标题: 单片机流水灯程序 [打印本页]

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作者: angelcat    时间: 2016-3-26 11:13
标题: 单片机流水灯程序
#include <reg51.h>

void delay()
{
  unsigned int i;

  for (i=0; i<20000; i++) {}
}

void main()
{
  unsigned char index;
  unsigned char LED;

  while (1) {
    LED = 1;
    for (index=0; index < 8; index++){
     P1 = LED;
     P2 = LED;
     P3 = LED;
    LED <<= 1;

      delay();
  }
  }
  }

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