51 MCU drives ds1302 program (12864 LCD display)

This is the main interface

This is the main menu interface

This is the sub-interface for setting time [page]

This is the setting date

Setting the Backlight

This is the status icon that appears on the main interface after the key tone and alarm are set.

The alarm clock interface appears and a ring tone appears on the speaker.

Birthday countdown reminder function.

 Download the complete source code: http://www.51hei.com/bbs/dpj-20391-1.html
 Below is the driver for the ds1602 part:
/*------------------------------------
Name: DS1302DriverWritten
by: YuMin_DongTime
: 2013.01.20
------------------------------------*/
#ifndef _DS1302_H_
#define _DS1302_H_

/*------------------------------------
   I/O bit definition
------------------------------------*/
sbit DS_RST=P2^4;
sbit DS_SCL=P2^6;
sbit DS_IO=P2^5;

/*------------------------------------
   Macro definition
---------- --------------------------*/
#define DS_RST_CLR DS_RST=0
#define DS_SCL_CLR DS_SCL=0
#define DS_IO_CLR DS_IO=0
#define DS_IO_SET DS_IO =1
#define DS_SCL_SET DS_SCL=1
#define DS_RST_SET DS_RST=1

#define SECOND_ADDRESS 0x80 //Seconds register address
#define MINUTE_ADDRESS 0x82 //Minutes register address
#define HOUR_ADDRESS 0x84 //Hours register address
#define DATE_ADDRESS 0x86 //Daily register address
#define MONTH_ADDRESS 0x88 //Monthly
register address#define WEEK_ADDRESS 0x8a //Weekly register address #define
YEAR_ADDRESS 0x8c //Yearly register address
#define CONTROL_ADDRESS 0x8e //Control register address

/*------------------------------------
   Global variable definition
------------------------------------*/
UINT8 Year,Month,Date,Hour,Minute,Second,Week; //temporary storage
bit of year, month, day, hour, minute, second and week Set_Hour; //1 means setting the clock , 0 means setting the minute, and the second will stop and clear when setting the time
UINT8 Set_Date; //Set the year, month, and day selection flag
bit Menu0; //Submenu No. 1 time adjustment bit

UINT8 Set_Bell;
UINT8 Bell_Hour,Bell_Minute;

code UINT8 WEEK_TAB[12]={0,3,3,6,1,4,6,2,5,0,3,5}; //week compensation

/*------------------------------------
   Write function
------------------------------------*/
void DS1302_WriteByte(UINT8 address,UINT8 byte)
{
UINT8 i;
address=address&0xfe; //R/W control bit low potential write
DS_RST_SET;
 for(i=0;i<8;i++) //Send address, find register
 {
  if(address&0x01)
  DS_IO_SET;
  else DS_IO_CLR;
  address>>=1;
  DS_SCL_SET;
  DS_SCL_CLR;
 }
 for(i=0;i<8;i++) //Send data to the found register
 {
  if(byte&0x01)
  DS_IO_SET;
  else DS_IO_CLR;
  byte>>=1;
  DS_SCL_SET;
  DS_SCL_CLR;
 }
DS_RST_CLR;
}

/*------------------------------------
   Read function
------------------------------------*/
UINT8 DS1302_ReadByte(UINT8 address)
{
UINT8 i,byte;
address=address|0x01;
DS_RST_SET;
 for(i=0;i<8;i++) //Send address, find register
 {
  if(address&0x01)
  DS_IO_SET;
  else DS_IO_CLR;
  address>>=1;
  DS_SCL_SET;
  DS_SCL_CLR;
 } for(i=0;i<8;i++) // Read data
 from the found register
 {
  byte>>=1;
  if(DS_IO)
  byte|=0x80;
  DS_SCL_SET;
  DS_SCL_CLR;
 }
DS_RST_CLR;
return byte;
}

/*------------------------------------
   Reading time
--------- --------------------------*/
void DS1302_ReadTime()
{
Hour=DS1302_ReadByte(HOUR_ADDRESS);
Minute=DS1302_ReadByte(MINUTE_ADDRESS);
Second= DS1302_ReadByte(SECOND_ADDRESS)&0x7f;
}

/*------------------------------------
   Write time
------------------------------------*/
void DS1302_WriteTime()
{
DS1302_WriteByte(CONTROL_ADDRESS,0X00); //Turn off write protection
DS1302_WriteByte(HOUR_ADDRESS,Hour);
DS1302_WriteByte(MINUTE_ADDRESS,Minute); 
DS1302_WriteByte(SECOND_ADDRESS,Second&0x7f);//Clear seconds
DS1302_WriteByte(CONTROL_ADDRESS,0x80); //Turn on write protection
}

/*------------------------------------
   Display time
------------------------------------*/
void Display_Time()
{
LCD_WriteCommand(0x34); //16x32 clock display, start expanding command mode
LCD_WriteCommand(0x36); //Start drawing mode

LCD_SendImg16x32(0,1,*(User_16x32+Hour/16),0|Set_Hour); 
LCD_SendImg16x32(1,1,*(User_16x32+Hour%16),0|Set_Hour);

LCD_SendImg16x32(2,1,*(User_16x32+10),0);

LCD_SendImg16x32(3,1,*(User_16x32+Minute/16),0|(!Set_Hour&&Menu0));
LCD_SendImg16x32(4,1,*(User_16x32+Minute%16),0|(!Set_Hour&&Menu0));

LCD_SendImg16x32(5,1,*(User_16x32+10),0);

LCD_SendImg16x32(6,1,*(User_16x32+Second/16),0);
LCD_SendImg16x32(7,1,*(User_16x32+Second%16),0);
//LCD_WriteCommand(0x30);
}

