【正文】 dense air closer to Earth. But this will not be enough to stop him pletely. If he goes too fast or spins out of control, he has a stabilization parachute that can be deployed to slow him down. His team hopes it39。突然想到那件藍(lán)格子襯衫；那些被折成各種各樣形狀的信紙；那段從街角深巷伊始的友誼；還有那場(chǎng)還沒有開始就宣告了終結(jié)的邂逅計(jì)劃 …… 那些年那些天的非做不可，終于和青春一樣，都將在我們的人生中謝幕。 Have declared the end of the encounter that haven39。 Those were broken into various shapes of stationery。那些曾經(jīng)所謂的非做不可，只是青蔥年華里自己給自己注射的一支強(qiáng)心劑，或者說，是自以為是的精神寄托罷了。也曾經(jīng)好像已經(jīng)下定了決心去做某件事，但更多的時(shí)候是最后又打起了退堂鼓。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 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 32 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。 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。t want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already can39。t really grow up, it seems is not so important。 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。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。 May be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. Always feel oneself should go to do something, or write something. Twenty years of life trajectory deeply shallow, suddenly feel something, do it. 一字開頭的年齡已經(jīng)到了尾聲。s actions. CSKA said they were surprised and disappointed by Toure39。s 21 win. Michel Platini, president of European football39。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。s antiracism taskforce, is in London for the Football Association39。t charge you more than 35% of your pensation if you win the case. If you are thinking about signing up for a damagesbased agreement, you should make sure you39。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。 TL0=0。 } } // 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 30 //定時(shí)器 0的中斷函 數(shù) // void Time(void) interrupt 1 { COUNT++。 TL0=0。 } }else { Flag=1。 if(m==5) { m=0。 COUNT=0。 TH0=0。 } // //外部中斷 0的中斷函數(shù) // void INT(void) interrupt 0 { if(Flag) { static unsigned char m=0。 if(dat9999)dat=9999。 avg=60000000/sum。i++) { sum+=T[i]*W[i]。 for(i=0。 float avg。 uint dat。 IT0=1。 EX0=1。i++) { Write_Datas(0x42+i,dd[i])。 for(i=0。 dd[2]=d%1000%100/10。 dd[0]=d/1000。 write_data(0x30+Wdata)。//清屏 write_cmd(0x80)。//整體顯示 ,關(guān)光標(biāo) ,不閃爍 write_cmd(0x06)。 write_cmd(0x38)。 E=0。 E=1。 P1=date。 } void write_data(uchar date)//寫數(shù)據(jù)子程序 { RS=1。 delay(1)。 delay(1)。 RW=0。y)。x) for(y=110。 for(x=N。 } LCD_Disp(dis_dat)。 }else { LED=1。 } if(dis_dat8000) { LED=0。 } while(1) { if(Flag_s) { dis_dat=Smooth()。i14。 } write_cmd(0x80+0x40)。i14。 write_cmd(0x80)。 LCD_Init()。 dis_dat=0。 Flag_s=0。 uint i,dis_dat。 // // 主函數(shù) // void main(void) { 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 25 uchar msg1[14]=Current Rev is。 void LCD_Disp(uint d)。 void write_data(uchar date)。 void delay(uint N)。 //權(quán)值 void Init(void)。 //溢出次數(shù) unsigned long T[5]。 sbit RS=P2^7。 //轉(zhuǎn)換標(biāo)志 sbit E=P2^5。 bit Flag。 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 16 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 17 結(jié)論 致謝 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 18 參考文獻(xiàn) [1] 徐崢穎 編著 .Protel99SE EDA 技術(shù)及應(yīng)用 [M].北京：機(jī)械工業(yè)出版社， 2021. [2] 張靖武編著 .單片機(jī)系統(tǒng)的 protues 設(shè)計(jì)與仿真 [M].北京：電子工業(yè)出版社， 2021. [3] 李朝青編著 .單片機(jī)原理及接口技術(shù) [M].北京：北京航空航天大學(xué)出版社， 2021. [4] 邊春遠(yuǎn)編著 .MCS51單片機(jī)應(yīng)用開發(fā)實(shí)用子程序 [M].北京：人民郵電出版社， 2021. [5] 劉守義編著 .單片機(jī)應(yīng)用技術(shù) [M].西安：西安電子科技大學(xué)出版社， 2021. [6] 韓志軍編著 .單片機(jī)應(yīng)用系統(tǒng)設(shè)計(jì) [M].北京：機(jī)械工業(yè)出版社， 2021. [7] 張毅剛，劉喜元 編著 .新編 MCS51單片機(jī)應(yīng)用設(shè)計(jì) [M].哈爾濱：哈爾濱工業(yè)大學(xué)出版社， 2021. [8] 唐嵐編著 .汽車測(cè)試技術(shù) [M].北京：機(jī)械工業(yè)出版社， 2021. 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 19 附錄 A：原理圖 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 20 附錄 B：程序編譯 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 21 附錄 C：仿真圖 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 22 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 23 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 24 附錄 D：程序代碼 include define uchar unsigned char define uint unsigned int sbit LED=P3^1。 發(fā)動(dòng)機(jī)轉(zhuǎn)速 電控系統(tǒng)程序設(shè)計(jì)及仿真 15 圖 仿真圖（三） 繼續(xù)調(diào)節(jié)信號(hào)發(fā)生器的頻率時(shí)直到超過設(shè)定值 8000r/min 時(shí)，電機(jī)將會(huì)轉(zhuǎn)動(dòng)，由于此為動(dòng)態(tài)效果，我們可以從三極管基極為高