非常简单的8×8LED点阵c51源代码

/* 实验目的：学会8*8点阵动态扫描方法.         */ /* 实验现象：8*8点阵光柱先从0－9每隔一定的时间动态显示。  */ /*********************************************************************************************/ #include<reg52.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int uchar code row[] ={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//行扫描数组row0--row7.硬件定义为P1口。  uchar code word[][8]={ {0xC7,0xBB,0xBB,0xBB,0xBB,0xBB,0xBB,0xC7},//硬件定义为P0口。'0'  {0xEF,0x8F,0xEF,0xEF,0xEF,0xEF,0xEF,0xEF},//硬件定义为P0口。'1' {0xC7,0xBB,0xBB,0xF7,0xEF,0xDF,0xBF,0x83},//硬件定义为P0口。'2' {0xC7,0xBB,0xFB,0xC7,0xFB,0xFB,0xBB,0xC7},//硬件定义为P0口。'3' {0xE7,0xE7,0xD7,0xD7,0xB7,0x83,0xF7,0xF7},//硬件定义为P0口。'4' {0x83,0xBF,0xBF,0x87,0xFB,0xFB,0xBB,0xC7},//硬件定义为P0口。'5' {0xC7,0xBB,0xBF,0x87,0xBB,0xBB,0xBB,0xC7},//硬件定义为P0口。'6' {0x83,0xFB,0xF7,0xF7,0xF7,0xEF,0xEF,0xEF},//硬件定义为P0口。'7' {0xC7,0xBB,0xBB,0xC7,0xBB,0xBB,0xBB,0xC7},//硬件定义为P0口。'8' {0xC7,0xBB,0xBB,0xBB,0xC3,0xFB,0xBB,0xC7},//硬件定义为P0口。'9'   }; void display(uchar); void delay(uint x) { uint a,b; for(a=x;a>0;a--) for(b=100;b>0;b--); } void main() {  uint i=1000; uchar dis_num; dis_num=0; while(1) { for(i=100;i>0;i--) { if(dis_num==10) dis_num=0; display(dis_num); } dis_num++; } }  void display(uchar word_num) { uchar i; for(i=0;i<8;i++) { P1=row[i]; P0=word[word_num][i]; delay(1); P1=0xff; P0=0xff; } }