【正文】 .......... 11 時(shí)鐘電路設(shè)計(jì) ............................................................................................ 13 簡(jiǎn)介 .................................................................................... 13 數(shù)據(jù)的讀寫 ..................................................................................... 15 顯示電路設(shè)計(jì) ............................................................................................ 16 基本簡(jiǎn)介 ................................................................................. 16 與單片機(jī)接口 ......................................................................... 16 的指令說明及時(shí)序 ................................................................ 18 電鈴電路設(shè)計(jì) ............................................................................................ 21 語音芯片簡(jiǎn)介 .................................................................. 21 工作原理 .......................................................................... 23 IV 電燈控 制 .................................................................................................... 24 本章小結(jié) .................................................................................................... 25 第 4 章軟件電路設(shè)計(jì) .............................................................................................. 26 主程序軟件設(shè)計(jì) ........................................................................................ 26 時(shí)鐘系統(tǒng)軟件設(shè)計(jì) .................................................................................... 27 顯示系統(tǒng)軟件設(shè)計(jì) .................................................................................... 28 本章小結(jié) .................................................................................................... 29 第 5 章系統(tǒng)測(cè)試 ...................................................................................................... 30 硬件測(cè)試 .................................................................................................... 30 軟件測(cè)試 .................................................................................................... 30 結(jié) 論 ......................................................................................................................... 32 致 謝 ......................................................................................................................... 33 參考文獻(xiàn) .................................................................................................................. 34 附錄 1........................................................................................................................ 35 V CONTENTS ABSTRACT(Chinese) ............................................................................................... I ABSTRACT ............................................................................................................... II CHAPTER 1 INTRODUCTION ............................................................................ 1 Purpose And Significance of This Research ............................................... 1 General Situation At Home And Abroad ..................................................... 2 The Content And Structure of This Article ................................................. 3 CHAPTER 2 THE DESIGN OF THE PROJECT ............................................. 4 System Performance And Requirements ..................................................... 4 System Block Diagram ................................................................................ 6 Program To Select ........................................................................................ 6 Power Supply Module Selection ...................................................... 6 Microcontroller To Select ................................................................. 7 Display Module Selection ................................................................ 7 Clock Module Options...................................................................... 8 Summary....................................................................................................... 8 CHAPTER 3 THE DESIGN OF THE HARDWARE CIRCUIT ...................... 9 An Overview of The System Hardware ...................................................... 9 MCU Control Circuit Design....................................................................... 9 STC89C52 Profile............................................................................. 9 MCU Control Module Design ........................................................ 11 Clock Circuit Design.................................................................................. 13 A Brief Introduction of DS1302 ..................................................... 13 Read And Write Data ...................................................................... 15 Clock Circuit Design.................................................................................. 16 A Brief Introduction of 1602 .......................................................... 16 1602Interface With MCU ............................................................... 16 1602 Instructions And Timing ........................................................ 18 Bell Circuit Design..................................................................................... 21 A Brief Introduction of ISD1820 .................................................... 21 The Working Principle of ISD1820................................................ 23 VI The Lamp Control ...................................................................................... 24 Summary..................................................................................................... 25 CHAPTER 4 THE DESIGN OF SOFTWARE CIRCUIT ............................... 26 The Design of The Main Software ............................................................ 26 The Design of Th