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#include<reg52.h>
#include<intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit lcdrs=P2^4;
sbit lcdrw=P2^5;
sbit lcden=P2^6;
sbit key1=P2^2;
sbit key2=P2^1;
sbit key3=P2^0;
sbit FM=P1^0;
uchar counter,cycle;
uchar key_counter = 0; //定義光標閃爍以及修改操作數的標記
uchar second0,second1,minute0,minute1,hour0,hour1;
uchar table[][3]={"SUN","MON","TUE","WEN","THU","FRI","SAT"};
uchar year[4],day[2],month[2],date; //日期變量
uchar small_mon,leap_year;
uchar k;
void state() //檢查日期狀態函數(即判斷是否閏年，是否小月的函數)
{
switch(month[0]) //2，4，6，9，11月是小月
{
case 1:
if(month[1] == 1) //若是11月,則是小月
small_mon = 1;
else //若是1月，則不是小月
small_mon = 0; break;
case 2:
case 4:
case 6:
case 9: small_mon = 1; break;
default:small_mon = 0;break;
}
k=year[3]*1000+year[2]*100+year[1]*10+year[0];
if(k%4==0&&k%100!=0||k%400==0)
leap_year=1;
else
leap_year=0;
}
void Dater() //日期函數
{
state();
day[0]++;
date=(date+1)%7;
switch(day[0]) //日變化
{
case 10:
{
if(day[1] == 2 && month[0] == 2 && month[1] == 0) //20日的個位能到10，說明是閏年，把2月30號轉變為3月1號
{
day[0] = 1;
day[1] = 0;
month[0]++;
}
else //日期個位滿10進1
{
day[0] = 0;
day[1]++;
}
} break;
case 1:
{
if(day[1] == 3 && small_mon) //小月31號時把日期置為1號，月份+1
{
day[0] = 1;
day[1] = 0;
month[0]++;
}
} break;
case 2:
{
if(day[1] == 3)
{
day[0] = 1;
day[1] = 0;
month[0]++;
}
}break;
case 9:
{
if(day[1] == 2 && !leap_year && month[0] == 2 && month[1] == 0) //平年時，把2月29號變為3月1號
{
day[0] = 1;
day[1] = 0;
month[0]++;
}
} break;
default: break;
}
switch(month[0]) //月變化
{
case 10: //個位逢10進1
{
month[0] = 0;
month[1]++;
} break;
case 3: //當十位是1，個位逢3則年進1
{
if(month[1] == 1)
{
month[0] = 1;
month[1] = 0;
year[0]++;
}
} break;
}
if(year[0] > 9) //相應年變化
{
year[0] = 0;
year[1]++;
if(year[1] > 9)
{
year[1] = 0;
year[2]++;
if(year[2] > 9)
{
year[2] = 0;
year[3]++;
if(year[3] > 9)
year[3] = 0;
}
}
}
}
void clock() //時鐘函數
{
second0++;
if(second0 > 9)
{
second0 = 0;
second1++;
if(second1 > 5)
{
second1 = 0;
minute0++;
if(minute0 > 9)
{
minute0 = 0;
minute1++;
if(minute1 > 5)
{
minute1 = 0;
hour0++;
if(hour0 == 4 && hour1 == 2)
{
hour0 = hour1 = 0;
Dater();
}
else if(hour0 > 9)
{
hour0 = 0;
hour1++;
}
}
}
}
}
}
void delay(uint z) //延時函數ms
{
uint x,y;
for(x = z;x > 0;x--)
for(y = 110;y > 0;y--) ;
}
void write_com(uchar com) //寫指令到LCD液晶顯示
{
lcdrs = 0; //選擇指令寄存器
lcdrw = 0; //選擇寫
P0 = com; //把命令字送入P0口
delay(1); //延時，讓1602準備接收數據
lcden = 1; //使能線電平變化，命令送入1602的8位數據口
delay(1); //等待接收
lcden = 0;
}
void write_data(uchar data0) //寫數據到LCD液晶顯示
{
lcdrs = 1; //選擇數據寄存器
lcdrw = 0; //選擇寫
P0 = data0; //把數據送入P0口
delay(1); //延時，讓1602準備接收數據
lcden = 1; //使能線電平變化，數據送入8位數據口
delay(1); //等待接收
lcden = 0;
}
void disp_time() //顯示時間
{
write_com(0xc4); //設定顯示地址為下排第5位
write_data(hour1 + 0x30); //小時
write_data(hour0 + 0x30);
write_data(0x3a); //顯示冒號
write_data(minute1 + 0x30); //分鐘
write_data(minute0 + 0x30);
write_data(0x3a); //冒號
write_data(second1 + 0x30);//秒
write_data(second0 + 0x30);
if(key_counter != 0 ) //按功能鍵key1次數不為0
{
switch(key_counter)
{
case 1:
write_com(0x80+0x4b); //定位回光標閃爍位置，第二行第12位
break;
case 2:
write_com(0x80+0x48); //第二行第9位
break;
case 3:
write_com(0x80+0x45); //第二行第6位
break;
case 4:
write_com(0x80+0x0e); //第一行第15位
break;
case 5:
write_com(0x80+0x0b); //第一行第12位
break;
case 6:
write_com(0x80+0x08); //第一行第9位
break;
case 7:
write_com(0x80+0x03); //第一行第4位
break;
}
write_com(0x0f); //關光標
delay(150);
}
}
void disp_date() //顯示日期
{
write_com(0x81); //定義回第一行第2位
for(cycle = 0; cycle < 3;cycle++)// 顯示星期
write_data(table[date][cycle]);
