电子钟e程序

#include

#define uchar unsigned char

#define uint unsigned int

sbit DATE=P3^7; //数据口

sbit CLK=P3^6; //时钟口

sbit RST=P1^3;

sbit SCLK=P1^1;

sbit IO=P1^2;

sbit key1=P3^2;

sbit key2=P3^3;

sbit key3=P3^4;

//sbit ground=P3^3;

uchar sum1=0,i=0,days;

uchar table[]={"日期年月日"};

uchar table1[]={"时间点分秒"};

uchar table3[]={" "};

uchar table4[]={"电子万年日历"};

uchar table5[]={"星期："};

uchar *table2[]={"---","星期日","星期一","星期二","星期三","星期四","星期五","星期六"}; uchar datetime[7];//读取的日期时间

uchar sum,j,week1,ground;

uint temp;

void delay(uint z);//延时函数;

void write_a_byte_to_1302(uchar x) ;

uchar week(uchar,uchar,uchar); // 星期转换

uchar read_a_byte_from_1302();

uchar read_date(uchar addr); //读取数据

void gettime();

void format_datetime(uchar y,uchar *a);

void delay(uint z)//延时函数

{

uint x,y;

for(x=0;x

for(y=0;y<120;y++);

}

void delay_nus(uchar k)

{

while(k--);

}

void write_a_byte_to_1302(uchar x)

{

uchar i;

for(i=0;i<8;i++)

{

IO=x&1;

SCLK=0;

delay_nus(10);

SCLK=1;

SCLK=0;

x>>=1;

}

}

uchar read_a_byte_from_1302()

{

uchar j,b=0;

for(j=0;j<8;j++)

{

b|=_crol_((uchar)IO,j); //右移j位；

SCLK=1;

delay_nus(10);

SCLK=0;

}

return b/16*10+b%16;

}

uchar read_date(uchar addr) //读取数据{

uchar date;

RST=0;

SCLK=0;

RST=1;

write_a_byte_to_1302(addr);

delay_nus(10);

date=read_a_byte_from_1302();

delay_nus(10);

SCLK=1;

RST=0;

return date;

}

void write_date_to_1302(uchar addr,uchar date) {

RST=0;

SCLK=0;

RST=1;

write_a_byte_to_1302(addr);

delay_nus(10);

write_a_byte_to_1302((date/10<<4)|(date%10));

delay_nus(10);

SCLK=1;

RST=0;

}

void gettime()

{

uchar i,addr=0x81;

for(i=0;i<8;i++)

{

datetime[i]=read_date(addr);

addr+=2;

}

}

void send_byte(uchar byte)

{

uchar i;

for(i=0;i<8;i++)

{

CLK=0;

DATE=byte&0x80;

CLK=1;

byte<<=1;

}

}

void write_byte(uchar date) //写字节函数

{

send_byte(0xfa);

delay(3);

send_byte(date&0xf0);

send_byte((date&0x0f)<<4);

}

void write_com(uchar com)

{

send_byte(0xf8);

delay(3);

send_byte(com&0xf0);

send_byte((com&0x0f)<<4);

}

1.void init_lcd()

{

write_com(0x20); // 基本指令，8位数据模式

write_com(0x0f);

write_com(0x01); // 清除显示，并且设定地址指针为00H

write_com(0x06); // 指定在资料的读取及写入时，设定游标的移动方向及指定显示的移位

write_com(0x0c);// 显示开,游标关,反白关

write_com(0x03); //地址计数器归零

}

void display(uchar *p,uchar wei,uchar addr) //显示函数

{

write_com(addr);

for(i=0;i

{

write_byte(p[i]);

}

}

void format_datetime(uchar y,uchar *a)

{

a[0]=y/10+'0';

a[1]=y%10+'0';

}

void keyscan()

{

write_date_to_1302(0x8e,0x00);

if(!key1)

{

delay(10);

if(!key1)

{

sum1++;

}

}

else if(!key2 && sum1 )

{

delay(10);

if(!key2)

switch(sum1)

