基于ISD4004芯片的语音录放系统设计wr格式.doc

基于单片机的语音录放器设计 自动化081 孟新 指导教师：孙新柱 摘要：本文介绍了基于STC12C5A60S2单片机及ISD4004语音板为主要部件的语音录放电路的工作原理、硬件和软件的设计。ISD4004系列工作电压3V,单片录放时间8至16分钟,音质好,适用于移动电话及其他便携式电子产品中。 芯片设计是基于所有操作必须由微控制器控制,操作命令可通过串行通信接口SPI送入。论文概述了语音录放电路的原理，并且在介绍语音录放系统功能的基础上，提出了系统的总体构成。针对录放系统的录音、放音部分的总体设计方案进行了论证。进一步介绍了单片机AT89C52应用在系统中的应用，分析了系统各部分的硬件及软件实现。 本次设计目是完成一个简单方便，能可靠稳定工作的语音录放系统，该方案结构简单,控制可靠, 便于推广。 关键词：ISD4004 AT89C52单片机 语音录放 Abstract：This paper introduces ISD4004 based on STC12C5A60S2 single chip computer and of the main parts of speech plate as the working principle of voice recording circuit and the design of hardware and software. ISD4004 series working voltage, monolithic 3V recording time 8 to 16 minutes, timbre, suitable for mobile phones and other portable electronics. Chip design is based on all the operation must by micro controller control, operation orders through serial communication interface SPI into. This paper summarizes the principle of voice recording circuit, and introduces the function of speech on the basis of recording system, puts forward the general structure of the system. Recording system for the recording, playback part of the overall design scheme is demonstrated. This paper introduces microcontroller AT89C52 single applications in system, the application system were analyzed each part of hardware and software realization. This design is to complete a reliable and stable working voice recording circuit. The design is simple in structure, reliable control and facilitate promotion. Keyword: ISD4004；89C52microcontroller；voice recording and playback 目录 TOC \o 1-3 \h \u HYPERLINK \l _Toc27785 引 言 PAGEREF _Toc27785 1 HYPERLINK \l _Toc21786 第1章绪论 PAGEREF _Toc21786 2 HYPERLINK \l _Toc3310 1.1系统设计的意义 PAGEREF _Toc3310 2 HYPERLINK \l _Toc17864 1.2系统设计的目的 PAGEREF _Toc17864 2 HYPERLINK \l _Toc7014 1.3系统采用的实现方法 PAGEREF _Toc7014 3 HYPERLINK \l _Toc30327 第2章 单片机控制技术和开发环境介绍 PAGEREF _Toc30327 4 HYPERLINK \l _Toc31798 2.1 STC12C5A60S2单片机性能和引脚介绍 PAGEREF _Toc31798 4 HYPERLINK \l _T