write_data(0x20); //顯示空格
for(cycle = 0;cycle < 4;cycle++) //顯示年
write_data(year[3 - cycle]+0x30);
write_data(0x2d); //顯示'/'
write_data(month[1]+0x30); //顯示月
write_data(month[0]+0x30);
write_data(0x2d); //顯示'/'
write_data(day[1]+0x30); //顯示日
write_data(day[0]+0x30);
}
void di() //蜂鳴器發聲函數
{
FM=0;
delay(100);
FM=1;
}
void setting_detect() //按鍵掃描函數
{
if(key1==0)
{
delay(5);
if(key1==0) //消除抖動
{
while(!key1); //等待松手
TR0=0; //TRO==0
di(); //蜂鳴器滴
key_counter++; //功能鍵按下次數加一
do
{
disp_date(); //顯示星期+日期
disp_time(); //顯示時間
if(key1==0) //按鍵“切換”
{
delay(5);
if(key1==0)
{
while(!key1);
di();
key_counter++;
}
}
if(key2==0) //按鍵“加”
{
delay(5);
if(key2==0)
{
while(!key2);
di();
switch(key_counter) //判斷功能鍵按下次數
{
case 1: //一次則秒加一
second0++;
if(second0 > 9)
{
second0 = 0;
second1++;
if(second1 == 6)
second1 = 0;
} break;
case 2: //兩次則分加一
minute0++;
if(minute0 > 9)
{
minute0 = 0;
minute1++;
if(minute1 == 6)
minute1 = 0;
} break;
case 3: //三次則時加一
hour0++;
if(hour1 == 2 && hour0 > 3)
{
hour0 = 0;
hour1 = 0;
}
else if(hour0 > 9)
{
hour0 = 0;
hour1++;
}
break;
case 4: //四次則日加一
day[0]++;
if(day[0] == 2 && day[1] == 3)
{
day[0] = 1;
day[1] = 0;
}
if(day[0] == 10)
{
day[0] = 0;
day[1]++;
}
break;
case 5: //五次則月加一
month[0]++;
if(month[0] == 3 && month[1] == 1)
{
month[0] = 1;
month[1] = 0;
}
if(month[0] == 10)
{
month[0] = 0;
month[1] = 1;
}
break;
case 6: //六次則年加一
year[0]++;
if(year[0] > 9)
{
year[0] = 0;
year[1]++;
if(year[1] > 9)
{
year[1] = 0;
year[2]++;
if(year[2] > 9)
{
year[2] = 0;
year[3]++;
if(year[3] > 9)
year[3] = 0;
}
}
}
break;
case 7: //七次則星期加一
date=(date+1)%7;
break;
}
}
}
if(key3==0) //按鍵“減”
{
delay(5);
if(key3==0)
{
while(!key3);
di();
switch(key_counter)
{
case 1:
if(second0 == 0)
{
second0 = 9;
if(second1 == 0)
second1 = 5;
else
second1--;
}
else
second0--;
break;
case 2:
if(minute0 == 0)
{
minute0 = 9;
if(minute1 == 0)
minute1 = 5;
else
minute1--;
}
else
minute0--;
break;
case 3:
if(hour0 == 0)
{
if(hour1 == 0)
{
hour0 = 3;
hour1 = 2;
}
else
{
hour0 = 9;
hour1--;
}
}
else
hour0--;
break;
case 4:
if(day[0] == 1 && day[1] == 0)
day[1] = 3;
if(day[0] == 0)
{
day[0] = 9;
day[1]--;
}
else
day[0]--;
break;
case 5:
if(month[0] == 1 && month[1] == 0)
{
month[0] = 2;
month[1] = 1;
}
else if(month[0] == 0)
{
month[0] = 9;
month[1]--;
}
else
month[0]--;
break;
case 6:
if(year[0] == 0)
{
year[0] = 9;
if(year[1] == 0)
{
year[1] = 9;
if(year[2] == 0)
{
year[2] = 9;
if(year[3] == 0)
year[3] = 9;
else
year[3]--;
}
else
year[2]--;
}
else
year[1]--;
}
else
year[0]--;
break;
case 7:
date=(date+6)%7;
break;
}
}
}
}
while(key_counter != 8);
key_counter = 0; //退出設置時關掉光標顯示
TR0=1;
}
}
}
void Lcd_init() //顯示屏初始化
{
lcden = 0;
write_com(0x01); //清屏
write_com(0x02); //位置復位為左上方
write_com(0x06); //光標右移
write_com(0x0e); //顯示開，有光標，閃爍
write_com(0x38); //兩行，每行16字符，5*7點陣
}
void timer0() interrupt 1 //定時器
{
TH0 = (65536-39970)/256;
TL0 = (65536-39970)%6;
counter++;
if(counter == 25)
{
counter = 0;
clock();
}
}
void Timer_init() //定時器初始化
{
TMOD = 0x01;
TH0 = (65536-29995)/256;
TL0 = (65536-29995)%6;
EA = 1;
ET0 = 1;
TR0 = 1;
}
void Date_init() //日期初始化
{
date = 4;
day[0] = 0;
day[1] = 2;
month[0] = 4;
month[1] = 0;
year[0] = 7;
year[1] = 1;
year[2] = 0;
year[3] = 2;
}
void Time_init() //時間初始化
{
second0 = 0;
second1 = 3;
minute0 = 0;
minute1 = 3;
hour0 = 2;
hour1 = 1;
counter = 0;
}
void main() //主函數
{
Lcd_init();
Time_init();
Date_init();
Timer_init();
while(1)
{
disp_date();
disp_time();
setting_detect();
}
}

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