原理图

程序代码

//DS1302与12864设计的可调式电子日历与时钟//

#include

#include

#include

#define uchar unsigned char

#define uint unsigned int

extern void LCD_Initialize();

extern void Display_A_Char_8x16(uchar P,uchar L,uchar

*M)reentrant;

extern void Display_A_WORD(uchar P,uchar L,uchar *M)reentrant;

//在调整日期时间时，用该位决定是否反白显示//

extern bit Reverse_Display;

sbit SDA =P1^0; //DS1302数据线

sbit CLK =P1^1; //DS1302时钟线

sbit RST =P1^2; //DS1302复位线

sbit K1 =P3^4; //选择

sbit K2 =P3^5; //加

sbit K3 =P3^6; //减

sbit K4 =P3^7; //确定

uchar tCount =0;

//一年中每月的天数，2月的天数由年份决定

uchar MonthsDays[]={0,31,0,31,30,31,30,31,31,30,31,30,31};

//所读取的日期时间

uchar DateTime[7];

//当前调整的时间对象：秒，分，时，日，月，年(0，1，2，3，4，6)

//5对应星期，星期调节由年月日调整自动完成

char Adjust_Index=-1;

//水平与垂直偏移

uchar H_Offset=10,V_Page_Offset=0;

//年月日，星期，时分秒汉字点阵(16*16)------

uchar code DATE_TIME_WORDS[]=

{/

/

0x40,0x20,0x10,0x0C,0xE3,0x22,0x22,0x22,0xFE,0x22,0x22,0x22,0x22,0x02,0x00,0x00,

0x04,0x04,0x04,0x04,0x07,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00,

/

/

0x00,0x00,0x00,0x00,0x00,0xFF,0x11,0x11,0x11,0x11,0x11,0xFF,0x00,0x00,0x00,0x00,

0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x01,0x01,0x21,0x41,0x3F,0x00,0x00,0x00,0x00,

/

/

0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00,

/

/

0x00,0x00,0x00,0xBE,0x2A,0x2A,0x2A,0xEA,0x2A,0x2A,0x2A,0x2A,0x3E,0x00,0x00,0x00,

0x00,0x48,0x46,0x41,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x49,0x49,0x41,0x40,0x00,

/

/

0x00,0x04,0xFF,0x54,0x54,0x54,0xFF,0x04,0x00,0xFE,0x22,0x22,0x22,0xFE,0x00,0x00,

0x42,0x22,0x1B,0x02,0x02,0x0A,0x33,0x62,0x18,0x07,0x02,0x22,0x42,0x3F,0x00,0x00,

/

/

0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00,

0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00,0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,

