多功能出租車計(jì)價(jià)器

目 錄

 引 言·································································· 1
1. 1  出租車計(jì)價(jià)器概述········································································· 1
1. 2  本設(shè)計(jì)任務(wù)··················································································· 1
  1.2.1  設(shè)計(jì)任務(wù)················································································· 1
  1.2.2  設(shè)計(jì)要求················································································· 1
1. 3  系統(tǒng)主要功能···············································································  2
 出租車計(jì)價(jià)器硬件設(shè)計(jì)················································· 3
　　　2.1 系統(tǒng)的硬件構(gòu)成及功能···································································· 3
　　　2. 2  AT89S51單片機(jī)及其引腳說明·························································· 3
　　　2.3  AT24C02引腳圖及其引腳功能··························································· 6
　　　2. 4  AT24C02 掉電存儲(chǔ)單元的設(shè)計(jì)·························································  6
　　　2.5  里程計(jì)算、計(jì)價(jià)單元的設(shè)計(jì)····························································· 7
　　　2.6  數(shù)據(jù)顯示單元設(shè)計(jì)·········································································· 8
 系統(tǒng)軟件設(shè)計(jì)···························································10
　　　3. 1  系統(tǒng)主程序設(shè)計(jì)············································································ 10
3. 2  定時(shí)中斷程序設(shè)計(jì)········································································ 10
3. 3  里程計(jì)數(shù)中斷服務(wù)程序設(shè)計(jì)···························································· 10
3.4  中途等待中斷服務(wù)程序設(shè)計(jì)···························································· 10
3. 5  鍵盤服務(wù)程序設(shè)計(jì)·········································································10
3. 6  顯示子程序服務(wù)程序設(shè)計(jì)······························································· 10
 系統(tǒng)調(diào)試與測(cè)試結(jié)果分析·············································· 13
　　　4. 1  使用的儀器儀表··········································································· 13
　　　4.2  系統(tǒng)調(diào)試····················································································· 13
　　　4.3  測(cè)試結(jié)果····················································································· 13
　　　4.4  測(cè)試結(jié)果分析·············································································· 13
 結(jié)束語································································· 14
附錄··········································································· 15
參考文獻(xiàn)······································································· 40