time.txt

利用C语言的最基本的语句实现时间的写法

#include <reg51.h>
#include <intrins.h>


void   keytime();
void   display0();
void   displayorign();

void   delays(unsigned char ms);
struct time 
 {
   // unsigned char year;
 
 unsigned char day;
 unsigned char hour;
 unsigned char minute;
 unsigned char second;
// unsigned char week;
// unsigned char temperature;
 }time_orign,time_set;

void   startinit();
void   scankey();//按健 0 1 2 对应不同的时间
void   time_transform(struct time tt );

unsigned char  kk[6]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf};          //P2的按位选择码
unsigned char code table[]={0xC0,0xF9,0xA4,0xB0,0x99, //0~4
                            0x92,0x82,0xF8,0x80,0x90, //5~9    
                             };        
unsigned char t[6];                           //存放转换完的时间
 unsigned char  mms;
 unsigned char  i,j,temp,keycount=0;
 
// 按健0   显示  月 日 |小时 ?
// 按健1   显示  年    |（月 日）阴历
// 按健2   显示  星期  |温度


main()
 {
    startinit();
 while(1)
 {
  scankey();
  delays(10);
 }


 }

 void startinit()
 {
    TMOD=0X10;
 TH1=0X70;     //用TR1定时20毫秒
 TL1=0X00;
 ET1=1;
 EA=1;
 TR1=1;
//      time_orign.year=2006;
// time_orign.month=01;
 time_orign.day=01;
 time_orign.hour=12;
 time_orign.minute=12;
 time_orign.second=12;
//        time_orign.week=0;
// time_orign.temperature=20;
 time_set=time_orign;
   while(1)
   {
     if (temp==0xee)  break;
  if (temp==0xeb)  break;
        displayorign();
   }
 }

void  scankey()
{
   unsigned char temp_h,temp_l;
   P1=0XF0;
   temp_h=P1;
   temp_h&=0xf0;
   if(temp_h!=0xf0)
     {
    P1=0X0F;
    temp_l=P1;
    temp_l&=0x0f;
    if(temp_l!=0x0f)
      {
       temp_h|=temp_l;
    temp=temp_h;
       while(1)
         {
          
                   while(temp!=0xeb)
                   {
       display0();
                   }
      
                   keytime();
      // if(temp==0xde)
                  // timeadd();
       //display1();
       
        //if(temp==0xdd)
        //timereduce();
       }
   }  

}
}

 

void  timer1 () interrupt 3    using 1  //中断服务程序
 { 
     TL1=0X00;
     TH1=0X70;
     TF1=0;
  mms++;
  if (mms==50)
   {
     mms=0;
  time_set.second++;
  if((time_set.second)==60)
    {
       time_set.second=0;
    time_set.minute++;
    if((time_set.minute)==60)
     {
        time_set.minute=0;
     time_set.hour++;
     if((time_set.hour)==13)              //12小时制
        {
         time_set.hour=1;
      }
     }
    }
    }


 }

 void time_transform(struct time tt )
    {
          
  t[0]=tt.hour/10;
  t[1]=tt.hour%10;
  t[2]=tt.minute/10;
  t[3]=tt.minute%10;
   t[4]=tt.second/10;
   t[5]=tt.second%10;
 
 }
 void   display0()
 {   
   
    unsigned char j;
   
           
        time_transform(time_set );
    for(j=0;j<6;j++)
     {
   
     P2=kk[j];
     P0=table[t[j]];
     delays(1);
      P2=0XFF;P0=0XFF;
               
      }
    
 }

void   displayorign()
{
      unsigned char j;
      time_transform(time_orign );
   for(j=0;j<6;j++)
     {
    
     P2=kk[j];
     P0=table[t[j]];
     delays(1);
     P2=0XFF;P0=0XFF;     
     }

}

void  delays ( unsigned char ms)
{
     unsigned char i;
    while(ms--)
     {
   for(i=0;i<200;i++);
  }
 }

void keytime()
{  
   unsigned i,j;
    keycount++;
    if(keycount==1)
       for(i=0;i<3;i++)
       {   
        display0();
        delays(200);
       }
     if(keycount==2)
       for(j=0;j<6;j++)
     {
     if(j==0|j==1)
              delays(200);
           else
     P2=kk[j];
     P0=table[t[j]];
     delays(1);
           P2=0XFF;P0=0XFF;
     }
      if(keycount==3)
       for(j=0;j<6;j++)
     {
     if(j==2|j==3)
              delays(200);
           else
     P2=kk[j];
     P0=table[t[j]];
     delays(1);
           P2=0XFF;P0=0XFF;
     }
     if(keycount==4)
       for(j=0;j<6;j++)
     {
     if(j==4|j==5)
              delays(200);
           else
     P2=kk[j];
     P0=table[t[j]];
     delays(1);
           P2=0XFF;P0=0XFF;
     }
      if(keycount==5)
           keycount=0;
}