1602液晶静态显示

#include<reg52.h> //包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义
#include<intrins.h>

sbit RS = P2^4;   //定义端口
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

void DelayUs2x(unsigned char t)
{
while(--t);
}

void DelayMs(unsigned char t)
{

while(t--)
{
//大致延时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()); //忙则等待
DelayMs(5);
RS_CLR;
RW_CLR;
EN_SET;
DataPort= com;
_nop_();
EN_CLR;
}

void LCD_Write_Data(unsigned char Data)
{
//while(LCD_Check_Busy()); //忙则等待
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);     //表示第一行
}
else
{
LCD_Write_Com(0xC0 + x);      //表示第二行
}
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);    /*显示模式设置*/
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
LCD_Write_Com(0x08);    /*显示关闭*/
LCD_Write_Com(0x01);    /*显示清屏*/
LCD_Write_Com(0x06);    /*显示光标移动设置*/
DelayMs(5);
LCD_Write_Com(0x0C);    /*显示开及光标设置*/
}

void main(void)
{
LCD_Init();
LCD_Clear();//清屏
while (1)
{
LCD_Write_Char(7,0,'o');
LCD_Write_Char(8,0,'k');
LCD_Write_String(1,1,"www.doflye.net");
while(1);
}
}