基于2576的3.3V3ABUCK驱动电路板的设计

#基于驱动电路板的设计基于中文摘要ABSTRACT目录%#«刖言第一章概述 □□□□□□ □□□□□□□□□□□□□□□□□□□□□□□开关电源的研究现状………………开关电源的组成……………………开关电源的特点……………………□□□□□□ □□□□□□□□□□□□□□□□□□□□□□□□□根据开关口在电路中的连接方式分类 …………根据开关口的激励方式不同分类…………………根据使用的器件种类不同分类……………………根据稳压的控制方式不同分类…………………其他开关稳压电源…………………□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□理想的开关电路…………………整流及LC滤波器…………………输入电压U………………………i反馈控制电路……………………基本工作过程……………………第二章 电路的工作原理 LM2576□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□第三章基于的 测试板的焊接与调试□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□

□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□第四章开关电源设计 protel99se□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□PCB□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□制作PCB□□□□□□□□□□□□□□□□□□□□□□□□□□□□结论参考文献致谢附录外文资料翻译一、正文国内研究现状□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□,□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□; □□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□,□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□; □□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□,□□□□,□□□□□□□□□□□□□□□,□□□□,□□□□□□□□□□,□□□□□□□,□□□□□□□□,□□□□□□,□□□□□□,□□□□□□□,□□□□□□□□□□□□,□□□□□,□□□,□□□□□□□□□□□,□□□,□□□□□□□□□,□□□□□□□□□□□, □□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□:□□□□□□□□, 其输□□□□□□□□□,□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□?□□□□□□□□□□□□□□□□□□□,□□□□□□□□□,□□□□□□□□□□□□□□□,□□□□□□;□□□□□□□□□,□□□□□□□□□□□□□□□,□□□□□□□选题意义、目的□□□□□□□□□□□□□□□□□□□□□, □□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□, □□□□□□□□, □□□□□□□□□□□,□□□□□□□□□□□□□□□□□,□□□□□□□□,□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□,□□□□□□□□□□□□□□:.□□□□□□□□□□□, 体积更小， □□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□;.□□□□□□□□□□□□□□□□□□□□□□ PCB电路；.□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□；.□□□□□□□□□□□□□□□□□□□□□□□致谢参考文献（至少篇）样式：[1]龚尚福，[1]龚尚福，朱宇等 .微机原理及应用[M].西安：西安电子科技大学出版社，2003.[2]龚尚福.网络管理新技术探讨 [J].西安：西安科技大学学报， 2004.[1]康华光□□□□□□□□□□□□□□□ [M]□□□□□□□[2]谢运祥等译□□□□□□ [M]□□□□□□□[3]□□□□□protel2004□□□□□□ [M]□□□□□□□[4]李祥臣□□□□□□□□□□ □□□□□□□ [M]□□□□□□□□社[5][Z]头文件及宏定义区#include<reg51.h>#include<intrins.h>#defineucharunsignedchar#defineuintunsignedint*头文件及宏定义区数据及变量定义区，每年三字节codeucharyear_code[597]={ ，每年三字节0x04,0xAe,0x53, //190100x0A,0x57,0x48, //190230x55,0x26,0xBd, //190360x0d,0x26,0x50, //190490x0d,0x95,0x44, //190512TOC\o"1-5"\h\z0x46,0xAA,0xB9, //1906 150x05,0x6A,0x4d, //1907 180x09,0xAd,0x42, //1908 