51单片机实现基于DS1302_1602_18B20的多功能电子时钟_带测温功能.doc

#include#define uchar unsigned char#define uint unsigned int/*-寄存器地址定义-*/#define WRITE_SECOND0x80 #define WRITE_MINUTE0x82 #define WRITE_HOUR0x84#define WRITE_DAY0x86#define WRITE_MONTH0x88#define WRITE_YEAR0x8C #define WRITE_PROTECT0x8E#define WRITE_WEEK0x8A#define WRITE_CURRENT 0x90 #define READ_SECOND0x81 #define READ_MINUTE0x83 #define READ_HOUR0x85#define READ_DAY0x87#define READ_MONTH0x89#define READ_WEEK0x8B#define READ_YEAR0x8D sbit RST=P35; /DS1302片选sbit DIO=P34; /DS1302数据信号sbit SCLK=P36; /DS1302时钟信号sbit ACC7=ACC7;sbit ACC0=ACC0; unsigned char count; sbit beep=P14;void INITIAL_1302(); unsigned char READ_1302(unsigned char addr); void WRITE_1302(unsigned char addr,unsigned char date);sbit LCD_E=P27; /液晶使能端sbit LCD_RS=P26; /液晶数据命令选择端sbit LCD_RW=P25; /液晶读写选择端sbit key0=P32; /功能键sbit key1=P33; /增大键sbit key2=P34; /减小键sbit DQ=P37; /18b20温度输入输出端char hour,minute,second,week,day,month,year,tem;unsigned char num,flag;unsigned char str1= 20 - - ;unsigned char str2= : : C;void delay(unsigned char z);void LCD_WRITE_COM(unsigned char com);void LCD_WRITE_DATA(unsigned char date);void LCD_WRITE_SFM(unsigned char addr,unsigned char date);void LCD_WRITE_NYR(unsigned char addr,unsigned char date);void LCD_WRITE_WEEK(unsigned char week);void LCD_INITIAL();void LCD_WRITE_TEMP(uchar addr,uchar temp);void keyscan();void INITIAL_TEMER0();uchar TMPH ,TMPL;void w1602c(uchar com);void w1602d(uchar data01);void delay2(uint ms);void delay3(uint us);uchar resert(void);uchar read_byte();void write_byte(uchar val);uint get_temp();void display();void delay3(uint us); /18b20uchar resert(void); /18b20uchar read_byte(); /18b20void write_byte(uchar val); /18b20uint get_temp(); /18b20 void main() LCD_INITIAL(); /液晶初始化 INITIAL_1302(); /DS1302初始化 INITIAL_TEMER0(); /定时器初始化 while(1) keyscan(); /按键扫描if(flag=0) /当标志位为0，允许读取DS1302数据，将数据送入液晶显示 second=READ_1302(0x81); LCD_WRITE_SFM(10,second); minute=READ_1302(0x83); LCD_WRITE_SFM(7,minute); hour=READ_1302(0x85); LCD_WRITE_SFM(4,hour); week=READ_1302(0x8b); LCD_WRITE_WEEK(week); day=READ_1302(0x87); LCD_WRITE_NYR(9,day); month=READ_1302(0x89); LCD_WRITE_NYR(6,month); year=READ_1302(0x8d); LCD_WRITE_NYR(3,year); tem=get_temp(); LCD_WRITE_TEMP(13,tem); /*1602BU份*/void delay(unsigned char z) /1602de延时函数 unsigned char x,y; for(x=z;x0;x-) for(y=110;y0;y-);void LCD_WRITE_COM(unsigned char com) LCD_RS=0; LCD_RW=0; LCD_E=1; P0=com; delay(5); LCD_E=0;void LCD_WRITE_DATA(unsigned char