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#include <reg51.h>
/**********端口定義*************/
sbit RS = P1^0;
sbit RW = P1^1;
sbit E = P1^5;
#define Date P0 //定義Date口為數據口P0
unsigned char code TV1[]={"這是薛羽豪的液晶"};
unsigned char code TV2[]={"哈哈哈哈哈哈哈哈"};
unsigned char code TV3[]={"056789asdfgh "};
unsigned char code TV4[]={"！@#￥&*不是亂碼"};
void Delays(unsigned int x) //延時子函數
{ unsigned int i,j;
for(i=110;i>0;i--)
for(j=x;j>0;j--);
}
void Write_Instruction(unsigned char Parameter) //寫指令（Write/Instruction）。。形參（Parameter）
{
RS=0;
RW=0;
E=0;
Date=Parameter;
Delays(5);
E=1;
Delays(5);
E=0;
}
void Write_Date(unsigned char Parameter) //寫數據（Write/Date）。。形參（Parameter）
{
RS=1;
RW=0;
E=0;
Date=Parameter;
Delays(5);
E=1;
Delays(5);
E=0;
}
void init_Lcd() //液晶初始化（init/lcd）
{
Write_Instruction(0x01);
Delays(5);
Write_Instruction(0x0c);
Delays(5);
Write_Instruction(0x30);
Delays(5);
}
void Position_Lcd(unsigned char x,unsigned char y) //進入點設定，，液晶顯示位置（Lcd/Position）
{
unsigned char Position;
if(x==1)
{x=0x80;}
else if(x==2)
{x=0x90;}
else if(x==3)
{x=0x88;}
else if(x==4)
{x=0x98;}
Position=x+y;
Write_Instruction(Position); //顯示地址
}
void main()
{
unsigned char Num1;
RS=0;
RW=0;
E=0;
init_Lcd();
Position_Lcd(1,0);
Num1=0;
while(TV1[Num1]!='\0') //教材P176頁講述了TV1[Num1]!='\0'的意思特別是'\0'的意思（"空"在儲存器中的存儲形式是"\0"）
{
Write_Date(TV1[Num1]);
Num1++;
}
Position_Lcd(2,0);
Num1=0;
while(TV2[Num1]!='\0')
{
Write_Date(TV2[Num1]);
Num1++;
}
Position_Lcd(3,0);
Num1=0;
while(TV4[Num1]!='\0')
{
Write_Date(TV3[Num1]);
Num1++;
}
Position_Lcd(4,0);
Num1=0;
while(TV4[Num1]!='\0')
{
Write_Date(TV4[Num1]);
Num1++;
}
while(1);
}
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