2 论文目的 1 第二章 电视简介 2 2.1电视基本原理及制式 2 2.2电视术语 3 2.3 视频信号的组成 3 第三章 AVR Mega16单片机介绍 11 3.1 AVR单片机概述 11 3.2 AVR单片机硬件介绍 12 3.3. AVR单片机的开发 17 第四章 电视标准制式图像发生器 21 4.1 总体设计 21 4.2 硬件设计 21 4.3 软件设计 23 4.4 实验及结果 30 结 论 32 致 谢 33 参考文献 34 第一章 绪 论 1.1 引言 由于嵌入式系统应用技术的不断发展，对于核心处理器性能的要求越来越高，一些传统控制芯片已经难以胜任许多复杂的任务。由于种种原因，国内科研人员比较习惯于使用传统的 51 系列单片机设计应用系统，而这种选择常带来种种限制，甚至影响到整个系统的性能水平。随着微控制器技术的快速发展，国外的工程师近