date) LCD_RS=1; LCD_RW=0; LCD_E=1; P0=date; delay(5); LCD_E=0;void LCD_WRITE_SFM(unsigned char addr,unsigned char date) unsigned char shi,ge; shi=date/10; ge=date%10; LCD_WRITE_COM(0x80+0x40+addr); LCD_WRITE_DATA(0x30+shi); LCD_WRITE_DATA(0x30+ge); void LCD_WRITE_NYR(unsigned char addr,unsigned char date) char shi,ge; shi=date/10; ge=date%10; LCD_WRITE_COM(0x80+addr); LCD_WRITE_DATA(0x30+shi); LCD_WRITE_DATA(0x30+ge);void LCD_WRITE_WEEK(unsigned char week) LCD_WRITE_COM(0x80+12); switch(week) case 1: LCD_WRITE_DATA(M);delay(5); LCD_WRITE_DATA(O);delay(5); LCD_WRITE_DATA(N);break; case 2: LCD_WRITE_DATA(T);delay(5); LCD_WRITE_DATA(U);delay(5); LCD_WRITE_DATA(E);break; case 3: LCD_WRITE_DATA(W);delay(5); LCD_WRITE_DATA(E);delay(5); LCD_WRITE_DATA(D);break; case 4: LCD_WRITE_DATA(T);delay(5); LCD_WRITE_DATA(H);delay(5); LCD_WRITE_DATA(U);break; case 5: LCD_WRITE_DATA(F);delay(5); LCD_WRITE_DATA(R);delay(5); LCD_WRITE_DATA(I);break; case 6: LCD_WRITE_DATA(S);delay(5); LCD_WRITE_DATA(A);delay(5); LCD_WRITE_DATA(T);break; case 7: LCD_WRITE_DATA(S);delay(5); LCD_WRITE_DATA(U);delay(5); LCD_WRITE_DATA(N);break; void LCD_WRITE_TEMP(uchar addr,uchar temp)char shi,ge; shi=temp/10; ge=temp%10; LCD_WRITE_COM(0x80+0x40+addr); LCD_WRITE_DATA(0x30+shi); LCD_WRITE_DATA(0x30+ge);void LCD_INITIAL() unsigned char i;LCD_WRITE_COM(0x38); LCD_WRITE_COM(0x0c); LCD_WRITE_COM(0x06); /经本人试验证明1602初始化不清屏也可实现LCD_WRITE_COM(0x80);for(i=0;i16;i+) LCD_WRITE_DATA(str1i); delay(5);LCD_WRITE_COM(0x80+0x40);/液晶第二行显示for(i=0;i0;i-) SCLK=0; ACC=addr; DIO=ACC0; addr=1; SCLK=1; for(i=8;i0;i-) SCLK=0; ACC=date; DIO=ACC0; date=1; SCLK=1; RST=0;unsigned char READ_1302(unsigned char addr) unsigned char i,date1,date2; RST=0; SCLK=0; RST=1; for(i=8;i0;i-) SCLK=0; ACC=addr; DIO=ACC0; addr=1; SCLK=1; for(i=8;i0;i-) ACC7=DIO; SCLK=1; ACC=1; SCLK=0; RST=0; date1=ACC; date2=date1/16; date1=date1%16; date1=date1+date2*10; return(date1) ;void INITIAL_1302() WRITE_1302(WRITE_SECOND,READ_1302(READ_SECOND)&0x7f); /启动DS1302/*键盘扫描部分*/void keyscan() if(key0=0)/确认功能键按下 delay(20); if(key0=0)/去抖 while(!key0);/释放 num+; switch(num) case 1: flag=1; /修改时间，禁止从DS1302读数据 TR0=0; /定时器关 LCD_WRITE_COM(0x0f); /光标开始闪烁 LCD_WRITE_COM(0x80+3);/第一次按下，光标定位到年位置 break; case 2: LCD_WRITE_COM(0x80+6);/第二次按下，光标定位到月位置 break; case 3: LCD_WRITE_COM(0x80+9);/第三次按下，光标定位到日位置 break; case 4: LCD_WRITE_COM(0x80+12);/第四次按下，光标定位到星期位置 break; case 5: LCD_WRITE_COM(0x80+0x40+4);/第五次按下，光标定位到时位置 break; case 6: LCD_WRITE_COM(0x80+0x40+7);/第六次按下，光标定位到分位置 