lcd12864.txt

实现lcd12864字符串和数字显示 包含lcd的初始化和清屏等功能

#include <reg52.h>
#include <intrins.h>
#include <stdio.h>

#define uint  unsigned int
#define uchar  unsigned char 

uchar linex ;

void  delay_10ms( uint count ) ;

sbit  DI = P1^0 ; 
sbit  RW = P1^1 ;
sbit  E = P1^2 ;
sbit  CS1 = P1^3 ;
sbit  CS2 = P1^4 ;

sbit  LCD_BUS = P0 ;

unsigned char code num[] = {
/*--  文字:  0  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,

/*--  文字:  1  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,

/*--  文字:  2  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,

/*--  文字:  3  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,

/*--  文字:  4  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,

/*--  文字:  5  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,

/*--  文字:  6  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,

/*--  文字:  7  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,

/*--  文字:  8  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,

/*--  文字:  9  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,

/*--  文字:  A  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,

/*--  文字:  B  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,

/*--  文字:  C  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,

/*--  文字:  D  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,

/*--  文字:  E  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,

/*--  文字:  F  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,

/*--  文字:  G  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,

/*--  文字:  H  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,

/*--  文字:  I  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,

/*--  文字:  J  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,

/*--  文字:  K  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,

/*--  文字:  L  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,

/*--  文字:  M  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,

/*--  文字:  N  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,

/*--  文字:  O  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,

/*--  文字:  P  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,

/*--  文字:  Q  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,

/*--  文字:  R  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,

/*--  文字:  S  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,

/*--  文字:  T  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,

/*--  文字:  U  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,

/*--  文字:  V  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,

/*--  文字:  W  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,

/*--  文字:  X  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,

/*--  文字:  Y  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,

/*--  文字:  Z  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,

/*--  文字:     --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 ,

/*--  文字:  .  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00	,

/*--  文字:  ?  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,

/*--  文字:  ,  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,

/*--  文字:  :  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,

/*--  文字:  !  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,

/*--  文字:  —  --*/
/*--  宋体12;  此字体下对应的点阵为：宽x高=8x16   --*/
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00

};
void LCD_busy( void ) ;
void LCD_C_D( bit flag , uchar ldata ) ;
void CLRLCD( uchar number ) ;
void set_xy( uchar x , uchar y ) ;
void write_lcd( uchar x , uchar y , uchar lcd_data ) ;
void LCD_init( void ) ;
void dischs( uchar x , uchar y , uchar n , uchar fb , const uchar *s ) ;
void delay_10ms( uint count ) ;


/*忙判别*/
void LCD_busy( void ) 
{
	DI = 0 ;
	RW = 1 ;
	P0 = 0xff;
	while( 1 ) 
	{
		E = 1 ;
		if( (P0 & 0x80) != 0x80 ) 
			break;
		E = 0 ;
	} 
	E = 0 ;
}

void LCD_C_D( bit flag , uchar ldata )          /*flag=1 con flag=0 data*/
{
    DI = !flag ;    
	E = 0 ;    
	RW = 0 ;    
	P0 = ldata ;
    _nop_() ;
    E = 1 ;
    _nop_() ;    
	_nop_() ;
    E = 0 ;    
    delay_10ms( 1 ) ;
}

void CLRLCD( uchar number )   /* 清屏*/
{
    uchar data  i , j ;
    CS1 = CS2 = 1;
    for( i = 0xB8 ; i < 0xC0 ; i ++ )		  // B8 , C0
    {
        LCD_C_D( 1 , i ) ;
        LCD_C_D( 1 , 0X40 ) ;							//40
        for( j = 0; j < 0x40 ; j ++ )
            LCD_C_D( 0 , number ) ;
    }
    CS1 = CS2 = 0;
}

/*设置xy*/
void set_xy( uchar x , uchar y ) 
{
	if( x >= 64 )
	{
		CS1 = 0 ;
		CS2 = 1 ;
	}
	else
	{			    
		CS1 = 1 ;
		CS2 = 0 ;
	}

	LCD_busy() ;

	LCD_C_D( 1 , 0x40|x ) ;

	LCD_busy() ;

	LCD_C_D( 1 , 0xb8|y ) ;

	P0=0xff;
}
void write_lcd( uchar x , uchar y , uchar lcd_data )
{
	set_xy( x , y ) ;

	LCD_busy() ;
	DI = 1 ;
	RW = 0 ;
	P0 = lcd_data ; 
	E = 1 ;
	E = 0 ;

	P0=0xff;
}

/*显示初始化*/
void LCD_init( void ) 
{	
	/*开显示*/