智能电子钟源程序.docx

1、智能电子钟源程序#include#define uint unsigned int#define uchar unsigned char#define yh 0x80 #define er 0x80+0x40 uchar a,miao,shi,fen,ri,yue,nian,week,flag,key1n,temp; uint tem;float f_tem; /液晶屏的与C51之间的引脚连接定义sbit rs=P20;sbit en=P22;sbit rw=P21;/如果硬件上rw接地，就不用写这句和后面的rw=0了 sbit IO=P11;sbit SCLK=P10;sbit RST=P1

2、2;sbit led=P26;/LED背光开关sbit ACC0=ACC0;sbit ACC7=ACC7;/校时按键与C51的引脚连接定义sbit key1=P15;/设置键sbit key2=P16;/加键sbit key3=P17;/减键sbit buzzer=P13;/蜂鸣器，通过三极管9012驱动，端口低电平响/ds18b20芯片与c51之间的引脚连接定义sbit tem_ds=P33; uchar code tab1=20 - - ;/年显示的固定字符uchar code tab2= : : ;/时间显示的固定字符void delay(uint xms)/延时函数，有参函数 uint

3、 x,y; for(x=xms;x0;x-) for(y=110;y0;y-);/*ds18b20芯片有关子程序*/void DS18B20_init() uint i; tem_ds=0; i=160; while(i0) i-; tem_ds=1; i=8; while(i0) i-; void temwritebit(uchar instruc_data) int time; if(instruc_data) tem_ds=0; time=3;/延时14us while(time0) time-; tem_ds=1;/写1 time=8;/延时35us while(time0) time

4、-; else tem_ds=0; time=14;/延时62us while(time0) time-; tem_ds=1;/释放数据线 time+;time+;uchar temreadbit() uint i; bit datbit; tem_ds=0; i+; tem_ds=1; i+;i+; datbit=tem_ds;/读数据 i=10;/延时45 while(i0) i-; tem_ds=1; return(datbit); uchar temreadbyte() uchar i,j,dat; dat=0; for(i=0;i8;i+) j=temreadbit() ; dat=

5、(j1); return(dat); void temwritebyte(uchar instru) int i; for(i=0;i=1; uint get_tem()/采集温度 uchar tem_L,tem_H; DS18B20_init(); temwritebyte(0xcc); temwritebyte(0x44); delay(1); temwritebyte(0xcc);/写跳过ROM指令； temwritebyte(0xbe); /读数据 tem_L=temreadbyte(); tem_H=temreadbyte(); tem=tem_H8|tem_L; f_tem=tem

6、*0.0625;/得到真实的十进制温度值 tem=f_tem; return (tem);/液晶写入指令函数与写入数据函数void write_1602com(uchar com)/*液晶写入指令函数* rs=0;/数据/指令选择置为指令 rw=0;/读写选择置为写 P0=com;/送入数据 delay(1); en=1;/拉高使能端，为制造有效的下降沿做准备 delay(1); en=0;/en由高变低，产生下降沿，液晶执行命令void write_1602dat(uchar dat)/*液晶写入数据函数* rs=1;/数据/指令选择置为数据 rw=0;/读写选择置为写 P0=dat;/送入

7、数据 delay(1); en=1;/en置高电平，为制造下降沿做准备 delay(1); en=0;/en由高变低，产生下降沿，液晶执行命令void lcd_init()/*液晶初始化函数* write_1602com(0x38);/设置液晶工作模式，意思：16*2行显示，5*7点阵，8位数据 write_1602com(0x01);/清显示 write_1602com(0x06);/整屏不移动，光标自动右移 write_1602com(yh+1);/日历显示固定符号从第一行第1个位置之后开始显示 write_1602com(0x0c);/开显示不显示光标 for(a=0;a14;a+) w

8、rite_1602dat(tab1a);/向液晶屏写日历显示的固定符号部分 delay(3); write_1602com(er+2);/时间显示固定符号写入位置，从第2个位置后开始显示 for(a=0;a0;a-) IO=ACC0; SCLK=0; SCLK=1; ACC=ACC1; uchar read_byte()/读一个字节 RST=1; for(a=8;a0;a-) ACC7=IO; SCLK=1; SCLK=0; ACC=ACC1; return (ACC);/*void write_1302(uchar add,uchar dat)/向1302芯片写函数，指定写入地址，数据 RS

9、T=0; SCLK=0; RST=1; write_byte(add); write_byte(dat); SCLK=1; RST=0;uchar read_1302(uchar add)/从1302读数据函数，指定读取数据来源地址 uchar temp; RST=0; SCLK=0; RST=1; write_byte(add); temp=read_byte(); SCLK=1; RST=0; return(temp);uchar BCD_Decimal(uchar bcd)/BCD码转十进制函数，输入BCD，返回十进制 uchar Decimal; Decimal=bcd4; retur

