代码非常简单易懂。很适合初学者。
/*********************************************************************************************/
/* 给新手的学习建议，如何快速学习单片机。 */
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/* 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。 */
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/*【声明】此程序仅用于学习与参考，引用请注明版权和作者信息！ */
/*********************************************************************************************/
#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;
}
} |
