基于單片機(jī)函數(shù)發(fā)生器系統(tǒng)設(shè)計(jì)論文

沈陽航空航天大學(xué)北方科技學(xué)院畢業(yè)設(shè)計(jì)（論文）結(jié)束語在本次設(shè)計(jì)的過程中，我學(xué)會了怎樣把所學(xué)的書本知識應(yīng)用于實(shí)踐中去，并學(xué)會了如何去思考整個(gè)控制系統(tǒng)的軟硬件設(shè)計(jì)。實(shí)踐過程中我遇到了一些困難，但在解決問題的過程中，我學(xué)會了怎樣發(fā)現(xiàn)問題、分析問題，進(jìn)而解決問題。此次畢業(yè)設(shè)計(jì)，使我不僅對單片機(jī)這門課程有了更深刻的認(rèn)識，懂得了如何運(yùn)用課本知識結(jié)合實(shí)際來完成定時(shí)器的顯示和編程方法以及顯示電路的驅(qū)動方法，使我能夠很快的適應(yīng)現(xiàn)代控制技術(shù)發(fā)展的需求，同時(shí)也提高了我的思維能力和實(shí)際操作能力，為以后更好的走上工作崗位奠定了堅(jiān)實(shí)的基礎(chǔ)。致謝本設(shè)計(jì)在指導(dǎo)老師的悉心指導(dǎo)和嚴(yán)格要求下已完成本次設(shè)計(jì)，從課題選擇、方案論證到具體設(shè)計(jì)和調(diào)試，無不凝聚著老師的心血和汗水，老師在我做畢業(yè)設(shè)計(jì)的每個(gè)階段，都給予我耐心的指導(dǎo)和幫助?？梢哉f，沒有老師的耐心指導(dǎo)和幫助，我是不可能順利完成我的畢業(yè)設(shè)計(jì)的。另外，老師嚴(yán)謹(jǐn)?shù)闹螌W(xué)態(tài)度以及對待學(xué)生極端負(fù)責(zé)的精神，給我留下很深的印象，并將積極影響我今后的學(xué)習(xí)和工作。在四年的本科學(xué)習(xí)和生活期間，也始終感受著導(dǎo)師的精心指導(dǎo)和無私的關(guān)懷，我受益匪淺。在此向老師表示深深的感謝和崇高的敬意。四年寒窗，所收獲的不僅僅是愈加豐厚的知識，更重要的是在閱讀、實(shí)踐中所培養(yǎng)的思維方式、表達(dá)能力和廣闊視野。很慶幸這四年來我遇到了如此多的良師益友，無論在學(xué)習(xí)上、生活上，還是工作上，都給予了我無私的幫助和熱心的照顧，讓我在一個(gè)充滿溫馨的環(huán)境中度過四年的大學(xué)生活。感恩之情難以用言語量度，謹(jǐn)以最樸實(shí)的話語致以最崇高的敬意。參考文獻(xiàn)[1]賈金玲等.單片機(jī)原理及應(yīng)用．成都：電子科技大學(xué)出版社，2004[2]胡漢才.單片機(jī)原理及其接口技術(shù)．北京：清華大學(xué)出版社，2004[3]張毅剛.MCS-51單片機(jī)原理及應(yīng)用．哈爾濱：哈爾濱工業(yè)大學(xué)出版社，1990[4]潘新民.單片機(jī)實(shí)用系統(tǒng)．北京：人民郵政出版社，2001[5]胡漢才.主編單片機(jī)原理及其接口技術(shù)清華大學(xué)出版社，1996.[6]靳桅等.基于51系列單片機(jī)的LED顯示屏開發(fā)技術(shù)[M]．北京:北京航空航天大學(xué)出版社，2009[7]蔣輝平.基于Proteus的單片機(jī)系統(tǒng)設(shè)計(jì)與仿真實(shí)例[M].北京:機(jī)械工業(yè)出版社，2009[8]周潤景.PROTEUS入門實(shí)用教程[M].北京:機(jī)械工業(yè)出版社，2007.[9]胡漢才.單片機(jī)原理及其接口技術(shù)[M].2版.北京:清華大學(xué)出版社，2004.[10]徐愛鈞.8051單片機(jī)實(shí)踐教程[M].北京:電子工業(yè)出版社，2005.[11]張義和.例說51單片機(jī):C語言版[M].北京:人民郵電出版社,2008[12]趙建領(lǐng).51系列單片機(jī)開發(fā)寶典[M].北京:電子工業(yè)出版社，2007[13]趙建領(lǐng).Protel電路設(shè)計(jì)與制版寶典[M].北京:電子工業(yè)出版社，2007[14]趙建領(lǐng).Protel99SE設(shè)計(jì)寶典[M].北京:電子工業(yè)出版社，2007[15]江志紅.51單片機(jī)技術(shù)與應(yīng)用系統(tǒng)開發(fā)案例精選[M].北京:電子工業(yè)出版社，2007附錄Ⅰ電路圖附錄Ⅱ?qū)嵨飯D附錄Ⅲ系統(tǒng)元件清單元器件名稱型號個(gè)數(shù)51單片機(jī)AT89C521數(shù)模轉(zhuǎn)換芯片DAC08321運(yùn)放LM3241晶振11.0592MHz1電阻4701電阻1k4電阻10k8排阻10k1獨(dú)石電容30p2鋁電解電容470u2鋁電解電容220u1鋁電解電容10u1附錄Ⅳ主控單片機(jī)程序清單 #include<reg52.h>#defineLCDLCDDisp_Off0x3e#defineLCDLCDDisp_On0x3f#definePage_Add0xb8//頁地址#defineLCDCol_Add0x40//列地址#defineStart_Line0xC0//行地址/*****液晶顯示器的端口定義*****/#definedata_oraP0/*液晶數(shù)據(jù)總線*/sbitLCDMcs=P2^1;/*片選1*/sbitLCDScs=P2^2;/*片選2*/sbitRESET=P2^3;/*復(fù)位信號*/sbitLCDDi=P2^4;/*數(shù)據(jù)/指令選擇*/sbitLCDRW=P2^5;/*讀/寫選擇*/sbitLCDEnable=P2^6;/*讀/寫使能*/#defineucharunsignedchar#defineuintunsignedintuchari,sqar_num=128;ucharcho=0;//0：正弦波。