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[size=16.0000pt]1、DS1302模块 /*------------------寄存器地址宏定义------------*/ #define WRITE_SECOND 0x80 #define WRITE_MINUTE 0x82 #define WRITE_HOUR 0x84 #define WRITE_DAY 0x86 #define WRITE_MONTH 0x88 #define WRITE_YEAR 0x8C #define WRITE_PROTECT 0x8E #define WRITE_WEEK 0x8A #define WRITE_CURRENT 0x90 #define READ_SECOND 0x81 #define READ_MINUTE 0x83 #define READ_HOUR 0x85 #define READ_DAY 0x87 #define READ_MONTH 0x89 #define READ_WEEK 0x8B #define READ_YEAR 0x8D sbit RST=P1^4;//DS1302片选 sbit DIO=P1^3;//DS1302数据信号 sbit SCLK=P1^2;//DS1302时钟信号 sbit ACC_7=ACC^7;//位寻址寄存器定义 void INITIAL_1302();//DS1302初始化函数申明 unsigned char READ_1302(unsigned char addr);//DS1302读数据函数申明 void WRITE_1302(unsigned char addr,unsigned char date);//DS1302写数据函数申明 void WRITE_1302(unsigned char addr,unsigned char date)//地址、数据发送子程序 { unsigned char i,temp; RST=0;//RST引脚为低，数据传送中止 SCLK=0;//清零时钟总线 RST=1;//RST引脚为高，逻辑控制有效 for(i=8;i>0;i--)//发送地址，循环8次移位 { SCLK=0; temp=addr; DIO=(bit)(temp&0x01);//每次传送低字节 addr>>=1;//右移一位 SCLK=1; } for(i=8;i>0;i--)//发送数据 { SCLK=0; temp=date; DIO=(bit)(temp&0x01); date>>=1; SCLK=1; } RST=0; } unsigned char READ_1302(unsigned char addr)//读取数据 { unsigned char i,temp,date1,date2; RST=0; SCLK=0; RST=1; for(i=8;i>0;i--)//循环8次移位 { SCLK=0; temp=addr; DIO=(bit)(temp&0x01);//每次传送低字节 addr>>=1;//右移一位 SCLK=1; } for(i=8;i>0;i--) { ACC_7=DIO; SCLK=1; ACC>>=1; SCLK=0; } RST=0; date1=ACC; date2=date1/16;//数据进制转换 date1=date1%16;//十六进制转十进制 date1=date1+date2*10; return(date1) ; } void INITIAL_1302()//初始化DS1302 { WRITE_1302(WRITE_SECOND,READ_1302(READ_SECOND)&0x7f);//启动DS1302 } 2、LCD1302模块 sbit LCD_E=P1^7;//液晶使能端 sbit LCD_RS=P2^0;//液晶数据命令选择端 sbit LCD_RW=P2^1;//液晶读写选择端 unsigned char str1[]=" 20 - - "; unsigned char str2[]=" : : "; void delay(unsigned char z);//延时函数申明 void LCD_WRITE_COM(unsigned char com);//液晶写命令函数申明 void LCD_WRITE_DATA(unsigned char date);//液晶写数据函数申明 void LCD_WRITE_SFM(unsigned char addr,unsigned char date);//写时分秒函数申明 void LCD_WRITE_NYR(unsigned char addr,unsigned char date);//写年月日函数申明 void LCD_WRITE_WEEK(unsigned char week);//写星期函数申明 void LCD_INITIAL();//液晶初始化函数申明 void delay(unsigned char z)//延时函数 { unsigned char x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void LCD_WRITE_COM(unsigned char com)//写命令函数 { LCD_RS=0; LCD_RW=0; LCD_E=1; P0=com; delay(5); LCD_E=0; } void LCD_WRITE_DATA(unsigned char date)//写数据函数 { 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)//写时分秒函数 { unsigned char shi,ge; shi=date/10; ge=date%10;//分解2位数的十位和个位 LCD_WRITE_COM(0x80+0x40+addr);//设置显示位置 