retime.c

倒记时显示牌

/***************************************
名称:倒计时牌
作者:董佩钦
修改时间:2007.4.20
功能:普通的倒计时
***************************************/
#include<reg51.h>
#include<absacc.h>
#include<intrins.h>

#include "delay.h"

#define clock_segment XBYTE[0xBFFF] //时钟段码地址
#define clock_sel XBYTE[0x7FFF]     //时钟位码地址
#define year_segment XBYTE[0xEFFF]  //日历段码地址
#define year_sel XBYTE[0xDFFF]      //日历位码地址
#define retime_segment XBYTE[0xFBFF]//倒计时段码地址
#define retime_sel XBYTE[0xF7FF]    //倒计时位码地址

unsigned char time_num=0;//定时一秒次数
unsigned char shi_num=24;//小时位计数
unsigned char miao_ge=0; //秒个位
unsigned char miao_shi=0;//秒十位
unsigned char fen_ge=0;//分个位
unsigned char fen_shi=0;//分十位
unsigned char shi_ge=0;//时个位
unsigned char shi_shi=0;//时十位
unsigned char year_thousand=2;
unsigned char year_hundred=0;
unsigned char year_decade=0;
unsigned char year_unit=7;
unsigned char month_decade=0;
unsigned char month_unit=1;
unsigned char day_decade=0;
unsigned char day_unit=1;
unsigned char retime_unit=0;
unsigned char retime_decade=0;
unsigned char retime_hundred=0;
unsigned char retime_thousand=0;

unsigned char year_thoustore; //保存年千位数据
unsigned char year_hundstore; //保存年百位数据
unsigned char year_decastore; //保存年十位数据
unsigned char year_unitstore; //保存年个位数据
unsigned char month_unitstore;//保存月个位数据
unsigned char month_decastore;//保存月十位数据
unsigned char day_unitstore;  //保存日个位数据
unsigned char day_decastore;  //保存日十位数据
unsigned char year_unitstore2;//保存年各位数据
unsigned char year_decastore2;//年位组合子程序用来保护数据用
unsigned char year_hundstore2;
unsigned char year_thoustore2;
unsigned char retime_ustore;  //保存倒计时各位数据
unsigned char retime_dstore;
unsigned char retime_hstore;
unsigned char retime_tstore;

unsigned char day_numj=31;  //奇数月31天
unsigned char day_numo=30;  //偶数月30天
unsigned char day_numooo=30;
unsigned char day_numoo;
unsigned char month_num=12;
unsigned int year_jointed; //年各位组合在一起,以便进行闰年判断
unsigned int year_help1;
unsigned int year_help2;

unsigned char xiaoshi_ge;//闪烁时存小时个位
unsigned char xiaoshi_shi;//闪烁时存小时十位
unsigned char fenzhong_ge;//闪烁时存分钟个位
unsigned char fenzhong_shi;//闪烁时存分钟十位

unsigned char cort=0;//判断第几次按下确认键

sbit key_sure=P1^0;//调时或确认键
sbit key_inc=P1^1;//调时加键
sbit key_dec=P1^2;//调时减键

bit first_sure=0; //第一次按下确认键
bit second_sure=0;//第二次按下确认键
bit third_sure=0; //第三次按下确认键
bit fourth_sure=0;//第四次按下确认键
bit fifth_sure=0; //第五次按下确认键
bit sixth_sure=0; //第六次按下确认键
bit seventh_sure=0;//第七次按下确认键


unsigned code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};//段码表

/************函数声明*************/
void shannum_jian(void);
void inc_key(void);
void dec_key(void);
void dis_dingshi(void);
void hour_shanshuo(void);
void min_shanshuo(void);
void kbscan(void);
void display(void);
void year_joint(void);
unsigned char judgement_leap(void);
void retime_flash(void);

/********************************

显示子程序

*********************************/
void display(void)
{
    clock_sel=0xdf; 
    clock_segment=table[miao_ge];        //送秒个位段位码
    delay(3);

    clock_sel=0xef;
    clock_segment=table[miao_shi];       //送秒十位段位码
    delay(3);

    clock_sel=0xf7; 
    clock_segment=table[fen_ge]|0x80;    //送分个位段位码
    delay(3);

    clock_sel=0xfb;
    clock_segment=table[fen_shi];        //送分十位段位码
    delay(3);

    clock_sel=0xfd;
    clock_segment=table[shi_ge]|0x80;    //送时个位段位码
    delay(3);

    clock_sel=0xfe;
    clock_segment=table[shi_shi];        //送时十位段位码
    delay(3);

    year_sel=0x7f;
    year_segment=table[day_unit];        //送日个位段位码
    delay(3);

    year_sel=0xbf;
    year_segment=table[day_decade];      //送日十位段位码
    delay(3);

    year_sel=0xdf;
    year_segment=table[month_unit]|0x80; //送月个位段位码
    delay(3);

    year_sel=0xef;
    year_segment=table[month_decade];    //送月十位段位码
    delay(3);

    year_sel=0xf7;
    year_segment=table[year_unit]|0x80;  //送年个位段位码
    delay(3);

    year_sel=0xfb;
    year_segment=table[year_decade];     //送年十位段位码
    delay(3);

    year_sel=0xfd;
    year_segment=table[year_hundred];    //送年百位段位码
    delay(3);

    year_sel=0xfe;
    year_segment=table[year_thousand];   //送年千位段位码
    delay(3);

    retime_sel=0xf7;
    retime_segment=table[retime_unit];   //送倒计时个位段位码
    delay(3);

    retime_sel=0xfb;
    retime_segment=table[retime_decade]; //送倒计时十位段位码
    delay(3);

    retime_sel=0xfd;
    retime_segment=table[retime_hundred];//送倒计时百位段位码
    delay(3);

    retime_sel=0xfe;
    retime_segment=table[retime_thousand];//送倒计时千位段位码
    delay(3);

