void tone1(char speak)
{
 while(1)
  {

      caculated_temperature();
      if(speak is 1)
       {
        Sound_Play(2500,25);
        show_7seg(temp2,100); // delay_1sec
        if(temp2 !=75)
            {
             stop1=1;
             return;
            }
        }
       if(speak is 2)
           {
            Sound_Play(1500,500);
            if(temp2<95 )
             {
              stop2=1;
              return;
             }
           }
      if(sw_setting is 0)
          {
           delay_ms(10);
           while(sw_setting is 0);
           delay_ms(10);
           if(speak is 1)stop1=1;
           if(speak is 2)stop2=1;
           return;
          }

   }
}