标题: 1602显示时间 [打印本页]

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作者: 5551    时间: 2016-7-23 10:37
标题: 1602显示时间
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar n,num1,num2,num3,s,g,fs,fg,ss,sg;   
uint num;
sbit lcden=P3^4;
sbit lcdrs=P3^5;
uchar code table1[]="I LOVE YOU";
uchar code table[]="0123456789:";
void delay(ms)
{  uint i,j;
for(i=ms;i>0;i--)
   for(j=110;j>0;j--);
}
void write_com(uchar com)
{
lcdrs=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_data(uchar date)
{
lcdrs=1;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init()
{
lcden=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
}
void T0_time()interrupt 1
{
   num++;
   if(num==5000)
{
   num=0;
   num1++;
   if(num1==60)
{
num1=0;
   num2++;//?
   if(num2==60)
{
   num2=0;
   num3++;//?
   if(num3==24)
{   
  num3=0;
}
}
}
}
   s=num1/10;
   g=num1%10;
   fs=num2/10;
   fg=num2%10;
   ss=num3/10;
   sg=num3%10;
}
void main()
{
     init();
TMOD=0x02;
TH0=(256-200);
TL0=(256-200);
EA=1;
ET0=1;
TR0=1;
while(1)
{
write_com(0x80);
{
write_data(table[ss]);     
     write_data(table[sg]);
     write_data(table[10]);
     write_data(table[fs]);   
     write_data(table[fg]);
  write_data(table[10]);
  write_data(table[s]);   
     write_data(table[g]);
}
write_com(0x80+0x40);
for(n=0;n<10;n++)
{
  write_data(table1[n]);

}
}
}

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