}
/**********************************

判断闰年子程序

***********************************/
unsigned char judgement_leap(void)
{
    year_joint();       //调用年各位组合子程序
    if((year_jointed%4==0&&year_jointed%100!=0)||(year_jointed%100==0&&year_jointed%400==0))return(29); //是闰年二月29天
    else return(28);    //是平年二月28天	
}

/**********************************

按键扫描子程序

***********************************/
void kbscan(void)
{
    unsigned char sccode;
    P1=0xff;
    if((P1&0xff)!=0xff)
    {
        //delay(5); 
        display();
        display();
        display();
            		
        if((P1&0xff)!=0xff)
    	{
             sccode=P1;
             //while((P1&0xff)!=0xff)     //按键后消陡
        	 //{
        	 //	;
        	// }
             switch(sccode)
        	 {
                case 0xfe:shannum_jian();break;
                case 0xfd:inc_key();	 break;
                case 0xfb:dec_key();	 break;
                default:			 	 break;
        	 }
    	}
    }
}
/********************************

确认键按键次数子程序

********************************/
void shannum_jian(void)
{   
    cort++;
    if(cort==1)          //第一次按下确认键
    {
        first_sure=1;
        second_sure=0;
        third_sure=0;
        fourth_sure=0;
        fifth_sure=0;
        sixth_sure=0;
        seventh_sure=0;
    	
    }
    else if(cort==2)    //第二次按下确认键
    {	
        first_sure=0;
        second_sure=1;
        third_sure=0;
        fourth_sure=0;
        fifth_sure=0;
        sixth_sure=0;
        seventh_sure=0;
    	
    }
    else if(cort==3)    //第三次按下确认键
    {
        first_sure=0;
        second_sure=0;
        third_sure=1;
        fourth_sure=0;
        fifth_sure=0;
        sixth_sure=0;
        seventh_sure=0;
    	
    }
    else if(cort==4)   //第四次按下确认键
    {
        first_sure=0;
        second_sure=0;
        third_sure=0;
        fourth_sure=1;
        fifth_sure=0;
        sixth_sure=0;
        seventh_sure=0;
    		
    }
    else if(cort==5)   //第五次按下确认键
    {
        first_sure=0;
        second_sure=0;
        third_sure=0;
        fourth_sure=0;
        fifth_sure=1;
        sixth_sure=0;
        seventh_sure=0;
    		
    }
    else if(cort==6)   //第六次按下确认键
    {
     	
        first_sure=0;
        second_sure=0;
        third_sure=0;
        fourth_sure=0;
        fifth_sure=0;
        sixth_sure=1;
        seventh_sure=0;
    		
    }
    else if(cort==7)  //第七次按下确认键
    {
        cort=0;
        first_sure=0;
        second_sure=0;
        third_sure=0;
        fourth_sure=0;
        fifth_sure=0;
        sixth_sure=0;
        seventh_sure=1;
    }		

}

/*******************************

加一键子程序

*******************************/
void inc_key(void)
{
    if(first_sure)                          //第一次按下确认键,小时位加
    {
        if((--shi_num)!=0)
    	{	
            if((++xiaoshi_ge)==10)
    		{
                xiaoshi_ge=0;
                if((++xiaoshi_shi)==3)
        		{
        			;
        		}
    		}
    	 }
        else if(shi_num==0)
    	{
          shi_num=24;
          xiaoshi_shi=0;
          xiaoshi_ge=0;
    	}
    }
    else if(second_sure)                   //第二次按下确认键,分钟位加
    {
        if((++fenzhong_ge)==10)
    	{
            fenzhong_ge=0;
            if((++fenzhong_shi)==6)
    		{
                fenzhong_shi=0;
    		}
    	}
    }
    else if(third_sure)                  //第三次按下确认键,年位加
    {
         if((++year_unitstore)==10)
    	 {
            year_unitstore=0;
            if((++year_decastore)==10)
    		{
                year_decastore=0;
                if((++year_hundstore)==10)
        		{
                    year_hundstore=0;
                    if(++year_thoustore==10)year_thoustore=0;
        		}
    		}
    	 }
    }
    else if(fourth_sure)                //第四次按下确认键,月位加
    {
        if((--month_num)!=0)
    	{
              if((++month_unitstore)==10)
        	  {
                   month_unitstore=0;
                   ++month_decastore;
        	  }
    	}
        else if(month_num==0)
    	{
           month_num=12;
           month_unitstore=1;
           month_decastore=0;
    	}
    }
    else if(fifth_sure)                //第五次按下确认键,日位加
    {
         if((month_unitstore|0xfe)==0xff)       //是奇数月,日为31天
         {	
            if((--day_numj)!=0)
    		{
                if((++day_unitstore)==10)