1：方波。2：三角波。3：鋸齒波。ucharnum=0;ucharTIME0_H=255,TIME0_L=176;//定時(shí)器0的初值設(shè)置；全局變量.對應(yīng)正弦波，鋸齒波50HZsbitkey=P3^4;ucharx1=0,x2=0;sbitcs=P3^7; //DAC0832控制ucharFREQ=30;//初始化頻率,30HZucharflag1;ucharg=3,d=0;/*源文件/文字:F:\LD測試儀\液晶\字模提取+排版軟件\液晶字模提取\圖例\wo.bmp寬×高（像素）:16×字模格式/大小:單色點(diǎn)陣液晶字模，縱向取模，字節(jié)倒序/32字節(jié)數(shù)據(jù)轉(zhuǎn)換日期:2010-7-2817:10:17*/ucharcodeBozi[]={0x10,0x04,0x60,0x04,0x02,0x7C,0x0C,0x03,0xC0,0x80,0x00,0x60,0xF8,0x1F,0x88,0x80,0x88,0x43,0x88,0x2C,0xFF,0x10,0x88,0x28,0x88,0x46,0xA8,0x81,0x18,0x80,0x00,0x00//波};ucharcodeFangzi[]={0x08,0x00,0x08,0x80,0x08,0x40,0x08,0x20,0x08,0x18,0xF8,0x07,0x89,0x00,0x8E,0x00,0x88,0x40,0x88,0x80,0x88,0x40,0x88,0x3F,0x08,0x00,0x08,0x00,0x08,0x00,0x00,0x00//方};ucharcodeJiaozi[]={0x20,0x80,0x10,0x60,0xE8,0x1F,0x24,0x09,0x27,0x09,0x24,0x09,0x24,0x09,0xE4,0x7F,0x24,0x09,0x34,0x09,0x2C,0x49,0x20,0x89,0xE0,0x7F,0x00,0x00,0x00,0x00,0x00,0x00//角};ucharcodeSanzi[]={0x00,0x20,0x04,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x84,0x20,0x04,0x20,0x00,0x20,0x00,0x00//三};ucharcodeZhengzi[]={0x00,0x40,0x02,0x40,0x02,0x40,0xC2,0x7F,0x02,0x40,0x02,0x40,0x02,0x40,0xFE,0x7F,0x82,0x40,0x82,0x40,0x82,0x40,0x82,0x40,0x82,0x40,0x02,0x40,0x00,0x40,0x00,0x00//正};ucharcodeXianzi[]={0x02,0x00,0xE2,0x43,0x22,0x82,0x22,0x42,0x3E,0x3E,0x00,0x00,0x08,0x21,0x88,0x71,0x48,0x29,0x39,0x25,0x0E,0x23,0x08,0x21,0xC8,0x28,0x08,0x70,0x08,0x00,0x00,0x00//弦};ucharcodeChizi[]={0x40,0x00,0x40,0x00,0x40,0x7F,0x7C,0x40,0x40,0x50,0x40,0x48,0x40,0x44,0x7F,0x43,0x44,0x44,0x44,0x48,0x44,0x50,0x44,0x40,0x44,0xFF,0x40,0x00,0x40,0x00,0x00,0x00//齒};ucharcodeJvzi[]={0x40,0x01,0x30,0x01,0xEF,0x7F,0x24,0x21,0x24,0x91,0x00,0x60,0xFE,0x1F,0x92,0x00,0x92,0xFC,0x92,0x44,0xF2,0x47,0x92,0x44,0x92,0x44,0x9E,0xFC,0x80,0x00,0x00,0x00//鋸};ucharcodeLing[]={0x00,0x00,0xE0,0x0F,0x10,0x10,0x08,0x20,0x08,0x20,0x10,0x10,0xE0,0x0F,0x00,0x00//0};ucharcodeYi[]={0x00,0x00,0x10,0x20,0x10,0x20,0xF8,0x3F,0x00,0x20,0x00,0x20,0x00,0x00,0x00,0x00//1};ucharcodeEr[]={0x00,0x00,0x70,0x30,0x08,0x28,0x08,0x24,0x08,0x22,0x88,0x21,0x70,0x30,0x00,0x00//2};ucharcodeSa[]={0x00,0x00,0x30,0x18,0x08,0x20,0x88,0x20,0x88,0x20,0x48,0x11,0x30,0x0E,0x00,0x00//3};ucharcodeSi[]={0x00,0x00,0x00,0x07,0xC0,0x04,0x20,0x24,0x10,0x24,0xF8,0x3F,0x00,0x24,0x00,0x00//4};ucharcodeWu