#includereg52.h>

#define uchar unsigned char

#define uint unsigned int

uchar code tab1[]="DS1302";

uchar code tab2[]="Week-";

uchar code tab3[]="0123456789";

uchar xdw[13];

sbit SCK=P2^0;

sbit AB=P2^1;

sbit RS=P2^2;

sbit RW=P2^3;

sbit EN=P2^4;

sbit RST=P2^5;

sbit SCLK=P2^6;

sbit DS=P2^7;

void DS1302_xie_hs(uchar dat);

void DS1302_xie_1byte

(uchar add,uchar tdat);

uchar DS1302_du_hs(void);

uchar DS1302_du_1byte(uchar add);

void LCM1602_xie_cmd_hs(uchar cmd);

void LCM1602_xie_dat_hs(uchar dat);

void display();void dushuju();

void inti();void delay(uint z);

void DS1302_xie_hs(uchar dat){uint i,num;num=dat;for(i=0;i8;i++){DS=(bit)(num0x01);SCLK=1;SCLK=0;num>>=1;}}void DS1302_xie_1byte(uchar add,uchar tdat){RST=0;SCLK=0;RST=1;DS1302_xie_hs(add);DS1302_xie_hs(tdat);SCLK=1;RST=0;}uchar DS1302_du_hs(void){uchar i,num;for(i=0;i8;i++){num>>=1;if(DS)num|=0x80;SCLK=1;SCLK=0;}return(num);}uchar DS1302_du_1byte(uchar add){uchar tmp;RST=0;SCLK=0;RST=1;DS1302_xie_hs(add);tmp=DS1302_du_hs();SCLK=1;RST=0;return(tmp);}void LCM1602_xie_cmd_hs(uchar cmd){uchar i,num;RS=0;RW=0;EN=0;RS=0;RW=0;EN=1;num=cmd;for(i=0;i8;i++){AB=(bit)(num0x01);SCK=0;SCK=1;num>>=1;}EN=0;}void LCM1602_xie_dat_hs(uchar dat){uchar i,num;RS=0;RW=0;EN=0;RS=1;RW=0;EN=1;num=dat;for(i=0;i8;i++){AB=(bit)(num0x01);SCK=0;SCK=1;num>>=1;}EN=0;}void display(){uchar i,j,tmp;LCM1602_xie_cmd_hs(0x80+0x08);for(i=0;i3;i++){for(j=0;j2;j++){LCM1602_xie_dat_hs(tab3[xdw[i*2+j]]);delay(2);}}}void delay(uint z){uint x,y;for(x=z;x>0;x--)for(y=110;y>0;y--);}void inti(){RS=0;RW=0;EN=0;SCLK=0;LCM1602_xie_cmd_hs(0x38);LCM1602_xie_cmd_hs(0x0c);LCM1602_xie_cmd_hs(0x06);DS1302_xie_1byte(0x8e,0x00);DS1302_xie_1byte(0x80,0x00);DS1302_xie_1byte(0x82,0x29);DS1302_xie_1byte(0x84,0x22);DS1302_xie_1byte(0x86,0x24);DS1302_xie_1byte(0x88,0x01);DS1302_xie_1byte(0x8a,0x02);DS1302_xie_1byte(0x8c,0x12);DS1302_xie_1byte(0x8e,0x80);}void dushuju(){uchar seg;seg=DS1302_du_1byte(0x8d);xdw[0]=seg>>4;xdw[1]=seg0x0f;seg=DS1302_du_1byte(0x89);xdw[2]=seg>>4;xdw[3]=seg0x0f;seg=DS1302_du_1byte(0x87);xdw[4]=seg>>4;xdw[5]=seg0x0f;seg=DS1302_du_1byte(0x85);xdw[6]=seg>>4;xdw[7]=seg0x0f;seg=DS1302_du_1byte(0x83);xdw[8]=seg>>4;xdw[9]=seg0x0f;seg=DS1302_du_1byte(0x81);xdw[10]=seg>>4;xdw[11]=seg0x0f;seg=DS1302_du_1byte(0x8b);xdw[12]=seg0x0f;}void main(){inti();while(1){dushuju();display();}}