210x24,0xAe,0xB6, //19090x04,0xAe,0x4A, //19100x6A,0x4d,0xBe, //19110x0A,0x4d,0x52, //19120x0d,0x25,0x46, //19130x5d,0x52,0xBA, //19140x0B,0x54,0x4e, //19150x0d,0x6A,0x43, //19160x29,0x6d,0x37, //19170x09,0x5B,0x4B, //19180x74,0x9B,0xC1, //19190x04,0x97,0x54, //19200x0A,0x4B,0x48, //19210x5B,0x25,0xBC, //19220x06,0xA5,0x50, //19230x06,0xd4,0x45, //19240x4A,0xdA,0xB8, //19250x02,0xB6,0x4d, //19260x09,0x57,0x42, //19270x24,0x97,0xB7, //19280x04,0x97,0x4A, //19290x66,0x4B,0x3e, //19300x0d,0x4A,0x51, //19310x0e,0xA5,0x46, //19320x56,0xd4,0xBA, //19330x05,0xAd,0x4e, //19340x02,0xB6,0x44, //19350x39,0x37,0x38, //19360x09,0x2e,0x4B, //19370x7C,0x96,0xBf, //19380x0C,0x95,0x53, //19390x0d,0x4A,0x48, //19400x6d,0xA5,0x3B, //1941

0x0B,0x55,0x4f,〃19420x05,0x6A,0x45,〃19430x4A,0xAd,0xB9,//19440x02,0x5d,0x4d,〃19450x09,0x2d,0x42,//19460x2C,0x95,0xB6,//19470x0A,0x95,0x4A,//19480x7B,0x4A,0xBd,//19490x06,0xCA,0x51,//19500x0B,0x55,0x46,//19510x55,0x5A,0xBB,//19520x04,0xdA,0x4e,//19530x0A,0x5B,0x43,//19540x35,0x2B,0xB8,//19550x05,0x2B,0x4C,//19560x8A,0x95,0x3f,//19570x0e,0x95,0x52,//19580x06,0xAA,0x48,//19590x7A,0xd5,0x3C,//19600x0A,0xB5,0x4f,//19610x04,0xB6,0x45,//19620x4A,0x57,0x39,//19630x0A,0x57,0x4d,//19640x05,0x26,0x42,//19650x3e,0x93,0x35,//19660x0d,0x95,0x49,//19670x75,0xAA,0xBe,//19680x05,0x6A,0x51,//19690x09,0x6d,0x46,//19700x54,0xAe,0xBB,//19710x04,0xAd,0x4f,//19720x0A,0x4d,0x43,//19730x4d,0x26,0xB7,//19740x0d,0x25,0x4B,//19750x8d,0x52,0xBf,//19760x0B,0x54,0x52,//19770x0B,0x6A,0x47,//19780x69,0x6d,0x3C,//19790x09,0x5B,0x50,//19800x04,0x9B,0x45,//19810x4A,0x4B,0xB9,//19820x0A,0x4B,0x4d,//19830xAB,0x25,0xC2,//19840x06,0xA5,0x54,//19850x06,0xd4,0x49,〃19860x6A,0xdA,0x3d,//19870x0A,0xB6,0x51,//19880x09,0x37,0x46,//19890x54,0x97,0xBB,//19900x04,0x97,0x4f,//19910x06,0x4B,0x44,//19920x36,0xA5,0x37,//19930x0e,0xA5,0x4A,//19940x86,0xB2,0xBf,//19950x05,0xAC,0x53,//19960x0A,0xB6,0x47,//19970x59,0x36,0xBC,//19980x09,0x2e,0x50,//19992940x0C,0x96,0x45,//20002970x4d,0x4A,0xB8,//20010x0d,0x4A,0x4C,//20020x0d,0xA5,0x41,//20030x25,0xAA,0xB6,//20040x05,0x6A,0x49,//20050x7A,0xAd,0xBd,//20060x02,0x5d,0x52,//20070x09,0x2d,0x47,//20080x5C,0x95,0xBA,//20090x0A,0x95,0x4e,//20100x0B,0x4A,0x43,//20110x4B,0x55,0x37,//20120x0A,0xd5,0x4A,//20130x95,0x5A,0xBf,//20140x04,0xBA,0x53,//20150x0A,0x5B,0x48,//20160x65,0x2B,0xBC,//20170x05,0x2B,0x50,//20180x0A,0x93,0x45,//20190x47,0x4A,0xB9,//20200x06,0xAA,0x4C,//20210x0A,0xd5,0x41,//20220x24,0xdA,0xB6,//20230x04,0xB6,0x4A,//20240x69,0x57,0x3d,//20250x0A,0x4e,0x51,//20260x0d,0x26,0x46,//20270x5e,0x93,0x3A,//20280x0d,0x53,0x4d,//2029

