基于51单片机的多功能时钟温度计 -

标题: 基于51单片机的多功能时钟温度计 [打印本页]

作者: ppp123ppp 时间: 2019-11-20 16:52
标题: 基于51单片机的多功能时钟温度计
程序仿真原理图都有：：：

程序：
#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define    LCDIO    P0
sbit rs=P2^0;
sbit rd=P2^1;
sbit lcden=P2^2;
sbit acc0=ACC^0;          //移位时的第0位
sbit acc7=ACC^7;          //移位时用的第7位
sbit ct=P2^3;
sbit speaker=P3^5;
sbit DQ=P2^5;//ds18b20与单片机连接口
int djs11=0,js,dsmin=0,dshour=0;

uchar second,minute,hour,day,month,year,week,count=0;
uchar ReadValue,num,time;
uint tvalue;//温度值
uchar tflag;
uchar code table[]={" 2000-00-00 FRI"};
uchar code table1[]={" 00:00:00    "};
uchar code table2[]= "THUFRISATSUNMONTUEWES";
char szdata[8];
char szdata1[8];
uchar data disdata[5];
sbit DATA=P3^3; //时钟数据接口
sbit RST=P3^4;
sbit SCLK=P3^2;
sbit menu=P2^7;             //菜单
sbit add=P2^6;             //加一
sbit dec=P2^4;
sbit set=P2^3 ;             //减一
sbit djs=P3^6;
void miaobiao();
void yx();
void delayms(int x)
{
char i;
while(x--)
{
  for(i=150;i>0;i--);
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void delay1(uint z)
{
for(;z>0;z--);
}
void write_com(uchar com)
{
rs=0;
rd=0;
lcden=0;
LCDIO=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}

void write_date(uchar date)
{
rs=1;
rd=0;
lcden=0;
LCDIO=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}

void init()
{
uchar num;
lcden=0;

write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
write_com(0x80);
delay(5);
write_com(0x80);
for(num=0;num<15;num++)
{
write_date(table[num]);
delay(5);
}
write_com(0x80+0x40);
for(num=0;num<15;num++)
{
write_date(table1[num]);
delay(5);
}

}

void Write1302(uchar dat)
{
  uchar i;
  SCLK=0;          //拉低SCLK，为脉冲上升沿写入数据做好准备
  delay1(2);    //稍微等待，使硬件做好准备
  for(i=0;i<8;i++)    //连续写8个二进制位数据
{
   DATA=dat&0x01; //取出dat的第0位数据写入1302
  delay(2);    //稍微等待，使硬件做好准备
SCLK=1;          //上升沿写入数据
delay1(2);    //稍微等待，使硬件做好准备
SCLK=0;          //重新拉低SCLK，形成脉冲
dat>>=1;       //将dat的各数据位右移1位，准备写入下一个数据位
}
}

void WriteSet1302(uchar Cmd,uchar dat)
{
RST=0;          //禁止数据传递
SCLK=0;       //确保写数居前SCLK被拉低
RST=1;          //启动数据传输
delay1(2);    //稍微等待，使硬件做好准备
Write1302(Cmd);  //写入命令字
Write1302(dat);  //写数据
SCLK=1;       //将时钟电平置于已知状态
RST=0;          //禁止数据传递
}

uchar Read1302(void)
{
uchar i,dat;
delay(2);    //稍微等待，使硬件做好准备
for(i=0;i<8;i++) //连续读8个二进制位数据
{
dat>>=1;    //将dat的各数据位右移1位，因为先读出的是字节的最低位
if(DATA==1) //如果读出的数据是1
dat|=0x80; //将1取出，写在dat的最高位
SCLK=1;    //将SCLK置于高电平，为下降沿读出
delay1(2);  //稍微等待
SCLK=0;    //拉低SCLK，形成脉冲下降沿
delay1(2);  //稍微等待
}
  return dat;       //将读出的数据返回
  }

