µ¥Æ¬»úÔ­Àí¿Î³ÌÉè¼Æ»ùÓÚAT89C52µÄµç×ÓʱÖÓÉè¼Æ˵Ã÷

delay1ms(uchar time) //ÑÓʱ1ms { uchar i,j;

for(i=0;i

//LCDÇý¶¯²¿·Ö enable() { rs=0; rw=0; e=0;

delay1ms(3); e=1; }

write2(uchar i) { P0=i; rs=1; rw=0; e=0;

delay1ms(2); e=1; }

write1(uchar data *address,m) { uchar i,j;

for(i=0;i

//LCDÏÔʾ lcdshow()

{ P0=0XC; //ÏÔʾÆ÷¿ª¡¢¹â±ê¹Ø enable();

P0=0x80; //µÚÒ»ÐÐ0~15 enable();

write1(time1,16);

P0=0xc1; //µÚ¶þÐÐ1~14 enable();

write1(time2,15); }

//DS1302¶Áд×Ó³ÌÐò write(uchar address) { uchar i; clk=0;

_nop_(); rst=1; _nop_();

for(i=0;i<8;i++) { dat=address&1; _nop_(); clk=1;

address>>=1; clk=0; } }

uchar read() { uchar i,j=0; for(i=0;i<8;i++) { j>>=1; _nop_(); clk=0; _nop_(); if(dat)

j|=0x80; _nop_(); clk=1; }

return(j); }

//²¿·ÖÏÔʾÊý¾Ý³õʼ»¯ timestart() {

time1[6]=time1[9]='-';

time1[2]='2',time1[3]='0'; time2[2]=time2[5]=':'; write(0xc1);

alarm[0]=read(); rst=0;

write(0xc3);

alarm[1]=read(); rst=0;

write(0xc5); time1[0]=read(); rst=0; }

//¶Áȡʱ¼ä readtime()

{ uchar i,m,n;

write(0x8d); //¶ÁÈ¡Äê·Ý

m=read(); rst=0;

time1[4]=m/16+0x30; time1[5]=m+0x30;

time1[15]=m+0x30;

for(i=7,n=0x89;i<11;i+=3,n-=2) //¶ÁÈ¡Ô·ݺÍÈÕÆÚ { write(n); m=read(); rst=0;

time1[i]=m/16+0x30; time1[i+1]=m+0x30; }

for(m=0,i=0,n=0x85;i<7;i+=3,n-=2,m++) //¶Áȡʱ,·Ö,Ãë { write(n);

time[m]=read(); //½«ÊµÊ±µÄʱ·ÖÃë¸øtime[] rst=0;

time2[i]=time[m]/16+0x30; time2[i+1]=time[m]+0x30; } }

baoshi() //Õûµã±¨Ê± { beep=1;

if(time[1]==0) if(time[2]==0)

{beep=0;delay(10);beep=1;} }

//ÄÖÖÓ²¿·Ö showalarm() { uchar i;

for(i=1;i<10;i++)

{beep=0;delay(1000);beep=1;} }

//¸ù¾ÝÈÕÆڵı䶯×Ô¶¯µ÷ÕûÐÇÆÚ

//ÉèÖÃʱ¼ä settime() {

uchar i=0x85,year,month,day,n;

time2[6]=time2[7]=0x30,time1[14]=time1[15]=0x20;

lcdshow(); while(1) {

P0=0x0e; //ÏÔʾÆ÷¿ªÏÔʾ¡¢¿ª¹â±ê enable();

P0=i; //¶¨¹â±ê enable(); P1=0xf0;

if(P1!=0Xf0) //Óа´Å¥°´Ï {

delay1ms(100); //ÑÓʱ0.1sÈ¥¶¶¶¯ if(P1!=0Xf0) {

j=7;

if(P1==0X70) //K1£¬ÉèÖÃʱÖÓ {

i+=3;

if(i==0x8e) i=0xc2;

else if(i>0xc5) i=0x85; }

else if(P1==0xb0) //K2£¬Éϵ÷ {

year=(time1[4]&0xf)*10+(time1[5]&0xf); month=(time1[7]&0xf)*10+(time1[8]&0xf); day=(time1[10]&0xf)*10+(time1[11]&0xf); if(i==0x85) {

year++; if(year>99) year=0;

if((year%4)!=0)

if(month==2&&day==29) day=28; }

else if(i==0x88) {

month++; if(month>12) month=1;

if(day>Day[month-1]) {

day=Day[month-1];

if(month==2&&(year%4)==0)

}

day=29;

} }

else if(i==0x8b) {

day++;

if(day>Day[month-1]) {

if(month==2&&(year%4)==0) {

if(day>29) day=1; }

if(month!=2) day=1; } }

else if(i==0xc2) {

n=(time2[0]&0xf)*10+(time2[1]&0xf); n++; if(n>23) n=0;

time2[0]=n/10+0x30; time2[1]=n+0x30; } else {

n=(time2[3]&0xf)*10+(time2[4]&0xf); n++; if(n>59) n=0;

time2[3]=n/10+0x30; time2[4]=n+0x30; }

time1[4]=year/10+0x30; time1[5]=year+0x30; time1[7]=month/10+0x30; time1[8]=month+0x30; time1[10]=day/10+0x30; time1[11]=day+0x30; lcdshow();

else if(P1==0xd0) //K3£¬Ïµ÷