/*------------------------------------
   Set the alarm interface filling
------------------------------------*/
void Display_Bell()
{
LCD_WriteCommand(0x34); //16x32 clock display, start expanding the command mode
LCD_WriteCommand(0x36); //Start drawing mode

LCD_SendImg16x32(0,1,*(User_16x32+Bell_Hour/10),Set_Bell==0); 
LCD_SendImg16x32(1,1,*(User_16x32+Bell_Hour%10),Set_Bell==0);

LCD_SendImg16x32(2,1,*(User_16x32+10),0);

LCD_SendImg16x32(3,1,*(User_16x32+Bell_Minute/10),Set_Bell==1);
LCD_SendImg16x32(4,1,*(User_16x32+Bell_Minute%10),Set_Bell==1);

LCD_SendImg16x32(5,1,*(User_16x32+10),0);

LCD_SendImg16x32(6,1,*User_16x32,0);
LCD_SendImg16x32(7,1,*User_16x32,0);
}

/*------------------------------------
   Read date
--------- --------------------------*/
void DS1302_ReadDate()
{
Year=DS1302_ReadByte(YEAR_ADDRESS); 
Month=DS1302_ReadByte(MONTH_ADDRESS);
Date= DS1302_ReadByte(DATE_ADDRESS);  
}

/*------------------------------------
   Write date
------------------------------------*/
void DS1302_WriteDate()
{
DS1302_WriteByte(CONTROL_ADDRESS,0X00); //Turn off write protection
DS1302_WriteByte(DATE_ADDRESS,Date);
DS1302_WriteByte(MONTH_ADDRESS,Month); 
DS1302_WriteByte(YEAR_ADDRESS,Year);//Clear seconds
DS1302_WriteByte(CONTROL_ADDRESS,0x80); //Turn on write protection
}

/*------------------------------------
  Fill in large digits when setting the date
------------------------------------*/
void Display_SetDate()
{
LCD_WriteCommand(0x34);
LCD_WriteCommand(0x36);

LCD_SendImg16x32(0,1,*(User_16x32+Year/16),Set_Date==0); 
LCD_SendImg16x32(1,1,*(User_16x32+Year%16),Set_Date==0);

LCD_SendImg16x32(2,1,*(User_16x32+11),0);

LCD_SendImg16x32(3,1,*(User_16x32+Month/16),Set_Date==1);
LCD_SendImg16x32(4,1,*(User_16x32+Month%16),Set_Date==1);

LCD_SendImg16x32(5,1,*(User_16x32+11),0);

LCD_SendImg16x32(6,1,*(User_16x32+Date/16),Set_Date==2);
LCD_SendImg16x32(7,1,*(User_16x32+Date%16),Set_Date==2);
//LCD_WriteCommand(0x30);
}
/*------------------------------------
   Weekday conversion
---------- --------------------------*/
UINT8 Conver_Week(bit c,UINT8 year,UINT8 month,UINT8 date) 
{
 UINT8 temp1,temp2,week ; 
 temp1=year/16; 
 temp2=year%16; 
 year=temp1*10+temp2; 
 temp1=month/16; 
 temp2=month%16; 
 month=temp1*10+temp2; 
 temp1=date/16; 
 temp2=date %16; 
 date=temp1*10+temp2; 
 
 if (c==0){year+=0x64;} 
 temp1=year/0x4; 
 temp2=year+temp1; 
 temp2=temp2%0x7; 
 temp2=temp2+date+WEEK_TAB[month-1]; 
 if (year%0x4==0&&month<3)temp2-=1; 
 week=temp2 %0x7; 
 return week;
} 
/*------------------------------------
   Display date
--- ---------------------------------*/
void Display_Date()
{
//if(Set_Year&&!Set_Month)
// Year=~Year;
LCD_WriteCommand(0x30);
LCD_WriteCommand(0x06);
      //Display date format 20XX-XX-XX
LCD_WriteCommand(0x80); 
  //Read year information from 1302
LCD_SendString("20");
LCD_WriteData(Year/16 |0x30); //Fill in year information
LCD_WriteData(Year%16|0x30);

LCD_WriteData('-'); //delimiter

 //Read month information from 1302
LCD_WriteData(Month/16|0x30); //Fill LCD with month information
LCD_WriteData(Month%16|0x30);

LCD_WriteData('-'); //delimiter

  //Read date information from 1302
LCD_WriteData(Date/16|0x30); //Fill LCD with date information
LCD_WriteData(Date%16|0x30);
}

/*------------------------------------
   Convert and display the week
------------------------------------*/
void Display_Week()
{
LCD_WriteCommand(0x86);
//Week=DS1302_ReadByte(WEEK_ADDRESS);
Week=Conver_Week(0,Year,Month,Date);
LCD_SendString("周");
 switch(Week)
 {
 case 0: LCD_SendString("日");
   break;
 case 1: LCD_SendString("一");
   break;
 case 2: LCD_SendString("二"); 
   break;
 case 3: LCD_WriteData(0xc8); //The font area code table gets the display code of "三".
   LCD_WriteData(0xfd);
   break;
 case 4: LCD_SendString("四");
   break;
 case 5: LCD_SendString("五");
   break;
 case 6: LCD_SendString("六");
   break;
 default:return ;
 }
}

/*------------------------------------
   Initialization
------------------------------------*/
void DS1302_Init() //Initialize DS1302
{
DS_SCL_CLR;
DS_RST_CLR;
//DS1302_WriteByte(CONTROL_ADDRESS,0X00);
//DS1302_WriteByte(HOUR_ADDRESS,0x16);
//DS1302_WriteByte(CONTROL_ADDRESS,0x80);

}
#endif