單片機控制8*8點陣動態左右動態顯示，并實現改變方向

ID:458698 · 發表于 2018-12-30 18:40

附原理圖與程序

#include<reg51.h>
#include<math.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define data1 P0
#define data2 P2
sbit s1=P3^6;
sbit s2=P3^7;
bit fangxiang;
uint alt=0,net=0,sl=8*10;
bit mode;
uchar code tab[]={
// (0) 0(1) 1(2) 2(3) 3(4) 4(5) 5(6) 6(7) 7(8) 8(9) 9(10)  (11)

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",0*/

0x00,0x1C,0x22,0x22,0x22,0x22,0x1C,0x00,/*"0",1*/

0x00,0x12,0x12,0x3E,0x02,0x02,0x00,0x00,/*"1",2*/

0x00,0x12,0x26,0x26,0x26,0x2A,0x36,0x00,/*"2",3*/

0x00,0x14,0x22,0x32,0x32,0x2A,0x2C,0x00,/*"3",4*/

0x00,0x08,0x14,0x24,0x26,0x7E,0x00,0x00,/*"4",5*/

0x00,0x3C,0x2A,0x2A,0x2A,0x2A,0x24,0x00,/*"5",6*/

0x00,0x1C,0x2A,0x2A,0x2A,0x2A,0x04,0x00,/*"6",7*/

0x00,0x30,0x20,0x2E,0x28,0x30,0x20,0x00,/*"7",8*/

0x00,0x34,0x2A,0x2A,0x2A,0x2A,0x34,0x00,/*"8",9*/

0x00,0x10,0x2A,0x2A,0x2A,0x2E,0x1C,0x00,/*"9",10*/

};

void delay(uint z)          //延時子函數
{
uchar x;
for(;z>0;z--)
for(x=110;x>0;x--);
}

void xianshi()                      //顯示
{
      uchar aa,i,num=2;
      for(i=0;i<16;i++)
      {
            switch(i){
                     case 0:
                              num=1;
                              break;
                     case 1:
                              num=2;
                              break;
                     case 2:
                              num=4;
                              break;
                     case 3:
                              num=8;
                              break;
                     case 4:
                              num=16;
                              break;
                     case 5:
                              num=32;
                              break;
                     case 6:
                              num=64;
                              break;
                     case 7:
                              num=128;
                              break;
                     default :
                              num=0;
                              break;
            }
            P2=0xff-num; //列掃描
            data1=tab[net+aa]; //取出上8行數據輸出
            aa++;
            delay(5);       //延時
            data1=0;  //清屏
            P1=0x00;  //消除余輝
            if(aa>15) aa=0;  //字模地址
      }

}
void main()       //主函數
{
ET1=1;       //使能定時器0
EA=1;       //開啟總中斷
TR1=1;       //開始計數
while(1)       //無限循環
{
         xianshi();  //顯示
         if(s1==0) //檢測按鍵
         {
            delay(30);  //延時消抖
               TR1=~TR1;       //按下暫停  ，暫按繼續
               while(!s1)xianshi();
               delay(30);
         }
         if(s2==0)       //檢測按鍵
         {
            delay(30);                      //延時消抖
               fangxiang=~fangxiang;  //方向取反
               while(!s2)xianshi();
               delay(30);
         }

}

void timer1() interrupt 3
{

alt++;
if(alt==30)                //到一定的時間加以實現左移
{
   alt=0;
      if(fangxiang==0)       //如果是正向正向移動
      {
               net=net+2;
         if(net>sl)  //字移動數量
         net=0;
      }
      else                         //否則反向移動
      {
         net=net-2;
               if(net<2)
               net=sl;       //字移動數量
      }
}

}