/

/

0x80,0x40,0x20,0x98,0x87,0x82,0x80,0x80,0x83,0x84,0x98,0x30,0x60,0xC0,0x40,0x00,

0x00,0x80,0x40,0x20,0x10,0x0F,0x00,0x00,0x20,0x40,0x3F,0x00,0x00,0x00,0x00,0x00,

/

/

0x12,0x12,0xD2,0xFE,0x91,0x11,0xC0,0x38,0x10,0x00,0xFF,0x00,0x08,0x10,0x60,0x00,

0x04,0x03,0x00,0xFF,0x00,0x83,0x80,0x40,0x40,0x20,0x23,0x10,0x08,0x04,0x03,0x00,

/

/

0x00,0x02,0x02,0xF2,0x12,0x12,0x12,0x12,0xF2,0x02,0x02,0x02,0xFE,0x02,0x02,0x00,

0x00,0x00,0x00,0x07,0x02,0x02,0x02,0x02,0x07,0x10,0x20,0x40,0x3F,0x00,0x00,0x00,

/

/

0x20,0x21,0xEE,0x04,0x00,0x00,0xFF,0x29,0xA9,0xBF,0xA9,0xA9,0x01,0xFF,0x00,0x00,

0x00,0x00,0x1F,0x88,0x44,0x30,0x0F,0x00,0x0F,0x04,0x04,0x4F,0x80,0x7F,0x00,0x00,

/

/

0x00,0x02,0x02,0x02,0x02,0x82,0x7E,0x22,0x22,0x22,0x22,0xF2,0x22,0x02,0x02,0x00,

0x00,0x40,0x20,0x10,0x0C,0x03,0x00,0x00,0x20,0x60,0x20,0x1F,0x00,0x00,0x00,0x00,

/

/

0x00,0x00,0xFE,0x02,0x22,0x22,0x22,0x22,0xFA,0x22,0x22,0x22,0xE2,0x02,0x02,0x00,

0x40,0x30,0x0F,0x00,0x40,0x20,0x18,0x06,0x01,0x00,0x20,0x60,0x3F,0x00,0x00,0x00,

/

/

0x00,0x02,0x82,0x82,0x82,0x82,0xFE,0x82,0x82,0x82,0xC2,0x82,0x02,0x00,0x00,0x00,

0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x30,0x20,0x00,

/

/

0x42,0x42,0xFE,0x42,0x42,0xE0,0x00,0xFF,0x00,0x42,0x42,0xFE,0x42,0x42,0x42,0x00,

0x10,0x10,0x0F,0x88,0x49,0x20,0x18,0x07,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x00,

/

/

0x00,0xFE,0x22,0x52,0x8E,0x00,0xC4,0xB4,0x8C,0xE7,0x84,0x84,0x84,0x84,0x04,0x00,

0x00,0xFF,0x02,0x04,0x23,0x10,0x0C,0x40,0x80,0x7F,0x00,0x02,0x04,0x18,0x30,0x00,

/

/

0x00,0x10,0x10,0x92,0x72,0xA2,0xA2,0xF2,0xAA,0xAA,0x66,0xA2,0x12,0x18,0x00,0x00,

0x10,0x08,0x06,0x01,0x04,0x44,0x84,0x7F,0x04,0x04,0x04,0x01,0x06,0x18,0x08,0x00,

};

//星期几的汉字点阵(16*16)

uchar code WEEKDAY[]=

{/

/

0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,

/

//

0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,

/

//

0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,

/

/

0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,

/

//

0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,

/

//

0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,

/

/

0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,

};

//半角数字点阵(8*16)

uchar code DIGITS[]={//

//

0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,

/

//

0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,

/

//

0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,

/

/

0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,

/

//

0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,

/

//

0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,

/

/

0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,

/

/

0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,

/

/

0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,

/

/

0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,

};

//向DS1302写、读一字节--------

//向DS1302写入一字节

void Write_A_Byte_TO_DS1302(uchar x)

{uchar i;

for (i=0;i<8;i++)

{SDA=x&1;CLK=1;CLK=0;x>>=1;}

}

//从DS1302读取一字节

uchar Get_A_Byte_FROM_DS1302()

{uchar i,b,t;

for(i=0;i<8;i++)

{b>>=1;t=SDA;b|=t<<7;CLK=1;CLK=0;}

//BCD码转换

return b/16*10+b;}

//DS1302指定位置读数据

uchar Read_Data(uchar addr)

{uchar dat;

RST=0;CLK=0;RST=1;

Write_A_Byte_TO_DS1302(addr);

dat=Get_A_Byte_FROM_DS1302();

CLK=1;RST=0;

return dat;}

//向DS1302某地址写入数据

void Write_DS1302(uchar addr,uchar dat)

{CLK=0;RST=1;

Write_A_Byte_TO_DS1302(addr);

Write_A_Byte_TO_DS1302(dat);

CLK=0;RST=0;}

//设置时间

void SET_DS1302()

{uchar i;

Write_DS1302(0x8E,0x00);

//秒分时日月年依次写入

for(i=0;i<7;i++)

