1602液晶显示电子钟时间C程序.doc

#include#define uchar unsigned char#define uint unsigned intsbit RS=P20;sbit RW=P21;sbit E=P22;sbit key1=P23;sbit key2=P24;sbit key3=P25;void delay(void);void init(void);void wc51r(uchar i);void wc51ddr(uchar i);void fbusy(void);void LCD_xianshi(void);void delay_zs(uint z);void tiaoshi(void);uchar hour,hour1,min,min1,sec,sec1,aa,bb,num1,num2,num3,flag;uchar year1,year2,year3,year4,month,month1,month2,day,day1,day2;unsigned int year;uchar tab=0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39;void main() init(); while(1) LCD_xianshi(); void init() / key1=1;key2=1;key3=1; num1=12;year=2010;month=11;day=15;/ wc51r(0x01); wc51r(0x38); wc51r(0x0c); wc51r(0x06); TMOD=0x01; /工作方式1 TH0=(65536-5000)/256; /定时器高位装初值 计数溢出一次为50ms TL0=(65536-5000)%256; /定时器低位装初值 EA=1; /CPU开中断 ET0=1; /允许T0中断 / ET1=1; TR0=1; /启动T0工作 / TR1=1;void fbusy() RW=1;RS=0; E=1; while(!P1&0x80); E=0; delay(); void wc51r(uchar j) fbusy(); E=0;RS=0;RW=0; E=1; P1=j; E=0; delay();void wc51ddr(uchar j) fbusy(); E=0;RS=1;RW=0; E=1; P1=j; E=0; delay();void delay() uchar i,j; for(j=0;j10;j+) for(i=0;i0;x-)for(y=110;y0;y-);*/void LCD_xianshi() year1=year/1000;year2=year/100%10;year3=year%100/10;year4=year%10; month1=month/10;month2=month%10;day1=day/10;day2=day%10; hour=num1/10; hour1=num1%10; min=num2/10; min1=num2%10; sec=num3/10; sec1=num3%10; wc51r(0x84); /起始地址为第1行第1列，0x85为第1行第6列;0xc0为第2行第1列 wc51ddr(tabhour); /显示 1 wc51ddr(tabhour1); /显示 2 wc51ddr(0x3a); /显示 ： wc51ddr(tabmin); /显示 0 wc51ddr(tabmin1); /显示 0 wc51ddr(0x3a); /显示 ： wc51ddr(tabsec); wc51ddr(tabsec1); wc51r(0xc3); wc51ddr(tabyear1); wc51ddr(tabyear2); wc51ddr(tabyear3); wc51ddr(tabyear4); wc51ddr(-); wc51ddr(tabmonth1); wc51ddr(tabmonth2); wc51ddr(-); wc51ddr(tabday1); wc51ddr(tabday2);/*void tiaoshi(void) while(key1) TR0=0; if(key2=0) LCD_xianshi; num3+; if(num3=60) num3=0;num2+; else if(key3=0)num2+; / while(key1); / if(key1=0)ET0=1;TR0=1;flag=0;*/*定时器中断程序*/void timer0() interrupt 1 TH0=(65536-50000)/256; /重装计数初值 TL0=(65536-50000)%256; aa+; if(aa=20) /计数20次后恰为20x50ms=1saa=0;num3+; /秒 加1if(num3=60) /秒 计数到60后清零 num3=0; num2+; if(num2=60) num2=0; num1+; if(num1=24) num1=0; day+; if(month%2=0) if(day=31) day=0;month+; if(month=13) month=0;year+; else if(month%2=1) if(day=32) day=0;month+; if(month=13) month=0;year+; /*定时器中断程序*/*void timer