萌新程序，如果有错误望见谅。
仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
单片机源程序如下:
- #include<reg51.h>
- #include<intrins.h>
- #define uint unsigned int
- #define uchar unsigned char
- sbit rs=P1^0;
- sbit rw=P1^1;
- sbit e=P1^2;
- sbit RST=P1^6;
- sbit SCK=P1^4;
- sbit IO=P1^5;
- sbit set=P3^2;
- sbit add=P3^3;
- sbit dec=P3^4;
- uint m,f,h,t,a,mode,c;
- uchar shu1[8]={6,5,4,3,2,7,1};
- uchar shu2[8];
- void delay_LCD(uint z)
- {
- uint x,y;
- for(x=z;x>0;x--)
- for(y=110;y>0;y--);
- }
- void com(uchar com)
- {
- rs=0;
- e=0;
- rw=0;
- P0=com;
- delay_LCD(1);
- e=1;
- delay_LCD(1);
- e=0;
- }
- void shu(uchar shu)
- {
- rs=1;
- e=0;
- rw=0;
- P0=shu;
- delay_LCD(1);
- e=1;
- delay_LCD(1);
- e=0;
- }
- void chu( )
- {
- com(0x38);
- com(0x0c);
- com(0x01);
- com(0x06);
- }
- ds1302_read(uchar add)
- {
- uint i,m1,m;
- RST=0; _nop_();
- SCK=0; _nop_();
- RST=1;
- for(i=0;i<8;i++)
- {
- IO=add&0x01;
- add=add>>1;
- SCK=1;_nop_();
- SCK=0;_nop_();
- }
- for(i=0;i<8;i++)
- {
- m1=IO;
- m=(m>>1)|(m1<<7);
- SCK=1;_nop_();
- SCK=0;_nop_();
- }
- RST=0;_nop_();
- SCK=1;
- _nop_();IO = 0;
- _nop_();IO = 1;
- _nop_();
- return m;
- }
- void ds1302_write(uchar add,uchar m)
- {
- uchar i;
- RST=0;
- _nop_();
- SCK=0;
- _nop_();
- RST=1;
- for(i=0;i<8;i++)
- {
- IO=add&0x01;
- add=add>>1;
- SCK=1;
- _nop_();
- SCK=0;
- _nop_();
- }
- for(i=0;i<8;i++)
- {
- IO=m&0x01;
- m=m>>1;
- SCK=1;
- _nop_();
- SCK=0;
- _nop_();
- }
- RST=0;
- _nop_();
- }
- read_ds1302()
- {
- uchar i;
- shu1[6]=ds1302_read(0x81)&0x7f;
- shu1[5]=ds1302_read(0x83);
- shu1[4]=ds1302_read(0x85);
- shu1[3]=ds1302_read(0x87);
- shu1[2]=ds1302_read(0x89);
- shu1[7]=ds1302_read(0x8b);
- shu1[1]=ds1302_read(0x8d);
- for(i=1;i<8;i++)
- {
- shu2[i]=(shu1[i]>>4)*10+(shu1[i]&0x0f);
- }
- }
- void ds1302_init()
- {
- uint b;
- RST=0;
- SCK=0;
- ds1302_write(0x8e,shu1[b]);
- ds1302_write(0x80,shu1[b]);
- ds1302_write(0x82,shu1[b]);
- ds1302_write(0x84,shu1[b]);
- ds1302_write(0x8a,shu1[b]);
- ds1302_write(0x86,shu1[b]);
- ds1302_write(0x88,shu1[b]);
- ds1302_write(0x8c,shu1[b]);
- ds1302_write(0x8e,shu1[b]);
- }
- uchar code Data_table[7][3]={"Mon","Tue","Wed","Thu","Fri","Sat","Sun"};
- code uchar table_week[12]=(0,3,3,6,1,4,6,2,5,0,3,5);
- uchar Conver_week(uchar year,uchar month,uchar day)
- {
- uchar p1,p2,week;
- year+=0x64;
- p1=year/0x4;
- p2=year+p1;
- p2=p2%0x7;
- p2=p2+day+table_week[month-1];
- if(year%0x4==0&&month<3)p2-=1;
- week=p2%0x7;
- return week;
- }
- void main()
- {
- uchar xq,num;
- chu();
- while(1)
- {
- read_ds1302();
- com(0x82);
- shu(shu2[1]/10+0x30);
- shu(shu2[0]%10+0x30);
- shu(shu2[1]/10+0x30);
- shu(shu2[1]%10+0x30);
- shu('-');
- shu(shu2[2]/10+0x30);
- shu(shu2[2]%10+0x30);
- shu('-');
- shu(shu2[3]/10+0x30);
- shu(shu2[3]%10+0x30);
- com(0xc2);
- shu(shu2[4]/10+0x30);
- shu(shu2[4]%10+0x30);
- shu(':');
- shu(shu2[5]/10+0x30);
- shu(shu2[5]%10+0x30);
- shu(':');
- shu(shu2[6]/10+0x30);
- shu(shu2[6]%10+0x30);
- xq=Conver_week(shu2[1],shu2[2],shu2[3]);
- com(0x80+13);
- for(num=0;num<3;num++)
- { shu(Data_table[xq][num]);
- }
- }
- }
Keil代码与Proteus8.8仿真下载:
显示年月日.zip
(109.18 KB, 下载次数: 45)
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