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#include<reg51.h>
#define uchar unsigned char
uchar dot,time1[8],flash;
unsigned int tt;
uchar flag=0;
code seven_tab[15]= {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40,0x37,0x5c,0x77,0x73};//0--9,-,N,o,A,p
sbit rtc_clk=P3^6;
sbit rtc_data=P3^4;
sbit rtc_rst=P3^5;
sbit p2_2=P2^2;
sbit p2_3=P2^3;
sbit p2_4=P2^4;
sbit p3_0=P3^2;
sbit p2_7=P3^3;
sbit p2_6=P2^6;
sbit a0=ACC^0;
sbit a7=ACC^7;
void write_rtc(uchar date) //寫一字節
{
uchar i;
ACC=date;
for(i=8;i>0;i--)
{
rtc_data=a0;
rtc_clk=1;
rtc_clk=0;
ACC=ACC>>1;
}
}
uchar read_rtc() //讀一字節
{
uchar i;
for(i=8;i>0;i--)
{
ACC=ACC>>1;
a7=rtc_data;
rtc_clk=1;
rtc_clk=0;
}
return(ACC);
}
void write1302(uchar address,uchar date) //寫1302數據
{
rtc_rst = 0;
rtc_clk = 0;
rtc_rst = 1;
write_rtc(address);
write_rtc(date);
rtc_clk = 1;
rtc_rst = 0;
}
uchar read1302(uchar address)//讀1302數據
{
uchar temp;
rtc_rst = 0;
rtc_clk = 0;
rtc_rst = 1;
write_rtc(address);
temp=read_rtc();
rtc_clk = 1;
rtc_rst = 0;
return(temp);
}
void init1302() //1302初始化
{
write1302(0x8e,0x00); //寫操作
write1302(0x80,0x21); //寫秒
write1302(0x82,0x50); //寫分
write1302(0x84,0x14); //寫時
write1302(0x88,0x05); //寫月
write1302(0x86,0x22); //寫日
write1302(0x8a,0x02); //寫星期
write1302(0x8c,0x18); //寫年
write1302(0x8e,0x80); //寫保護
}
void get_time() //獲取1302的時間數據（時、分、秒），存入time1數組中
{
uchar d;
d = read1302(0x81);
time1[0] = d & 0x0f;
time1[1] = (d >> 4) & 0x0f;
d = read1302(0x83);
time1[3] = d & 0x0f;
time1[4] = (d >> 4) & 0x0f;
d = read1302(0x85);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[2]=time1[5]=10;
}
void get_date() //獲取1302的日期數據（日月年），存入time1數組中
{ uchar d;
d = read1302(0x87);
time1[0] = d & 0x0f;
time1[1] = (d >> 4) & 0x0f;
d = read1302(0x89);
time1[3] = d & 0x0f;
time1[4] = (d >> 4) & 0x0f;
d = read1302(0x8d);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[2]=time1[5]=10;
}
void get_week() //獲取1302的星期數據，存入time1數組中
{ uchar d;
d = read1302(0x8b);
time1[3] = d & 0x0f;
time1[4] =10;
time1[1]=10;
time1[6]=12;
time1[7]=11;
d = read1302(0x85);
if(((((d >>4 ) & 0x0f)==1)&(d & 0x0f)>=2)||((((d >>4 ) & 0x0f)==2)))
{
time1[0]=14;
}
else
time1[0]=13;
time1[2]=time1[5]=10;
}
void set_min() //設置分鐘顯示 ---分鐘---
{
uchar d;
d = read1302(0x83);
time1[3] = d & 0x0f;
time1[4] = (d >> 4) & 0x0f;
d = read1302(0x85);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[0]=time1[1]=time1[2]=time1[5]=10;
}
void set_hour() //設置時鐘顯示時鐘------
{
uchar d;
d = read1302(0x85);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[0]=time1[1]=time1[2]=time1[5]=time1[3]=time1[4]=10;
}
void set_day() //設置日期顯示 ------日期
{
uchar d;
d = read1302(0x87);
time1[0] = d & 0x0f;
time1[1] = (d >> 4) & 0x0f;
d = read1302(0x89);
time1[3] = d & 0x0f;
time1[4] = (d >> 4) & 0x0f;
d = read1302(0x8d);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[2]=time1[5]=10;
}
void set_month() //設置月份顯示 ---月份---
{
uchar d;
d = read1302(0x89);
time1[3] = d & 0x0f;
time1[4] = (d >> 4) & 0x0f;
d = read1302(0x8d);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[2]=time1[5]=time1[0]=time1[1]=10;
}
void set_year() //設置年份顯示年份------
{
uchar d;
d = read1302(0x8d);
time1[6] = d & 0x0f;
time1[7] = (d >>4 ) & 0x0f;
time1[3]=time1[4]=time1[2]=time1[5]=time1[0]=time1[1]=10;
}
void set_week() //設置星期顯示 No--星期---
{
uchar d;
