目  錄

摘要 I

Abstract II

第一章 緒論 1

1.1 單片機(jī)設(shè)計(jì)的目的和意義 1

1.2 單片機(jī)發(fā)展現(xiàn)狀和前景展望 1

1.2.1 課題發(fā)展現(xiàn)狀 1

1.2.2 課題前景展望 2

1.3 Protel 99 SE概述 2

1.3.1 Protel 99 SE的組成 3

1.3.2 Protel 99 SE的應(yīng)用 4

1.3.3 電路板的設(shè)計(jì)步驟 6

第二章 單元模塊的設(shè)計(jì) 8

2.1 電源模塊 8

2.2 單片機(jī)最小系統(tǒng)模塊 8

2.3 時(shí)鐘模塊 9

2.4 按鍵模塊 11

2.5 顯示模塊 12

2.5.1 主要技術(shù)參數(shù) 13

2.5.2 引腳功能 13

2.5.3 基本操作時(shí)序 14

2.5.4 狀態(tài)字說(shuō)明 14

2.5.5 RAM地址映射圖 14

2.5.6 指令說(shuō)明 15

2.5.7 接口時(shí)序圖 16

2.6 喇叭模塊 18

第三章 系統(tǒng)軟件設(shè)計(jì) 19

3.1 系統(tǒng)軟件按鍵程序設(shè)計(jì) 20

3.2 系統(tǒng)軟件打鈴器時(shí)間設(shè)置設(shè)計(jì) 21

第四章 系統(tǒng)功能介紹及調(diào)試 22

4.1 打鈴器功能簡(jiǎn)介 22

4.2 打鈴器優(yōu)點(diǎn) 22

4.3 打鈴器缺點(diǎn)與不足 22

4.4 系統(tǒng)調(diào)試 22

4.3.1 硬件調(diào)試 22

4.3.2 軟件調(diào)試 23

結(jié)束語(yǔ) 24

參考文獻(xiàn) 25

致謝 26

附錄 27

附錄1 27

附錄2 41

摘要：?jiǎn)纹瑱C(jī)是一種集成在電路芯片，是采用超大規(guī)模集成電路技術(shù)把具有數(shù)據(jù)處理能力的中央處理器CPU隨機(jī)存儲(chǔ)器RAM、只讀存儲(chǔ)器ROM、多種I/O口和中斷系統(tǒng)、定時(shí)器/計(jì)時(shí)器等功能（可能還包括顯示驅(qū)動(dòng)電路、脈寬調(diào)制電路、模擬多路轉(zhuǎn)換器、A/D轉(zhuǎn)換器等電路）集成到一塊硅片上構(gòu)成的一個(gè)小而完善的計(jì)算機(jī)系統(tǒng)。

本文首先概述了單片機(jī)電路的發(fā)展歷史，單片機(jī)設(shè)計(jì)方法和工具的變革，單片機(jī)技術(shù)及發(fā)展，C語(yǔ)言硬件描述語(yǔ)言，Protel 99 se的應(yīng)用，典型的單片機(jī)電路設(shè)計(jì)流程，然后詳細(xì)地介紹了單片機(jī)自動(dòng)打鈴器與控制電路的完整的設(shè)計(jì)過(guò)程。

單片機(jī)自動(dòng)打鈴器控制系統(tǒng)主要由單片機(jī)最小系統(tǒng)組成。

單片機(jī)自動(dòng)打鈴器由電源電路，單片機(jī)最小系統(tǒng)，時(shí)鐘電路，蜂鳴電路，顯示電路。

單片機(jī)自動(dòng)打鈴器控制電路設(shè)計(jì)包括復(fù)位電路，按鍵電路。

按鍵電路設(shè)計(jì)包括時(shí)鐘的調(diào)整，打鈴時(shí)間的設(shè)定。

關(guān)鍵詞：?jiǎn)纹瑱C(jī)；C語(yǔ)言；Protel 99 se；單片機(jī)自動(dòng)打鈴器。

Handset keyboard connection and control circuit design

Abstract：Single Chip Microcomputer(SCM) is a kind of integrated circuit chip, which uses the very large scale integrated circuits technology. It integrates central processing unit(CPU) which is capable of data processing, Random Access Memory (RAM), Read-Only Memory (ROM), I/O outputs, interrupt system and a Timer(probably also including display drive circuit, pulse width modulation circuit, analog multiplexer and A/D convertor ) into one single silicon chip to form a micro but complete computer system.

At beginning, this article gives an overview of the history of the SCM, the design methods of SCM and the revolution of tools, technology and development of SCM, C language, application of Protel 99 se and the typical procedures of SCM circuits design. Then, it details the entire design procedures of the SCM controlled automatic bell and the relevant control circuits.

SCM controlled automatic bell is mainly made up of the minimum system of Single Chip Microcomputer. It contains power circuit, microcomputer system, clock circuit, buzzer circuit and display circuit. The control circuits include reset circuit and key circuit. The design of key circuit contains adjustment of clock and time setting of the bell.

Keywords:  Single Chip Microcomputer(SCM); C language; Protel 99 se; SCM controlled automatic bell.