{//秒的起始地址10000000(0x80),

//后续依次是分，时，日，月，周，年，写入地址每次递增2

Write_DS1302(0x80+2*i,(DateTime[i]/10<<4)|(DateTime[i]));

}

Write_DS1302(0x8E,0x80);

}

//读取当前日期时间

void GetTime()

{uchar i;

for(i=0;i<7;i++)

{DateTime[i]=Read_Data(0x81+2*i);

}

}

//判断是否为闰年

uchar isLeapYear(uint y)

{return(y%4==0&&y0!=0)||(y@0==0);}

//----------------------------------------

void RefreshWeekDay()

{uint i,d,w=5;

for(i=2000;i<2000+DateTime[6];i++)

{d=isLeapYear(i)?366:365;

w=(w+d)%7;}

d=0;

for (i=1;i

d+=MonthsDays[i];

d+=DateTime[3];

DateTime[5]=(w+d)%7+1;}

//年月日时分秒++--

void DateTime_Adjust(char x)

{switch(Adjust_Index)

{case 6://年00-99

if(x==1&&DateTime[6]<99)

DateTime[6]++;

if(x==-1&&DateTime[6]>0)DateTime[6]--;

//获取2月天数

MonthsDays[2]=isLeapYear(2000+DateTime[6])?29:28;

//如果年份变化后当前月份的天数大于上限则设为上限

if(DateTime[3]>MonthsDays[DateTime[4]])

DateTime[3]=MonthsDays[DateTime[4]];

RefreshWeekDay();//刷新星期

break;

case 4://月01-12

if(x==1&&DateTime[4]<12)DateTime[4]++;

if(x==-1&&DateTime[4]>1)DateTime[4]--;

//获取2月天数

MonthsDays[2]=isLeapYear(2000+DateTime[6])?29:28;

//如果年份变化后当前月份的天数大于上限则设为上限

if(DateTime[3]>MonthsDays[DateTime[4]])

DateTime[3]=MonthsDays[DateTime[4]];

RefreshWeekDay();//刷新星期

break;

case 3://日00-28/29/30/31;调节前首先根据年份得出该年中2月的天数

MonthsDays[2]=isLeapYear(2000+DateTime[6])?29:28;

//根据当前月份决定调节日期的上限

if(x==1&&DateTime[3]

if(x==-1&&DateTime[3]>0)DateTime[3]--;

RefreshWeekDay();//刷新星期

break;

case 2://时

if(x==1&&DateTime[2]<23)DateTime[2]++;

if(x==-1&&DateTime[2]>0)DateTime[2]--;

break;

case 1://分

if(x==1&&DateTime[1]<59)DateTime[1]++;

if(x==-1&&DateTime[1]>0)DateTime[1]--;

break;

case 0://秒

if(x==1&&DateTime[0]

<59) DateTime[0]++;

if(x==-1&&DateTime[0]

>0) DateTime[0]--;

break;}}

//定时器0每秒刷新LCD显示

void T0_INT() interrupt 1

{TH0=-50000/256;

TL0=-50000%6;

if(++tCount!=2)return;

tCount=0;

//年(后两位)

Reverse_Display=Adjust_Index==6;

Display_A_Char_8x16(V_Page_Offset,16+H_Offset,DIGITS+DateTime[6]/10*16);

Display_A_Char_8x16(V_Page_Offset,24+H_Offset,DIGITS+DateTime[6]*16);

//月

Reverse_Display=Adjust_Index==4;

Display_A_Char_8x16(V_Page_Offset,48+H_Offset,DIGITS+DateTime[4]/10*16);

Display_A_Char_8x16(V_Page_Offset,56+H_Offset,DIGITS+DateTime[4]*16);

//日

Reverse_Display=Adjust_Index==3;

Display_A_Char_8x16(V_Page_Offset,80+H_Offset,DIGITS+DateTime[3]/10*16);

