C51数码管

C51数码管

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电路图

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主函数

#include<reg52.h>
#include"delay.h"
#include"shumaguan.h"


int main()
{		
	shumaguanj();//静态显示  效果显示b

	//shumaguand1();//动态显示 效果循环显示4321

	//shuamguand2();//动态显示 显示4321
	
		while(1);
	return 0;
}

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delay.h(C51流水灯三种操作里)

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shumaguan.h

#ifndef __SHUMAGUAN_H__
#define __SHUMAGUAN_H__
#include"delay.h"
#define duan P0
#define uchar unsigned char

sbit wei1 = P2^4;//定义第一位数码管
sbit wei2 = P2^5;//定义第二位数码管
sbit wei3 = P2^6;//定义第三位数码管
sbit wei4 = P2^7;//定义第四位数码管

uchar code sz[17]={0x3f , 0x06 , 0x5b ,0x4f , 0x66 , 0x6d ,0x7d ,0x07 , 0x7f , 0x6f ,0x77 , 0x7c , 0x39 , 0x5e , 0x79 , 0x71 , 0x00};//0,1,2,3,4,5,6,7,8,9,a,b,c,d,e,f

void shumaguanj(void);//静态显示  效果b
void shumaguand1(void);//动态显示 效果4321
void shuamguand2(void);//动态显示 长显示4321

void shumaguanj(void)
{
	wei1 = 1;
	wei2 = 0;
	wei3 = 0;
	wei4 = 0;
	duan = 0x7c;//0111 1100 "b"
	while(1);
}

void shumaguand1(void)
{
	   while(1)
	   {
	   		duan = sz[4];
			wei1 = 0;
			wei2 = 0;
			wei3 = 0;
			wei4 = 1;
			delay_xms(1000);
			duan = sz[3];
			wei1 = 0;
			wei2 = 0;
			wei3 = 1;
			wei4 = 0;
			delay_xms(1000);
			duan = sz[2];
			wei1 = 0;
			wei2 = 1;
			wei3 = 0;
			wei4 = 0;
			delay_xms(1000);
			duan = sz[1];
			wei1 = 1;
			wei2 = 0;
			wei3 = 0;
			wei4 = 0;
			delay_xms(1000);
	   }
}

void shuamguand2(void)
{
	   while(1)
	   {
	   	duan = sz[4];
			wei1 = 0;
			wei2 = 0;
			wei3 = 0;
			wei4 = 1;
			delay_xms(5);
			duan = sz[3];
			wei1 = 0;
			wei2 = 0;
			wei3 = 1;
			wei4 = 0;
			delay_xms(5);
			duan = sz[2];
			wei1 = 0;
			wei2 = 1;
			wei3 = 0;
			wei4 = 0;
			delay_xms(5);
			duan = sz[1];
			wei1 = 1;
			wei2 = 0;
			wei3 = 0;
			wei4 = 0;
			delay_xms(5);
	   }
}
#endif