halWait(50);
         if(K_CANCEL == ScanKey())
         {
             break;
         }
      }
   }
}



/******************************************************************************
* @fn  perTestMode
*
* @brief
*      Function for performing a packet error rate (PER) test.
*
* Parameters:
*
* @param  void
*
* @return void
*
******************************************************************************/
void perTestMode(void)
{
   BYTE sendBuffer = PER_TEST_REQUEST;
   char number[16];

   BYTE* receiveBuffer;
   BYTE length;
   BYTE res;
   BYTE sender;
   WORD lastPacketNumber = 0;
   WORD thisPacketNumber;
   WORD failed = 0;

   ClearScreen();
   Print(0,5,"--PerTestMode--",1);

   Rectangle(10 , 3 , 118 , 6);
   YLED = LED_ON;
   res = radioSend(&sendBuffer, 1, remoteAddr, DO_ACK);
   YLED = LED_OFF;

   if(res == TRUE)
   {
     /*
      if(LanguageSel == 1)
      {
          Print(4,10,"RUNNING...",1);
      }
      else
      {
          Print(4,10,"進(jìn)行中...   ",1);
      }
     */
     Print(4,12,"RUNNING...",1);
      while(lastPacketNumber < PER_TOTAL_PACKET_NUMBER)
      {
         res = radioReceive(&receiveBuffer, &length, PER_RECEIVE_TIMEOUT, &sender);
         if(res == TRUE)
         {
            thisPacketNumber = *((WORD*) receiveBuffer);
            failed += (thisPacketNumber - lastPacketNumber - 1);
            lastPacketNumber = thisPacketNumber;
            //GLED = LED_ON;
         }
         else
         {
            //GLED = LED_OFF;
            failed += (PER_TOTAL_PACKET_NUMBER - lastPacketNumber);
            lastPacketNumber = PER_TOTAL_PACKET_NUMBER;
         }
      }
      if((failed == 0) &&(lastPacketNumber != 0))
      {
        /*
          if(LanguageSel == 1)
          {
              Print(1,30,"Correct!  ",1);
          }
          else
          {
            Print(1,30,"誤碼率:   ",1);
          }
        */
        Print(0,0,"    Correct!    ",1);
      }
      failed = failed / 10;
      sprintf(number, (char *)"PER: %d% ", failed);
      Print(4,20,(INT8U*)number,1);
   }
   else
   {
     /*
       if(LanguageSel == 1)
       {
          Print(4,10,"Node Unre  ",1);
       }
       else
       {
           Print(4,10,"無(wú)應(yīng)答節(jié)點(diǎn)!",1);
       }
     */
     Print(4,12,"Node Unre  ",1);
   }

   haltApplicationWithLED();
   while(ScanKey() != 0Xff);
   halWait(5);
   return;
}


/******************************************************************************
* @fn  receiveMode
*
* @brief
*      Function for receiving data.
*
* Parameters:
*
* @param  void
*
* @return void
*
******************************************************************************/
void receiveMode(void)
{
   BYTE* receiveBuffer;
   BYTE length;
   BYTE res;
   BYTE sender;
   ClearScreen();
   Print(0,5,"--ReceiveMode--",1);
   Rectangle(2 , 3 , 108 , 6);

   while( !stopApplication() )
   {
      res = radioReceive(&receiveBuffer, &length, RECEIVE_TIMEOUT, &sender);

      if(res == TRUE)
      {
         Print(4,10,"    OK   ",1);
         //GLED = LED_ON;

         if(*receiveBuffer == PER_TEST_REQUEST)
         {
            conductPerTest();
         }
         else
         {
            printRSSI(receiveBuffer[length]);
//            showState();
         }
      }
      else
      {
        /*
         if(LanguageSel == 1)
         {
            Print(4,10,"Waiting...",1);
         }
         else
         {
            Print(4,10,"等待中...  ",1);
         }
        */
        Print(4,10,"Waiting...",1);
         //GLED = LED_OFF;
      }