0x05,0xAA,0x43,//20300x36,0xB5,0x37,//20310x09,0x6d,0x4B,//20320xB4,0xAe,0xBf,//20330x04,0xAd,0x53,//20340x0A,0x4d,0x48,//20350x6d,0x25,0xBC,//20360x0d,0x25,0x4f,//20370x0d,0x52,0x44,//20380x5d,0xAA,0x38,//20390x0B,0x5A,0x4C,//20400x05,0x6d,0x41,//20410x24,0xAd,0xB6,//20420x04,0x9B,0x4A,//20430x7A,0x4B,0xBe,//20440x0A,0x4B,0x51,//20450x0A,0xA5,0x46,//20460x5B,0x52,0xBA,//20470x06,0xd2,0x4e,//20480x0A,0xdA,0x42,//20490x35,0x5B,0x37,//20500x09,0x37,0x4B,//20510x84,0x97,0xC1,//20520x04,0x97,0x53,//20530x06,0x4B,0x48,//20540x66,0xA5,0x3C,//20550x0e,0xA5,0x4f,//20560x06,0xB2,0x44,//20570x4A,0xB6,0x38,//20580x0A,0xAe,0x4C,//20590x09,0x2e,0x42,//20600x3C,0x97,0x35,//20610x0C,0x96,0x49,//20620x7d,0x4A,0xBd,//20630x0d,0x4A,0x51,//20640x0d,0xA5,0x45,//20650x55,0xAA,0xBA,//20660x05,0x6A,0x4e,//20670x0A,0x6d,0x43,//20680x45,0x2e,0xB7,//20690x05,0x2d,0x4B,//20700x8A,0x95,0xBf,//20710x0A,0x95,0x53,//20720x0B,0x4A,0x47,//20730x6B,0x55,0x3B,//20740x0A,0xd5,0x4f,//20750x05,0x5A,0x45,//20760x4A,0x5d,0x38,//20770x0A,0x5B,0x4C,//20780x05,0x2B,0x42,//20790x3A,0x93,0xB6,//20800x06,0x93,0x49,//20810x77,0x29,0xBd,//20820x06,0xAA,0x51,//20830x0A,0xd5,0x46,//20840x54,0xdA,0xBA,//20850x04,0xB6,0x4e,//20860x0A,0x57,0x43,//20870x45,0x27,0x38,//20880x0d,0x26,0x4A,//20890x8e,0x93,0x3e,//20900x0d,0x52,0x52,//20910x0d,0xAA,0x47,//20920x66,0xB5,0x3B,//20930x05,0x6d,0x4f,//20940x04,0xAe,0x45,//20950x4A,0x4e,0xB9,//20960x0A,0x4d,0x4C,//20970x0d,0x15,0x41,//20980x2d,0x92,0xB5,//2099};codeucharday_code1[9]={0x0,0x1f,0x3b,0x5a,0x78,0x97,0xb5,0xd4,0xf3};codeuintday_code2[3]={0x111,0x130,0x14e};//月份数据表dataucharyear_moon,month_moon,day_moon,week;unsignedchardatadisdata[5];unsignedinttvalue;//温度值unsignedchartflag;//温度正负标志unsignedcharcodedis_week口={"SUN,MON,TUE,WED,THU,FRI,SAT"};unsignedcharcodepara_month[13]={0,0,3,3,6,1,4,6,2,5,0,3,5};//星期月参变数unsignedchardatadis_buf1[16]; //lcd上排显示缓冲区unsignedchardatadis_buf2[16]; //lcd下排显示缓冲区unsignedchardatayear,month,date,week;//年、月、日、星期unsignedchardataarmhour,armmin,armsec;//闹钟时、分、秒unsignedchardatahour,min,sec,sec100; 〃时、分、秒、百分之一秒unsignedchardataflag,vkey,skey;//设置状态计数标志、按键先前值、按键当前值据及变量定

1--启用，0—关闭bitalarm;〃标识是否启用闹钟，1--启用，0—关闭bitc_moon;sbitrs=P2A7;//LCDOO川口选择端 (H/L)sbitrw=P2A6;//LCDD/ODDO (H/L)sbitep=P2A5;//LCD使能控制sbitPRE=P2A4;//DOD (k3)sbitSET=P2A3;//DOD (k4)sbitSPK=P2A2;sbitDQ=P2A1;//DS18B20与单片机连接口/**************************子函数定义区/**************************子函数定义区voiddelay(unsignedcharms);intlcd_busy();voidlcd_wcmd(charcmd);voidlcd_wdat(chardat);voidlcd_pos(charpos);voidlcd_init();voidpro_timedate();voidpro_display();voiddelay(unsignedcharms);intlcd_busy();voidlcd_wcmd(charcmd);voidlcd_wdat(chardat);voidlcd_pos(charpos);voidlcd_init();voidpro_timedate();voidpro_display();voidpro_key();voidtime_alarm();unsignedcharscan_key();unsignedcharweek_proc();intleap_year();voidlcd_sef_chr();〃延时程序〃测试 