51单片机——数码管、八位数码管、数码管显示0-9显示屏输入abc_单片机数码管0到9编程代码

一、八位数码管

#include<reg51.h>
void delay(unsigned int i);
void main()
{
	unsigned char button;
	unsigned char code disp[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0xbf};
	P0=0xff;
	P1=disp[8];
	while(1)
	{
	button=P0;
	delay(1200);
	button=P0;
		switch(button)
		{
			case 0xfe:P1=disp[0];delay(10000);while(1);break;
			case 0xfd:P1=disp[1];delay(10000);while(1);break;
			case 0xfb:P1=disp[2];delay(10000);while(1);break;
			case 0xf7:P1=disp[3];delay(10000);while(1);break;
			case 0xef:P1=disp[4];delay(10000);while(1);break;
			case 0xdf:P1=disp[5];delay(10000);while(1);break;
			case 0xbf:P1=disp[6];delay(10000);while(1);break;
			case 0x7f:P1=disp[7];delay(10000);while(1);break;
			default:break;
		}
	}
}

二、数码管显示0-9

#include<reg51.h>
void delay(unsigned int i);
void main()
{
	P1=0xc0;
	delay(1000);
	P1=0xf9;
delay(1000);
	P1=0xa4;
delay(1000);
	P1=0xb0;
delay(1000);
	P1=0x99;
delay(1000);
	P1=0x92;
delay(1000);
	P1=0x82;
delay(1000);
	P1=0xf8;
delay(1000);
	P1=0xbf;
delay(1000);
}

三、在显示屏上输入abc

#include <reg52.h>                     
#define uint unsigned int
#define uchar unsigned char
sbit	RS=P3^1;
sbit	E=P3^2;
uchar code table[]="I LOVE YOU ZZY";
void delay(ms){
uint i,j;
	for(i=0;i<ms;i++){
	for(j=0;j<123;j++){
	}
 
	}
}
void write_com(uchar com){
	E=0;
	RS=0;
	P0=com;
	delay(5);
	E=1;
	delay(5);
	E=0;
}
 
void write_data(uchar dat){
	E=0;
	RS=1;
	P0=dat;
	delay(5);
	E=1;
	delay(5);
	E=0;
}
 
void init(){
    write_com(0x38);
	write_com(0x0c);
	write_com(0x06);
	write_com(0x01);
}
 
void main(){
	uint i;
	init();
	write_com(0x80+0x40);
	for(i=0;i<16;i++){
	write_data(table[i]);
		delay(5);		
	}while(1);
 
}

仿真

链接：https://pan.baidu.com/s/1VZf1vfGFXAgWXgk8R3Mrlg 
提取码：2222