10、n(Decimal=Decimal*10+(bcd&=0x0F);/*void ds1302_init()/1302芯片初始化子函数(2010-01-07,12:00:00,week4) RST=0; SCLK=0; write_1302(0x8e,0x00);/允许写，禁止写保护 write_1302(0x80,0x00);/向DS1302内写秒寄存器80H写入初始秒数据00 write_1302(0x82,0x00);/向DS1302内写分寄存器82H写入初始分数据00 write_1302(0x84,0x12);/向DS1302内写小时寄存器84H写入初始小时数据12 write_130

11、2(0x8a,0x05);/向DS1302内写周寄存器8aH写入初始周数据4 write_1302(0x86,0x09);/向DS1302内写日期寄存器86H写入初始日期数据07 write_1302(0x88,0x12);/向DS1302内写月份寄存器88H写入初始月份数据01 write_1302(0x8c,0x11);/向DS1302内写年份寄存器8cH写入初始年份数据10 write_1302(0x8e,0x80);/打开写保护/温度显示子函数void write_temp(uchar add,uchar dat)/向LCD写温度数据,并指定显示位置 uchar gw,sw; gw=d

12、at%10;/个位 sw=dat/10;/十位 write_1602com(er+add);/er是头文件规定的值0x80+0x40 write_1602dat(0x30+sw);/数字+30得到该数字的LCD1602显示码 write_1602dat(0x30+gw);/数字+30得到该数字的LCD1602显示码 write_1602dat(0xdf);/显示温度的小圆圈符号，0xdf是液晶屏字符库的该符号地址码 write_1602dat(0x43);/显示C符号，0x43是液晶屏字符库里大写C的地址码 /时分秒显示子函数void write_sfm(uchar add,uchar dat

13、)/向LCD写时分秒,有显示位置加、现示数据，两个参数 uchar gw,sw; gw=dat%10;/取得个位数字 sw=dat/10;/取得十位数字 write_1602com(er+add);/er是头文件规定的值0x80+0x40 write_1602dat(0x30+sw);/数字+30得到该数字的LCD1602显示码 write_1602dat(0x30+gw);/数字+30得到该数字的LCD1602显示码 /年月日显示子函数void write_nyr(uchar add,uchar dat)/向LCD写年月日，有显示位置加数、显示数据，两个参数 uchar gw,sw; gw=

14、dat%10;/取得个位数字 sw=dat/10;/取得十位数字 write_1602com(yh+add);/设定显示位置为第一个位置+add write_1602dat(0x30+sw);/数字+30得到该数字的LCD1602显示码 write_1602dat(0x30+gw);/数字+30得到该数字的LCD1602显示码 void write_week(uchar week)/写星期函数 write_1602com(yh+0x0c);/星期字符的显示位置 switch(week) case 1:write_1602dat(M);/星期数为1时，显示 write_1602dat(O); w

15、rite_1602dat(N); break; case 2:write_1602dat(T);/星期数据为2时显示 write_1602dat(U); write_1602dat(E); break; case 3:write_1602dat(W);/星期数据为3时显示 write_1602dat(E); write_1602dat(D); break; case 4:write_1602dat(T);/星期数据为4是显示 write_1602dat(H); write_1602dat(U); break; case 5:write_1602dat(F);/星期数据为5时显示 write_1

16、602dat(R); write_1602dat(I); break; case 6:write_1602dat(S);/星期数据为6时显示 write_1602dat(T); write_1602dat(A); break; case 7:write_1602dat(S);/星期数据为7时显示 write_1602dat(U); write_1602dat(N); break;/*键盘扫描函数*/void keyscan() if(key1=0)/key1为功能键（设置键） delay(9);/延时，用于消抖动 if(key1=0)/延时后再次确认按键按下 buzzer=0;/蜂鸣器短响一次

17、 delay(20); buzzer=1; while(!key1);/按键等待释放 key1n+; if(key1n=9) key1n=1;/设置按键共有秒、分、时、星期、日、月、年、返回，8个功能循环 switch(key1n) case 1: TR0=0;/关闭定时器 /TR1=0; write_1602com(er+0x09);/设置按键按动一次，秒位置显示光标 write_1602com(0x0f);/设置光标为闪烁 temp=(miao)/10*16+(miao)%10;/秒数据写入DS1302 write_1302(0x8e,0x00); write_1302(0x80,0x80

