led.c

单片机实验

#define LEDS6
#include"reg51.h"
unsigned char code select[]={
0x01,0x02,0x04,0x08,0x10,0x20};
unsigned  char code LED_CODES[]={
0xc0,0xf9,0xa4,0xb0,0x99,
0x92,0x82,0xf8,0x80,0x90,
0x88,0x83,0xc6,0xa1,0x86,
0x8e,0xff,0x0c,0x89,0x7f,0xbf,};
void main()
{
     char i=0;
	 long int j;
	 while  (1)
	 {
	     P2=0;
		 P1=LED_CODES[i];
		 P2=select[i];
		 for(j=3000;j>0;j--);
		 i++;
		 if(i>5)
		 i=0;

	 }
}