break; case 7: LCD_WRITE_COM(0x80+0x40+10);/第七次按下，光标定位到秒位置 break; case 8: num=0;/第八次按下，记录清零 LCD_WRITE_COM(0x0c);/不显示光标 WRITE_1302(WRITE_PROTECT,0x00); /允许写操作 WRITE_1302(0x80,(second/10*16)+second%10);/将调节后的秒写入DS1302 WRITE_1302(0x82,(minute/10*16)+minute%10);/将调节后的分写入DS1302 WRITE_1302(0x84,(hour/10*16)+hour%10);/将调节后的时写入DS1302 WRITE_1302(0x8a,(week/10*16)+week%10);/将调节后的星期写入DS1302 WRITE_1302(0x86,(day/10*16)+day%10);/将调节后的日写入DS1302 WRITE_1302(0x88,(month/10*16)+month%10);/将调节后的月写入DS1302 WRITE_1302(0x8c,(year/10*16)+year%10);/将调节后的年写入DS1302 WRITE_1302(WRITE_PROTECT,0x80); /开写保护 flag=0; /时间修改完毕，允许液晶从DS1302读数据 TR0=1; break; if(num!=0) if(key1=0)/确认增大键按下 delay(20); if(key1=0)/增大键确实按下 while(!key1);switch(num) case 1:year+;/调节年 if(year=100)year=0; LCD_WRITE_NYR(3,year);/将调节后的年送入液晶显示 LCD_WRITE_COM(0x80+3);/光标回到指定处break; case 2: month+;/调节月 if(month=13)month=0; LCD_WRITE_NYR(6,month);/将调节后的月送入液晶显示 LCD_WRITE_COM(0x80+6);/光标回到指定处break; case 3: day+;/调节日 if(day=32)day=0; LCD_WRITE_NYR(9,day);/将调节后的日送入液晶显示 LCD_WRITE_COM(0x80+9);/光标回到指定处 break; case 4: week+; if(week=8)week=0; LCD_WRITE_WEEK(week);/将调节后的星期送入液晶显示 LCD_WRITE_COM(0x80+12);/光标回到指定处 break; case 5: hour+; if(hour=24)hour=0; LCD_WRITE_SFM(4,hour);/将调节后的小时送入液晶显示 LCD_WRITE_COM(0x80+0x40+4);/光标回到指定处 break; case 6: minute+; if(minute=60)minute=0; LCD_WRITE_SFM(7,minute);/将调节后的分送入液晶显示 LCD_WRITE_COM(0x80+0x40+7);/光标回到指定处 break; case 7: second+; if(second=60)second=0; LCD_WRITE_SFM(10,second);/将调节后的秒送入液晶显示 LCD_WRITE_COM(0x80+0x40+10);/光标回到指定处 break;default:break; if(key2=0)/确认减小键按下 delay(20); if(key2=0)/减小键确实按下 while(!key2);switch(num) case 1: year-;/调节年 if(year=-1)year=99; LCD_WRITE_NYR(3,year); LCD_WRITE_COM(0x80+3); break; case 2: month-;/调节月 if(month=-1)month=12; LCD_WRITE_NYR(6,month); LCD_WRITE_COM(0x80+6); break; case 3: day-;/调节日 if(day=-1)day=31; LCD_WRITE_NYR(9,day); LCD_WRITE_COM(0x80+9); break; case 4: week-;/调节星期 if(week=0)week=7; LCD_WRITE_WEEK(week); LCD_WRITE_COM(0x80+12); break; case 5: hour-;/调节时 if(hour=-1)hour=23; LCD_WRITE_SFM(4,hour); LCD_WRITE_COM(0x80+0x40+4); break; case 6: minute-;/调节分 if(minute=-1)minute=59; LCD_WRITE_SFM(7,minute); LCD_WRITE_COM(0x80+0x40+7); break; case 7: second-;/调节秒 if(second=-1)second=59; LCD_WRITE_SFM(10,second); LCD_WRITE_COM(0x80+0x40+10); break; default:break; /*蜂鸣器部分*/*-定时器0初始化-*/void INITIAL_TEMER0() TMOD=0x01; TH0=(65536-20000)/256; TL0=(65536-20000)%256; /晶振频率12MHZ 定时20ms作右 TR0=1; EA=1; ET0=1; /*-*/void timer0()interrupt 1