18、|temp);/miao write_1302(0x8e,0x80); break; case 2: write_1602com(er+6);/按2次fen位置显示光标 /write_1602com(0x0f); break; case 3: write_1602com(er+3);/按动3次，shi /write_1602com(0x0f); break; case 4: write_1602com(yh+0x0e);/按动4次，week /write_1602com(0x0f); break; case 5: write_1602com(yh+0x0a);/按动5次，ri /write_1

19、602com(0x0f); break; case 6: write_1602com(yh+0x07);/按动6次，yue /write_1602com(0x0f); break; case 7: write_1602com(yh+0x04);/按动7次，nian /write_1602com(0x0f); break; case 8: write_1602com(0x0c);/按动到第8次，设置光标不闪烁 TR0=1;/打开定时器 temp=(miao)/10*16+(miao)%10; write_1302(0x8e,0x00); write_1302(0x80,0x00|temp);/m

20、iao数据写入DS1302 write_1302(0x8e,0x80); break; /*加键key2*/ if(key1n!=0)/当key1按下以下。再按以下键才有效（按键次数不等于零） if(key2=0)/上调键 delay(10); if(key2=0) buzzer=0;/蜂鸣器短响一次 delay(20); buzzer=1; while(!key2); switch(key1n) case 1:miao+;/设置键按动1次，调秒 if(miao=60) miao=0; write_sfm(0x08,miao); temp=(miao)/10*16+(miao)%10; wri

21、te_1302(0x8e,0x00); write_1302(0x80,temp); write_1302(0x8e,0x80); write_1602com(er+0x09); /write_1602com(0x0b); break; case 2:fen+; if(fen=60) fen=0; write_sfm(0x05,fen); temp=(fen)/10*16+(fen)%10; write_1302(0x8e,0x00); write_1302(0x82,temp); write_1302(0x8e,0x80); write_1602com(er+6); break; case

22、3:shi+; if(shi=24) shi=0; write_sfm(2,shi); temp=(shi)/10*16+(shi)%10; write_1302(0x8e,0x00); write_1302(0x84,temp); write_1302(0x8e,0x80); write_1602com(er+3); break; case 4:week+; if(week=8) week=1; write_1602com(yh+0x0C) ; write_week(week); temp=(week)/10*16+(week)%10; write_1302(0x8e,0x00); writ

23、e_1302(0x8a,temp); write_1302(0x8e,0x80); write_1602com(yh+0x0e); break; case 5:ri+; if(ri=32) ri=1; write_nyr(9,ri); temp=(ri)/10*16+(ri)%10; write_1302(0x8e,0x00); write_1302(0x86,temp); write_1302(0x8e,0x80); write_1602com(yh+10); break; case 6:yue+; if(yue=13) yue=1; write_nyr(6,yue); temp=(yue)

24、/10*16+(yue)%10; write_1302(0x8e,0x00); write_1302(0x88,temp); write_1302(0x8e,0x80); write_1602com(yh+7); break; case 7:nian+; if(nian=100) nian=0; write_nyr(3,nian); temp=(nian)/10*16+(nian)%10; write_1302(0x8e,0x00); write_1302(0x8c,temp); write_1302(0x8e,0x80); write_1602com(yh+4); break; /*减键ke

25、y3，各句功能参照加键注释*/ if(key3=0) delay(10);/调延时，消抖动 if(key3=0) buzzer=0;/蜂鸣器短响一次 delay(20); buzzer=1; while(!key3); switch(key1n) case 1:miao-; if(miao=-1) miao=59; write_sfm(0x08,miao); temp=(miao)/10*16+(miao)%10; write_1302(0x8e,0x00); write_1302(0x80,temp); write_1302(0x8e,0x80); write_1602com(er+0x09

26、); /write_1602com(0x0b); break; case 2:fen-; if(fen=-1) fen=59; write_sfm(5,fen); temp=(fen)/10*16+(fen)%10; write_1302(0x8e,0x00); write_1302(0x82,temp); write_1302(0x8e,0x80); write_1602com(er+6); break; case 3:shi-; if(shi=-1) shi=23; write_sfm(2,shi); temp=(shi)/10*16+(shi)%10; write_1302(0x8e,0

27、x00); write_1302(0x84,temp); write_1302(0x8e,0x80); write_1602com(er+3); break; case 4:week-; if(week=0) week=7; write_1602com(yh+0x0C); write_week(week); temp=(week)/10*16+(week)%10; write_1302(0x8e,0x00); write_1302(0x8a,temp); write_1302(0x8e,0x80); write_1602com(yh+0x0e); break; case 5:ri-; if(ri=0) ri=31; write_nyr(9,ri); temp=(ri)/10*16+(ri)%10;/十进制转换成DS1302要求的DCB码 write_1302(0x8e,0x00);/允许写，禁止写保护 writ