哪位大侠帮我看看我这仿真为什么会这样，感激不尽了，小时的位置乱码了，不知道哪里出问题了

1楼-- · 2019-07-18 12:37

这是程序部分
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit lcdrs=P2^4;
sbit lcden=P2^6;
sbit key1=P3^0;
sbit key2=P3^1;
sbit key3=P3^2;
sbit dscs=P1^4;
sbit dsas=P1^5;
sbit dsrw=P1^6;
sbit dsds=P1^7;
sbit dsirq=P3^3;
sbit beep=P2^3;
uchar count,key1_num,flag,flag1;
char shi,fen,miao;
uchar read_ds(uchar);
void set_time();
void write_ds(uchar,uchar);
void set_alarm(uchar a_shi,uchar a_fen,uchar a_miao);
uchar code table[]="  2015-10-14 Wed";
uchar code table1[]="    :  :  ";//第十二步
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
      for(y=110;y>0;y--);
}
void write_com(uchar com)
{
lcdrs=0;
lcden=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_data(uchar date)
{
lcdrs=1;
lcden=0;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init()
{
uchar num;
EA=1;//第十七步
EX0=1;
IT0=1;
flag1=0;
lcdrs=1;
lcden=0;
// set_time();//第六步
set_alarm(10,32,55);//第十五步
write_ds(0x0A,0x20);//打开振荡器
write_ds(0x0B,0x26);//启动闹钟，第十三步
read_ds(0x0c);//第十八步
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
for(num=0;num<16;num++)
      {
         write_data(table[num]);
         delay(5);
      }
write_com(0xc0);
for(num=0;num<12;num++)
      {
         write_data(table1[num]);
         delay(5);
      }

}
void write_time(uchar add,uchar date)
{
uchar shi,ge;
shi=date/10;
ge=date%10;
write_com(0xc0+add);
write_data(0x30+shi);
write_data(0x30+ge);

}
void keyscan()
{
if(flag1==1)//二十三
      {
            if(key2==0)//关闭闹钟，二十三步
                  {
                     delay(10);
                     if(key2==0)
                        {
                              while(!key2);
                              flag1=0;
                        }
                  }
            if(key3==0)//关闭闹钟，二十三步
                  {
                     delay(10);
                     if(key3==0)
                        {
                              while(!key3);
                              flag1=0;
                        }
                  }
      }
if(key1==0)
      {
         delay(10);
         if(key1==0)
            {
                  key1_num++;
                  flag=1;//第九步
                  flag1=0;//关闭闹钟，二十二步
                  while(!key1);
                  TR0=0;
                  write_com(0x0f);
                  if(key1_num==1)
                     write_com(0xc0+10);
                  if(key1_num==2)
                     write_com(0xc0+7);
                  if(key1_num==3)
                     write_com(0xc0+4);
                  if(key1_num==4)
                     {
                        key1_num=0;
                        write_com(0x0c);
                        flag=0;//第十步
                        write_ds(0,miao);//按下确认键，重新继续显示时钟，第十一步
                        write_ds(2,fen);
                        write_ds(4,shi);
                     }
            }
      }
if(key1_num!=0)
      {
         if(key2==0)
            {
                  delay(10);
                  if(key2==0)
                     {
                        while(!key2);
                        if(key1_num==1)
                              {
                                 miao++;
                                 if(miao==60)
                                    miao=0;
                                 write_time(10,miao);
                                 write_com(0xc0+10);
                              }
                              if(key1_num==2)
                                 {
                                    fen++;
                                    if(fen==60)
                                          fen=0;
                                    write_time(7,fen);
                                    write_com(0xc0+7);
                                 }
                                 if(key1_num==3)
                                 {
                                    shi++;
                                    if(shi==24)
                                          shi=0;
                                    write_time(4,shi);
                                    write_com(0xc0+4);
                                 }
                     }
            }
         if(key3==0)
            {
                  delay(10);
                  if(key3==0)
                     {
                        while(!key3);
                        if(key1_num==1)
                              {
                                 miao--;
                                 if(miao==-1)
                                    miao=59;
                                 write_time(10,miao);
                                 write_com(0xc0+10);
                              }
                        if(key1_num==2)
                              {
                                 fen--;
                                 if(fen==-1)
                                    fen=59;
                                 write_time(7,fen);
                                 write_com(0xc0+7);
                              }
                        if(key1_num==3)
                              {
                                 shi--;
                                 if(shi==-1)
                                    shi=23;
                                 write_time(4,shi);
                                 write_com(0xc0+4);
                              }
                     }
            }
      }
}
void write_ds(uchar add,uchar date)//向ds12c887写数据,第一步
{

dsas=1;
dsds=1;
dsrw=1;
dscs=0;//选通片选
P0=add;//地址写进来
dsas=0;//地址信息锁存至ds12c887
dsrw=0;
P0=date;//数据写到ds12c887
dsrw=1;
dsas=1;
dscs=1;
}
uchar read_ds(uchar add)//读ds12c887中数据,第二步
{
uchar ds_data;

dsas=1;
dsds=1;
dsrw=1;
dscs=0;
P0=add;//建立地址
dsas=0;//地址联通
dsds=0;
P0=0xff;//读数据前将I/O拉高
ds_data=P0;//读走数据
dsds=1;
dsas=1;
dscs=1;
return ds_data;
}
/*void set_time()//设置时间，第五步
{
write_ds(4,10);
write_ds(2,32);
write_ds(0,30);
}*/
void set_alarm(uchar a_shi,uchar a_fen,uchar a_miao)//设置闹钟，第十四步
{
write_ds(1,a_miao);
write_ds(3,a_fen);
write_ds(5,a_shi);
}
void didi()//第二十一步
{
beep=0;
delay(50);
beep=1;
delay(50);
beep=0;
delay(50);
beep=1;
}
void main()
{

init();
while(1)
{
      keyscan();//第七步
      if(flag1==1)//第二十步
         didi();
      if(flag==0)//第八步
      {
         miao=read_ds(0);//读秒，第三步
         fen=read_ds(2);
         shi=read_ds(4);
         write_time(10,miao);//把秒显示在液晶中,第四步
         write_time(7,fen);
         write_time(4,shi);
      }
}

}
void exter() interrupt 2//第十六步
{
uchar c;
flag1=1;//第十九步
   c=read_ds(0x0c);
}