void Encoder_Exe(void)
{
  static char State;
  char EncCur = 0;
  if( !Pin_ENC_F1 )
      EncCur |= 0x40;
  if( !Pin_ENC_F2 )
      EncCur |= 0x80;
  if( EncCur == (State & 0xC0)) return;
  
  if( EncCur == 0    && State==0b10110100)
      Keyboard_SetCode(ENC_DN);              // 0->2310
  if( EncCur == 0x80 && State==0b00011110)
      Keyboard_SetCode(ENC_UP);              // 2->0132

  State = (State >> 2) | EncCur;
}