int main(void)
#endif
{   
    BYTE i, j;
    BYTE TxSynCount = 0;
    BOOL bReceivedMessage = FALSE;
    _U16  m;

    
     #define BAUDRG 77
    /*******************************************************************/
    // Initialize the system
    /*******************************************************************/

    ANCON0 = 0XFF;     /*desactiva entradas analogicas*/
    ANCON1 = 0XFF;     /*desactiva entradas analogicas*/

    PPSUnLock();
    PPSOutput(PPS_RP10, PPS_TX2CK2);    // TX2 RP17/RC6
    PPSInput(PPS_RX2DT2, PPS_RP9);     // RX2 RP18/RC7

    PPSOutput(PPS_RP23, PPS_SDO2);    // SDO2 RP23/RD6
    PPSInput(PPS_SDI2, PPS_RP24);     // SDI2 RP24/RD7
    PPSOutput(PPS_RP22, PPS_SCK2);    // SCK2 RP22/RD5

    PPSLock();

     System_PeripheralPinSelect( ExternalInterrupt3, 19);  /*external interrupt 3 B3*/

     BoardInit();
     ConsoleInit();

     Open2USART(USART_TX_INT_OFF & USART_RX_INT_OFF & USART_EIGHT_BIT & USART_ASYNCH_MODE & USART_ADDEN_OFF, BAUDRG);
     baud2USART(BAUD_IDLE_TX_PIN_STATE_HIGH & BAUD_IDLE_RX_PIN_STATE_HIGH & BAUD_AUTO_OFF & BAUD_WAKEUP_OFF & BAUD_16_BIT_RATE & USART_RX_INT_OFF);

     Gpios_PinDirection(GPIOS_PORTD, 7, GPIOS_INPUT);  /*pin C0 como salida para SDI*/
     Gpios_PinDirection(GPIOS_PORTD, 6, GPIOS_OUTPUT); /*pin C1 como salida para SDO*/
     Gpios_PinDirection(GPIOS_PORTD, 5, GPIOS_OUTPUT); /*pin C2 como salida para SCK*/

     Spi_Init(SPI_PORT1, SPI_64DIV); /*Inicializamos SPI2*/
     Spi_Init(SPI_PORT2, SPI_64DIV); /*Inicializamos SPI2*/
     //Spi_SetMode(SPI_PORT1, 1);
     //Spi_SetMode(SPI_PORT1, 1);


    LED_1 = 1;
    LED_2 = 1;

    Read_MAC_Address();

    LED_1 = 0;
    LED_2 = 0;

                    ConsolePutROMString((ROM char *)"\r\n<MAC Addr:");
                 
                    PrintChar(myLongAddress[3]);
                    PrintChar(myLongAddress[2]);
                    PrintChar(myLongAddress[1]);
                    PrintChar(myLongAddress[0]);

                    ConsolePutROMString((ROM char *)"\r>");

        
    Printf("\r\nStarting Testing Interface for MiWi(TM) PRO Stack ...");
    #if defined(MRF24J40)
    Printf("\r\n     RF Transceiver: MRF24J40");
    #elif defined(MRF49XA)
    Printf("\r\n     RF Transceiver: MRF49XA");
    #elif defined(MRF89XA)
    Printf("\r\n     RF Transceiver: MRF89XA");
    #endif
    Printf("\r\n   Demo Instruction:");
    Printf("\r\n                     Press Enter to bring up the menu.");
    Printf("\r\n                     Type in hyper terminal to choose");
    Printf("\r\n                     menu item. ");
    Printf("\r\n\r\n");
   
    /*******************************************************************/
    // Following block display demo information on LCD of Explore 16 or 
    // PIC18 Explorer demo board.
    /*******************************************************************/
    #if defined(MRF49XA)
        LCDDisplay((char *)"MiWi PRO Test Interface MRF49XA", 0, TRUE); 
    #elif defined(MRF24J40)
        LCDDisplay((char *)"MiWi PRO Test Interface MRF24J40", 0, TRUE);
    #elif defined(MRF89XA)
        LCDDisplay((char *)"MiWi PRO Test Interface MRF89XA", 0, TRUE); 
    #endif
    
