LED显示器静态显示
第一个LED显示器显示字符“b"
#include<>
#define duan P0
sbit wei1=P2^4;
sbit wei2=P2^5;
sbit wei3=P2^6;
sbit wei4=P2^7;
void mian()
{
wei1=1;
wei2=0;
wei3=0;
wei4=0;
duan=0x7c;
while(1);
}
LED显示器动态显示
在4位一体LED显示器左数第4位显示4，过1s，在左数第3位显示3，过1s，在左数第2位显示2，过1s，在左数第1位显示1，上述过程不断循环。
#include<>
#define duan P0
#define uchar unsigned char
sbit wei1=P2^4;
sbit wei2=P2^5;
sbit wei3=P2^6;
sbit wei4=P2^7;
uchar code sz[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00};
void delay(unsigned int xms)
{
unsigned int i,j;
for(i=xms;i>0;i--)
for(j=112;j>0;j--);
}
void main()
{
while(1)
{
duan=sz[4];
wei1=0;
wei2=0;
wei3=0;
wei4=1;
delay(1000);
duan=sz[3];
wei1=0;
wei2=0;
wei3=1;
wei4=0;
delay(1000);
duan=sz[2];
wei1=0;
wei2=1;
wei3=0;
wei4=0;
delay(1000);
duan=sz[1];
wei1=1;
wei2=0;
wei3=0;
wei4=0;
delay(1000);
}
}
LED显示器间隔5ms的动态显示实验程序
#include<>
#define duan P0
#define uchar unsigned char
sbit wei1=P2^4;
sbit wei2=P2^5;
sbit wei3=P2^6;
sbit wei4=P2^7;
uchar code sz[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00};
void delay(unsigned int xms)
{
unsigned int i,j;
for(i=xms;i>0;i--)
for(j=112;j>0;j--);
}
void main()
{
while(1)
{
duan=sz[4];
wei1=0;
wei2=0;
wei3=0;
wei4=1;
delay(5);
duan=sz[3];
wei1=0;
wei2=0;
wei3=1;
wei4=0;
delay(5);
duan=sz[2];
wei1=0;
wei2=1;
wei3=0;
wei4=0;
delay(5);
duan=sz[1];
wei1=1;
wei2=0;
wei3=0;
wei4=0;
delay(5);
}
}