单只数码管循环显示0~F PROTEUS 和51单片机教程

单只数码管循环显示0~F

Proteus 仿真原理图如图所示

51单片机源代码如下
/*
单只数码管循环显示0~F
*/
#include <reg51.h>
typedef unsigned char uint8;
typedef unsigned int uint16;

code uint8 LED_CODE[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,
0x80,0x90,0x88,0x83,0xA7,0xA1,0x86,0x8E};

void delay(uint16 x)
{
uint16 i,j;
for(i = x; i > 0; i --)
for(j = 114; j > 0; j --);
}

void main()
{
uint8 i = 0;
while(1)
{
for(i = 0; i < 16; i ++) //i = (i + 1) % 16
{
P0 = LED_CODE[i];
delay(500);
}
}
}