二分法查表

ID:415781 · 发表于 2018-10-26 14:03

unsigned short Get_Temp(unsigned short vlotage)
{
unsigned short First=0;
unsigned short End=800;
unsigned short Difference;
for(unsigned char i=0;i<11;i++)
{
   Difference=End-First;
   if(Difference>1)  //
   {
      Difference=Difference/2+First;
      if(vlotage>temp_AD[Difference])
      {
      First=Difference;
      }
      else if(vlotage<temp_AD[Difference])
      {
      End=Difference;
      }
      else
      {
      return Difference;
      }
   }
   else          //(Difference < 1)
   {
      if((temp_AD[End]-vlotage)<(vlotage-temp_AD[First]))
         return End;
      else
         return First;
   }
}
return 0;
}

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