如何改写这个单片机中断程序，灯亮5分钟，灭1分钟，最多循环5次。谢谢大神求帮助

ID:707421 · 发表于 2020-6-3 09:07

void Timer0_Service() interrupt 1
{
static uint count = 0;
static uchar flag = 0;
      static uchar flag2 = 0;
      unsigned int i,j;
//count = 0;
  TR0 = 0;
TH0 = 0xec;
TL0 = 0x78;
  TR0 = 1 ;
count++;
      LED1=1;
      LED2=0;
      //bell=1;
      if( count ==30000)
{
   bell =0;
   count = 0;
               count++;
               LED1=0;
               LED2=0;
      /* TH0 = 0xec;
TL0 = 0x78; */
               flag++;
            /*for(i=0;i<11000;i++)
               {for(j=0;j<1100;j++);}
               i=0;j=0;*/
}
  if( flag ==5)
{
   bell=1;
            // flag = 0;
   //TR0 = 0;

               /*TH0 = 0xec;
   TL0 = 0x78; */
               LED2=0;
               LED1=1;
               //count=0;
               /*       for(i=0;i<11000;i++)
               {for(j=0;j<11000;j++);}
               i=0;j=0;*/
}
      if( flag ==5)
            {
   flag = 0;
   //TR0 = 0;
                     LED2=0;
               LED1=0;
                     TH0 = 0xec;
   TL0 = 0x78;
               count=0;
               /*       for(i=0;i<11000;i++)
               {for(j=0;j<11000;j++);}
               i=0;j=0;*/
}
}