LCD忙碌状态程序〃写入指令到 LCD程序〃写入数据到 LCD程序//LCD数据指针位置程序//LCD初始化设定程序〃时间日期处理程序〃显示处理程序〃按键处理程序〃定时报警功能 （闹钟）〃按键扫描程序〃星期自动计算与显示函数〃判断是否为闰年//LCD自定义字符程序voidupdate_disbuf(unsignedchart1,unsignedchardisdata口,unsignedchardis_h,unsignedchardis_m,unsignedchardis_s);〃更新显示缓冲区函数voiddelay_18B20(unsignedinti);voidds1820rst();〃延时 1微秒unsignedchards1820rd();//ds1820复位//DOOvoidds1820wr(unsignedcharwdata);intread_temp();voidds18b20disp();//〃口数据〃读取温度值并转换〃温度值显示子 函 数 定 义区{uchartemp;switch(month_p){case1:{temp=year_code[table_addr]&0x08;if(temp==0)return(0);elsereturn(1);}case2:{temp=year_code[table_addr]&0x04;if(temp==0)return(0);elsereturn(1);}case3:{temp=year_code[table_addr]&0x02;if(temp==0)return(0);elsereturn(1);}case4:{temp=year_code[table_addr]&0x01;if(temp==0)return(0);elsereturn(1);}case5:{temp=year_code[table_addr+1]&0x80;if(temp==0)return(0);elsereturn(1);}case6:{temp=year_code[table_addr+1]&0x40;if(temp==0)return(0);elsereturn(1);}case7:{temp=year_code[table_addr+1]&0x20;if(temp==0)return(0);elsereturn(1);}case8:{temp=year_code[table_addr+1]&0x10;if(temp==0)return(0);elsereturn(1);}case9:{temp=year_code[table_addr+1]&0x08;if(temp==0)return(0);elsereturn(1);}case10:{temp=year_code[table_addr+1]&0x04;if(temp==0)return(0);elsereturn(1);}case11:{temp=year_code[table_addr+1]&0x02;if(temp==0)return(0);elsereturn(1);}case12:{temp=year_code[table_addr+1]&0x01;if(temp==0)return(0);elsereturn(1);}case13:{temp=year_code[table_addr+2]&0x80;if(temp==0)return(0);elsereturn(1);}}////bitget_moon_day(ucharmonth_p,uinttable_addr)/*子函数 ，////bitget_moon_day(ucharmonth_p,uinttable_addr)/*子函数 ，用于读取数据表中农历月的大月或小月，如果该月为大返回1,为小返回产 生0*//*函数功能{据:输入 BCD阳历数据 ，输出 BCD阴历数据//c=0为21世纪，c=1（只允许1901-2099年）*/为19世纪输入输出数据均为BCD数uchartemP0,temp2,temp3,month_p;uinttemp4,table_addr;bitflag2,flag_y;temP0=year/16;//BCD->hex先把数据转换为十六进制temp2=year%16;year=temP0*10+temp2;temP0=month/16;temp2=month%16;month=temP0*10+temp2;temP0=day/16;temp2=day%16;day=temP0*10+temp2;〃定位数据表地址if(c==0){table_addr=(year+0x64-1)*0x3;}else{table_addr=(year-1)*0x3;}〃定位数据表地址完成〃取当年春节所在的公历月份temP0=year_code[table_addr+2]&0x60;temP0=_cror_(temP0,5);〃取当年春节所在的公历月份完成〃取当年春节所在的公历日temp2=year_code[table_addr+2]&0x1f;〃取当年春节所在的公历日完成//计算当年春年离当年元旦的天数 ，春节只会在公历 1月或2月if(temP0==0x1){temp3=temp2-1;}else{temp3=temp2+0x1f-1;}//计算当年春年离当年元旦的天数完成〃计算公历日离当年元旦的天数 ，为了减少运算 ，用了两个表//day_code1[9],day_code2[3]〃如果公历月在九月或前〃在九月后 ,0000〃如输入公历日为〃如输入公历日为if(month<10){，天数会少于0xff,OO0xff,用表 day_code2[3]8月10日，则公历日离元旦天数为11月10日，则公历日离元旦天数为temp4=day_code1[month-1]+day-1;}else{temp4=day_code2[month-10]+day-1;}if((month>0x2)&&(year%0x4==0)){〃公历0001day_code1[9],day_code1[8-1]+10-1day_code2[11-10]+10-12月并且该年的20为闰月 ，00加temp4+=1;}〃计算公历日离当年元旦的00完成〃判断公历日在春节前还是春节后if(temp4>=temp3){〃公历日在春节后或就是春节当日使用下面代码进行运算temp4-=temp3;month=0x1;month_p=0x1;//公历日在春节前或就是春节当日flag2=get_moon_day(month_p,table_addr);//0000flag_y=0;if(flag2==0)temP0=0x1d;//小月 290elsetemP0=0x1e;//大小 300temp2=year_code[table_addr]&0xf0;temp2=_cror_(temp2,4);〃从数据表中取该年的闰00份while(temp4>=temP0){temp4-=temP0;month_p+=1;if(month==temp2){flag_y=~flag_y;if(flag_y==0)month+=1;}elsemonth+=1;flag2=get_moon_day(month_p,table_addr);if(flag2==0)temP0=0x1d;elsetemP0=0x1e;month_p指向首月1,0000 0，如为 0则该年无闰月}day=temp4+1;}else{〃公历日在春节前使用下面代码进行运算temp3-=temp4;if(year==0x0){year=0x63;c=1;}elseyear-=1;table_addr-=0x3;month=0xc;temp2=year_code[table_addr]&0xf0;temp2=_cror_(temp2,4);if(temp2==0)month_p=0xc;elsemonth_p=0xd;〃如果当年有闰月 ，一年有十三个月 ，月指向 13,无闰口指向 12flag_y=0;flag2=get_moon_day(month_p,table_addr);if(flag2==0)temP0=0x1d;elsetemP0=0x1e;while(temp3>temP0){temp3-=temP0;month_p-=1;if(flag_y==0)month-=1;if(month==temp2)flag_y=~flag_y;flag2=get_moon_day(month_p,table_addr);if(flag2==0)temP0=0x1d;elsetemP0=0x1e;}day=temP0-temp3+1;}c_moon=c; 〃HEX->BCD，运算结束后 ，把数据转换为 BCD数据temP0=year/10;temP0=_crol_(temP0,4);temp2=year%10;year_moon=temP0|temp2;temP0=month/10;temP0=_crol_(temP0,4);temp2=month%10;month_moon=temP0|temp2;temP0=day/10;temP0=_crol_(temP0,4);temp2=day%10;day_moon=temP0|temp2;}/********************************农历的产生/******************************液晶驱动程序voiddelay(unsignedcharms)//延时程序{while(ms--){unsignedchari;for(i=0;i<250;i++){_nop_(); 〃执行一条 _nop_()指令为一个机器周期_nop_()；_nop_();_nop_()；}}}intlcd_busy()〃测试LCD忙碌状态{intresult;rs=0;rw=1;ep=1；_nop_();_nop_();_nop_();_nop_();result=(bit)(P0&0x80);//LCD的D0--D7中，D7=1为忙碌，D7=0为空闲ep=0;returnresult;}voidlcd_wcmd(charcmd)〃写入指令到LCD{while(lcd_busy());//当lcd_busy为1时，检测LCD忙碌状态，lcd-busy为0时，开始口指令rs=0;rw=0;ep=0;_nop_();_nop_();P0=cmd;_nop_();_nop_();_nop_();_nop_();ep=1;_nop_();_nop_();_nop_()；_nop_();ep=0;}voidlcd_wdat(chardat)〃写入数据到 LCD{while(lcd_busy());//当lcd_busy为1时，检测 LCD忙碌状态，lcd-busy为0时，开始写数据rs=1;rw=0;ep=0;P0=dat;_nop_();_nop_();_nop_();_nop_();ep=1;_nop_();_nop_();_nop_();_nop_();ep=0;}voidlcd_pos(charpos)//LCD数据指针位置程序{lcd_wcmd(pos|0x80);〃数据指针 =80+地址码(00H~27H,40H~67H)}voidlcd_sef_chr()〃设定二个自定义字符 ，(注意：LCD1602中自定义字符的地址为 