[]={0x00,0x00,0xF8,0x19,0x08,0x21,0x88,0x20,0x88,0x20,0x08,0x11,0x08,0x0E,0x00,0x00//5};ucharcodeLiu[]={0x00,0x00,0xE0,0x0F,0x10,0x11,0x88,0x20,0x88,0x20,0x18,0x11,0x00,0x0E,0x00,0x00//6};ucharcodeQ[]={0x00,0x00,0x38,0x00,0x08,0x00,0x08,0x3F,0xC8,0x00,0x38,0x00,0x08,0x00,0x00,0x00//7};ucharcodeBa[]={0x00,0x00,0x70,0x1C,0x88,0x22,0x08,0x21,0x08,0x21,0x88,0x22,0x70,0x1C,0x00,0x00//8};ucharcodeJiu[]={0x00,0x00,0xE0,0x00,0x10,0x31,0x08,0x22,0x08,0x22,0x10,0x11,0xE0,0x0F,0x00,0x00//9};ucharcodeH[]={0x08,0x20,0xF8,0x3F,0x08,0x21,0x00,0x01,0x00,0x01,0x08,0x21,0xF8,0x3F,0x08,0x20//H};ucharcodeZ[]={0x10,0x20,0x08,0x38,0x08,0x26,0x08,0x21,0xC8,0x20,0x38,0x20,0x08,0x18,0x00,0x00//Z};/****************************************************************************函數(shù)功能:LCD延時(shí)程序入口參數(shù):t出口參數(shù):****************************************************************************/voidLCDdelay(unsignedintt){ unsignedinti,j; for(i=0;i<t;i++); for(j=0;j<10;j++);}/****************************************************************************狀態(tài)檢查，LCD是否忙*****************************************************************************/voidCheckState() {unsignedchardat,DATA;//狀態(tài)信息（判斷是否忙）LCDDi=0;//數(shù)據(jù)\指令選擇，D/I（RS）="L"，表示DB7∽DB0為顯示指令數(shù)據(jù)LCDRW=1;//R/W="H"，E="H"數(shù)據(jù)被讀到DB7∽DB0do{DATA=0x00;LCDEnable=1; //EN下降源 LCDdelay(2);//延時(shí) dat=DATA;LCDEnable=0;dat=0x80&dat;//僅當(dāng)?shù)?位為0時(shí)才可操作(判別busy信號)}while(!(dat==0x00));} /*****************************************************************************函數(shù)功能:寫命令到LCD程序，RS(DI)=L,RW=L,EN=H，即來一個(gè)脈沖寫一次入口參數(shù):cmdcode出口參數(shù):*****************************************************************************/voidwrite_com(unsignedcharcmdcode){CheckState();//檢測LCD是否忙 LCDDi=0; LCDRW=0; P0=cmdcode; LCDdelay(2); LCDEnable=1; LCDdelay(2); LCDEnable=0;} /*****************************************************************************函數(shù)功能:LCD初始化程序入口參數(shù):出口參數(shù):*****************************************************************************/voidinit_lcd(){ LCDdelay(100); LCDMcs=1;//剛開始關(guān)閉兩屏 LCDScs=1; LCDdelay(100); write_com(LCDLCDDisp_Off); //寫初始化命令 write_com(Page_Add+0); write_com(Start_Line+0); write_com(LCDCol_Add+0); write_com(LCDLCDDisp_On);} /*****************************************************************************函數(shù)功能:寫數(shù)據(jù)到LCD程序，RS(DI)=H,RW=L,EN=H，即來一個(gè)脈沖寫一次入口參數(shù):LCDDispdata出口參數(shù):*****************************************************************************/voidwrite_data(unsignedcharLCDDispdata){CheckState();//檢測LCD是否忙 