uchar  ReadSet1302(uchar Cmd)
{
  uchar dat;
  RST=0;                //拉低RST
  SCLK=0;             //确保写数居前SCLK被拉低
  RST=1;                //启动数据传输
  Write1302(Cmd);    //写入命令字
  dat=Read1302();    //读出数据
  SCLK=1;             //将时钟电平置于已知状态
  RST=0;             //禁止数据传递
  return dat;       //将读出的数据返回
}
void Init_DS1302(void)
{
WriteSet1302(0x8E,0x00);                //根据写状态寄存器命令字，写入不保护指令
WriteSet1302(0x80,((0/10)<<4|(0%10))); //根据写秒寄存器命令字，写入秒的初始值
WriteSet1302(0x82,((12/10)<<4|(12%10))); //根据写分寄存器命令字，写入分的初始值
WriteSet1302(0x84,((11/10)<<4|(11%10))); //根据写小时寄存器命令字，写入小时的初始值
WriteSet1302(0x86,((25/10)<<4|(25%10))); //根据写日寄存器命令字，写入日的初始值
WriteSet1302(0x88,((1/10)<<4|(1%10))); //根据写月寄存器命令字，写入月的初始值
WriteSet1302(0x8c,((13/10)<<4|(13%10))); //nian
WriteSet1302(0x8a,((1/10)<<4|(1%10)));
}

void DisplaySecond(uchar x)
{
uchar i,j;
i=x/10;
j=x%10;
write_com(0xc7);
write_date(0x30+i);
write_date(0x30+j);
}
void DisplayMinute(uchar x)
{
uchar i,j;
i=x/10;
j=x%10;
write_com(0xc4);
write_date(0x30+i);
write_date(0x30+j);
}
void DisplayHour(uchar x)
{
uchar i,j;
i=x/10;
j=x%10;
write_com(0xc1);
write_date(0x30+i);
write_date(0x30+j);
}

void DisplayDay(uchar x)
{
uchar i,j;
i=x/10;
j=x%10;
write_com(0x89);
write_date(0x30+i);
write_date(0x30+j);
}

void DisplayMonth(uchar x)
{
uchar i,j;
i=x/10;
j=x%10;
write_com(0x86);
write_date(0x30+i);
write_date(0x30+j);
}

void DisplayYear(uchar x)
{
uchar i,j;
  i=x/10;
j=x%10;
write_com(0x83);
write_date(0x30+i);
write_date(0x30+j);
}
void DisplayWeek(uchar x)
{ uchar i;
x=x*3;
write_com(0x8c);
for(i=0;i<3;i++)
{
   write_date(table2[x]);
x++;
}
}

void  read_date(void)
{
   ReadValue = ReadSet1302(0x81);
   second=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
   ReadValue = ReadSet1302(0x83);
   minute=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
   ReadValue = ReadSet1302(0x85);
   hour=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
   ReadValue = ReadSet1302(0x87);
   day=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
   ReadValue = ReadSet1302(0x89);
   month=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
   ReadValue = ReadSet1302(0x8d);
   year=((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
   ReadValue=ReadSet1302(0x8b);                   //读星期
   week=ReadValue&0x07;
   if((year==szdata[1])&&(month==szdata[2])&&(day==szdata[3])&&(week==szdata[4])&&(hour==szdata[5])&&(minute==szdata[6])&&(second==szdata[7]))       speaker=0;
   DisplaySecond(second);
   DisplayMinute(minute);
   DisplayHour(hour);
   DisplayDay(day);
   DisplayMonth(month);
   DisplayYear(year);
   DisplayWeek(week);
}

void turn_val(char newval,uchar flag,uchar  newaddr,uchar s1num)
{
               newval=ReadSet1302(newaddr);                   //读取当前时间
               newval=((newval&0x70)>>4)*10+(newval&0x0f); //将bcd码转换成十进制
               if(flag)                //判断是加一还是减一
               {
      newval++;
                  switch(s1num)
                     { case 1: if(newval>99) newval=0;
               DisplayYear(newval);
   break;
      case 2: if(newval>12) newval=1;
        DisplayMonth(newval);
   break;
      case 3: if(newval>31) newval=1;
            DisplayDay(newval);
   break;
      case 4: if(newval>6) newval=0;
            DisplayWeek(newval);
   break;
                     case 5: if(newval>23) newval=0;
            DisplayHour(newval);
   break;
                     case 6: if(newval>59) newval=0;
            DisplayMinute(newval);
   break;
                     case 7: if(newval>59) newval=0;
            DisplaySecond(newval);
   break;
                     default:break;
                     }
   }
else
               {
      newval--;
switch(s1num)
                     { case 1: if(newval<0) newval=99;
               DisplayYear(newval);
   break;
      case 2: if(newval<0) newval=12;
        DisplayMonth(newval);
            break;
      case 3: if(newval<0) newval=31;
        DisplayDay(newval);
            break;
      case 4: if(newval<0) newval=6;
            DisplayWeek(newval);
   break;
                     case 5: if(newval<0) newval=23;
            DisplayHour(newval);
   break;
                     case 6: if(newval<0) newval=59;
            DisplayMinute(newval);
   break;
                     case 7: if(newval<0) newval=59;
            DisplaySecond(newval);
   break;
   default:break;
         }
   }
            WriteSet1302((newaddr-1),((newval/10)<<4)|(newval%10));  //将新数据写入寄存器

