ds1302.c

SPI FLASH,SL811HST驱动

#include<pic18.h>
//#include"common.h"
//#include "struct.h"
#include "ds1302.h"
#include "lcd.h"


#ifndef _REAL_TIMER_DS1302_2003_7_21_
#define _REAL_TIMER_DS1302_2003_7_21_
extern unsigned char t_count;





#define Set RA0       //模式切换键
#define Up RA1        //加法按钮
#define Down RA2      //减法按钮
#define Out RA3       //立刻跳出调整模式按钮

char hide_sec=0;
char hide_min=0;
char hide_hour=0;
char hide_day=0;
char hide_week=0;
char hide_month=0;
char hide_year=0;
char hide_step=0,hide_c=0;
char lcd_count,temp,up_flag,down_flag;

extern char key_finish;
unsigned char step = 10;      //温度值
unsigned char stepBuffer[3];	
unsigned char c_copy[2];

#define CLK RA5
#define IO  RA4
#define En  RC1



void mdelay(unsigned int delay)
{	
    unsigned int i;
 	for(;delay>0;delay--)
   		{for(i=0;i<62;i++) 
       		{;}
   		}
}
void Ioinit()
{
	ADCON1=0x07;
   // GIE=0;
    TMR0IE=0; //Int2禁用
    CCP2IE=0; //CCP2IE禁用
   	TRISA5=0;
    TRISB=0x00;
    TRISC1=0;
    TRISA0=1;TRISA1=1;TRISA2=1;TRISA3=1;
    up_flag=0;
	down_flag=0;
    
	
}	


void DS1302InputByte(unsigned char b) 	//实时时钟写一字节(内部函数)
{ 
   	unsigned char i;  
   	TRISA4=0;
    for(i=8; i>0; i--)
    {
	    CLK = 0;
       IO = b&1;
       b   = b >> 1;
       CLK = 1;
    }  
}

unsigned char DS1302I_OputByte(unsigned char d) 	//实时时钟写入一字节(内部函数)
{ 
   unsigned char i,j=0x00,k=0x00;
   TRISA4=0;
   En=0;
   CLK=0;
   En=1;
   for(i=8; i>0; i--)
    {
	   CLK=0;          	//相当于汇编中的 RRC
       IO=d&1;  NOP();NOP();
       d= d >> 1; 
		CLK = 1;
    } 
  CLK=0;
  TRISA4=1;
 for(i=0; i<8; i++)
    {   			//相当于汇编中的 RRC  读进一个值    
	j= IO;NOP();NOP();
    CLK =1;
    j=j<<i;
    CLK=0; 
    k|=j;
    } 
 En=0;CLK=1;

 return(k);  Delay10Us(10);

}

void Write1302(unsigned char ucAddr, unsigned char ucDa)	//ucAddr: DS1302地址, ucData: 要写的数据
{
   	En=0;
   	CLK=0;
  	En=1;
    DS1302InputByte(ucAddr);       	// 地址，命令
    CLK=0;
    DS1302InputByte(ucDa);       	// 写1Byte数据
    Delay10Us(10);
 	En = 0;
 	CLK=0;
} 

unsigned char Read1302(unsigned char ucAddr)	//读取DS1302某地址的数据
{
    unsigned char ucData;
 
  ucData =  DS1302I_OputByte(ucAddr|0x01);        // 地址，命令 
    return(ucData);
}



/*void DS1302_SetTime(unsigned char Address, unsigned char Value)        // 设置时间函数
{
	DS1302_SetProtect(0);
	Write1302(Address, ((Value/10)<<4 | (Value%10))); 
}*/
void DS1302_GetTime(SYSTEMTIME *Time)
{
	unsigned char ReadValue;
	ReadValue = Read1302(DS1302_SECOND);
	Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
	ReadValue = Read1302(DS1302_MINUTE);
	Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
	ReadValue = Read1302(DS1302_HOUR);
	Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
	ReadValue = Read1302(DS1302_DAY);
	Time->Day = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);	
	ReadValue = Read1302(DS1302_WEEK);
	Time->Week = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
	ReadValue = Read1302(DS1302_MONTH);
	Time->Month = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
	ReadValue = Read1302(DS1302_YEAR);
	Time->Year = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);	
}