LCDDi=1; LCDRW=0; P0=LCDDispdata; LCDdelay(2); LCDEnable=1; LCDdelay(2); LCDEnable=0;} /*****************************************************************************函數(shù)功能:清除LCD內(nèi)存程序入口參數(shù):pag,col,hzk出口參數(shù):*****************************************************************************/voidClr_Scr(){ unsignedcharj,k; LCDMcs=0;//左、右屏均開顯示 LCDScs=0; write_com(Page_Add+0); write_com(LCDCol_Add+0); for(k=0;k<8;k++)//控制頁數(shù)0-7，共8頁 { write_com(Page_Add+k);//每頁每頁進(jìn)行寫 for(j=0;j<64;j++)//每頁最多可寫32個(gè)中文文字或64個(gè)ASCII字符 { write_com(LCDCol_Add+j); write_data(0x00);//控制列數(shù)0-63，共64列，寫點(diǎn)內(nèi)容，列地址自動加1 } }} /*****************************************************************************函數(shù)功能:指定位置顯示漢字16*16程序入口參數(shù):page,column,hzk出口參數(shù):*****************************************************************************/voidhz_LCDDisp16(unsignedcharpage,unsignedcharcolumn,unsignedcharcount,unsignedcharcode*hzk){ unsignedcharj=0,i=0; write_com(Page_Add+page); write_com(LCDCol_Add+column); for(i=0;i<count;i++)write_data(hzk[i*2]); write_com(Page_Add+page+1); write_com(LCDCol_Add+column); for(i=0;i<count;i++) write_data(hzk[1+i*2]); }/* voiddelay(unsignedintms){ uinti,j; for(j=0;j<ms;j++) for(i=0;i<120;i++);}*/ucharcodesin_num[]={0x80,0x82,0x85,0x88,0x8b,0x8e,0x91,0x94,0x97,0x9a,0x9d,0xa0,0xa3,0xa6, 0xa9,0xac,0xaf,0xb2,0xb6,0xb9,0xbc,0xbf,0xc2,0xc5,0xc7,0xca,0xcc,0xcf, 0xd1,0xd4,0xd6,0xd8,0xda,0xdd,0xdf,0xe1,0xe3,0xe5,0xe7,0xe9,0xea,0xec, 0xee,0xef,0xf1,0xf2,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd, 0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff, 0xfe,0xfd,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf2,0xf1, 0xef,0xee,0xec,0xea,0xe9,0xe7,0xe5,0xe3,0xe1,0xde,0xdd,0xda,0xd8,0xd6, 0xd4,0xd1,0xcf,0xcc,0xca,0xc7,0xc5,0xc2,0xbf,0xbc,0xba,0xb7,0xb4,0xb1, 0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,0x99,0x96,0x93,0x90,0x8d,0x89,0x86, 0x83,0x80, 0x80,0x7c,0x79,0x76,0x72,0x6f,0x6c,0x69,0x66,0x63,0x60,0x5d, 0x5a,0x57,0x55,0x51,0x4e,0x4c,0x48,0x45,0x43,0x40,0x3d,0x3a,0x38,0x35, 0x33,0x30,0x2e,0x2b,0x29,0x27,0x25,0x22,0x20,0x1e,0x1c,0x1a,0x18,0x16, 0x15,0x13,0x11,0x10,0x0e,0x0d,0x0b,0x0a,0x09,0x08,0x07,0x06,0x05,0x04, 0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b, 0x0d,0x0e,0x10,0x11,0x13,0x15,0x16,0x18,0x1a,0x1c,0x1e,0x20,0x22,0x25, 