}

void turn_val11(char newval,uchar flag,uchar  newaddr,uchar s1num)
{
               newval=szdata[s1num];                   //读取当前时间
               //newval=((newval&0x70)>>4)*10+(newval&0x0f); //将bcd码转换成十进制
               if(flag)                //判断是加一还是减一
               {
      newval++;
                  switch(s1num)
                     { case 1: if(newval>99) newval=0;
               DisplayYear(newval);
   break;
      case 2: if(newval>12) newval=1;
        DisplayMonth(newval);
   break;
      case 3: if(newval>31) newval=1;
            DisplayDay(newval);
   break;
      case 4: if(newval>6) newval=0;
            DisplayWeek(newval);
   break;
                     case 5: if(newval>23) newval=0;
            DisplayHour(newval);
   break;
                     case 6: if(newval>59) newval=0;
            DisplayMinute(newval);
   break;
                     case 7: if(newval>59) newval=0;
            DisplaySecond(newval);
   break;
                     default:break;
                     }
   }
else
               {
      newval--;
switch(s1num)
                     { case 1: if(newval<0) newval=99;
               DisplayYear(newval);
   break;
      case 2: if(newval<0) newval=12;
        DisplayMonth(newval);
            break;
      case 3: if(newval<0) newval=31;
        DisplayDay(newval);
            break;
      case 4: if(newval<0) newval=6;
            DisplayWeek(newval);
   break;
                     case 5: if(newval<0) newval=23;
            DisplayHour(newval);
   break;
                     case 6: if(newval<0) newval=59;
            DisplayMinute(newval);
   break;
                     case 7: if(newval<0) newval=59;
            DisplaySecond(newval);
   break;
   default:break;
         }
   }
               szdata[s1num]= newval;
   szdata1[s1num]=newval;
//WriteSet1302((newaddr-1),((newval/10)<<4)|(newval%10));  //将新数据写入寄存器

}

//键盘扫描程序
//*******************************************
void key_scan(void)
{ uchar miao,s1num=0;

if(menu==0)
   {
   delay(5);
   if(menu==0)
   {
      while(!menu);
   s1num++;
               write_com(0xc9);
   write_date(' ');//显示符号位
   write_com(0xca);
   write_date(' ');//显示百位
   write_com(0xcb);
   write_date('T');//显示十位
   write_com(0xcc);
   write_date('-');//显示个位
   write_com(0xcd);
   write_date('S');//显示小数点
   write_com(0xce);
   write_date('E');//显示小数位
   write_com(0xcf);
   write_date('T');
while(1)
      {

      if(menu==0)
         {
            delay(5);
            if(menu==0)
               {
      while(!menu);
                  s1num++;
            }
         }

         rd=0;
miao=ReadSet1302(0x81);
second=miao;
WriteSet1302(0x80,miao|0x80);
      write_com(0x0f);//光标闪射

if(s1num==1)
{ year=ReadSet1302(0x8d);
write_com(0x80+4); //年光标

      if(add==0)
      {
         delay(3);
         if(add==0)
         { while(!add);
               turn_val(year,1,0x8d,1);

