#include<reg51.h>
#include<lcd1602.h>
#define uchar unsigned char
#define uint unsigned int
uchar int_time;
uchar second;
uchar minute;
uchar hour;
uchar code date[]="H.I.T.CHINA";
uchar code time[]="TIME 23:59:55";
uchar second=55,minute=59,hour=23;
void clock_init()
{
uchar i,j;
for(i=0;i<16;i++)
{
write_data(date[i]);
}
write_com(0x80+0x40);
for(j=0;j<16;j++)
{
write_data(time[j]);
}
}
void clock_write( uint s,uint m,uint h)
{
write_sfm(0x47,h);
write_sfm(0x4a,m);
write_sfm(0x4d,s);
}
void main()\
{
init1602();
clock_init();
TMOD=0x01;
EA=1;
ET0=1;
TH0=(65536-46483)/256;
TL0=(65536-46483)%256;
TR0=1;
int_time=0;
second=55;
minute=59;
hour=23;
while(1)
{
clock_write(second,minute,hour);
}
}
void T0_interserve(void) interrupt 1 using 1
{ int_time++
if(int_time=0)
{
int_time=0;
second++;
}
if(second==60)
{
second=0;
hour++;
}
if(hour==24)
{
hour=0;
}
TH0=(65536-46083)/256;
TL0=(65536-46083)%256;
}
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