實驗8 LCD8*8點陣

接線：

P0接J12、P1接J20、P2接J19

/**

1.控制點陣紅綠交替顯示，分别從上到下，從左到右循環閃爍三次

**/

#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--);

}

/***********************************************************

    顯示的規則

***********************************************************/

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];

           P2=0xff;

       case Top2Bottom:

           P2=0x00;

           P0=table_TopBottom[7-index];

       case Bottom2Top:

           P1=0x00;

           P0=table_TopBottom[index];

    }

    顯示3次

void Display3Time(enum DisplayDirecte displayDirecte){

    unsignedchar i,RepeatTime;

    for(RepeatTime=0;RepeatTime<3;RepeatTime++)//控制重複的次數

    {

       for(i=0;i<8;i++)                  

       {

           DisplayRule(displayDirecte,i);

           delay();

       }

void main(void)

    while(1)

       Display3Time(Left2Right);

       Display3Time(Right2Left);

       Display3Time(Top2Bottom);

       Display3Time(Bottom2Top);

   }

2.自行編碼，控制LCD顯示0~F或一些簡單漢字(紅綠交替顯示)

3./*****************************************************************************************

4.2.自行編碼，控制LCD顯示0~F或一些簡單漢字(紅綠交替顯示)     

5.******************************************************************************************/

#include<reg51.h>

#define Lenth 19

unsignedchar code tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//列選通

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 ;

  cnty=0;

  while(1)

  {

     if(cnty<Lenth)//紅色

     P1=0xFF;

     P2=tab[cntx];  // 列線

     P0=digittab[cnty][cntx];   // 行線

    else//綠色

     P2=0xFF;

     P1=tab[cntx];   // 列線

     P0=digittab[cnty-Lenth][cntx];  // 行線

   //用于控制動态掃描的速度

    if(++timecount1>=50)

     timecount1=0;

     if(++cntx>=8) cntx=0;

   //用于控制動字元間的切換速度

    if(++timecount2>=20000)

     timecount2=0;

     if(++cnty>=Lenth*2)cnty=0;

  }

本文轉自陳哈哈部落格園部落格，原文連結<b>http://www.cnblogs.com/kissazi2/p/3174560.html如需轉載請自行聯系原作者</b>

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<b>kissazi2</b>