text1.c

单片机初学入门程序,不停地循环显示数字0~9。

#include <reg51.h>
 #include <stdio.h>

void main(coid)
{
	//const unsigned design[10]={0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xC0};
	const unsigned design[10]={1,2,3,4,5,6,7,8,9,0};
	const unsigned design2[10]={0x06,0x5B,0x4F,0x66,0x67,0x7D,0x07,0x7F,0x6F,0x3F};
	unsigned int a;
	unsigned char b;

	P0 = 0X00;
	P1 = 0X00;
	P2 = 0X00;
	P3 = 0X00;

	do
	{
		for(b=0;b<10;b++)
		{
		    //P0 = 125;
			//for ( a=0;a<10000; a++ )
			//	P0 = design[b];
			//P2 = 0xFF;
		//	for ( a=0;a<10000; a++ )
			//	P2 = design2[b];
			P0 = 0XF1;
			P1 = 0XF2;
			P2 = 0XF3;
			P3 = 0XF4;

		}
	
	}while(1);
}