    //if( (PUSH_BUTTON_1 == 0) || ( MiApp_ProtocolInit(TRUE) == FALSE ) )
    if (PUSH_BUTTON_1 == 1)
    {  

        MiApp_ProtocolInit(FALSE);


        LED_1 = 0;
        LED_2 = 0;

        #ifdef ENABLE_ACTIVE_SCAN
        
            myChannel = 0xFF;
            ConsolePutROMString((ROM char *)"\r\nStarting Active Scan...");
            
            LCDDisplay((char *)"Active Scanning", 0, FALSE);
    
            /*******************************************************************/
            // Function MiApp_SearchConnection will return the number of 
            // existing connections in all channels. It will help to decide 
            // which channel to operate on and which connection to add.
            // The return value is the number of connections. The connection 
            //     data are stored in global variable ActiveScanResults. 
            //     Maximum active scan result is defined as 
            //     ACTIVE_SCAN_RESULT_SIZE
            // The first parameter is the scan duration, which has the same 
            //     definition in Energy Scan. 10 is roughly 1 second. 9 is a 
            //     half second and 11 is 2 seconds. Maximum scan duration is 14, 
            //     or roughly 16 seconds.
            // The second parameter is the channel map. Bit 0 of the 
            //     double word parameter represents channel 0. For the 2.4GHz 
            //     frequency band, all possible channels are channel 11 to 
            //     channel 26. As the result, the bit map is 0x07FFF800. Stack 
            //     will filter out all invalid channels, so the application 
            //     only needs to pay attention to the channels that are not 
            //     preferred.
            /*******************************************************************/
            i = MiApp_SearchConnection(10, 0x02000000);
            
            if( i > 0 )
            {
                // now print out the scan result.
                Printf("\r\nActive Scan Results: \r\n");
                for(j = 0; j < i; j++)
                {
                    Printf("Channel: ");
                    PrintDec(ActiveScanResults[j].Channel );
                    Printf("   RSSI: ");
                    PrintChar(ActiveScanResults[j].RSSIValue);
                    Printf("\r\n");
                    myChannel = ActiveScanResults[j].Channel;
                    Printf("PeerInfo: ");
                    PrintChar( ActiveScanResults[j].PeerInfo[0]);
                }
            }
        #endif

    

        /*******************************************************************/
        // Function MiApp_ConnectionMode sets the connection mode for the 
        // protocol stack. Possible connection modes are:
        //  - ENABLE_ALL_CONN       accept all connection request
        //  - ENABLE_PREV_CONN      accept only known device to connect
        //  - ENABL_ACTIVE_SCAN_RSP do not accept connection request, but 
        //                          allow response to active scan
        //  - DISABLE_ALL_CONN      disable all connection request, including
        //                          active scan request
        /*******************************************************************/
        MiApp_ConnectionMode(ENABLE_ALL_CONN);
    
    
        if( i > 0 )
        {
            /*******************************************************************/
            // Function MiApp_EstablishConnection try to establish a new 
            // connection with peer device. 
            // The first parameter is the index to the active scan result, which 
            //      is acquired by discovery process (active scan). If the value
            //      of the index is 0xFF, try to establish a connection with any 
            //      peer.
            // The second parameter is the mode to establish connection, either 
            //      direct or indirect. Direct mode means connection within the 
            //      radio range; Indirect mode means connection may or may not 
            //      in the radio range. 
            /*******************************************************************/
            if( MiApp_EstablishConnection(0, CONN_MODE_DIRECT) == 0xFF )
            {
                Printf("\r\nJoin Fail");
            }
        }    
        else
        {
            /*******************************************************************/
            // Function MiApp_StartConnection tries to start a new network 
            //
            // The first parameter is the mode of start connection. There are 
            // two valid connection modes:
            //   - START_CONN_DIRECT        start the connection on current 
            //                              channel
            //   - START_CONN_ENERGY_SCN    perform an energy scan first, 
            //                              before starting the connection on 
            //                              the channel with least noise
            //   - START_CONN_CS_SCN        perform a carrier sense scan 
            //                              first, before starting the 
            //                              connection on the channel with 
            //                              least carrier sense noise. Not 
            //                              supported on currrent radios
            //
            // The second parameter is the scan duration, which has the same 
            //     definition in Energy Scan. 10 is roughly 1 second. 9 is a 
            //     half second and 11 is 2 seconds. Maximum scan duration is 
            //     14, or roughly 16 seconds.
            //
            // The third parameter is the channel map. Bit 0 of the 
            //     double word parameter represents channel 0. For the 2.4GHz 
            //     frequency band, all possible channels are channel 11 to 
            //     channel 26. As the result, the bit map is 0x07FFF800. Stack 
            //     will filter out all invalid channels, so the application 
            //     only needs to pay attention to the channels that are not 
            //     preferred.
            /*******************************************************************/
            #ifdef ENABLE_ED_SCAN
                //LCDDisplay((char *)"Active Scanning Energy Scanning", 0, FALSE);
                ConsolePutROMString((ROM char *)"\r\nActive Scanning Energy Scanning");
                MiApp_StartConnection(START_CONN_ENERGY_SCN, 10, 0x02000000);
            #endif
        }
        
