单片机时钟电路仿真.doc

#include #include sbit RS=P20;sbit RW=P21;sbit E=P22;sbit BF=P07;unsigned char flag;unsigned char time=time:;unsigned char mon=Mon;unsigned char tus=Tus;unsigned char wed=Wed;unsigned char thur=Thur;unsigned char fri=Fri;unsigned char sat=Sat;unsigned char sun=Sun;/寄存器宏定义#define WRITE_SECOND 0x80#define WRITE_MINUTE 0x82#define WRITE_HOUR 0x84#define READ_SECOND 0x81#define READ_MINUTE 0x83#define READ_HOUR 0x85#define WRITE_PROTECT 0x8E#define WRITE_DAY 0x86#define WRITE_MONTH 0x88#define WRITE_YEAR 0x8c#define WRITE_WEEK 0x8a#define READ_DAY 0x87#define READ_MONTH 0x89#define READ_YEAR 0x8d#define READ_WEEK 0x8b/位寻址寄存器定义sbit ACC_7 = ACC7;/管脚定义sbit SCLK = P31; / DS1302时钟信号7脚sbit DIO= P32; / DS1302数据信号6脚sbit CE = P30; / DS1302片选5脚/*函数功能：延时1ms*/void delay1ms()unsigned char i,j;for (i=0;i10;i+)for (j=0;j33;j+); /*函数功能：延时n毫秒入口参数：n*/void delaynms(unsigned char n)unsigned char i;for (i=0;i0; i- ) /循环8次移位SCLK = 0;temp = addr;DIO = (bit)(temp&0x01); /每次传输低字节addr = 1; /右移一位SCLK = 1;/发送数据for ( i=8; i0; i- )SCLK = 0;temp = dat;DIO = (bit)(temp&0x01);dat = 1;SCLK = 1;CE = 0;/*数据读取子程序*/unsigned char Read1302 ( unsigned char addr )unsigned char i,temp,dat1,dat2;CE=0;SCLK=0;CE = 1;/发送地址for ( i=8; i0; i- ) /循环8次移位SCLK = 0;temp = addr;DIO = (bit)(temp&0x01); /每次传输低字节addr = 1; /右移一位SCLK = 1;/读取数据for ( i=8; i0; i- )ACC_7=DIO;SCLK = 1;ACC=1;SCLK = 0;CE=0;dat1=ACC;dat2=dat1/16; /数据进制转换dat1=dat1%16; /十六进制转十进制dat1=dat1+dat2*10;return (dat1);/*初始化DS1302 */void initial1302(void)Write1302 (WRITE_PROTECT,0X00); /禁止写保护Write1302 (WRITE_SECOND,0x56); /秒位初始化Write1302 (WRITE_MINUTE,0x34); /分钟初始化Write1302 (WRITE_HOUR,0x12); /小时初始化Write1302 (WRITE_DAY,0x12);Write1302 (WRITE_MONTH,0x12);Write1302 (WRITE_YEAR,0x00);Write1302 (WRITE_WEEK,0x01);Write1302 (WRITE_PROTECT,0x80);/*lcd时钟显示子程序*/void display_clock()unsigned char i;WriteAddress(1,0);i=0;while(timei!=0)WriteData(timei);i+;delaynms(20);WriteAddress(0,5);WriteData(:);delaynms(20);WriteAddress(0,8);WriteData(:);delaynms(20);WriteAddress(1,9);WriteData(:);delaynms(20);WriteAddress(1,12);WriteData(:);delaynms(20);void display_year()unsigned char year,y1,y2;year=Read1302(READ_YEAR);y1=year/10+48;y2=year%10+48;WriteAddress(0,1);WriteData(2+48);delaynms(20);WriteAddress(0,2);WriteData(48);delaynms(20);WriteAddress(0,3);WriteData(y1);delaynms(20);WriteAddress(0,4);WriteData(y2);delaynms(20);void display_month()unsigned char month,m1,m2;month=Read1302(READ_MONTH);m1=month/10+48;m2=month%10+48;WriteAddress(0,6);WriteData(m1);delaynms(20);WriteAddress(0,7);WriteData(m2);delaynms(20);void display_day()unsigned char day,d1,d2;day=Read1302(READ_DAY);d1=day/10+48;d2=day%10+48;WriteAddress(0,9);WriteData(d1);delaynms(20);WriteAddress(0,10);WriteData(d2);delaynms(20);void display_week()unsigned char i,j,k,a,b,c,d,week;week=Read1302(READ_WEEK);WriteAddress(0,12);switch(week)case 1:while(moni!=0) WriteData(moni); i+;delaynms(20); ;break;case 2:while(tusj!=0)WriteData(tusj);j+;delaynms(20);break;case 3:while(wedk!=0)WriteData(wedk);k+;delaynms(20);break; case 4:while(thura!=0) WriteData(thura);a+;delaynms(20);break; case 5:while(frib!=0) WriteData(frib);b+;delaynms(20);break; case 6:while(satc!=0) WriteData(satc);c+;delaynms(20);break; case 7:while(sund!=0) WriteData(sund);d+;delaynms(20);break; default:;void display_hour()unsigned char hour,h1,h2;hour=Read1302(READ_HOUR);h1=hour/10+48;h2=hour%10+48;WriteAddress(1,7);WriteData(h1);delaynms(20);WriteAddress(1,8);WriteData(h2);delaynms(20);void display_second()unsigned char second,s1,s2;second=Read1302(READ_SECOND);s1=second/10+48;s2=second%10+48;WriteAddress(1,13);WriteData(s1);delaynms(20);WriteAddress(1,14);WriteData(s2);delaynms(20);void display_minute()unsigned char minute,m1,m2;minute=Read1302(READ_MINUTE);m1=minute/10+48;m2=minute%10+48;WriteAddress(1,10);WriteData(m1);delaynms(20);WriteAddress(1,11);WriteData(m2);delaynms(20); /*主函数*/void main()TR0=1;EA=1;ET0=1;IT0=1;TMOD=0x01;TH0=0x3c;TL0=0xb0;LcdInitiate();initial1302();displ