0x27,0x29,0x2b,0x2e,0x30,0x33,0x35,0x38,0x3a,0x3d,0x40,0x43,0x45,0x48, 0x4c,0x4e,0x51,0x55,0x57,0x5a,0x5d,0x60,0x63,0x66,0x69,0x6c,0x6f,0x72, 0x76,0x79,0x7c,0x80 /* 135,145,158,167,176,188,199,209,218,226,234,240,245,249,252,254,254,253,251,247,243,237,230,222,213,204,193,182,170,158,146,133,121,108,96,84,72,61,50,41,32,24,17,11,7,3,1,0,0,2,5,9,14,20,28,36,45,55,66,78,90,102,114,128*/};ucharcodesanjiao_num[]={ 0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52, 54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102, 104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136,138,140, 142,144,146,148,150,152,154,158,160,162,164,166,168,170,172,174,176,178,180, 182,184,186,188,190,192,194,196,198,200,202,204,206,208,210,212,214,216,218, 220,222,224,226,228,230,232,234,236,238,240,242,244,246,248,250,252,254,255, 254,252,250,248,246,244,242,240,238,236,234,232,230,228,226,224,222,220,218, 216,214,212,210,208,206,204,202,200,198,196,194,192,190,188,186,184,182,180, 178,176,174,172,170,168,166,164,162,160,158,154,152,150,148,146,144,142,140, 138,136,134,132,130,128,126,124,122,120,118,116,114,112,110,108,106,104,102, 100,98,96,94,92,90,88,86,84,82,80,78,76,74,72,70,68,66,64,62,60,58,56,54,52, 50,48,46,44,42,40,38,36,34,32,30,28,26,24,22,20,18,16,14,12,10,8,6,4,2,0,};//波形發(fā)生函數(shù)voidsint(void){cs=0;P1=sin_num[num++];cs=1;}voidsquare(void){if(i++<sqar_num){cs=0;P1=0XFF;cs=1;} else{cs=0;P1=0X00;cs=1;}}voidtriangle(void){cs=0;P1=num++;cs=1;}voidstw(void){ cs=0;P1=sanjiao_num[num++];cs=1;}voidmain(){ init_lcd(); Clr_Scr();TMOD=0X01;TH0=0xff;TL0=0xd9;IT0=1;//設(shè)置中斷觸發(fā)方式，下降沿EA=1;EX0=1;ET0=1;IP=0X05;//鍵盤中斷級別高 IT1=1;//設(shè)置中斷觸發(fā)方式，下降沿EX1=1; PX1=1;//鍵盤中斷級別?TR0=1;while(1){LCDMcs=0;//左屏開顯 LCDScs=1; if(cho==0) { hz_LCDDisp16(3,16,16,Zhengzi); hz_LCDDisp16(3,32,16,Xianzi); } if(cho==1) { hz_LCDDisp16(3,16,16,Fangzi); hz_LCDDisp16(3,32,16,Bozi); }if(cho==2) { hz_LCDDisp16(3,16,16,Sanzi); hz_LCDDisp16(3,32,16,Jiaozi); } if(cho==3) { hz_LCDDisp16(3,16,16,Jvzi); hz_LCDDisp16(3,32,16,Chizi); }LCDMcs=1;//右屏開顯 LCDScs=0; hz_LCDDisp16(3,24,8,H);hz_LCDDisp16(3,32,8,Z);switch(g){ case0:{break;} case1:{hz_LCDDisp16(3,8,8,Yi);break;} case2:{hz_LCDDisp16(3,8,8,Er);break;}case3:{hz_LCDDisp16(3,8,8,Sa);break;} case4:{hz_LCDDisp16(3,8,8,Si);break;} case5:{hz_LCDDisp16(3,8,8,Wu);break;} case6:{hz_LCDDisp16(3,8,8,Liu);break;} case7:{hz_LCDDisp16(3,8,8,Q);break;} case8:{hz_LCDDisp16(3,8,8,Ba);break;} case9:{hz_LCD