Display_A_Char_8x16(V_Page_Offset,88+H_Offset,DIGITS+DateTime[3]*16);

//星期

Reverse_Display=Adjust_Index==5;

Display_A_Char_8x16(V_Page_Offset+3,104+H_Offset,

WEEKDAY+DateTime[5]*16-16);

//时

Reverse_Display=Adjust_Index==2;

Display_A_Char_8x16(V_Page_Offset+6,16+H_Offset,DIGITS+DateTime[2]/10*16);

Display_A_Char_8x16(V_Page_Offset+6,24+H_Offset,DIGITS+DateTime[2]*16);

//分

Reverse_Display=Adjust_Index==1;

Display_A_Char_8x16(V_Page_Offset+6,48+H_Offset,DIGITS+DateTime[1]/10*16);

Display_A_Char_8x16(V_Page_Offset+6,56+H_Offset,DIGITS+DateTime[1]*16);

//秒

Reverse_Display=Adjust_Index==0;

Display_A_Char_8x16(V_Page_Offset+6,80+H_Offset,DIGITS+DateTime[0]/10*16);

Display_A_Char_8x16(V_Page_Offset+6,88+H_Offset,DIGITS+DateTime[0]*16);}

//键盘中断(INT0)

void EX_INT0() interrupt 0

{

if (K1 ==

0) //选择调整对象

{

if (Adjust_Index == -1 || Adjust_Index == 0) Adjust_Index =

7;

Adjust_Index--;

if (Adjust_Index == 5) Adjust_Index = 4; //跳过对星期的调整

}

else

if (K2 == 0)

DateTime_Adjust( 1); //加

else

if (K3 == 0)

DateTime_Adjust( -1

); //减

else

if (K4 ==

0) //确定

{

SET_DS1302();

Adjust_Index = -1;

}

}

void main()

{

//液晶初始化

LCD_Initialize();

//显示年的固定前两位

Display_A_Char_8x16(V_Page_Offset,0+H_Offset,DIGITS+2*16);

Display_A_Char_8x16(V_Page_Offset,8+H_Offset,DIGITS);

//显示固定汉字：年月日，星期，时分秒

Display_A_WORD(V_Page_Offset,32+H_Offset,DATE_TIME_WORDS+0*32);

Display_A_WORD(V_Page_Offset,64+H_Offset,DATE_TIME_WORDS+1*32);

Display_A_WORD(V_Page_Offset,96+H_Offset,DATE_TIME_WORDS+2*32);

Display_A_WORD(V_Page_Offset+3,72+H_Offset,DATE_TIME_WORDS+3*32);

Display_A_WORD(V_Page_Offset+3,88+H_Offset,DATE_TIME_WORDS+4*32);

Display_A_WORD(V_Page_Offset+6,32+H_Offset,DATE_TIME_WORDS+5*32);

Display_A_WORD(V_Page_Offset+6,64+H_Offset,DATE_TIME_WORDS+6*32);

Display_A_WORD(V_Page_Offset+6,96+H_Offset,DATE_TIME_WORDS+7*32);

Display_A_WORD(V_Page_Offset+2,0+H_Offset,DATE_TIME_WORDS+8*32);

Display_A_WORD(V_Page_Offset+2,16+H_Offset,DATE_TIME_WORDS+9*32);

Display_A_WORD(V_Page_Offset+2,32+H_Offset,DATE_TIME_WORDS+10*32);

Display_A_WORD(V_Page_Offset+2,48+H_Offset,DATE_TIME_WORDS+11*32);

Display_A_WORD(V_Page_Offset+4,0+H_Offset,DATE_TIME_WORDS+12*32);

Display_A_WORD(V_Page_Offset+4,16+H_Offset,DATE_TIME_WORDS+13*32);

Display_A_WORD(V_Page_Offset+4,32+H_Offset,DATE_TIME_WORDS+14*32);

