1.控制点阵红绿交替显示，分别从上到下，从左到右循环闪烁三次
接线：
P0接J12、P1接J20、P2接J19
/**
1.控制点阵红绿交替显示，分别从上到下，从左到右循环闪烁三次
**/
#include <REG51.H>
unsignedchar code table_LeftRight[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsignedchar code table_TopBottom[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
enum DisplayDirecte{
Left2Right,
Right2Left,
Top2Bottom,
Bottom2Top
};
void delay(void)
{
unsignedchar i,j,k;
for(k=10;k>0;k--)
for(i=20;i>0;i--)
for(j=248;j>0;j--);
}
/***********************************************************
显示的规则
***********************************************************/
void DisplayRule(enum DisplayDirecte displayDirecte,unsignedchar index){
switch(displayDirecte){
case Left2Right:
P2=table_LeftRight[index];
P0=0xff;
P1=0xff;
break;
case Right2Left:
P1=table_LeftRight[7-index];
P0=0xff;
P2=0xff;
break;
case Top2Bottom:
P2=0x00;
P1=0xff;
P0=table_TopBottom[7-index];
break;
case Bottom2Top:
P1=0x00;
P2=0xff;
P0=table_TopBottom[index];
break;
}
}
/***********************************************************
显示3次
***********************************************************/
void Display3Time(enum DisplayDirecte displayDirecte){
unsignedchar i,RepeatTime;
for(RepeatTime=0;RepeatTime<3;RepeatTime++)//控制重复的次数
{
for(i=0;i<8;i++)
{
DisplayRule(displayDirecte,i);
delay();
}
}
}
void main(void)
{
while(1)
{
Display3Time(Left2Right);
Display3Time(Right2Left);
Display3Time(Top2Bottom);
Display3Time(Bottom2Top);
}
}
2.自行编码，控制LCD显示0~F或一些简单汉字(红绿交替显示)
3./*****************************************************************************************
4.2.自行编码，控制LCD显示0~F或一些简单汉字(红绿交替显示)
5.******************************************************************************************/
#include<reg51.h>
#define Lenth 19
unsignedchar code tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//列选通
unsignedchar code digittab[Lenth][8]={
{0x00,0x00,0x3e,0x41,0x41,0x41,0x3e,0x00},//0
{0x00,0x00,0x00,0x00,0x21,0x7f,0x01,0x00},//1
{0x00,0x00,0x27,0x45,0x45,0x45,0x39,0x00},//2
{0x00,0x00,0x22,0x49,0x49,0x49,0x36,0x00},//3
{0x00,0x00,0x0c,0x14,0x24,0x7f,0x04,0x00},//4
{0x00,0x00,0x72,0x51,0x51,0x51,0x4e,0x00},//5
{0x00,0x00,0x3e,0x49,0x49,0x49,0x26,0x00},//6
{0x00,0x00,0x40,0x40,0x40,0x4f,0x70,0x00},//7
{0x00,0x00,0x36,0x49,0x49,0x49,0x36,0x00},//8
{0x00,0x00,0x32,0x49,0x49,0x49,0x3e,0x00},//9
{0x00,0x00,0x7F,0x48,0x48,0x30,0x00,0x00},//P
{0x00,0x00,0x7F,0x48,0x4C,0x73,0x00,0x00},//R
{0x00,0x00,0x7F,0x49,0x49,0x49,0x00,0x00},//E
{0x00,0x00,0x3E,0x41,0x41,0x62,0x00,0x00},//C
{0x00,0x00,0x7F,0x08,0x08,0x7F,0x00,0x00},//H
{0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00},//I
{0x00,0x7F,0x10,0x08,0x04,0x7F,0x00,0x00},//N
{0x7C,0x48,0x48,0xFF,0x48,0x48,0x7C,0x00}, //中
{0x18,0x24,0x42,0x21,0x42,0x24,0x18,0x00} //心形
};
unsignedint timecount1 , timecount2;
unsignedchar cntx , cnty ;
void main(void)
{
cnty=0;
while(1)
{
if(cnty<Lenth)//红色
{
P1=0xFF;
P2=tab[cntx]; // 列线
P0=digittab[cnty][cntx]; // 行线
}
else//绿色
{
P2=0xFF;
P1=tab[cntx]; // 列线
P0=digittab[cnty-Lenth][cntx]; // 行线
}
//用于控制动态扫描的速度
if(++timecount1>=50)
{
timecount1=0;
if(++cntx>=8) cntx=0;
}
//用于控制动字符间的切换速度
if(++timecount2>=20000)
{
timecount2=0;
if(++cnty>=Lenth*2)cnty=0;
}
}
}
本文转自陈哈哈博客园博客，原文链接http://www.cnblogs.com/kissazi2/p/3174560.html如需转载请自行联系原作者
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