         }
      }
            if(dec==0)
         {
         delay(3);
         if(dec==0)
         { while(!dec);
            turn_val(year,0,0x8d,1);
         }
      }
   }
if(s1num==2)
{
   month=ReadSet1302(0x89);
write_com(0x80+7); //月光标
   if(add==0)
{
   delay(3);
   if(add==0)
   {  while(!add);
      turn_val(month,1,0x89,2);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   {  while(!dec);
      turn_val(month,0,0x89,2);
   }
}
}
if(s1num==3)
{ day=ReadSet1302(0x87);
write_com(0x80+10);//日光标
if(add==0)
   {
   delay(3);
   if(add==0)
   { while(!add);
         turn_val(day,1,0x87,3);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
      turn_val(day,0,0x87,3); //写入日寄存器
   }
}
}
if(s1num==4)
{  week=ReadSet1302(0x8b);
write_com(0x80+14); //星期光标
   if(add==0)
         {
   delay(3);
   if(add==0)
   { while(!add);
      turn_val(week,1,0x8b,4);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
               turn_val(week,0,0x8b,4);
   }
}
}
if(s1num==5)
{ hour=ReadSet1302(0x85);
write_com(0x80+0x40+2); //时光标
   if(add==0)
{
   delay(3);
   if(add==0)
   { while(!add);
               turn_val(hour,1,0x85,5);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
         turn_val(hour,0,0x85,5);
   }
}
}
if(s1num==6)//调时间分
{  minute=ReadSet1302(0x83);
write_com(0x80+0x40+5);
if(add==0)
{
   delay(5);
   if(add==0)
   { while(!add);
         turn_val(minute,1,0x83,6); //写入分寄存器
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
         turn_val(minute,0,0x83,6); //写入分寄存器
   }
}
}
if(s1num==7)//调时间秒
{ second=ReadSet1302(0x81);
write_com(0x80+0x40+8);//秒光标
if(add==0)
{
   delay(3);
   if(add==0)
   { while(!add);
               if(second==0x60)
                  second=0x00;
         turn_val(second,1,0x81,7);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
         turn_val(second,0,0x81,7);
   }
}
}


if(s1num==8)
{ miao=ReadSet1302(0x81);
second=miao;
WriteSet1302(0x80,second&0x7f);
s1num=0;//s1num清零//
write_com(0x0c);//光标不闪烁//
break;
}
}
}
}

  if(ct==0)
   {
   delay(5);
   if(ct==0)
   {
      while(!ct);
   s1num++;
   write_com(0xc9);
   write_date(' ');//显示符号位
   write_com(0xca);
   write_date(' ');//显示百位
   write_com(0xcb);
   write_date('C');//显示十位
   write_com(0xcc);
   write_date('-');//显示个位
   write_com(0xcd);
   write_date('S');//显示小数点
   write_com(0xce);
   write_date('E');//显示小数位
   write_com(0xcf);
   write_date('T');
   DisplaySecond(szdata1[7]);
   DisplayMinute(szdata1[6]);
   DisplayHour(szdata1[5]);
   DisplayDay(szdata1[3]);
   DisplayMonth(szdata1[2]);
   DisplayYear(szdata1[1]);
   DisplayWeek(szdata1[4]);
while(1)
      {

      if(ct==0)
         {
            delay(5);
            if(ct==0)
               {
      while(!ct);
                  s1num++;
            }
         }

         rd=0;
miao=ReadSet1302(0x81);
second=miao;
WriteSet1302(0x80,miao|0x80);
      write_com(0x0f);//光标闪射

if(s1num==1)
{ year=0x00;
write_com(0x80+4); //年光标

      if(add==0)
      {
         delay(3);
         if(add==0)
         { while(!add);
               turn_val11(year,1,0x8d,1);

