date.c

一个具体的项目程序

#include "my_head.h"
#include "DS_addr.h"
/*************************************/
#define   SCL    P2_2
#define   SDA    P2_1
#define   RST    P2_0
//-------------------------
#define  CLOCK_FLAG    0
#define  RAM_FLAG      1
/**************************************/
void  I_send(BYTE I_data)
 {
  BYTE  i;
  for(i=0;i<8;i++ )
   	{
     SCL = 0;
     SDA = (bit)(I_data & 0x1);
     I_data>>=1;do_nop(1);
     SCL = 1; do_nop(1);
    }
 }


BYTE I_receive( void )
 {
  BYTE  i,I_data;
  for(I_data=i=0;i<8;i++) 
    {
     SCL = 0;do_nop(1);
     I_data >>= 1;
	 if(SDA==1)I_data|=0X80;
     SCL = 1; do_nop(1);
    }
  return(I_data);
 }


BYTE ReadByte(BYTE addr,bit Clock_Ram)  //Clock_Ram:0-clock,1-ram.
 {
   BYTE   i;
   SCL    = 0;    //must
   addr <<= 1;
   addr  &= ~0xC1;
   addr  |= 0x81;
   if(Clock_Ram)addr |= 0x40;
   RST    = 1;
   I_send(addr);
   i=I_receive();
   RST    = 0;
   return(i);
 }


void   WriteByte(BYTE addr,BYTE Dat,bit Clock_Ram)//Clock_Ram:0-clock,1-ram.
 {
   SCL    = 0;    //must
   addr <<= 1;
   addr  &= ~0xC1;
   addr  |= 0x80;
   if(Clock_Ram)addr |= 0x40;
   RST 	  = 1;
   I_send(addr);
   I_send(Dat);
   RST = 0;
 }


//ClockData[7]，时钟数据，格式：YY MM DD HH MM SS WW
void ReadClock(unsigned char ClockData[])
{
   WriteByte(CONTRAL_ADDR,0X00,CLOCK_FLAG);//WP = 0
   ClockData[0]=ReadByte(YEAR_ADDR,CLOCK_FLAG);
   ClockData[1]=ReadByte(MOM_ADDR,CLOCK_FLAG);
   ClockData[2]=ReadByte(DATE_ADDR,CLOCK_FLAG);
   ClockData[3]=ReadByte(HOUR_ADDR,CLOCK_FLAG);
   ClockData[4]=ReadByte(MIN_ADDR,CLOCK_FLAG);
   ClockData[5]=ReadByte(SEC_ADDR,CLOCK_FLAG);
   ClockData[6]=ReadByte(DATE_ADDR,CLOCK_FLAG);
   WriteByte(CONTRAL_ADDR,0X80,CLOCK_FLAG); //WP = 1
}

void  Do_WriteClock(BYTE  buf[7])
 {
   BYTE  i;
   WriteByte(CONTRAL_ADDR,0X00,CLOCK_FLAG); //WP = 0
   for(i=0;i<7;i++)
   {
     WriteByte(i,buf[i],CLOCK_FLAG);
   }
   WriteByte(CONTRAL_ADDR,0X80,CLOCK_FLAG); //WP = 1
 }


void  Do_ReadClock(BYTE  buf[7])
 {
   BYTE  i;
   WriteByte(CONTRAL_ADDR,0X00,CLOCK_FLAG); //WP = 0
   for(i=0;i<7;i++)
   {
     buf[i]=ReadByte(i,CLOCK_FLAG);
   }
   WriteByte(CONTRAL_ADDR,0X80,CLOCK_FLAG); //WP = 1
 }


void  Init_DateIC(void) //DS1302
 {
  BYTE  i;//,buf[7] = {0x00,0x45,0x23,0x16,0x06,0x03,0x04};
  SCL =  SDA =1;

  RST    = 0;     //P3.0 = 0;
  //I2CON  = 0x44;
  //I2SCLH = 0x10;
  //I2SCLH = 0x10;
  //Do_WriteClock(buf);  //this is a test!
  
  WriteByte(CONTRAL_ADDR,0X00,CLOCK_FLAG); //WP = 0
  i=ReadByte(SEC_ADDR,CLOCK_FLAG);
  if(i>0x7f)
   {
    WriteByte(SEC_ADDR,i&0x7F,CLOCK_FLAG);//startup clock;
   }
  i=ReadByte(HOUR_ADDR,CLOCK_FLAG);
  if(i>0x7f)WriteByte(HOUR_ADDR,i&0X7F,CLOCK_FLAG);//set 24hour/day;
  WriteByte(TRCH_ADDR,0XA5,CLOCK_FLAG);    //充电备置
  WriteByte(CONTRAL_ADDR,0X80,CLOCK_FLAG); //WP = 1
 }


void  DisplayClock(void)
{
   BYTE i,buf[8];
   WriteByte(CONTRAL_ADDR,0X00,CLOCK_FLAG);//WP = 0
   i=ReadByte(HOUR_ADDR,CLOCK_FLAG);
   buf[0] = ~D_DISPLAY[i>>4];
   buf[1] = ~D_DISPLAY[i&0XF];
   i=ReadByte(MIN_ADDR,CLOCK_FLAG);
   buf[3] = ~D_DISPLAY[i>>4];
   buf[4] = ~D_DISPLAY[i&0XF];
   i=ReadByte(SEC_ADDR,CLOCK_FLAG);
   buf[6] = ~D_DISPLAY[i>>4];
   buf[7] = ~D_DISPLAY[i&0XF];
   buf[5]=buf[2]= ~D_DISPLAY[16];
   i=ReadByte(DATE_ADDR,CLOCK_FLAG);
   WriteByte(CONTRAL_ADDR,0X80,CLOCK_FLAG);//WP = 1
   //Send_Str(buf,10);//for test!
   Display_str(buf);//Do_Led(buf[0]);

   if(stOtherTableInfo.save_date != i)
   {
    stOtherTableInfo.save_date=i;
    con_statusinfo.con_daymoney=0L;   //当天消费总金额；
    con_statusinfo.con_dayrecords=0;  //当天消费记录数；
   }
}


void  DisplayDate(void)
{
   BYTE i,buf[8];
   WriteByte(CONTRAL_ADDR,0X00,CLOCK_FLAG);//WP = 0
   i=ReadByte(YEAR_ADDR,CLOCK_FLAG);
   buf[0] = ~D_DISPLAY[i>>4];
   buf[1] = ~D_DISPLAY[i&0XF];
   i=ReadByte(MOM_ADDR,CLOCK_FLAG);
   buf[3] = ~D_DISPLAY[i>>4];
   buf[4] = ~D_DISPLAY[i&0XF];
   i=ReadByte(DATE_ADDR,CLOCK_FLAG);
   buf[6] = ~D_DISPLAY[i>>4];
   buf[7] = ~D_DISPLAY[i&0XF];
   buf[5]=buf[2]= ~D_DISPLAY[16];
   WriteByte(CONTRAL_ADDR,0X80,CLOCK_FLAG);//WP = 1
   //Send_Str(buf,10);//for test!
   Display_str(buf);//Do_Led(buf[0]);
}


/************************************************************
void  Save_My_TestData(BYTE Data)  //this is a test!
  {
   static   WORD  idata  test_addr = MY_TEST_ADDR;//this is a test!
   WriteByte(test_addr,Data,RAM_FLAG);
   if(++test_addr>=ROM_MAXSIZE)test_addr = MY_TEST_ADDR;
  }
/************************************************************/