0x00—0x07』可定义 8个字符)〃这里我们设定把一个自定义字符放在 0x00位置(000)，另一个放在0x01位子(001){ 〃第一个自定义字符lcd_wcmd(0x40);//"01000000"第1行地址//(D7D6为地址设定命令形式 D5D4D3为字符存放位置 (0--7),D2D1D0为字符行地口(0--7))lcd_wdat(0x1f); //"XXX11111" 第1行数据//D7D6D5为XXX,表示为任意数(一般用 000),D4D3D2D1D0为字符行数据lcd_wcmd(0x41);//"01000001" 第2行地址lcd_wdat(0x11); //"XXX10001" 第 2 行数据lcd_wcmd(0x42); //"01000010" 第 3 行地址lcd_wdat(0x15); //"XXX10101" 第 3 行数据lcd_wcmd(0x43); //"01000011" 第 4 行地址lcd_wdat(0x11); //"XXX10001" 第 4 行数据lcd_wcmd(0x44); //"01000100" 第 5 行地址lcd_wdat(0x1f)； //"XXX11111" 第 5 行数据lcd_wcmd(0x45); //"01000101" 第 6 行地址lcd_wdat(0x0a); //"XXX01010" 第 6 行数据lcd_wcmd(0x46); //"01000110" 第 7 行地址lcd_wdat(0x1f)； //"XXX11111" 第 7 行数据lcd_wcmd(0x47); //"01000111" 第 8 行地址lcd_wdat(0x00); //"XXX00000" 第 8 行数据〃第二个自定义字符lcd_wcmd(0x48);//"01001000"第1行地址lcd_wdat(0x01); //"XXX00001" 第 1 行数据lcd_wcmd(0x49); //"01001001" 第 2 行地址lcd_wdat(0x1b); //"XXX11011" 第 2 行数据lcd_wcmd(0x4a); //"01001010" 第 3 行地址lcd_wdat(0x1d); //"XXX11101" 第 3 行数据lcd_wcmd(0x4b); //"01001011" 第 4 行地址lcd_wdat(0x19); //"XXX11001" 第 4 行数据lcd_wcmd(0x4c); //"01001100" 第 5 行地址lcd_wdat(0x1d); //"XXX11101" 第 5 行数据lcd_wcmd(0x4d); //"01001101" 第 6 行地址lcd_wdat(0x1b); //"XXX11011" 第 6 行数据lcd_wcmd(0x4e); //"01001110" 第 7 行地址lcd_wdat(0x01); //"XXX00001" 第 7 行数据lcd_wcmd(0x4f)； //"01001111" 第 8 行地址lcd_wdat(0x00); //"XXX00000" 第 8 行数据}voidlcd_init()//LCD初始化设定lcd_wcmd(0x38);〃设置LCD为16X2显示,5X7点阵，八位数据借口delay(1);lcd_wcmd(0x0c);//LCD开显示及光标设置(光标不闪烁，不显示 "-")delay(1);lcd_wcmd(0x06);//LCD显示光标移动设置(光标地址指针加1,整屏显示不移动 )delay(1);lcd_wcmd(0x01);〃清除 LCD的显示内容delay(1);intleap_year()〃闰年的计算{intleap;if((year%4==0&&year%100!=0)llyear%400==0)〃闰年的条件leap=1;elseleap=0;returnleap;}unsignedcharweek_proc()〃星期的自动运算和处理{unsignedcharnum_leap;unsignedcharc;num_leap=year/4-year/100+year/400;//自00年起到year所经历的闰年数if(leap_year()&&month<=2) 〃既是闰年且是 1月和2月c=5;elsec=6;week=(year+para_month[month]+date+num_leap+c)%7;//计算对应的星期returnweek;}voidpro_timedate()〃时间和日期处理程序{sec++;if(sec>59){sec=0;min++;if(min>59){min=0;hour++;if(hour>23){hour=0;date++;if(month==1||month==3||month==5||month==7||month==8||month==10||month==12)if(date>31){date=1;month++;}if(month==4llmonth==6llmonth==9llmonth==11)if(date>30){date=1;month++;}if(month==2){if(leap_year()){if(date>29){date=1;month++;}}else{if(date>28){date=1;month++;}}}if(month>12){month=1;year++;}if(year>99)year=0;}}}week_proc();if(sec==armsec&&min==armmin&&hour==armhour){if(alarm)SPK=0;〃闹钟启用时，报警时间到，启动 Timer1}if(sec==(armsec+15)&&min==armmin&&hour==armhour){if(alarm)SPK=1;〃闹钟启用时，报警时间到 ，启动Timer1voidtimer0()interrupt1//Timer。