LED小灯闪烁程序
//LED闪烁程序#include<reg52.h>
sbit LED = P0^ 0;
sbit ADDR0 = P1 ^ 0;
sbit ADDR1 = P1 ^ 1;
sbit ADDR2 = P1 ^ 2;
sbit ADDR3 = P1 ^ 3;
sbit ENLED = P1 ^ 4;
void main(void)
{
int i = 0;//定义整形变量用于后面计数延时
//74HC138芯片使能
ENLED = 0;
ADDR3 = 1;
//三极管Q16导通
ADDR2 = 1;
ADDR1 = 1;
ADDR0 = 0;
while (1)
{
LED = 0;//小灯打开
for (i = 0; i < 9000; i++)//延时
;
LED = 1;//小灯关闭
for (i = 0; i < 9000; i++)//延时
;
}
}//LED闪烁程序
#include<reg52.h>
sbit ADDR0 = P1 ^ 0;
sbit ADDR1 = P1 ^ 1;
sbit ADDR2 = P1 ^ 2;
sbit ADDR3 = P1 ^ 3;
sbit ENLED = P1 ^ 4;
void main(void)
{
int i = 0;//定义整形变量用于后面计数延时
//74HC138芯片使能
ENLED = 0;
ADDR3 = 1;
//三极管Q16导通
ADDR2 = 1;
ADDR1 = 1;
ADDR0 = 0;
while (1)
{
P0 = 0xFE;//小灯打开
for (i = 0; i < 9000; i++)//延时
;
P0 = 0xFF;//小灯关闭
for (i = 0; i < 9000; i++)//延时
;
}
}
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