LCD1602液晶顯示屏顯示時(shí)鐘且能修改時(shí)間

/***************************************
程序功能：
LCD液晶顯示屏顯示時(shí)鐘并且可以修改時(shí)間
***************************************/
#include
#define uint unsigned int
#define uchar unsigned char
sbit K1=P1^0;//設(shè)置三個(gè)獨(dú)立鍵盤
sbit K2=P1^3;
sbit K3=P1^5;
sbit lcdwrite=P2^5;
sbit lcddatecommand=P2^6;
sbit lcde=P2^7;
uchar code firstline[]="2013-06-03";
uchar code secondline[]="00-00-00";
uchar i;
uchar hour,minutes,seconds;
uchar count,num;
uchar cnt;
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
{
for(y=0;y<=112;y++)
{
}
}
}
void write_command(uchar command)
{
lcddatecommand=0;
lcdwrite=0;
P0=command;
delay(1);
lcde=1;
delay(1);
lcde=0;
}
void write_date(uchar date)
{
lcddatecommand=1;
lcdwrite=0;
P0=date;
delay(1);
lcde=1;
delay(1);
lcde=0;
}
void LCDinit()
{
lcde=0;
write_command(0x38);//設(shè)置16*2顯示，5*7點(diǎn)陣，8位數(shù)據(jù)接口
write_command(0x0f);//設(shè)置開顯示，不顯示光標(biāo)
write_command(0x06);// 寫一個(gè)字符后地址指針加1
write_command(0x80);
for(i=0;i<10;i++)
{
write_date(firstline[i]);
delay(1);
}
write_command(0x80+0x40);
for(i=0;i<8;i++)
{
write_date(secondline[i]);
delay(1);
}
}
void Time0init()
{
TMOD=0x01;//開啟定時(shí)器1
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
}
void Clockinit()
{
hour=0;
minutes=0;
seconds=0;
count=0;
num=0;
}