{

case 1: if(++datetime[6]>=100) datetime[6]=0;

write_date_to_1302(0x8c,datetime[6]);

break;

case 2: if(++datetime[4]>=13) datetime[4]=1;

write_date_to_1302(0x88,datetime[4]);

break;

case 3: if(datetime[4]>0&&datetime[4]<8&&datetime[4]%2!=0)

days=31;

else

if(datetime[4]>7&&datetime[4]<13&&datetime[4]%2==0)

days=31;

else if(datetime[4]>3&&datetime[4]<7&&datetime[4]%2==0)

days=30;

else if(datetime[4]>8&&datetime[4]<12&&datetime[4]%2!=0)

days=30;

else

if((datetime[6]+2000)%4==0&&(datetime[6]+2000)%100!=0||(datetime[6]+2000)%400==0&&(d atetime[4]>0&&datetime[4]<3&&datetime[4]%2==0))

days=29;

else

days=28;

if(++datetime[3]>=(days+1)) datetime[3]=1;

write_date_to_1302(0x86,datetime[3]);

break;

case 4: if(++datetime[2]>=24) datetime[2]=0;

write_date_to_1302(0x84,datetime[2]);

break;

case 5: if(++datetime[1]>=60) datetime[1]=0;

write_date_to_1302(0x82,datetime[1]);

break;

default: break;

}

}

else if(!key3 && sum1)

{

delay(10);

if(!key3)

{

switch(sum1)

{

case 1: if(datetime[6]--<=0) datetime[6]=99;

write_date_to_1302(0x8c,datetime[6]);

break;

case 2: if(datetime[4]--<=1) datetime[4]=12;

write_date_to_1302(0x88,datetime[4]);

break;

case 3: if(datetime[4]>0&&datetime[4]<8&&datetime[4]%2!=0)

days=31;

else

if(datetime[4]>7&&datetime[4]<13&&datetime[4]%2==0)

days=31;

else if(datetime[4]>3&&datetime[4]<7&&datetime[4]%2==0)

days=30;

else if(datetime[4]>8&&datetime[4]<12&&datetime[4]%2!=0)

days=30;

else

if((datetime[6]+2000)%4==0&&(datetime[6]+2000)%100!=0||(datetime[6]+2000)%400==0&&(d atetime[4]>0&&datetime[4]<3&&datetime[4]%2==0))

days=29;

else

days=28;

if(datetime[3]--<=1) datetime[3]=days;

write_date_to_1302(0x86,datetime[3]);

if(datetime[5]+(temp%7)<=0) datetime[5]=7;

write_date_to_1302(0x8a,datetime[5]);

break;

case 4: if(datetime[2]--<=0) datetime[2]=23;

write_date_to_1302(0x84,datetime[2]);

break;

case 5: if(datetime[1]--<=0) datetime[1]=59;

write_date_to_1302(0x82,datetime[1]);

break;

default: break;

}

}

}

if(sum1==1)

display(table3,2,0x92);

else if(sum1==2)

display(table3,2,0x94);

else if(sum1==3)

display(table3,2,0x96);

else if(sum1==4)

display(table3,2,0x8a);

else if(sum1==5)

display(table3,2,0x8c);

delay(10);

if(sum1>=6)

{

sum1=0;

datetime[5]= week( datetime[6], datetime[4], datetime[3]);

write_date_to_1302(0x8a,datetime[5]);

}

write_date_to_1302(0x8e,0x80);

}

uchar week(uchar y,uchar m, uchar d)

{

if(m==1)

{

m=13;

y--;

}

if(m==2)

{

m=14;

y--;

}

week1=(d+2*m+3*(m+1)/5+(y+2000)+(y+2000)/4-(y+2000)/100+(y+2000)/400)%7; //基姆拉尔森计算公式

switch(week1)

{

case 0: j=2; break;

case 1: j=3; break;

case 2: j=4; break;

case 3: j=5; break;

case 4: j=6; break;

case 5: j=7; break;

case 6: j=1; break;

default: break;

}

return j;

}

void main()

{

ground=0;

init_lcd();

write_date_to_1302(0x8e,0x00);

write_date_to_1302(0x80,0x00);

write_date_to_1302(0x82,0x00);

write_date_to_1302(0x84,0x00);

write_date_to_1302(0x86,0x0b);

write_date_to_1302(0x88,0x0b);

write_date_to_1302(0x8a,0x06);

write_date_to_1302(0x8c,0x0a);

write_date_to_1302(0x8e,0x80);

while(1)

{

gettime();

keyscan();

format_datetime(datetime[6],table+4);

format_datetime(datetime[4],table+8);

format_datetime(datetime[3],table+12);

format_datetime(datetime[2],table1+4);

format_datetime(datetime[1],table1+8);

format_datetime(datetime[0],table1+12);

display(table4,12,0x81);

display(table,16,0x90);

display(table1,16,0x88);

display(table5,6,0x98);

display(table2[datetime[5]],6,0x9b);

}

}