c51单片机基于lcd1602的定时器无法运行，图有错？
#include <reg51.h>
#define uchar unsigned char
#define unit unsigned int
#include <24c02.h>
sbit dula=P2^6;
sbit wela=P2^7;
sbit LCDEN=P3^4;
sbit LCDRS=P3^5;
sbit s1=P3^0;
sbit s2=P3^1;
sbit s3=P3^2;
sbit rd=P3^7;
sbit beep=P2^3;
uchar count,s1_num;
uchar week,day,month,year;
char miao,shi,fen;
uchar code table[]=" 2021-5-26 wed";
void delay1(unit z)
{
unit x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void di()
{
beep=0;
delay1(100);
beep=1;
}
void write_com(uchar com)
{
LCDRS=0;
P0=com;
delay1(5);
LCDEN=1;
delay1(5);
LCDEN=0;
}
void write_date(uchar date)
{
LCDRS=1;
P0=date;
delay1(5);
LCDEN=1;
delay1(5);
LCDEN=0;
}
void write_week(char we)
{
write_com(0x80+12);
switch(we)
{
case 1:write_date('M');delay1(5);
write_date('o');delay1(5);
write_date('n');delay1(5);
break;
case 2:write_date('T');delay1(5);
write_date('u');delay1(5);
write_date('e');delay1(5);
break;
case 3:write_date('W');delay1(5);
write_date('e');delay1(5);
write_date('d');delay1(5);
break;
case 4:write_date('T');delay1(5);
write_date('h');delay1(5);
write_date('u');delay1(5);
break;
case 5:write_date('F');delay1(5);
write_date('r');delay1(5);
write_date('i');delay1(5);
break;
case 6:write_date('S');delay1(5);
write_date('a');delay1(5);
write_date('t');delay1(5);
break;
case 7:write_date('S');delay1(5);
write_date('u');delay1(5);
write_date('n');delay1(5);
break;
default:break;
}
}
void write_sfm(uchar add,uchar date)
{
uchar shiwei,gewei;
shiwei=date/10;
gewei=date%10;
write_com(0x80+0x40+add);
write_date(0x30+shiwei);
write_date(0x30+gewei);
}
void write_year_month_day(uchar add,uchar day)
{
uchar shi,ge;
shi=day/10;
ge=day%10;
write_com(0x80+add);
write_date(0x30+shi);
write_date(0x30+ge);
}
void init()
{
uchar num;
rd=0;
beep=1;
dula=0;
wela=0;
LCDEN=0;
fen=0;
miao=0;
shi=0;
count=0;
init1();
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<15;num++)
{
write_date(table[num]);
delay1(5);
}
write_com(0x80+0x40+6);
write_date(0x3a);
delay1(5);
write_com(0x80+0x40+9);
write_date(0x3a);
delay1(5);
miao=read_add(1);
fen=read_add(2);
shi=read_add(3);
week=read_add(4);
day=read_add(5);
month=read_add(6);
year=read_add(7);
write_sfm(10,miao);
write_sfm(7,fen);
write_sfm(4,shi);
write_week(week);
write_year_month_day(9,day);
write_year_month_day(6,month);
write_year_month_day(3,year);
TMOD=0x01;
TH0=(65536-45876)/256;
TL0=(65536-45876)%256;
EA=1;
ET0=1;
TR0=1;
}
void keyscan()
{
if(s1==0)
{
delay1(5);
if(s1==0)
{
s1_num++;
while(!s1);
di();
if(s1_num==1)
{
TR0=0;
write_com(0x80+0x40+11);
write_com(0x0f);
}
if(s1_num==2)
{
write_com(0x80+0x40+8);
}
if(s1_num==3)
{
write_com(0x80+0x40+5);
}
if(s1_num==4)
{
write_com(0x80+14);
}
if(s1_num==5)
{
write_com(0x80+10);
}
if(s1_num==6)
{
write_com(0x80+7);
}
if(s1_num==7)
{
write_com(0x80+4);
}
if(s1_num==8)
{
s1_num=0;
write_com(0x0c);
TR0=1;
}
}
}
if(s1_num!=0)
{
if(s2==0)
{
delay1(5);
if(s2==0)
{
while(!s2);
di();
if(s1_num==1)
{
miao++;
if(miao==60)
miao=0;
write_sfm(10,miao);
write_com(0x80+0x40+11);
write_add(1,miao);
}
if(s1_num==2)
{
fen++;
if(fen==60)
fen=0;
write_sfm(7,fen);
write_com(0x80+0x40+8);
write_add(2,fen);
}
if(s1_num==3)
{
shi++;
if(shi==24)
shi=0;
write_sfm(4,shi);
write_com(0x80+0x40+5);
write_add(3,shi);
}
if(s1_num==4)
{
week++;
if(week==8)
week=1;
write_week(week);
write_com(0x80+14);
write_add(4,week);
}
if(s1_num==5)
{
day++;
if(day==32)
day=1;
write_year_month_day(9,day);
write_com(0x80+10);
write_add(5,day);
}
if(s1_num==6)
{
month++;
if(month==13)
month=1;
write_year_month_day(6,month);
write_com(0x80+7);
write_add(6,month);
}
if(s1_num==7)
{
year++;
if(year==100)
year=00;
write_year_month_day(3,year);
write_com(0x80+4);
write_add(7,year);
}
}
}
if(s3==0)
{
delay1(5);
if(s3==0)
{
while(!s3);
di();
if(s1_num==1)
{
miao--;
if(miao==-1)
miao=59;
write_sfm(10,miao);
write_com(0x80+0x40+11);
write_add(1,miao);
}
if(s1_num==2)
{
fen--;
if(fen==-1)
fen=59;
write_sfm(7,fen);
write_com(0x80+0x40+8);
write_add(2,fen);
}
if(s1_num==3)
{
shi--;
if(shi==-1)
shi=23;
write_sfm(4,shi);
write_com(0x80+0x40+5);
write_add(3,shi);
}
if(s1_num==4)
{
week--;
if(week==0)
week=7;
write_week(week);
write_com(0x80+14);
write_add(4,week);
}
if(s1_num==5)
{
day--;
if(day==0);
day=31;
write_year_month_day(9,day);
write_com(0x80+10);
write_add(5,day);
}
if(s1_num==6)
{
month--;
if(month==0)
month=12;
write_year_month_day(6,month);
write_com(0x80+7);
write_add(6,month);
}
if(s1_num==7)
{
year--;
if(year==-1)
year=99;
write_year_month_day(3,year);
write_com(0x80+4);
write_add(7,year);
}
}
}
}
}
void main()
{
init();
while(1)
{
keyscan();
}
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
if(count==20)
{
count=0;
miao++;
if(miao==60)
{
miao=0;
fen++;
if(fen==60)
{
fen=0;
shi++;
if(shi==24)
{
shi=0;
}
write_sfm(4,shi);
write_add(3,shi);
}
write_sfm(7,fen);
write_add(2,fen);
}
write_sfm(10,miao);
write_add(1,miao);
}
}
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