基于proteus和keil的a/d和d/a转换电路设计.doc

基于Proteus和keil的A/D和D/A转换电路设计

目录

1 引言                                                                     1                                                       
2 设计理论基础                                                             2
2.1 Proteus和Keil简介                                                     2                                      
2.2 单片机系统分系                                                         3                                                                                                                     
2.2.1  外部引脚                                                            3 
2.1.2单片机的方式                                                         4                                     
2.2 A/D转换与接口                                                         4
2.2.1 A/D转换器简介                                                        5
2.2.2 ADC0808与MCS-51接口                                                7
2.3 D/A转换与接口                                                         10
2.3.1 D/A转换器简介                                                       10
2.3.2 DAC0832与MCS-51单片机接口                                          11     
3 硬件电路逻辑图                                                          13               
3.1系统设计                                                              14       
3.2 模块功能简介                                                          14
4 硬件系统设计与简介                                                      15
4.1 A/D转换电路硬件设计                                                   15
4.2.D/A转换电路硬件设计                                                  16
5 软件系统设计                                                            18  
5.1 A/D转换电路程序设计                                                   18        
5.2 A/D转换电路程序设计                                                   19          
5.2.1 锯齿波程序                                                          20        
5.2.2 三角波程序                                                          20
5.2.3 方波程序                                                            20
6总结                                                                    21
参考文献                                                                  21
致谢                                                                      21

 

摘  要：本文主要介绍以Proteus和Keil作为工具软件，以AT98C51芯片和ADC0808芯片以及DAC0832芯片作为基础模块,通过设计构成能够将模拟量转换成数字量的A/D转换电路和能够将数字量转换成模拟量的D/A转换电路。通过Proteus的仿真可知该设计方案是可行的。这两种电路的主要用途是作为计算机和外部被控对象之间的一种桥梁。
关键字：单片机；Proteus；Keil；A/D；D/A

A/D and D/A Converter Circuit Design Based on Proteus and Keil

Abstract: This paper introduces the Proteus and Keil software as a tool to AT98C51 chips and ADC0808 chips and DAC0832 chip as the basic module, through the design to the analog form into digital amount of A / D converter circuit and the ability to convert the analog digital The D / A converter circuit. The simulation shows that by Proteus design is feasible. These two circuits are mainly used as a computer and an external bridge between charged objects.
Key Words: SCM； PROTEUS；KEIL；A/D；D/A