【正文】 .................2 系統(tǒng)設(shè)計的意義 ....................................................................................................................2 系統(tǒng)設(shè)計的目的 ....................................................................................................................2 系統(tǒng)采用的實現(xiàn)方法 ...........................................................................................................3第 2章 單片機控制技術(shù)和開發(fā)環(huán)境介紹 ........................................................................4 89C52 單片機性能和引腳介紹 ...........................................................................................4 概述 ...............................................................................................................................4 AT89C52 主要性能參數(shù) ................................................................................................4 引腳功能說明 .................................................................................................................4 KEIL 開發(fā)環(huán)境和建立工程 ....................................................................................................8 keil 簡介 ..........................................................................................................................8 Keil 工程建立 .................................................................................................................8 ISD4004 介紹 .....................................................................................................................11 性能簡述和引腳圖 .......................................................................................................11 引腳描述 .......................................................................................................................11 SPI(串行外設(shè)接口) ..........................................................................................................13 協(xié)議介紹 .......................................................................................................................13 信息快進 ......................................................................................................................14 上電順序 .......................................................................................................................14 SPI 端口的控制位 ........................................................................................................15 SPI 控制寄存器 ............................................................................................................16 時序 ...............................................................................................................................16第 3章 系統(tǒng)總體設(shè)計 ...........................................................................................................18 硬件電路設(shè)計 ....................................................................................................................18I 硬件電路圖 ...................................................................................................................18 ISD4004 原理圖 ............................................................................................................18 軟件設(shè)計 .............................................................................................................................19 語音芯片的內(nèi)部信息尋址機制 ...................................................................................19 監(jiān)控 ISD4004 錄音地址的實例 ...................................................................................20 程序流程圖 ...................................................................................................................21第 4 章 測試實例 ....................................................................................................................23 測試內(nèi)容 ............................................................................................................................23 測試結(jié)果 ............................................................................................................................23 基于 ISD4004 的家庭語音報警系統(tǒng)設(shè)計 ........................................................................23 語音錄放模塊設(shè)計 .....................................................................................................24 系統(tǒng)軟件設(shè)計 .............................................................................................................25 基于 ISD4004 的紅外遙控醫(yī)院語音播報系統(tǒng)的設(shè)計 .....................................................26 系統(tǒng)的硬件設(shè)計 ...........................................................................................................26 系統(tǒng)原理電路設(shè)計 .......................................................................................................27 語音錄放模塊 ...............................................................................................................28結(jié) 論 .........................................................................................................................................29致 謝 ..........................................................................