課程設(shè)計(jì)-基于89c51單片機(jī)的數(shù)字溫度計(jì)設(shè)計(jì)-wenkub.com
2025-06-03 08:05 本頁(yè)面
【正文】 s not needed. Instead, he plans to deploy 單片機(jī)原理及系統(tǒng)課程設(shè)計(jì)報(bào)告 20 his 270squarefoot (25squaremeter) main chute at an altitude of around 5,000 feet (1,524 meters). In order to deploy this chute successfully, he will have to slow to 172 mph (277 kph). He will have a reserve parachute that will open automatically if he loses consciousness at mach speeds. Even if everything goes as planned, it won39。t start planning... Those years, those days of do, finally, like youth, will end in our life. 此刻，天空是陰暗的，空氣里有著剛下過雨之后的清 新因子。 At the moment, the sky is dark, the air is fresh factor after just rained. Suddenly thought of blue plaid shirt。想要的，不想要的，界限明確，好像沒有什么可以撼動(dòng)自己。t remember his appearance. 童年時(shí)，覺得壓歲錢和新衣服是過年必備，但是隨著年齡的推進(jìn)，會(huì)越來(lái)越發(fā)現(xiàn)，那些東西根本就可有可無(wú)；初中時(shí)，以為要有一場(chǎng)暗戀才意味著真正的成長(zhǎng)，但三年過去后，自己心平氣和的寫同學(xué)錄的時(shí)候，突然就發(fā)現(xiàn)是不是真正的成長(zhǎng)了，好像并沒有那么重要了；然后到了高中，覺得非要吐露出自己的心聲才能為高中生涯里的懵懂情愫劃上一個(gè)句點(diǎn)，但畢業(yè)晚會(huì)的時(shí)候最終還是被梗塞在了 咽喉，后來(lái)再次站在他曾經(jīng)揮汗如雨的球場(chǎng)，看著他投過籃球的球框時(shí)，突然間發(fā)現(xiàn)自己已經(jīng)想不起他的容顏。 Junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isn39?；蛟S是愧疚于自己似乎把轉(zhuǎn)瞬即逝的很多個(gè)不同的日子過成了同一天的樣子；或許是追溯過去，對(duì)自己那些近乎偏執(zhí)的怪異信念的醒悟，這些天以來(lái)，思緒一直很凌亂，在腦海中不斷糾纏。s governing body, has also ordered an immediate investigation into the referee39。s 150th anniversary celebrations and will attend City39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. 單片機(jī)原理及系統(tǒng)課程設(shè)計(jì)報(bào)告 17 If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed under Further help. If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as a damagesbased agreement. In England and Wales, your solicitor can39。 //顯示溫度的小數(shù)部分 display_minus()。 //溫度值低位 取反 TN=(TH*256+TL+1)/16。 //顯示溫度的整數(shù)部分 display_temp2(TD)。 //接著讀的是溫度值高位 if(THamp。 //顯示溫度的小數(shù)點(diǎn) display_cent()。 //延時(shí) 5ms 給硬件一點(diǎn)反應(yīng)時(shí)間 if(Init_DS18B20()==1) display_error()。 //儲(chǔ)存暫存器的溫度高位 unsigned char TN。 //將 DS18B20 初始化 WriteOneChar(0xCC)。 // 啟動(dòng)溫度轉(zhuǎn)換 for(time=0。 delaynms(50)。 n=x%10。 //將十位數(shù)字的字符常量寫入 LCD WriteData(digit[l])。 //取十位 l=x%10。 //指向下一個(gè)字符 delaynms(50)。 //從第一個(gè)字符開始顯示 while(Cent[i] != 39。 //將小數(shù)點(diǎn)的字符常量寫入 LCD delaynms(50)。 (void) { WriteAddress(0x45)。.39。 //將字符常量寫入 LCD i++。 //寫顯示地址，將在第 2 行第 1 列開始顯示 i = 0。 //將字符常量寫入 LCD i++。 //寫顯示地址，將在第 1 行第 1 列開始顯示 i = 0。 //指向下一個(gè)字符 delaynms(100)。 //從第一個(gè)字符開始顯示 while(Error[i] != 39。time++)。time++)。time++) 。 //將數(shù)據(jù)線從高拉低時(shí) 即啟動(dòng)寫時(shí)序 DQ=datamp。 i8。time++)。//延時(shí)約 6us，使主機(jī)在 15us 內(nèi)采樣 if(DQ==1) dat|=0x80。 //等待一個(gè)機(jī)器周期 DQ = 1。 // 先將數(shù)據(jù)線拉高 _nop_()。 unsigned char dat。time200。time10。time200。time2。 unsigned char time。 //顯示模式設(shè)置：光標(biāo)右移，字符不移 delaynms(5)。 //連續(xù)三次，確保初始化成功 delaynms(5)。 //設(shè)置 模式： 162 顯示， 57 點(diǎn)陣， 8 位數(shù)據(jù)接 delaynms(5)。 _nop_()。 //空操作四個(gè)機(jī)器周期，給硬件反應(yīng)時(shí)間 單片機(jī)原理及系統(tǒng)課程設(shè)計(jì)報(bào)告 11 E=1。 //將數(shù)據(jù)送入 P0 口，即將數(shù)據(jù)寫入液晶模塊 _nop_()。 //液晶塊是否忙碌 RS=1。 _nop_()。 //空操作四個(gè)機(jī)器周期，給硬件反應(yīng)時(shí)間 E=1。 //將數(shù)據(jù)送入 P0 口，即寫入指令或地址 _nop_()。 E=0。 //將 E 恢復(fù)低電平 return result。 _nop_()。 //根據(jù)規(guī)定， RS 為低電平， RW 為高電平時(shí)，可以讀狀態(tài) RW=1。i++)。j++)。i10。 //讀寫選擇位，將 RW 位定義為 引腳 sbit E=P2^2。 //說明沒有檢測(cè)到 unsigned char code Temp[]={Temp:}。就拿這次來(lái)說 DS18B20 溫度傳感器和單片機(jī)的通信就需要嚴(yán)格
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