1602显示工字

/*-----------------------------------------------
??:LCD1602
??:www.doflye.net
??:shifang
??:2009.5
??:?
??:????????????
??????:1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E 7-14 DB0-DB7 15-BLA 16-BLK
------------------------------------------------*/
#include<reg52.h> //?????,?????????,???????????????
#include<intrins.h>

sbit RS = P2^4;   //????
sbit RW = P2^5;
sbit EN = P2^6;

#define RS_CLR RS=0
#define RS_SET RS=1

#define RW_CLR RW=0
#define RW_SET RW=1

#define EN_CLR EN=0
#define EN_SET EN=1

#define DataPort P0
/*------------------------------------------------
uS????,?????? unsigned char t,????
unsigned char ??????????,??????
0~255 ??????12M,?????????,????
???? T=tx2+5 uS
------------------------------------------------*/
void DelayUs2x(unsigned char t)
{
while(--t);
}
/*------------------------------------------------
mS????,?????? unsigned char t,????
unsigned char ??????????,??????
0~255 ??????12M,?????????
------------------------------------------------*/
void DelayMs(unsigned char t)
{

while(t--)
{
//????1mS
DelayUs2x(245);
DelayUs2x(245);
}
}
/*------------------------------------------------
????
------------------------------------------------*/
bit LCD_Check_Busy(void)
{
DataPort= 0xFF;
RS_CLR;
RW_SET;
EN_CLR;
_nop_();
EN_SET;
return (bit)(DataPort & 0x80);
}
/*------------------------------------------------
??????
------------------------------------------------*/
void LCD_Write_Com(unsigned char com)
{
// while(LCD_Check_Busy()); //????
DelayMs(5);
RS_CLR;
RW_CLR;
EN_SET;
DataPort= com;
_nop_();
EN_CLR;
}
/*------------------------------------------------
??????
------------------------------------------------*/
void LCD_Write_Data(unsigned char Data)
{
//while(LCD_Check_Busy()); //????
DelayMs(5);
RS_SET;
RW_CLR;
EN_SET;
DataPort= Data;
_nop_();
EN_CLR;
}

/*------------------------------------------------
????
------------------------------------------------*/
void LCD_Clear(void)
{
LCD_Write_Com(0x01);
DelayMs(5);
}
/*------------------------------------------------
???????
------------------------------------------------*/
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x);     //?????
}
else
{
LCD_Write_Com(0xC0 + x);      //
}
while (*s)
{
LCD_Write_Data( *s);
s ++;
}
}
/*------------------------------------------------
??????
------------------------------------------------*/
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x);
}
else
{
LCD_Write_Com(0xC0 + x);
}
LCD_Write_Data( Data);
}
/*------------------------------------------------
?????
------------------------------------------------*/
void LCD_Init(void)
{
LCD_Write_Com(0x38);    /*??????*/
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
LCD_Write_Com(0x08);    /*????*/
LCD_Write_Com(0x01);    /*????*/
LCD_Write_Com(0x06);    /*????????*/
DelayMs(5);
LCD_Write_Com(0x0C);    /*????????*/
}

/*------------------------------------------------*/

void gongzi()
{

LCD_Write_Com(0x40);
LCD_Write_Data(0x1f);
LCD_Write_Com(0x41);
LCD_Write_Data(0x1f);
LCD_Write_Com(0x42);
LCD_Write_Data(0x04);
LCD_Write_Com(0x43);
LCD_Write_Data(0x04);
LCD_Write_Com(0x44);
LCD_Write_Data(0x04);
LCD_Write_Com(0x45);
LCD_Write_Data(0x1f);
LCD_Write_Com(0x46);
LCD_Write_Data(0x1f);
LCD_Write_Com(0x47);
LCD_Write_Data(0x00);

}

void renzi()
{

LCD_Write_Com(0x48);
LCD_Write_Data(0x18);
LCD_Write_Com(0x49);
LCD_Write_Data(0x18);
LCD_Write_Com(0x4a);
LCD_Write_Data(0x18);
LCD_Write_Com(0x4b);
LCD_Write_Data(0x3c);
LCD_Write_Com(0x4c);
LCD_Write_Data(0x66);
LCD_Write_Com(0x4d);
LCD_Write_Data(0x3c);
LCD_Write_Com(0x4e);
LCD_Write_Data(0x00);
LCD_Write_Com(0x4f);
LCD_Write_Data(0x00);

}
void main(void)
{
LCD_Init();
LCD_Clear();//
gongzi();
renzi();
while (1)
{
LCD_Write_Com(0x80);
LCD_Write_Data(0x00);
LCD_Write_Com(0x81);
LCD_Write_Data(0x01);
// LCD_Write_String(1,0,"0x32");
// LCD_Write_String(1,1,"Archer");
//LCD_Write_String(1,1,"www.doflye.net");
//while(1);
}
}