void DateToStr(SYSTEMTIME *Time)
{   if(hide_year<2)
    {
	  Time->DateString[0] = Time->Year/10 + '0';
	  Time->DateString[1] = Time->Year%10 + '0';
	}
	  else
	    {
	      Time->DateString[0] = ' ';
	      Time->DateString[1] = ' ';
		}
	Time->DateString[2] = '-';
	if(hide_month<2)
	{
	  Time->DateString[3] = Time->Month/10 + '0';
	  Time->DateString[4] = Time->Month%10 + '0';
	}
	  else
	  {
	    Time->DateString[3] = ' ';
	    Time->DateString[4] = ' ';
	  }
	Time->DateString[5] = '-';
	if(hide_day<2)
	{
	  Time->DateString[6] = Time->Day/10 + '0';
	  Time->DateString[7] = Time->Day%10 + '0';
	}
	  else
	  {
	    Time->DateString[6] = ' ';
	    Time->DateString[7] = ' ';	    
	  }
	/*if(hide_week<2)
	{
	  Time->DateString[8] = ' ';
	  Time->DateString[9] = Time->Week%10 + '0';
	}
	  else
	  {
	    Time->DateString[8] = ' ';
	    Time->DateString[9] = ' ';
	  }*/

	Time->DateString[8] = '\0';
}

void TimeToStr(SYSTEMTIME *Time)
{   if(hide_hour<2)
    {
	  Time->TimeString[0] = Time->Hour/10 + '0';
	  Time->TimeString[1] = Time->Hour%10 + '0';
	}
	  else
	    {
	      Time->TimeString[0] = ' ';
	      Time->TimeString[1] = ' ';
		}
	Time->TimeString[2] = ':';
    if(hide_min<2)
	{
	  Time->TimeString[3] = Time->Minute/10 + '0';
	  Time->TimeString[4] = Time->Minute%10 + '0';
	}
	  else
	    {
	      Time->TimeString[3] = ' ';
	      Time->TimeString[4] = ' ';
   	    }
	Time->TimeString[5] = ':';
    if(hide_sec<2)
    {
	  Time->TimeString[6] = Time->Second/10 + '0';
	  Time->TimeString[7] = Time->Second%10 + '0';
    }
      else
       {
         Time->TimeString[6] = ' ';
	     Time->TimeString[7] = ' ';
       }
	Time->DateString[8] = '\0';
}


void Initial_DS1302(void)   //时钟芯片初始化
{   
	unsigned char Second=Read1302(DS1302_SECOND);
	if(Second&0x80)	      //判断时钟芯片是否关闭	  
    {
	Write1302(0x8e,0x00); //写入允许
	Write1302(0x8c,0x08); //以下写入初始化时间 日期:07/07/25.星期: 3. 时间: 23:59:55
	Write1302(0x88,0x12);
	Write1302(0x86,0x7);
	Write1302(0x84,0x15);
	Write1302(0x82,0x15);
	Write1302(0x80,0x30);
	Write1302(0x8e,0x80); //禁止写入
	}

}

void step_to_str()  
{
if(hide_step<2)
	{
	  stepBuffer[0] = step/10 + '0';
          stepBuffer[1] = step%10 + '0';
	}
	  else
	  {
	    stepBuffer[0] = ' ';
            stepBuffer[1] = ' ';
	  }
          stepBuffer[2] = '\0';
}

void c_to_str()
{
	if(hide_c<2)
	{
	  c_copy[0] = 'C';
	}
	  else
	  {
	    c_copy[0] = ' ';
	  }
        c_copy[1]='\0';
}


void show_time()  
{
	  DS1302_GetTime(&CurrentTime);  //获取时钟芯片的时间数据
	  TimeToStr(&CurrentTime);       //时间数据转换液晶字符
	  DateToStr(&CurrentTime);       //日期数据转换液晶字符
	  step_to_str();               //步长数据转换成液晶字符  
      c_to_str();
      GotoXY(1,0);
	  Print(CurrentTime.DateString); //显示日期
      GotoXY(1,10);
      Print(&c_copy);
      
      GotoXY(2,0);
	  Print(CurrentTime.TimeString); //显示时间
	  GotoXY(2,9);                   //液晶字符显示位置
	  Print("step:");                 //显示步长
      GotoXY(2,14);
      Print(&stepBuffer);
}
void outkey()                    
{
	  unsigned char Second;
      Out=1;
     /* if(t_count>=3)
       {
         //  Second=Read1302(DS1302_SECOND);
		//   Write1302(0x8e,0x00); //写入允许
		//   Write1302(0x80,Second&0x7f);
		//   Write1302(0x8E,0x80); //禁止写入 
           ClearLcd();
           show_time();
           t_count = 0;
           lcd_count=0;
           key_finish = 1;
           ClearLcd();
           show_time(); 
       }*/
	  
	  if (Out == 0)
	  {     
            if(lcd_count==8)
			{
				//while(usb_finish==0)
	            
	         		usb_flag=1;
                    key_finish = 0;//(可以不要？)
				