中断处理程序 ，秒的产生{TH0=0xdc;TL0=0x06;sec100++;〃大月 31天〃小月 30天〃闰年的条件〃闰年 2月为 29天〃平年 2月为 28天//Timer。置10ms定时初值 dc00H(2A16=65536D,dc06H=56326D)〃定时时间 =(65536-56326)*(1/12.0)*12=10ms(f0=12.0Mhz)if(sec100>=100)//1秒时间 (100*10ms=1000ms=1s){sec100=0;pro_timedate();〃调用时间和日期处理程序}update_disbuf(0x00,disdata,hour,min,sec);//0x00表示显示00位置的自定义字符pro_display(); 〃调用显示处理函数unsignedcharscan_key()〃给变量 vkey置初值〃给变量 vkey置初值〃读取PRE键的状态〃将PREDOODOOskey的B1〃读取SET键的状态 ，并存于 skey的〃返回 skey的键值 (即PRE,SETOOD)voidint0()interrupt0〃外部中断 INT0中断处理程序{TR0=0;IE=0;lcd_wcmd(0x0e);alarm=1;〃禁止 Timer。〃禁止中断〃显示光标 ”，整个光标不闪烁〃按键扫描程序{skey=0x00;skeyl=PRE;skey=skey<<1;位skeyl=SET;B0位returnskey;}flag=0;vkey=0x03;while(flagA0x0a){skey=scan_key();if(skeyAvkey){delay(10);skey=scan_key();flag=0;vkey=0x03;while(flagA0x0a){skey=scan_key();if(skeyAvkey){delay(10);skey=scan_key();if(skeyAvkey)〃扫描按键状态〃若skey与vkey相同跳出 ，相异执行〃去按键抖动〃转回扫描按键状态〃若skey与vkey相同跳出 ，相异执行vkey=skey;if(skey==0x01)〃将skey的值付给vkey//PRE键按下pro_display();lcd_pos(0x47);〃调用显示处理程序〃使光标位于第一个调整项下{flag++;//调整标志位加 1switch(flag)〃将光标置于相应调整位置{lcd_pos(0x49);break;〃光标置小时报警设置位置lcd_pos(0x4c);break;〃光标置分钟报警设置位置lcd_pos(0x4f);break;

〃光标置秒时报警设置位置update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x05);break;〃光标置年调整位置lcd_pos(0x08);break;〃光标置月调整位置lcd_pos(0x0b);break;〃光标置日调整位置lcd_pos(0x49);break;〃光标置时调整位置lcd_pos(0x4c);break;〃光标置分调整位置lcd_pos(0x4f);break;〃光标置秒调整位置default:break;}}//SET键按下〃转设置按键处理程序//SET键按下〃转设置按键处理程序〃设置 LCD开显示及光标不闪烁〃清除 LCD的显示内容//CPU开中断，INT0,INT1』中断//Timer。启动{pro_key();}}}}lcd_wcmd(0x0c);不显示"-"lcd_wcmd(0x01);IE=0x8f;TR0=1;}voidpro_key()〃设置按键处理程序{switch(flag){case0:alarm=!alarm;〃启用或关闭闹钟( alarm=1:启用，alarm=0:关闭)update_disbuf(0x50,"alar:",armhour,armmin,armsec);〃更新显示数据pro_display();〃调用显示处理lcd_pos(0x47);break;〃光标回到原调整位置case1:armhour++;if(armhour>23)armhour=0;update_disbuf(0x50,"alar:",armhour,armmin,armsec);〃更新显示数据pro_display();〃调用显示处理lcd_pos(0x49);break;〃光标回到原调整位置case2:armmin++;if(armmin>59)armmin=0;update_disbuf(0x50,"alar:",armhour,armmin,armsec);pro_display();lcd_pos(0x4c);break;case3:armsec++;if(armsec>59)armsec=0;update_disbuf(0x50,"alar:",armhour,armmin,armsec);pro_display();lcd_pos(0x4f);break;case4:year++;if(year>99)year=0;week_proc(); 〃星期自动运算update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x05);break;case5:month++;if(month>12)month=1;week_proc(); 〃星期自动运算update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x08);break;case6:date++;if(month==1||month==3||month==5||month==7