d = read1302(0x8b);
time1[3] = d & 0x0f;
time1[6]=time1[4]=time1[2]=time1[5]=time1[0]=time1[1]=time1[7]=10;
}
/*void time0() interrupt 1 //使用T0定時器刷新數碼管顯示，刷新間隔為2ms
{
uchar i;
TR0=0;
TH0 = (65536 - 2000) / 256;
TL0 = (65536 - 2000) % 256;
TR0 = 1;
switch(i) //位選，選擇點亮的數碼管，
{
case(7): p2_2=0; p2_3=0; p2_4=0; break;//顯示第0位
case(6): p2_2=1; p2_3=0; p2_4=0; break;//顯示第1位
case(5): p2_2=0; p2_3=1; p2_4=0; break;//顯示第2位
case(4): p2_2=1; p2_3=1; p2_4=0; break;//顯示第3位
case(3): p2_2=0; p2_3=0; p2_4=1; break;//顯示第4位
case(2): p2_2=1; p2_3=0; p2_4=1; break;//顯示第5位
case(1): p2_2=0; p2_3=1; p2_4=1; break;//顯示第6位
case(0): p2_2=1; p2_3=1; p2_4=1; break;//顯示第7位
}
P1=seven_tab[time1[i]];
i++;
if(i==8)
i=0;
}
void init_timer0() //初始化T0定時器
{
TMOD = 0x01;
TH0 = (65536-2000) / 256;
TL0 = (65536-2000) % 256;
TR0 = 1;
ET0 = 1;
EA = 1;
}*/
void start() interrupt 0 //按下切屏鍵,切換時間,日期，星期；按下調節鍵，在調節分時日月年星期間切換
{
flag++;
if(flag>2)
{
flag=0;
}
}
void sart() interrupt 2
{
if(flag<3)
flag=3;
else
{
flag++;
if(flag>8)
flag=3;
}
}
void delay(uchar t) //延時函數
{
uchar j=0;
for(;t>0;t--)
for(j=0;j<125;j++);
}
void main()
{
uchar n,i,d,t;
/*init_timer0();*/
init1302();
IT0=1;
EX0=1;
EA=1;
IT1=1;
EX1=0;
while(1)
{
switch(flag)
{
case 0:get_time(); //調用子函數,把存入數組time的數據給顯示出來
break;
case 1:get_date(); //調用子函數,把存入數組date的數據給顯示出來
break;
case 2:get_week(); //調用子函數,把存入數組week的數據給顯示出來
break;
case 3:set_min(); //調整分
if(p2_6==0)
{
delay(1000);
if(p2_6==0)
{
n= read1302(0x83);
d = n & 0x0f;
t = (n >> 4) & 0x0f;
d++;
if(d>9)
{
d=0;
t++;
if(t>5)
{
t=0;
}
}
n=(0x0f&d)|(0xf0&(t<<4));
write1302(0x82,n);
delay(1000);
}
}
break;
case 4:set_hour(); //調整時
if(p2_6==0)
{
delay(1000);
if(p2_6==0)
{
n= read1302(0x85);
d = n & 0x0f;
t = (n >> 4) & 0x0f;
d++;
if(t==2)
{
if(d>3)
{
d=0;
t=0;
}
}
if(d>9)
{
d=0;
t++;
}
n=(0x0f&d)|(0xf0&(t<<4));
write1302(0x84,n);
delay(1000);
}
}
break;
case 5:set_day(); //調整日
if(p2_6==0)
{
delay(1000);
if(p2_6==0)
{
n= read1302(0x87);
d = n & 0x0f;
t = (n >> 4) & 0x0f;
d++;
if(t==3)
{
if(d>1)
{
d=1;
t=0;
}
}
if(d>9)
{
d=0;
t++;
}
n=(0x0f&d)|(0xf0&(t<<4));
write1302(0x86,n);
delay(1000);
}
}
break;
case 6:set_month(); //調整月
if(p2_6==0)
{
delay(1000);
if(p2_6==0)
{
n= read1302(0x89);
d = n & 0x0f;
t = (n >> 4) & 0x0f;
d++;
if(t==1)
{
if(d>2)
{
d=1;
t=0;
}
}
if(d>9)
{
d=0;
t++;
}
n=(0x0f&d)|(0xf0&(t<<4));
write1302(0x88,n);
delay(1000);
}
}
break;
case 7:set_year(); //調整年
if(p2_6==0)
{
delay(1000);
if(p2_6==0)
{
n= read1302(0x8d);
d = n & 0x0f;
t = (n >> 4) & 0x0f;
d++;
if(d>9)
{
d=0;
t++;
if(t>9)
{
t=0;
}
}
n=(0x0f&d)|(0xf0&(t<<4));
write1302(0x8c,n);
delay(1000);
}
}
break;
case 8:set_week(); //調整星期
if(p2_6==0)
{
delay(1000);
if(p2_6==0)
{
n= read1302(0x8b);
d = n & 0x0f;
d++;
if(d>7)
{
d=1;
}
n=0x0f&d;
write1302(0x8a,n);
delay(1000);
}
}
break;
}
for(i=0;i<8;i++)
{
switch(i) //位選，選擇點亮的數碼管，
{
case(7): p2_2=0; p2_3=0; p2_4=0; break;//顯示第0位
case(6): p2_2=1; p2_3=0; p2_4=0; break;//顯示第1位
case(5): p2_2=0; p2_3=1; p2_4=0; break;//顯示第2位
case(4): p2_2=1; p2_3=1; p2_4=0; break;//顯示第3位
case(3): p2_2=0; p2_3=0; p2_4=1; break;//顯示第4位
case(2): p2_2=1; p2_3=0; p2_4=1; break;//顯示第5位
case(1): p2_2=0; p2_3=1; p2_4=1; break;//顯示第6位
case(0): p2_2=1; p2_3=1; p2_4=1; break;//顯示第7位
}
P1=seven_tab[time1[i]];
delay(2);
}
}
}

復制代碼

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