51單片機(jī)點(diǎn)亮LED燈

ID:844350 · 發(fā)表于 2020-11-16 13:48

#include "reg52.h"
#include "intrins.h"

typedef unsigned char u8;
typedef unsigned int u16;

#define led P1

void delay(u16 i)
{
      while(i--);
}

void total_on()
{
                     led=0x00;
                     delay(50000);
}

void total_off()
{
                     led=0xff;
                     delay(50000);
}

void total_flash()
{
               total_on();
            total_off();
            total_on();
            total_off();
}

void left_led()
{
            u8 i;
            for(i=0;i<7;i++){
                     led=_crol_(led,1);
                     delay(50000);
            }
}

void right_led()
{
            u8 i;
               for(i=0;i<7;i++){
                     led=_cror_(led,1);
                     delay(50000);
            }
}

void main()
{
      u8 j=3;
      while(j--)
      {
            led=0xfe;
            left_led();
            total_flash();
            led=0x7f;
            right_led();
            total_flash();
      }
}

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