畢業(yè)設(shè)計(jì)-基于單片機(jī)的十字路口交通燈設(shè)計(jì)(存儲(chǔ)版)
【正文】 供工作電壓。滿足設(shè)計(jì)要求。 typedef unsigned int uint。 sbit NS_R=P1^3。 void delay500ms()。 WE_R=OFF。 NS_G=OFF。 delay500ms()。 delays(55,59)。i0。 WE_Y=OFF。i) { TMOD=TMOD|0X10。 while(s) { for(i=20。 } sec。 TH1=60536/256。 } void INT0_SIR() interrupt 0 { EX0=0。 WE2=0。 WE2=0。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。s 21 win. Michel Platini, president of European football39。 The end of our life, and can meet many things really do? 而窮盡我們的一生，又能遇到多少事情是真正地非做不可？ During my childhood, think lucky money and new clothes are necessary for New Year, but as the advance of the age, will be more and more found that those things are optional。s time, your ideas are always special to clear. Want, want, line is clear, as if nothing could shake his. Also once seemed to be determined to do something, but more often is he backed out at last. Dislike his cowardice, finally found that there are a lot of love, there are a lot of miss, like shadow really have been doomed. Those who do, just green years oneself give oneself an arm injection, or is a selfrighteous spiritual. 一個(gè)人的時(shí)候，自己的想法總是特別地清晰。 Have declared the end of the encounter that haven39。t. Baumgartner still will free fall at a speed that would cause you and me to pass out, and no parachute is guaranteed to work higher than 25,000 feet (7,620 meters). cause there 。 Those were broken into various shapes of stationery。 Originally, this world, can produce a chemical reaction to an event, in addition to resolutely, have to do, and time. 原來，這個(gè)世界上，對(duì)某個(gè)事件能產(chǎn)生化學(xué)反應(yīng)的，除了非做不可的堅(jiān)決，還有，時(shí)間。總覺得自己自己似乎應(yīng)該去做點(diǎn)什么，或者寫點(diǎn)什么。s Premier League match at Chelsea on Sunday. I am going to be at the match tomorrow and I have asked to meet Yaya Toure, he told BBC Sport. For me it39。 flag=1。 flag=0。 TL1=60536%256。 EX0=1。j)。 while(!TF0) { if(alarm_flag) return。 } } void delays(uchar s,uchar init) { uchar i。 for(i=10。 } } sec=0。 NS_R=OFF。 NS_Y=OFF。 delay500ms()。 WE_Y=ON。 while(1) { while(!alarm_flag) { WE_G=ON。 /*======================自定義子程序 ===================*/ void delays(uchar s,uchar init)。 sbit WE_Y=P1^1。讓我在以后求職就業(yè)中更好的學(xué)習(xí)和提高自己。緊急按鈕的作用是緊急狀態(tài)下，所有方向均為紅燈，禁止一切車輛通行。其他引腳 I/O 相應(yīng)的擴(kuò)充功能。 方案二：采用晶振組成時(shí)鐘電路。 顯示模塊的選擇 方案一：采用大屏幕點(diǎn)陣顯示屏。通過各種邏輯門電路的組合連接，實(shí)現(xiàn)系統(tǒng)功能。此時(shí)東西方向車 輛通行，南北方向禁止。 中國(guó)最早的馬路紅綠燈，是于 1928年出現(xiàn)在上海的英租界。它已成為工業(yè)控制領(lǐng)域，智能儀器儀表，尖端武器，日常生活中最廣泛使用的控制器。 摘 要 交通燈是交管部分管理城市交通的重要工具。 單片機(jī)的應(yīng)用已經(jīng)滲透到國(guó)民經(jīng)濟(jì)的各個(gè)部門和領(lǐng)域，它起到了越來越重要的作用。所以我們用紅色表示禁止。 第 二 章 系統(tǒng) 方案 系統(tǒng)要求指標(biāo)及其功能 本系統(tǒng)要實(shí)現(xiàn)： 第一階段：東西方向綠燈亮，南北方向紅燈亮，倒計(jì)時(shí) 60秒。 各種方案 選擇 比較 實(shí)現(xiàn)方式的選擇 方案一：采用純數(shù)字門電路。故采用本方案。但此方案輸出頻率較低，且計(jì)時(shí)不準(zhǔn)確，成本也較高。 單元電路 設(shè)計(jì) 單片機(jī)最小系統(tǒng) 圖 單片機(jī)最小系統(tǒng)
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