         }
      }
            if(dec==0)
         {
         delay(3);
         if(dec==0)
         { while(!dec);
            turn_val11(year,0,0x8d,1);
         }
      }
   }
if(s1num==2)
{
   month=0x00;
write_com(0x80+7); //月光标
   if(add==0)
{
   delay(3);
   if(add==0)
   {  while(!add);
      turn_val11(month,1,0x89,2);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   {  while(!dec);
      turn_val11(month,0,0x89,2);
   }
}
}
if(s1num==3)
{ day=0x00;
write_com(0x80+10);//日光标
if(add==0)
   {
   delay(3);
   if(add==0)
   { while(!add);
         turn_val11(day,1,0x87,3);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
      turn_val11(day,0,0x87,3); //写入日寄存器
   }
}
}
if(s1num==4)
{  week=0x00;
write_com(0x80+14); //星期光标
   if(add==0)
         {
   delay(3);
   if(add==0)
   { while(!add);
      turn_val11(week,1,0x8b,4);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
               turn_val11(week,0,0x8b,4);
   }
}
}
if(s1num==5)
{ hour=0x00;
write_com(0x80+0x40+2); //时光标
   if(add==0)
{
   delay(3);
   if(add==0)
   { while(!add);
               turn_val11(hour,1,0x85,5);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
         turn_val11(hour,0,0x85,5);
   }
}
}
if(s1num==6)//调时间分
{  minute=0x00;
write_com(0x80+0x40+5);
if(add==0)
{
   delay(5);
   if(add==0)
   { while(!add);
         turn_val11(minute,1,0x83,6); //写入分寄存器
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
         turn_val11(minute,0,0x83,6); //写入分寄存器
   }
}
}
if(s1num==7)//调时间秒
{ second=0x00;
write_com(0x80+0x40+8);//秒光标
if(add==0)
{
   delay(3);
   if(add==0)
   { while(!add);
               if(second==0x60)
                  second=0x00;
         turn_val11(second,1,0x81,7);
      }
}
if(dec==0)
{
   delay(3);
   if(dec==0)
   { while(!dec);
         turn_val11(second,0,0x81,7);
   }
}
}


if(s1num==8)
{ miao=ReadSet1302(0x81);
second=miao;
WriteSet1302(0x80,second&0x7f);
s1num=0;//s1num清零//
write_com(0x0c);//光标不闪烁//
break;
}
}
}
}
}

void Timer0_init()
{
   js=0;
   TMOD=0x01;       //T0为定时器方式1
   TH0=0x4c;
   TL0=0x00;
   //IT1=1;
   ET0=1;//EX1=1;
   EA=1;
}

void timer0() interrupt 1 using 1
{
      TF0=0;
     //TH0=0x4c;
//TL0=0x00;
TH0=0xb3;
TL0=0x4c;
js++;
if(js==1)
   { js=0;
      djs11++;
//led1=~led1;
if(djs11>59)
   {
      djs11=0;
dsmin=dsmin+1;
if(dsmin>59)
   {
   dsmin=0;
   dshour=dshour+1;
   if(dshour>24) dshour=0;
   }
}
   }
}
void miaobiao()
{ int i,j;

         write_com(0x80);write_date(' ');
write_com(0x81);write_date(' ');
write_com(0x82);write_date(' ');
write_com(0x83);write_date(' ');
write_com(0x84);write_date(' ');
write_com(0x85);write_date(' ');
write_com(0x86);write_date(' ');
write_com(0x87);write_date(' ');
      write_com(0x88);write_date(' ');
write_com(0x89);write_date(' ');
write_com(0x8a);write_date(' ');
write_com(0x8b);write_date(' ');
write_com(0x8c);write_date(' ');
write_com(0x8d);write_date(' ');
write_com(0x8e);write_date(' ');
write_com(0x8f);write_date(' ');
write_com(0xc0);write_date(' ');
write_com(0xc1);write_date(' ');
write_com(0xc2);write_date(' ');
write_com(0xc3);write_date(' ');
write_com(0xc4);write_date(' ');
write_com(0xc5);write_date(' ');
write_com(0xc6);write_date(' ');
write_com(0xc7);write_date(' ');
      write_com(0xc8);write_date(' ');
write_com(0xc9);write_date(' ');
write_com(0xca);write_date(' ');
write_com(0xcb);write_date(' ');
write_com(0xcc);write_date(' ');
write_com(0xcd);write_date(' ');
write_com(0xce);write_date(' ');
write_com(0xcf);write_date(' ');
   while(1)
      { if(add==0)
      {
   delayms(30);
      if(add==0)
   {
      TR0=1;
   }

