//單行或雙行顯示
//顯示的起始位置設定
//屏幕左右移動，動畫效果
//給定一個字符數組，如何通過strlen（）來判斷字符串的長度？這樣在for初始化時，也許可以簡化程序
//最后的一行，會再次顯一遍，又返回到了第一行
//遇到\n?自動換行

//兩個外部中斷調節，自動翻頁的速度。
//暫停鍵，再次按，開始

//設置一個手動翻頁，上下鍵

//如果全用中斷那么中斷太多，如何擴展中斷？
#include?
#include?
#define?uchar?unsigned?char
#define?uint??unsigned?int
sbit?lcd_RS=P2^5;????????????????????????????????//定義寄存器
sbit?lcd_RW=P2^6;????????????????????????????????//定義是否讀寫
sbit?lcd_E=P2^7;????????????????????????????????//定義使能端
sbit?lcd_flag=P0^7;?????????????????????????????//定義是否Busy標志
sbit?pd=P1^0;
sbit?pu=P1^1;
sbit?spdd=P1^2;
sbit?spdu=P1^3;
uint?spd=600;
uchar?*app;
//uchar?dis1[]=“0123456789012345“;
//uchar?dis2[]=“abcdefghijklmnop“;
?uchar?code?dis[]=“you?bought?all?the?books?you?need?thiss?emester?yet?“;
//uchar?dis1[]=“012345“;
bit?lcd_busy（）????????????????????????????????//判斷是否忙碌?RS＝Low，RW＝High，E＝High：讀狀態
{?
????????bit?flag;????????????????
????????lcd_RS=0;?????????????????????????????//寄存器為Low
????????lcd_RW=1;?????????????????????????????//是否讀寫為High
????????lcd_E=1;??????????????????????????????//使能端為High
????????if?（lcd_flag==1）?flag=1;
????????else?flag=0;
????????lcd_E=0;
????????return?flag;?????????????????????????//返回標志，判斷是否LCD忙碌
}
void?lcd_putcommand（uchar?command）?????//寫指令?RS=LowRW=LowE=High:寫指令
{?
????????while?（lcd_busy（））;????????????//判斷是否忙碌
????????lcd_RS=0;??????????????????????????????????????????????????????????????????????????
????????lcd_RW=0;
????????lcd_E=0;???????????????????????
????????P0=command;???????????????????
????????lcd_E=1;??????????????????????
????????lcd_E=0;
}
void?lcd_putchar（uchar?putchar）??????//寫數據?RS=HighRW=LowE=High:寫數據
{?
????????while（lcd_busy（））;???????????//判斷是否忙碌
????????lcd_RS=1;
????????lcd_RW=0;
????????lcd_E=0;?????????????????????
????????P0=putchar;??????????????????
????????lcd_E=1;???????????????????
????????lcd_E=0;
}
void?lcd_moveto（uchar?xuchar?y）????????????????????//顯示字符的位置：第x行y列（X=1或2Y=1~16）
{?
????????if?（x==0）?lcd_putcommand（0x80|y-1）;?????//第一行，并初始化從第y-1個字符開始顯示
????????if?（x==1）?lcd_putcommand（0xc0|y-1）;?????//第二行，并............
}
void?lcd_delay（uint?ms）	//延時函數
{?
????????uchar?i;
????????while（ms--）
????????{
????????????????for（i=0;i<250;i++）
????????????????{
????????????????_nop_（）;_nop_（）;_nop_（）;_nop_（）;
????????????????}
????????}
}
void?lcd_init（void）
{
????????lcd_putcommand（0x38）;??lcd_delay（1）;?//LCD為2行，5×7字
????????lcd_putcommand（0x0e）;??//打開顯示，顯示光標，光標不閃
//		lcd_putcommand（0x0f）;??//....................光標閃爍??
????????lcd_delay（1）;
????????lcd_putcommand（0x06）;?lcd_delay（1）;//每次右移一字符
????????
}
void?main（void）
{
//		IT0=1;??//設置中斷觸發方式，下降沿
//	????IE=0X81;

????????//uchar?flagmi;
		uchar?*p;
		app=dis;
????????//m=strlen（dis）;
????????lcd_init（）;??????????????????????????????????????????????????????????????????????????//初始化
//????????lcd_delay（10）;		
????	IT0=1;????//設置中斷觸發方式，下降沿
		IE=0X81;??//中斷放在前面，會引起指針變量聲明錯誤
while

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????8313??2008-03-30?11:45??1602L13\1602

?????文件???????4589??2008-03-30?11:45??1602L13\1602.c

?????文件???????2102??2008-03-30?11:45??1602L13\1602.hex

?????文件?????????41??2008-03-30?11:45??1602L13\1602.lnp

?????文件??????25604??2008-03-30?11:45??1602L13\1602.LST

?????文件??????11012??2008-03-30?11:45??1602L13\1602.M51

?????文件???????9084??2008-03-30?11:45??1602L13\1602.OBJ

?????文件???????1237??2008-03-30?11:45??1602L13\1602.Opt

?????文件????????552??2008-03-30?11:45??1602L13\1602.plg

?????文件???????2160??2008-03-30?11:18??1602L13\1602.Uv2

????.......??????1239??2008-03-30?11:43??1602L13\1602_Opt.Bak

????.......??????2160??2008-03-30?11:18??1602L13\1602_Uv2.Bak

?????文件??????88263??2008-12-25?11:05??1602L13\Last?Loaded?test.DBK

?????文件???????6376??2005-03-22?15:22??1602L13\STARTUP.A51

?????文件??????14048??2008-03-30?11:45??1602L13\STARTUP.LST

?????文件????????749??2008-03-30?11:45??1602L13\STARTUP.OBJ

?????文件??????88263??2008-12-25?11:05??1602L13\test.DSN

?????文件????????768??2008-12-25?11:07??1602L13\test.PWI

?????目錄??????????0??2009-05-31?18:47??1602L13

?????文件???????8313??2008-03-30?11:45??1602L13\1602L13\1602

?????文件???????4589??2008-03-30?11:45??1602L13\1602L13\1602.c

?????文件???????2102??2008-03-30?11:45??1602L13\1602L13\1602.hex

?????文件?????????41??2008-03-30?11:45??1602L13\1602L13\1602.lnp

?????文件??????25604??2008-03-30?11:45??1602L13\1602L13\1602.LST

?????文件??????11012??2008-03-30?11:45??1602L13\1602L13\1602.M51

?????文件???????9084??2008-03-30?11:45??1602L13\1602L13\1602.OBJ

?????文件???????1237??2008-03-30?11:45??1602L13\1602L13\1602.Opt

?????文件????????552??2008-03-30?11:45??1602L13\1602L13\1602.plg

?????文件???????2160??2008-03-30?11:18??1602L13\1602L13\1602.Uv2

????.......??????1239??2008-03-30?11:43??1602L13\1602L13\1602_Opt.Bak

............此處省略11個文件信息