2020年12月03日 | 51单片机8*8LED点阵翻页 闪烁 静止 平移显示

基于单片机的LED点阵设计

基本要求：利用单片机AT89C51设计LED点阵，显示器能显示不同的字符、图形，能够用独立键控制不同字符的切换效果。

创新：显示效果可以是闪烁；静止；平移等。

任务区分：A——每隔1s闪烁1次

B——循环平移，速度自定

.

单片机源程序如下:

#include

sbit ADDR0 = P1^0;

sbit ADDR1 = P1^1;

sbit ADDR2 = P1^2;

sbit ADDR3 = P1^3;

sbit KEY   = P3^5;

unsigned int cnt,m,stage,sec=1000;

unsigned char code image[][8] = {  

                {0xFF,0xE7,0xDB,0xDB,0xDB,0xDB,0xE7,0xFF},     //0

                {0xFF,0xE7,0xEF,0xEF,0xEF,0xEF,0xC3,0xFF},     //1

    {0xFF,0xE3,0xDF,0xDF,0xE7,0xFB,0xC3,0xFF},     //2

                {0xE3,0xDF,0xDF,0xE7,0xDF,0xDF,0xE3,0xFF},     //3

                {0xFF,0xEF,0xE7,0xEB,0xC3,0xEF,0xEF,0xFF},          //4

                {0xFB,0xC3,0xFB,0xE3,0xDF,0xDF,0xE3,0xFF},                //5

                {0xE7,0xFB,0xFB,0xE3,0xDB,0xDB,0xE7,0xFF},    //6

                {0xFF,0xC3,0xDF,0xDF,0xDF,0xDF,0xDF,0xFF},    //7

                {0xE7,0xDB,0xDB,0xE7,0xDB,0xDB,0xE7,0xFF},    //8

                {0xE7,0xDB,0xDB,0xC7,0xDF,0xDF,0xE7,0xFF}     //9

};

unsigned char code image1[][8] = {              //心跳

                {0xFF,0x99,0x00,0x00,0x00,0x81,0xC3,0xE7},  //大心

                {0xFF,0xFF,0xDB,0x81,0x81,0xC3,0xE7,0xFF},  //中心

                {0xFF,0xFF,0xFF,0xDB,0xC3,0xE7,0xFF,0xFF},         //小心

};

unsigned char code image3[][8] = {              //小坦克

        {0xFE,0xFF,0xE3,0xE3,0xF7,0xFF,0xFF,0xFF},

{0xFE,0xFF,0xFF,0xE3,0xE3,0xF7,0xFF,0xFF},

{0xFE,0xFF,0xFF,0xFF,0xE3,0xE3,0xF7,0xFF},

{0xFE,0xFF,0xFF,0xFF,0xF3,0xE3,0xF3,0xFF},

{0xFE,0xFF,0xFF,0xFF,0xE7,0xC7,0xE7,0xFF},

{0xFE,0xFF,0xFF,0xFF,0xCF,0x8F,0xCF,0xFF},

{0xFE,0xFF,0xFF,0xFF,0xDF,0x8F,0x8F,0xFF},

{0xFE,0xFF,0xFF,0xDF,0x8F,0x8F,0xFF,0xFF},

{0xFE,0xFF,0xDF,0x8F,0x8F,0xFF,0xFF,0xFF},

{0xFE,0xDF,0x8F,0x8F,0xFF,0xFF,0xFF,0xFF},

};

unsigned char code image2[] = {                  //0-->9平移

                0xFF,0xE7,0xDB,0x5A,0x5A,0xDB,0xE7,0xFF,0xFF,0xE7,0xEF,0x6E,0x6E,0xEF,0xC3,0xFF,

                0xFF,0xE3,0xDF,0x5E,0x66,0xFB,0xC3,0xFF,0xE3,0xDF,0xDF,0x66,0x5E,0xDF,0xE3,0xFF,

                0xFF,0xEF,0xE7,0x6A,0x42,0xEF,0xEF,0xFF,0xFB,0xC3,0xFB,0x62,0x5E,0xDF,0xE3,0xFF,

                0xE7,0xFB,0xFB,0x62,0x5A,0xDB,0xE7,0xFF,0xFF,0xC3,0xDF,0x5E,0x5E,0xDF,0xDF,0xFF,

                0xE7,0xDB,0xDB,0x66,0x5A,0xDB,0xE7,0xFF,0xE7,0xDB,0xDB,0x46,0x5E,0xDF,0xE7,0xFF,

};

void Delay10ms()               

{

        unsigned char i, j;

        i = 20;

        j = 113;

        do

        {

                while (--j);

        } while (--i);

}

void main()

{

    EA = 1;       //使能总中断

    ADDR3 = 0;

    TMOD = 0x01;  //设置T0为模式1

    TH0  = 0xFC;  //为T0赋初值0xFC67，定时1ms

    TL0  = 0x67;

    ET0  = 1;     //使能T0中断

    TR0  = 1;     //启动T0

    while (1)

                {

                        if(stage>3)stage=0;

                        if(KEY==0)  

                {

                        Delay10ms();

                        if(KEY==1)stage++;

                }

                        if(cnt >= sec)

                        {

                                cnt = 0;

                                m++;

                        }

                }

}

/* 定时器0中断服务函数 */

void InterruptTimer0() interrupt 1

{

    static unsigned char i = 0;  //动态扫描的索引

          static unsigned char tmr = 0;  //250ms软件定时器

    static unsigned char index = 0;  //图片刷新索引

    TH0 = 0xFC;  //重新加载初值

    TL0 = 0x67;

    P0 = 0xFF;   //显示消隐

                cnt++;

        /***********************模式一：数字闪出***********************************/

                if(stage==0)                    

                {

                        sec = 1000;

                        if(m>=10)m=0;

                        switch (i)

                        {

                                        case 0: ADDR2=0; ADDR1=0; ADDR0=0; i++; P0=image[m][0]; break;

                                        case 1: ADDR2=0; ADDR1=0; ADDR0=1; i++; P0=image[m][1]; break;

                                        case 2: ADDR2=0; ADDR1=1; ADDR0=0; i++; P0=image[m][2]; break;

                                        case 3: ADDR2=0; ADDR1=1; ADDR0=1; i++; P0=image[m][3]; break;

                                        case 4: ADDR2=1; ADDR1=0; ADDR0=0; i++; P0=image[m][4]; break;

                                        case 5: ADDR2=1; ADDR1=0; ADDR0=1; i++; P0=image[m][5]; break;

                                        case 6: ADDR2=1; ADDR1=1; ADDR0=0; i++; P0=image[m][6]; break;

                                        case 7: ADDR2=1; ADDR1=1; ADDR0=1; i=0; P0=image[m][7]; break;

                                        default: break;

                        }

                }

        /**********************模式二：动态爱心************************************/

                else if(stage==1)

                {

                        sec = 150;

                        if(m>=3)m=0;

                        switch (i)

                        {

                                        case 0: ADDR2=0; ADDR1=0; ADDR0=0; i++; P0=image1[m][0]; break;

                                        case 1: ADDR2=0; ADDR1=0; ADDR0=1; i++; P0=image1[m][1]; break;

                                        case 2: ADDR2=0; ADDR1=1; ADDR0=0; i++; P0=image1[m][2]; break;

                                        case 3: ADDR2=0; ADDR1=1; ADDR0=1; i++; P0=image1[m][3]; break;

                                        case 4: ADDR2=1; ADDR1=0; ADDR0=0; i++; P0=image1[m][4]; break;

                                        case 5: ADDR2=1; ADDR1=0; ADDR0=1; i++; P0=image1[m][5]; break;