LCD_WRITE_DATA(0x30+shi);//送去液晶显示十位 LCD_WRITE_DATA(0x30+ge);//送去液晶显示个位 } void LCD_WRITE_NYR(unsigned char addr,unsigned char date)//写年月日函数 { char shi,ge; shi=date/10; ge=date%10;//分解2位数的十位和个位 LCD_WRITE_COM(0x80+addr);//设置显示位置 LCD_WRITE_DATA(0x30+shi);//送去液晶显示十位 LCD_WRITE_DATA(0x30+ge);//送去液晶显示个位 } void LCD_WRITE_WEEK(unsigned char week)//写液晶星期显示函数 { LCD_WRITE_COM(0x80+12);//设置显示位置 switch(week) { case 1: LCD_WRITE_DATA('S');delay(5); LCD_WRITE_DATA('U');delay(5); LCD_WRITE_DATA('N');break; case 2: LCD_WRITE_DATA('M');delay(5); LCD_WRITE_DATA('O');delay(5);; LCD_WRITE_DATA('N');break; case 3: LCD_WRITE_DATA('T');delay(5); LCD_WRITE_DATA('U');delay(5); LCD_WRITE_DATA('E');break; case 4: LCD_WRITE_DATA('W');delay(5); LCD_WRITE_DATA('E');delay(5); LCD_WRITE_DATA('D');break; case 5: LCD_WRITE_DATA('T');delay(5); LCD_WRITE_DATA('H');delay(5); LCD_WRITE_DATA('U');break; case 6: LCD_WRITE_DATA('F');delay(5); LCD_WRITE_DATA('R');delay(5); LCD_WRITE_DATA('I');break; case 7: LCD_WRITE_DATA('S');delay(5); LCD_WRITE_DATA('A');delay(5); LCD_WRITE_DATA('T');break; } } void LCD_INITIAL()//液晶初始化函数 { unsigned char i; LCD_WRITE_COM(0x38);//设置16*2显示，5*7点阵，8位数据接口 LCD_WRITE_COM(0x0c);//设置开显示，不显示光标 LCD_WRITE_COM(0x06);//写一个字符后地址指针加1 LCD_WRITE_COM(0x80);//液晶第一行显示 for(i=0;i<16;i++) { LCD_WRITE_DATA(str1); delay(5); } LCD_WRITE_COM(0x80+0x40);//液晶第二行显示 for(i=0;i<16;i++) { LCD_WRITE_DATA(str2); delay(5); } } [size=16.0000pt]3、按键模块 sbit key0=P3^2;//调时 sbit key1=P3^3;//增大 sbit key2=P3^4;//减小 char hour,minute,second,week,day,month,year; unsigned char num,flag; void keyscan() { if(key0==0)//确认调时按下 { delay(20); if(key0==0)//调时确实按下 { while(!key0);//释放 num++;//按下次数记录 switch(num) { case 1: flag=1;//修改时间，液晶禁止从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);//禁止写保护 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; //定时器开 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; } } } } } [size=16.0000pt]4、主模块 #include<reg51.h> #include<lcd1602.h> #include<ds1302.h> #include<keyscan.h> #include<fengmingqi.h> 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);//从DS1302读取秒送入液晶显示 minute=READ_1302(0x83); LCD_WRITE_SFM(7,minute);//从DS1302读取分送入液晶显示 hour=READ_1302(0x85); LCD_WRITE_SFM(4,hour);//从DS1302读取时送入液晶显示 week=READ_1302(0x8b); LCD_WRITE_WEEK(week);//从DS1302读取星期送入液晶显示 day=READ_1302(0x87); LCD_WRITE_NYR(9,day);//从DS1302读取日送入液晶显示 month=READ_1302(0x89); LCD_WRITE_NYR(6,month);//从DS1302读取月送入液晶显示 year=READ_1302(0x8d); LCD_WRITE_NYR(3,year);//从DS1302读取年送入液晶显示 } } }
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