Display_A_WORD(V_Page_Offset+4,48+H_Offset,DATE_TIME_WORDS+15*32);

//允许INT0，T0中断

IE=0x83;

IP=0x01;

IT0=0x01;

TH0=-50000/256;

TL0=-50000/256;

TR0=1;

while(1)

{

//如果未执行调整操作则正常读取当前时间

if(Adjust_Index==-1)GetTime();

}

}

// 名称：12864LCD显示驱动程序(不带字库)

//-------------------------------------------------------------

#include

#include

#define unchar unsigned char

#define uint unsigned int

#define LCD_DB_PORT P0 //液晶DB0-DB7

#define LCD_START_ROW 0xC0 //起始行

#define

LCD_PAGE 0xB8 //页指令

#define LCD_COL 0x40 //列指令

//液晶引脚定义

sbit DI =P2^0 ;

sbit RW =P2^1 ;

sbit E =P2^2 ;

sbit CS1 =P2^3 ;

sbit CS2 =P2^4 ;

sbit rst =P2^5 ;

bit Reverse_Display =0;

//-----------------------------------------------------------

//检查LCD是否忙

//-----------------------------------------------------------

bit LCD_Check_Busy ()

{

LCD_DB_PORT =0xFF;

RW =1; _nop_(); DI =0;

E =1;_nop_(); E =0;

return (bit) (P0 & 0x80);

}

//-----------------------------------------------------------

// 向LCD发送命令

//-----------------------------------------------------------

void LCD_Write_Command( unchar c)

{

while (LCD_Check_Busy ());

LCD_DB_PORT =0xFF; RW =0; _nop_();DI =0;

LCD_DB_PORT = c; E

=1; _nop_();E =0;

}

//-----------------------------------------------------------

//向LCD发送数据

//-----------------------------------------------------------

//向LCD发送数据

void LCD_Write_Data(uchar d )

{

while(LCD_Check_Busy());

LCD_DB_PORT = 0xFF;

RW = 0; _nop_();DI = 1;

//根据Reverse_Display决定是否反相显示

if (! Reverse_Display) LCD_DB_PORT = d; else

LCD_DB_PORT = ~d;

E = 1 ;_nop_(); E = 0;

}

//初始化LCD

void LCD_Initialize()

{

CS1 = 1; CS2 = 1;

LCD_Write_Command(0x38);

LCD_Write_Command(0x0F);

LCD_Write_Command(0x01);

LCD_Write_Command(0x06);

LCD_Write_Command(LCD_START_ROW);}

void Common_Show(uchar P,uchar L,uchar W,uchar *r)reentrant

{

uchar i;

if(L<64)//显示在左半屏或左右半屏

{

CS1=1; CS2=0;

LCD_Write_Command( LCD_PAGE+P);

LCD_Write_Command(LCD_COL + L);

if(L+W<64)

{

for(i=0;i

}

else//如果月结则跨越左右半屏显示

{

for(i=0;i<64-L;i++) LCD_Write_Data(r[i]);

CS1=0;CS2=1;

LCD_Write_Command(LCD_PAGE+P);

LCD_Write_Command(LCD_COL);

for(i=64-L;i

}

}

else // 全屏显示在右半屏

{

CS1=0;CS2=1;

LCD_Write_Command(LCD_PAGE + P);

LCD_Write_Command(LCD_COL+L-64);

for (i=0;i

LCD_Write_Data(r[i]);

}

}

//显示一个8X16点阵字符

//

void Display_A_Char_8X16(uchar P,uchar L,uchar *M) reentrant

{

Common_Show(

P, L, 8, M );

Common_Show( P

+1,L,8,M+8 );

}

//显示一个16x16点阵汉字

void Display_A_WORD(uchar P,uchar L,uchar *M) reentrant

{

Common_Show(

P, L, 16, M); //显示汉字上半部分

Common_Show(

P + 1,L, 16, M +16); //显示汉字下半部分

}

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