||month==8||month==10||month==12)if(date>31)date=1; 〃大月 31天if(month==4||month==6||month==9||month==11)if(date>30)date=1; 〃小月30天if(month==2){if(leap_year()) 〃闰年的条件29天{if(date>29)date=1;} 〃闰年2月为29天else{if(date>28)date=1;}} 〃平年 2月为28天week_proc(); 〃星期自动运算update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x0b);break;case7:hour++;if(hour>23)hour=0;update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x49);break;case8:min++;if(min>59)min=0;update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x4c);break;case9:sec++;if(sec>59)sec=0;update_disbuf(0x50,"time:",hour,min,sec);pro_display();lcd_pos(0x4f);break;default:break;}}/********************万年口及/********************万年口及温度温馨提示的显示等voidupdate_disbuf(unsignedchart1,unsignedchardisdata口,unsignedchardis_h,unsignedchardis_m,unsignedchardis_s)〃更新显示缓冲区{inti=0;unsignedcharcodedis1[16]={"Cold!Wearmore!"};〃原来空格也算进去了，如此unsignedcharcodedis2[16]={"Agoogweather!!"};unsignedcharcodedis3[16]={"Hot!Iwantice!"};ds18b20disp();dis_buf2[0]=disdata[0];dis_buf2[1]=disdata[1];dis_buf2[2]=disdata[2];dis_buf2[3]=disdata[3];dis_buf2[4]=disdata[4];if(dis_buf2[3]==0x2e){dis_buf2[5]=0xdf;dis_buf2[6]='C';}else{dis_buf2[5]=0x20;dis_buf2[6]=0x20;}if(alarm)dis_buf2[7]=0x01; //alarm=1,显示闹钟启用标致(第二个自定义字符)elsedis_buf2[7]=0x20; //alarm=0,不显示闹钟启用标致dis_buf2[8]=dis_h/10+48;dis_buf2[9]=dis_h%10+48;dis_buf2[10]=0x3a; //':'dis_buf2[11]=dis_m/10+48;dis_buf2[12]=dis_m%10+48;dis_buf2[13]=0x3a; //':'dis_buf2[14]=dis_s/10+48;dis_buf2[15]=dis_s%10+48;if(dis_buf2[15]-48==7|dis_buf2[15]-48==8){if(dis_buf2[1]-48==0|dis_buf2[1]-48==1){for(i=0;i<16;i++)dis_buf1[i]=dis1[i];}elseif(dis_buf2[1]-48==2){for(i=0;i<16;i++)dis_buf1[i]=dis2[i];}

else{for(i=0;i<16;i++)dis_buf1[i]=dis3[i];}}elseif(dis_buf2[15]-48==3|dis_buf2[15]-48==4){Conversion(0,year,month,date);dis_buf1[0]='L';dis_buf1[1]='u';dis_buf1[2]='n';dis_buf1[3]='n';dis_buf1[4]='a';dis_buf1[5]='r';dis_buf1[6]=50;dis_buf1[7]=48;dis_buf1[8]=year_moon/16+48;dis_buf1[9]=year_moon%16+48;dis_buf1[10]=0x2d;dis_buf1[11]=month_moon/16+48;dis_buf1[12]=month_moon%16+48;dis_buf1[13]=0x2d;dis_buf1[14]=day_moon/16+48;dis_buf1[15]=day_moon%16+48;}else{TOC\o"1-5"\h\zdis_buf1[0]=t1; //dis_buf1[1]=0x20; 〃空格dis_buf1[2]=50; //'2'dis_buf1[3]=48; //'0'dis_buf1[4]=year/10+48;dis_buf1[5]=year%10+48;dis_buf1[6]=0x2d;dis_buf1[7]=month/10+48;dis_buf1[8]=month%10+48;dis_buf1[9]=0x2d; //'-'dis_buf1[10]=date/10+48;dis_buf1[11]=date%10+48;dis_buf1[12]=0x20;dis_buf1[13]=dis_week[4*week];dis_buf1[14]=dis_week[4*week+1];dis_buf1[15]=dis_week[4*week+2];}}voidpro_display()〃显示处理程序{unsignedchari;lcd_pos(0x00);for(i=0;i<=15;i++){lcd_wdat(dis_buf1[i]);}lcd_pos(0x40);for(i=0;i<=15;i++)

{l