			}else
            {key_finish = 1;}
                ClearLcd();
                show_time();
				lcd_count=0;
				hide_sec=0;
			    hide_min=0;
				hide_hour=0;   //注：由郑翔产生key_finish = 1和释放usb_flag = 0;
				hide_day=0;
				hide_week=0;
				hide_month=0;
				hide_year=0;
                hide_step=0;
                hide_c = 0;
                ClearLcd();
                show_time();
				Second=Read1302(DS1302_SECOND);
			    Write1302(0x8e,0x00); //写入允许
				Write1302(0x80,Second&0x7f);
				Write1302(0x8E,0x80); //禁止写入 
                ClearLcd();
                show_time();
                
          //      key_finish = 1;         
				while(Out == 0);
		
	  }
}

void Upkey()//升序按键
{	   
        unsigned char i,j,k;
		Up=1;
		if(Up==0)
		          {
				   mdelay(8);
				       switch(lcd_count)
				          {case 1:
                                  i= Read1302(DS1302_SECOND);  //读取秒数 
                                  j = ((i&0x70)>>4)*10 + (i&0x0F);
								  j = j+1;  //秒数加1
                                  up_flag=1;    //数据调整后更新标志
								  if(j>0x3b)   //超过59秒,清零
                                     j=0;
                                  k=j/10;
                                  temp = (k<<4)|(j%10); 								  
								  break;
				           case 2:
                                  i=Read1302(DS1302_MINUTE);  //读取分数
                                  j = ((i&0x70)>>4)*10 + (i&0x0F);
								  j=j+1;  //分数加1
                                  up_flag=1;
								  if(j>0x3b)          //超过59分,清零
								  j=0;
                                  k=j/10;
                                  temp = (k<<4)|(j%10);
								  break;
				           case 3:
                                  i=Read1302(DS1302_HOUR);  //读取小时数
								  j = ((i&0x70)>>4)*10 + (i&0x0F);
								  j = j+1;  //小时数加1
                                  up_flag=1;    //数据调整后更新标志
								  if(j>0x17)   //超过23时,清零
                                  j=0;
                                  k=j/10;
                                  temp = (k<<4)|(j%10);
								  break;
				         /*  case 4:
                                  temp=Read1302(DS1302_WEEK);  //读取星期数
								  temp=temp+1;  //星期数加1
                                  up_flag=1;
								  if(temp>0x7)  
								  temp=1;
								  break;*/
				           case 4:
                                  i =Read1302(DS1302_DAY);  //读取日数
								  j = ((i&0x70)>>4)*10 + (i&0x0F);
								  j = j+1;  //秒日数加1
                                  up_flag=1;    //数据调整后更新标志
								  if(j>0x1f)   //超过31日,清零
                                  j=1;
                                  k=j/10;
                                  temp = (k<<4)|(j%10);
								  break;
				           case 5:
                                  i = Read1302(DS1302_MONTH);  //读取月数
								  j = ((i&0x70)>>4)*10 + (i&0x0F);
								  j = j+1;                     //月数加1
                                  up_flag=1;                   //数据调整后更新标志
								  if(j>0xc)                    //超过12月,清零
                                  j=1;
                                  k=j/10;
                                  temp = (k<<4)|(j%10);
								  break;
				           case 6:
                                  i = Read1302(DS1302_YEAR);  //读取年数
								  j = ((i&0x70)>>4)*10 + (i&0x0F);
								  j = j+1;                    //年数加1
                                  up_flag=1;                  //数据调整后更新标志
								  if(j>0x4f)j=0;                 //超过记数限度,清零
                                  
                                  k=j/10;
                                  temp = (k<<4)|(j%10);
                            case 7:
                                  step = step+10;
                                  up_flag = 1;
                                  if(step>60)
                                  step = 10;
								  break;
					       default:break;
				          }
					  
				   while( Up == 0 );
				  }
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////
//降序按键
void Downkey()
{	    
        unsigned char i,j,k;
		Down=1;
	    if(Down==0)