   }
if(dec==0)
      {
   delayms(30);
      if(dec==0)
   {
      TR0=0;
   }
   }
if(set==0)
      {
   delayms(30);
      if(set==0)
   {
      djs11=0;
TR0=0;
dsmin=0;
dshour=0;
   }
   }
   if(djs==0)
      {
   delayms(30);
      if(djs==0)
   {
yx();
   }
   }
write_com(0xc4);
   i=dshour/10;
         j=dshour%10;
         write_date(0x30+i);
         write_date(0x30+j);

   write_date(':');
   i=dsmin/10;
         j=dsmin%10;
         write_date(0x30+i);
         write_date(0x30+j);
   write_date(':');

        i=djs11/10;
         j=djs11%10;
         write_date(0x30+i);
         write_date(0x30+j);
}
}
void delay_18B20(unsigned int i)//延时1微秒
{
while(i--);
}
void ds1820rst()/*ds1820复位*/
{  unsigned char x=0;
   DQ = 1;       //DQ复位
   delay_18B20(4);  //延时
   DQ = 0;       //DQ拉低
   delay_18B20(100); //精确延时大于480us
   DQ = 1;       //拉高
   delay_18B20(40);
}

uchar ds1820rd()/*读数据*/
  { unsigned char i=0;
   unsigned char dat = 0;
   for (i=8;i>0;i--)
   { DQ = 0; //给脉冲信号
   dat>>=1;
   DQ = 1; //给脉冲信号
   if(DQ)
   dat|=0x80;
   delay_18B20(10);
   }
return(dat);
  }

  void ds1820wr(uchar wdata)/*写数据*/
  {unsigned char i=0;
for (i=8; i>0; i--)
{ DQ = 0;
   DQ = wdata&0x01;
   delay_18B20(10);
   DQ = 1;
   wdata>>=1;
}
}
read_temp()/*读取温度值并转换*/
{uchar a,b;
  ds1820rst();
  ds1820wr(0xcc);//*跳过读序列号*/
  ds1820wr(0x44);//*启动温度转换*/
  ds1820rst();
  ds1820wr(0xcc);//*跳过读序列号*/
  ds1820wr(0xbe);//*读取温度*/
  a=ds1820rd();
  b=ds1820rd();
  tvalue=b;
  tvalue<<=8;
  tvalue=tvalue|a;
if(tvalue<0x0fff)
tflag=0;
else
{tvalue=~tvalue+1;
   tflag=1;
}
  tvalue=tvalue*(0.625);//温度值扩大10倍，精确到1位小数
return(tvalue);
  }
void ds1820disp()//温度值显示
{ uchar flagdat;
   disdata[0]=tvalue/1000+0x30;//百位数
   disdata[1]=tvalue%1000/100+0x30;//十位数
   disdata[2]=tvalue%100/10+0x30;//个位数
   disdata[3]=tvalue%10+0x30;//小数位

   if(tflag==0)
      flagdat=0x20;//正温度不显示符号
   else
   flagdat=0x2d;//负温度显示负号:-

   if(disdata[0]==0x30)
   {disdata[0]=0x20;//如果百位为0，不显示
   if(disdata[1]==0x30)
   {disdata[1]=0x20;//如果百位为0，十位为0也不显示
   }
}

   write_com(0xc9);
   write_date(flagdat);//显示符号位
   write_com(0xca);
   write_date(disdata[0]);//显示百位
   write_com(0xcb);
   write_date(disdata[1]);//显示十位
   write_com(0xcc);
   write_date(disdata[2]);//显示个位
   write_com(0xcd);
   write_date(0x2e);//显示小数点
   write_com(0xce);
   write_date(disdata[3]);//显示小数位
   write_com(0xcf);
   write_date('C');
}

void yx()
{
init();
while(1)
{
   read_date();
   read_temp();//读取温度
   ds1820disp();//显示
   key_scan();
   if(add==0)
      {
   delayms(30);
      if(add==0)
   {
      speaker=1;
   }

   }
if(dec==0)
      {
   delayms(30);
      if(dec==0)
   {
      speaker=1;
   }
   }
   if(djs==0)
   {
   delay(5);
      if(djs==0)
   {
   miaobiao();
   }
}
}

}

void main()
{
init();
Timer0_init();
// Init_DS1302();    //将1302初始化
   speaker=1;
   szdata1[1]=0x00;
   szdata1[2]=0x00;
   szdata1[3]=0x00;
   szdata1[4]=0x00;
   szdata1[5]=0x00;
   szdata1[6]=0x00;
   szdata1[7]=0x00;
yx();
}

J[YK%GI]I)PN0@OW[Z5}]%S.png (29.57 KB, 下载次数: 28)

基于51单片机的多功能时钟温度计.zip

902.42 KB, 下载次数: 30, 下载积分: 黑币 -5

作者: ssssmmyy 时间: 2020-1-8 21:09
你好请问里面有文档吗

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