单片机 PC机RS-串口通讯 C语言编程 毕业设计论文 毕设.doc

毕业设计（论文）说明书 题目： PC机RS-232串口通讯C语言编程 系 名 信息工程系 专 业 通信工程 年 级 姓 名 指导教师 年 月 日 摘 要 AVR单片机是ATMEL公司推出的世界上著名的高性能低功耗非易失性存储器和数字集成电路的一流半导体，它的EEPROM 电可擦除技术、闪速存储器技术和质量、高可靠性的生产技术。在CMOS 器件生产领域中，ATMEL 的先进设计水平、优秀的生产工艺及封装技术一直处于世界的领先地位，这些技术用于单片机生产使单片机也具有优秀的品质、在结构、性能和功能等方面都有明显的优势。TMEL 公司的单片机是目前世界上一种独具特色而性能卓越的单片机。它在计算机外部设备、通讯设备、自动化工业控制、宇航设备、仪器仪表和各消费类产品中都有着广泛的应用前景。 关键字：avr环境 Abstract Avr the machine of single slice is an ATMEL company to release in the world notability of production technique for electricity of top-grade semi-conductor for of low power waste of high performance not and easily losing the memorizer with arithmetic figure integrated circuit, its EEPROM can wiping divided bying the technique, flash soon storage technique with quantity, high and dependable. In the CMOS parts of an apparatus production craft for advanced design level, excellence for producing the realm inside, ATMEL of piece and seal to pack the technique to always be placed in the be in the leading of world the position, these techniques to used for the quality for machine producing making the machine of single slice too having excellence of single slice, wait with function to aspect all contain obvious advantage at the construction, function.The TMEL company machine of single slice is current in the world a kind of characteristic and has the special features but function machine of outstanding single slice.It is in the calculator exterior equipments, communication equipments, automation industry control, space navigation equipments, instrument the appearance with every kind of consumption product all have got the extensive and applied foreground. Key word: Avr environment 目 录 第一章 ATMEGA 8515介绍 1 1.1 Atmega 8515产品特性 1 1.1.1 RISC 结构 1 1.1.2 外设特点 1 1.2 管脚定义 3 1.3 ALU －算术逻辑单元 4 1.4 状态寄存器与通用状态寄存器文件 4 1.4.1 状态寄存器 5 1.4.2 通用寄存器文件 6 1.4.3 X、Y、Z 寄存器 6 第二章 RS-232介绍 8 2.1 RS-232 简介 8 2.2 MAX232 芯片 9 2.2.1 RS232 (DB9) MAX232引脚定义 9 2.2.2 MAX232原理