复件 ds12887.c

有关日历的...万年历.是用时钟芯片..DS12887

 

///////////////////////////////////////// 
// 接口 RTC.h 
//////////////////////////////////////// 
#include <reg52.h> 
//*******DS12887 ******* 
 
#define YEAR_IN_RTC            0 
#define MONTH_IN_RTC           1 
#define DAY_IN_RTC             2 
#define HOUR_IN_RTC            3 
#define MINUTE_IN_RTC          4 
#define SECOND_IN_RTC          5 
#define SECOND_ALARM_IN_RTC 6 
#define MINUTE_ALARM_IN_RTC 7 
#define HOUR_ALARM_IN_RTC    8 
#define RTC_SECONDS           XBYTE[0xfe00] 
#define RTC_SECONDS_ALARM    XBYTE[0xfe01] 
#define RTC_MINUTES           XBYTE[0xfe02] 
#define RTC_MINUTES_ALARM   XBYTE[0xfe03] 
#define RTC_HOURS             XBYTE[0xfe04] 
#define RTC_HOURS_ALARM     XBYTE[0xfe05] 
#define RTC_DAYS              XBYTE[0xfe07]  
#define RTC_MONTHS            XBYTE[0xfe08]                  
#define RTC_YEARS             XBYTE[0xfe09] 
#define DSA                   XBYTE[0xfe0a]              //DS12887 register A 
#define DSB                   XBYTE[0xfe0b] 
#define DSC                   XBYTE[0xfe0c] 
#define DSD                   XBYTE[0xfe0d] 
 
sbit RTC_CS=P2^0; 
 
bit Init_RTC(void); 
bit Second_Interrupt(void); 
unsigned char Read_RTC(unsigned char); 
void Write_RTC(unsigned char,unsigned char); 
 
 
///////////////////////////////////////// 
// 实现部分 RTC.C 
//////////////////////////////////////// 
#include <reg52.h> 
#include<absacc.h> 
#include<RTC.h> 
 
unsigned char Read_RTC(unsigned char option) 
{ 
   
  switch(option) 
  { 
    case YEAR_IN_RTC:return(RTC_YEARS);break; 
    case MONTH_IN_RTC:return(RTC_MONTHS);break; 
    case DAY_IN_RTC:return(RTC_DAYS);break; 
    case HOUR_IN_RTC:return(RTC_HOURS);break; 
    case MINUTE_IN_RTC:return(RTC_MINUTES);break; 
    case SECOND_IN_RTC:return(RTC_SECONDS);break; 
  } 
} 
 
void Write_RTC(unsigned char option,unsigned char j) 
{ 
  switch(option) 
  { 
    case YEAR_IN_RTC:RTC_YEARS=j;break; 
    case MONTH_IN_RTC:RTC_MONTHS=j;break; 
    case DAY_IN_RTC:RTC_DAYS=j;break; 
    case HOUR_IN_RTC:RTC_HOURS=j;break; 
    case MINUTE_IN_RTC:RTC_MINUTES=j;break; 
    case SECOND_IN_RTC:RTC_SECONDS=j;break; 
    case SECOND_ALARM_IN_RTC:RTC_SECONDS_ALARM=j;break; 
    case MINUTE_ALARM_IN_RTC:RTC_MINUTES_ALARM=j;break; 
    case HOUR_ALARM_IN_RTC:RTC_HOURS_ALARM=j;break; 
 
  } 
} 
 
 
bit Second_Interrupt(void) 
{ 
    if( (DSC&0x20)==0x20 )return(1); 
    return(0); 
} 
 
 
/*  initialize DS12887  */ 
bit Init_RTC(void) 
{ 
    DSA=0x20; 
    DSB=0x72;                                  //SET=0,*IE=disenable,SQW=disenable ,BCD,NO DSE 
    DSC=0x00; 
    ACC=DSD; 
 
    //every second interrupt 
    Write_RTC(HOUR_ALARM_IN_RTC,0xff); 
    Write_RTC(MINUTE_ALARM_IN_RTC,0xff); 
    Write_RTC(SECOND_ALARM_IN_RTC,0xff); 
    //if(ACC&0x80)return(0); //when low bat return 0 
    //return(1); 
     /* DSB=0x82;                                   //set SET=1 
  RTC_HOURS=0x23; 
  RTC_MINUTES=0x12; 
  RTC_SECONDS=0x30; 
  DSB=0x02; 
   */ 
  return(1);     
} 
#include<reg52.h>
#include<intrins.h>

#define time_1 10
sbit DATA2=P2^6;
sbit CLKPIN=P2^5;
sbit JUNJIE=P2^7;
unsigned char data l_data[5];      //用户自定义LCD缓冲区
unsigned char dis[4];
unsigned char  d[4]={0,0,0,0};

void delay(unsigned int t)         // 延时子程序
{  unsigned int i,j;
   for(i=0;i<t;i++)
      for(j=0;j<114;j++)
         ;
}
//主函数之前是与显示相关的程序，等待调用
unsigned char led_seg(unsigned char i)
{
   unsigned char tem;
   switch(i)
   {
     case 0: tem=0x88;break;
     case 1: tem=0xbb;break;
     case 2: tem=0xc1;break;
     case 3: tem=0x91;break;
     case 4: tem=0xb2;break;
     case 5: tem=0x94;break;
     case 6: tem=0x84;break;
     case 7: tem=0xb9;break;
     case 8: tem=0x80;break;
     case 9: tem=0x90;break;
     default:break;
   }
   return tem;
}
 
void lcdwbit2(bit n2)      //低位
{  DATA2 = n2;
   CLKPIN = 1;
   CLKPIN = 0;
   CLKPIN = 1;
}


void lcdwd2(unsigned char data2)     //低位
{  unsigned char i;
   //data2=~data2;                  //数据取反
   for(i=0;i<8;i++)
   {  if((data2&0x01)==0x01)
         lcdwbit2(1);
      else 
         lcdwbit2(0);
      data2>>=1;
   }
}

  void l_setd()
{
  unsigned char i;
  l_data[1]=0xff;
  for(i=2;i<6;i++)
  { l_data[i]=led_seg(dis[i-2]); }
  l_data[4]=l_data[4]&0x7f;
}

 
void lcdwdd()            //低位
{  unsigned char i;
   for(i=0;i<5;i++) 
      lcdwd2(l_data[i+1]);
}
 void xianshi(unsigned  long  dd)    
  {  
     int j; 
	 for(j=0;j<8;j++)
     { d[j]=dd%10;  dd=dd/10;  }
     //开始显示
     while(1)
     {
     dis[0]=d[3];
     dis[1]=d[2];
     dis[2]=d[1];
     dis[3]=d[0];
     l_setd(); lcdwdd(); delay(time_1);  //低4位显示
     
     }
  }
void main()
{
JUNJIE=0;
xianshi(4321);
}