[ 8051 Project] Sáng dần 3 LED đơn giản

Code KeilC :

#include<regx52.h>
sbit LED1 = P0^5;
sbit LED2 = P0^6;
sbit LED3 = P0^7;
void delay_ms(unsigned int t);
void main()
{
 LED1=LED2=LED3=0xFF; // tat het cac led
 delay_ms(1000);
 while(1)
 {
   LED1=0x00; // sang led 1
   delay_ms(1000);      //delay 1 giay
   LED2=0x00; // sang led 2
   delay_ms(1000);
   LED3=0x00; // sang led 3
   delay_ms(1000);
   break;  // thoat khoi vong lap while
 }
}
// chuong trinh con    tao delay ms
void delay_ms(unsigned int t )
{
  unsigned int x,y;
  for(x=0;x<t;x++)
  {
   for(y=0;y<123;y++);    // vong for rong
  }
}