#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 = P1^0; //定义端口
sbit RW = P1^1;
sbit EN = P2^5;
sbit DU = P2^0;
sbit WE = P2^1;
#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 cmg88()//关数码管，点阵函数
{
DU=1;
P0=0X00;
DU=0;
}
/*------------------------------------------------
延迟函数
------------------------------------------------*/
void delay(unsigned int xms)
{
unsigned int i,j; 毫秒
for(i=xms;i>0;i--)
for(j=114;j>0;j--);
}
/*------------------------------------------------
判忙函数
------------------------------------------------*/
bit LCD_Check_Busy(void)
{
DataPort= 0xFF;
RS_CLR;
RW_SET;
EN_CLR;
_nop_();
EN_SET;
return (bit)(DataPort & 0x80);
}
/*------------------------------------------------
写入命令函数
------------------------------------------------*/
void LCD_Write_Com(unsigned char com)
{
while(LCD_Check_Busy()); //忙则等待
RS_CLR;
RW_CLR;
EN_SET;
DataPort= com;
_nop_();
EN_CLR;
}
/*------------------------------------------------
写入数据函数
------------------------------------------------*/
void LCD_Write_Data(unsigned char Data)
{
while(LCD_Check_Busy()); //忙则等待
RS_SET;
RW_CLR;
EN_SET;
DataPort= Data;
_nop_();
EN_CLR;
}
/*------------------------------------------------
清屏函数
------------------------------------------------*/
void LCD_Clear(void)
{
LCD_Write_Com(0x01);
DelayMs(5);
}
/*------------------------------------------------
写入字符串函数
------------------------------------------------*/
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 ++;
}
}
/*------------------------------------------------
写入字符函数
------------------------------------------------*/
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);
}
/*------------------------------------------------
初始化函数
------------------------------------------------*/
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*/
}
/*------------------------------------------------
主函数
------------------------------------------------*/
void main(void)
{
cmg88();//关数码管，点阵函数
LCD_Init();
LCD_Clear();//清屏
while (1)
{
LCD_Write_Char(1,0,'-');
LCD_Write_Char(2,0,'-');
LCD_Write_Char(3,0,'-');
LCD_Write_Char(4,0,'-');
LCD_Write_Char(5,0,'-');
LCD_Write_Char(6,0,'>');
LCD_Write_Char(7,0,'3');
LCD_Write_Char(8,0,'<');
LCD_Write_Char(9,0,'-');
LCD_Write_Char(10,0,'-');
LCD_Write_Char(11,0,'-');
LCD_Write_Char(12,0,'-');
LCD_Write_Char(13,0,'-');
delay(2000);
LCD_Write_Char(1,0,'-');
LCD_Write_Char(2,0,'-');
LCD_Write_Char(3,0,'-');
LCD_Write_Char(4,0,'-');
LCD_Write_Char(5,0,'-');
LCD_Write_Char(6,0,'>');
LCD_Write_Char(7,0,'2');
LCD_Write_Char(8,0,'<');
LCD_Write_Char(9,0,'-');
LCD_Write_Char(10,0,'-');
LCD_Write_Char(11,0,'-');
LCD_Write_Char(12,0,'-');
LCD_Write_Char(13,0,'-');
delay(2000);
LCD_Write_Char(1,0,'-');
LCD_Write_Char(2,0,'-');
LCD_Write_Char(3,0,'-');
LCD_Write_Char(4,0,'-');
LCD_Write_Char(5,0,'-');
LCD_Write_Char(6,0,'>');
LCD_Write_Char(7,0,'1');
LCD_Write_Char(8,0,'<');
LCD_Write_Char(9,0,'-');
LCD_Write_Char(10,0,'-');
LCD_Write_Char(11,0,'-');
LCD_Write_Char(12,0,'-');
LCD_Write_Char(13,0,'-');
delay(2000);
LCD_Write_String(1,1,"6666666666");
while(1);
}
}
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