基于单片机的数字电子时钟 - 图文

}

if((i%4==0&&i0!=0)||(i@0==0)) { } else { }

return 0; return 1;

void main() {

unsigned char i,j=0; int temp; float temperature; char displaytemp[16]; unsigned char shishi[16]; lcdinit(); delay(20); TMOD |= 0x01; EA=1; ET0=1; TR0=1;

ds1302init(); ds1302read();

if((time_buf1[2]+time_buf1[7])==0) ds1302write(); gongneng= 1; jia = 1; jian = 1; while(1) {

if(i==0) {

if(ReadTempFlag==1) {

ReadTempFlag=0; temp=ReadTemperature();

temperature=(float)temp*0.0625; sprintf(displaytemp,\ lcdwrite_com(0x80+12); for(i=0;i<4;i++) {

lcdwrite_date(displaytemp[i]);

14

}

}

}

ds1302read();

sprintf(shishi,\lcdwrite_com(0x80); for(i=0;i<10;i++) { }

sprintf(shishi,\lcdwrite_com(0x80+0x40); for(i=0;i<8;i++) { } i=0;

lcdwrite_date(shishi[i]); lcdwrite_date(shishi[i]);

if(gongneng==0)//按键 {

delay(10); if(gongneng==0) {

i++;

while(!gongneng); if(i==1)//分 { }

if(i==2)//时 { }

if(i==3)//日 { }

if(i==4)//月 { }

if(i==5)//年 {

lcdwrite_com(0x80+3);

15

lcdwrite_com(0x80+6); lcdwrite_com(0x80+9); lcdwrite_com(0xc0+1); lcdwrite_com(0xc0+4); lcdwrite_com(0x0f);

} {

}

} if(i==6) { }

i=0;

lcdwrite_com(0x0c);

if(i>=1)

if(jia==0) {

delay(5); if(jia==0) {

while(!jia); if(i==1)//分 { }

if(i==2)//时 {

j=time_buf1[4]; j++; if(j==24) { }

time_buf1[4]=j;

sprintf(shishi,\

16

j=0; j=time_buf1[5]; j++; if(j==60) { }

time_buf1[5]=j;

sprintf(shishi,\lcdwrite_com(0xc0+3); for(j=0;j<2;j++) { }

lcdwrite_com(0xc0+4); lcdwrite_com(0x0f);

lcdwrite_date(shishi[j]); j=0;

}

lcdwrite_com(0xc0); for(j=0;j<2;j++) { }

lcdwrite_com(0xc0+1); lcdwrite_com(0x0f);

lcdwrite_date(shishi[j]);

if(i==3)//日 {

j=time_buf1[3]; j++;

if(panduanyue((int)time_buf1[2])==1) { }

else if(panduanyue((int)time_buf1[2])==2) { }

else if(panduanyue((int)time_buf1[3])==3) {

if(runnian(2000+(int)time_buf1[1])==1) { } else {

if(j==29) {

j=28;

17

{ }

time_buf1[3]=j;

j=29;

if(j==30) if(j==31) { }

time_buf1[3]=j;

j=30; if(j==32) { }

time_buf1[3]=j;

j=31;