【正文】 177。另外，瓷片電容的實(shí)際焊接距離不應(yīng)該離單片機(jī)太遠(yuǎn)否則誤差較大。本系統(tǒng)采用聲音指示。鬧鐘電路是用比較器來(lái)比較計(jì)時(shí)系統(tǒng)和定時(shí)系統(tǒng)的輸出狀態(tài)，如果計(jì)時(shí)系統(tǒng)和定時(shí)系統(tǒng)的輸出狀態(tài)相同，則發(fā)出一個(gè)脈沖信號(hào)，再和一個(gè)高頻信號(hào)混合，送到放大電路驅(qū)動(dòng)揚(yáng)聲器發(fā)聲，從而實(shí)現(xiàn)定時(shí)鬧響的功能。時(shí)間正常顯示時(shí)，LED每閃動(dòng)60次，分鐘自動(dòng)加一；每六十分鐘小時(shí)自動(dòng)加一；每24小時(shí)天自動(dòng)加一。比較容易理解。如果要修改鬧鈴時(shí)間，可以依次進(jìn)入調(diào)節(jié)模式4進(jìn)行修改。當(dāng)設(shè)定時(shí)間與當(dāng)前時(shí)間一致時(shí)，則鬧鐘自動(dòng)鬧鈴進(jìn)行提示，同時(shí)二極管閃亮一分鐘后，自動(dòng)退出響鈴狀態(tài)，若按K3鍵，鬧鐘退出響鈴狀態(tài)。當(dāng)環(huán)境溫度改變時(shí)，顯示出來(lái)的溫度也會(huì)隨著改變。許多子函數(shù)都可以直接移植過(guò)去。如圖32所示： 圖32三個(gè)調(diào)節(jié)按鈕開(kāi)始程序仿真時(shí)，進(jìn)入的是設(shè)定好的模式0 ： 圖33模式0按下mode 按鍵，則進(jìn)入模式1：進(jìn)入修改時(shí)間，此時(shí)修改分鐘按INC 按鍵，修改小時(shí)按DEC按鍵： 圖34模式1再次按下mode按鍵，則進(jìn)入模式2：選擇要修改的鬧鈴，此處顯示的是第2個(gè)鬧鈴，可以按inc 按鍵加，也可以按下dec按鍵減： 圖35模式2再次按下mode 按鍵，則進(jìn)入模式3：修改選定的鬧鈴的分鐘此時(shí)修改的是鬧鈴的分鐘，inc 按鍵加，dec 按鍵減： 圖36模式3再次按下mode按鍵，則進(jìn)入模式4：修改選定的鬧鈴的小時(shí)此時(shí)修改的是鬧鈴的小時(shí)，inc 按鍵加，dec 按鍵減： 圖37模式4再次按下mode按鍵，則回到模式0：正常工作狀態(tài)： 圖38 返回模式0 四 課程設(shè)計(jì)心得此次課程設(shè)計(jì)為期三個(gè)星期，我們從中獲益匪淺。從討論、確定方案、設(shè)計(jì)原理圖、仿真的過(guò)程中，我們學(xué)到了很多，這對(duì)我們來(lái)說(shuō)是一次將課本所學(xué)知識(shí)應(yīng)用到具體實(shí)踐中的一次考驗(yàn)。我們通過(guò)查閱資料、同學(xué)的幫助，最終基本解決這些問(wèn)題，從而基本完成了課程設(shè)計(jì)的要求。此次課程設(shè)計(jì)，也使我們發(fā)現(xiàn)了自己的缺點(diǎn)，課本所學(xué)知識(shí)與實(shí)踐是有一定距離的，我們不僅要學(xué)好科學(xué)文化知識(shí)，更要積極的參與實(shí)踐學(xué)習(xí)，真樣才能有更大的收獲，真正學(xué)到知識(shí)，要把理論與實(shí)際相結(jié)合，從而成為真正有用的人。—北京：北京航空航天大學(xué)出版社， ISBN 781077736X[3]、單片機(jī)微型計(jì)算機(jī)技術(shù)/劉國(guó)榮等編著?！L(zhǎng)沙： (高等院校培養(yǎng)應(yīng)用型人才電子技術(shù)類(lèi)課程規(guī)劃教材) ISBN 9877811058321[5]、陳光東,《單片微型計(jì)算機(jī)原理與接口技術(shù)》 華中科技大學(xué)出版社出版1999 [6]、何立民，MCS51系列單片機(jī)應(yīng)用系統(tǒng)設(shè)計(jì)系統(tǒng)配置與接口技術(shù)， 北京航空航天大學(xué)出版社，2001 [7]、李建忠，單片機(jī)原理及應(yīng)用，西安電子科技大學(xué)出版社，2002 [8]、潘永雄，： [9]、胡汗才編 《單片機(jī)原理及其接口技術(shù)》 清華大學(xué)出版社出版 1996 [10]、 Mano 《Digital Design》(Third Edition) Higher Education Press ，2002.六 附錄附錄一：原理圖附錄二：程序源代碼/**************************************************************************名稱(chēng)：作息時(shí)間控制控制器的設(shè)計(jì)程序，基于AT89C51單片機(jī)，用lcd12864顯示內(nèi)容：三個(gè)按鍵:mode(模式)、inc(增加)、dec(減少) 一個(gè)LCD12864顯示 一個(gè)DS18B20數(shù)字溫度計(jì)和一個(gè)聲音播放器SOUNDER日期：2012127編寫(xiě)：ZMY**************************************************************************/includeincludedefine LCD P0sbit DQ=P3^7。 //小數(shù)點(diǎn)控制I0sbit mode=P1^0。 //kye2 時(shí)sbit dec=P1^2。 //蜂鳴器接口sbit E=P2^0。sbit RS=P2^2。sbit CS2=P2^3。unsigned char a,i,j,k。 //用于表示溫度unsigned int realtemp。 //正負(fù)標(biāo)志位unsigned char fu。 //用于表示時(shí)間unsigned char mode_value=0 ,xf。 //用于表示日期unsigned char h1,h2,f1,f2,s1,s2=0。d1,d2。 //用于定時(shí)鬧鈴unsigned char code zi[28][16]={{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},{0x00,0x00,0xFF,0x44,0x29,0x19,0x27,0x49,0x89,0x89,0xFF,0x89,0x89,0xCD,0x49,0x00},{0x00,0xFC,0x84,0x84,0x84,0xFE,0x14,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x00}, /*時(shí)，2*/{0x00,0x3F,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x23,0x40,0x80,0x7F,0x00,0x00,0x00},{0x00,0x80,0x40,0x20,0x98,0x86,0x80,0x80,0x83,0x8C,0x90,0x20,0xC0,0x80,0x80,0x00}, /*分，3*/ {0x01,0x00,0x80,0x40,0x20,0x1F,0x00,0x40,0x80,0x40,0x3F,0x00,0x00,0x01,0x00,0x00}, {0x20,0x24,0x24,0xA4,0xFE,0xA3,0x22,0x80, 0x70,0x00,0xFF,0x00,0x10,0x20,0x60,0x00},/*秒，4*/{0x10,0x08,0x06,0x01,0xFF,0x00,0x81,0x80,0x40,0x20,0x17,0x08,0x04,0x03,0x00,0x00},{0x10,0x10,0xD0,0xFF,0x94,0x14,0xE4,0xBF, 0xA4,0xA4,0xA4,0xBF,0xF4,0x26,0x04,0x00}, /*模，5*/ {0x04,0x03,0x00,0xFF,0x08,0x89,0x8B,0x4A, 0x2A,0x1E,0x2A,0x2A,0x4B,0xC8,0x48,0x00},{0x10,0x10,0x91,0xD6,0xB0,0x10,0xFE,0x82,0x82,0x82,0x82,0x82,0xFF,0x02,0x00,0x00}, /* 祝,6*/{0x02,0x01,0x00,0xFF,0x80,0x41,0x21,0x18,0x07,0x00,0x3F,0x40,0x41,0x40,0x70,0x00},{0x40,0x20,0xF8,0x07,0x40,0x20,0x18,0x0F,0x08,0xC8,0x08,0x08,0x28,0x18,0x00,0x00}, /*“你”，7*/{0x00,0x00,0xFF,0x00,0x00,0x08,0x04,0x43,0x80,0x7F,0x00,0x01,0x06,0x0C,0x00,0x00},{0x80,0x70,0x00,0xFF,0x10,0x20,0x10,0x10,0xFF,0x10,0x10,0x10,0xF8,0x10,0x00,0x00}, /*“快”，8*/{0x00,0x00,0x00,0xFF,0x82,0x42,0x22,0x1A,0x07,0x0A,0x12,0x22,0x43,0xC2,0x42,0x00},{0x00,0x80,0xC0,0xBC,0x84,0x84,0x84,0xF4,0x82,0x82,0x83,0x82,0x80,0xC0,0x80,0x00},/*”樂(lè)“，9*/{0x00,0x40,0x20,0x10,0x0C,0x40,0x80,0x7F,0x00,0x00,0x04,0x08,0x30,0x60,0x00,0x00},{0x40,0x20,0xF8,0x07,0xF0,0xA0,0x90,0x4F,0x54,0x24,0xD4,0x4C,0x84,0x80,0x80,0x00}, /*“修”，10*/{0x00,0x00,0xFF,0x00,0x0F,0x80,0x92,0x52,0x49,0x25,0x24,0x12,0x08,0x00,0x00,0x00},{0x04,0xC4,0x44,0x44,0x44,0xFE,0x44,0x20,0xDF,0x10,0x10,0x10,0xF0,0x18,0x10,0x00}, /*“改”，11*/{0x00,0x7F,0x20,0x20,0x10,0x90,0x80,0x40,0x21,0x16,0x08,0x16,0x61,0xC0,0x40,0x00},{0x00,0xFC,0x84,0x84,0x84,0xFE,0x14,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x00},/*時(shí) ，12*/{0x00,0x3F,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x23,0x40,0x80,0x7F,0x00,0x00,0x00},{0x00,0xF8,0x01,0x02,0xF6,0x10,0x12,0x12,0x12,0x12,0xFA,0x12,0x02,0xFF,0x02,0x00}, /*間，13*/{0x00,0xFF,0x00,0x00,0x3F,0x11,0x11,0x11,0x11,0x11,0x3F,0x40,0x80,0x7F,0x00,0x00}, }。//學(xué)號(hào)碼 unsigned char code shu[20][8]={{0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00},{0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00},/*0,0*/{0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00},{0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00},/*1,1*/{0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00},{0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00},/*2,2*/{0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00},{0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00},/*3,3*/{0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00},{0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00},/*4,4*/