      //GLED = LED_OFF;
   }
   halWait(5);
   return;
}


/******************************************************************************
* @fn  conductPerTest
*
* @brief
*      Sends 1000 packets to calculate PER.
*
* Parameters:
*
* @param  void
*
* @return void
*
******************************************************************************/
void conductPerTest(void)
{
    WORD i;
    WORD sendBuffer[2];
    ClearScreen();
    Print(0,5,"--Conducting--",1);
    Rectangle(2 , 3 , 108 , 6);
    /*
    if(LanguageSel == 1)
    {
        Print(4,8,"PER test... ",1);
    }
    else
    {
        Print(4,10,"誤碼率測(cè)試...",1);
    }
    */
    Print(4,8,"PER test... ",1);
    sendBuffer[1] = PER_TOTAL_PACKET_NUMBER;

    for(i=1; i < PER_TOTAL_PACKET_NUMBER+1 ; i++)
    {
        halWait(8);
        sendBuffer[0] = i;
        radioSend((BYTE*) sendBuffer, sizeof(sendBuffer), remoteAddr, DO_NOT_ACK);
    }
}


/******************************************************************************
* @fn  printRSSI
*
* @brief
*      Printing RSSI on the LCD-display.
*
* Parameters:
*
* @param  INT8 rssi
*         New RSSI value.
*
*
* @return void
*
******************************************************************************/
void printRSSI(INT8 rssi)
{
   char rssiString[16];
   sprintf(rssiString,  (char const *)"%d dBm   ", (rssi-45));
   Print(4,8,(INT8U*)rssiString,1);

}


/******************************************************************************
* @fn  getFrequency
*
* @brief
*      Get current frequency.
*
* Parameters:
*
* @param  void
*
* @return UINT32
*         Current frequency.
*
******************************************************************************/
UINT32 getFrequency(void)
{
   UINT16 Fre = 2405;
   INT8U jsv;
   char line[6];

   ClearScreen();
   Print(0,5,"--Fre Setting--",1);
   /*
   if(LanguageSel == 1)
   {
       Print6(2,10,"Frequency is:   ",1);
   }
   else
   {
       Print(2,8,"頻率設(shè)定為:",1);
   }
   */
    Print6(2,10,"Frequency is:   ",1);
   Rectangle(2 , 4 , 108 , 7);
   while((jsv = ScanKey()) != K_OK)
   {
      while(ScanKey() != 0xff);
      if(jsv == K_UP)
      {
         if(Fre < 2485)
         {
            Fre += 5;
         }
      }
      else if (jsv == K_DOWN)
      {
         if(Fre > 2405)
         {
            Fre -= 5;
         }
      }

      sprintf(line,(char *)"%d",Fre);
      Print(5,38,(UINT8*)line,1);
   }
   while(ScanKey() != 0xff);
   return ((UINT32)Fre*1000);
}


/******************************************************************************
* @fn  getAddress
*
* @brief
*      Get current address.
*
* Parameters:
*
* @param  UINT8 a
*
* @return UINT8
*
******************************************************************************/
UINT8 getAddress(UINT8 a)
{
   UINT8 address = a;
   char line[6];
   INT8U jsv;
   ClearScreen();
   Print(0,0,"--Addr Setting--",1);
   /*
   if(LanguageSel == 1)
   {
       Print6(2,10,"Address is:   ",1);
   }
   else
   {
       Print(2,8,"地址設(shè)定為:",1);
   }
   */
   Print6(2,10,"Address is:   ",1);

   Rectangle(2 , 4 , 108 , 7);
   while(ScanKey() != 0xff);
   while((jsv = ScanKey()) != K_OK)
   {

      while(ScanKey() != 0xff);
      if(jsv == K_UP)
      {
         address++;
      }
      else if (jsv == K_DOWN)
      {
         address--;
      }

      sprintf(line,(char *)"%d   ",address);
      Print(5,48,(UINT8*)line,1);

   }
   while(ScanKey() != 0xff);
   return address;
}
/******************************************************************************
* See lcd.h for a description of this function.
******************************************************************************/
void waitVisible(BOOL visibility)
{
   UINT16 i;

   if(visibility){
      i = 100;
   }
   else{
      i = 6;
   }

   while(i--){
      halWait(10);
   }
}