        // Turn on LED 1 to indicate ready to accept new connections
        LED_1 = 1;
    }
    else
    {
        //LCDDisplay((char *)" Network Freezer    ENABLED", 0, TRUE);
        Printf("\r\nNetwork Freezer Feature is enabled. There will be no hand-shake process.\r\n");
        LED_1 = 1;
        DumpConnection(0xFF);
    }
                   
    LCDDisplay((char *)"Start Connection on Channel %d", currentChannel, TRUE);
    LCDDisplay((char *)"Testing Menu on  Hyper Terminal", 0, FALSE);

    while(1)
    {
        /*******************************************************************/
        // Function MiApp_MessageAvailable will return a boolean to indicate 
        // if a message for application layer has been received by the 
        // transceiver. If a message has been received, all information will 
        // be stored in the rxMessage, structure of RECEIVED_MESSAGE.
        /*******************************************************************/
        if( MiApp_MessageAvailable() )
        {
            /*******************************************************************/
            // If a packet has been received, following code prints out some of
            // the information available in rxFrame.
            /*******************************************************************/
            if( rxMessage.flags.bits.secEn )
            {
                ConsolePutROMString((ROM char *)"Secured ");
            }

            if( rxMessage.flags.bits.broadcast )
            {
                ConsolePutROMString((ROM char *)"Broadcast Packet with RSSI ");
            }
            else
            {
                ConsolePutROMString((ROM char *)"Unicast Packet with RSSI ");
            }
            PrintChar(rxMessage.PacketRSSI);
            if( rxMessage.flags.bits.srcPrsnt )
            {
                ConsolePutROMString((ROM char *)" from ");
                if( rxMessage.flags.bits.altSrcAddr )
                {
                    PrintChar(rxMessage.SourceAddress[1]);
                    PrintChar(rxMessage.SourceAddress[0]);
                }
                else
                {    
                    for(i = 0; i < MY_ADDRESS_LENGTH; i++)
                    {
                        PrintChar(rxMessage.SourceAddress[MY_ADDRESS_LENGTH-1-i]);
                    }
                }    
            }

            ConsolePutROMString((ROM char *)": ");
            
            
            for(i = 0; i < rxMessage.PayloadSize; i++)
            {
                ConsolePut(rxMessage.Payload[i]);
            }
            
            // Toggle LED2 to indicate receiving a packet.
            LED_2 ^= 1;
            
            /*******************************************************************/
            // Function MiApp_DiscardMessage is used to release the current 
            // received message. After calling this function, the stack can 
            // start to process the next received message.
            /*******************************************************************/          
            MiApp_DiscardMessage();
            
            bReceivedMessage = TRUE;
            
            /*******************************************************************/
            // Following block update the total received and transmitted messages
            // on the LCD of the demo board. 
            /*******************************************************************/
            LCDTRXCount(TxNum, ++RxNum);
        }
        else
        {
         ++m;

         if(m > 8000)
         {
             m=0;
             //LED_1 ^= 1;
             
                MiApp_FlushTx();
    	        MiApp_WriteData('H');
    	        MiApp_WriteData('o');
    	        MiApp_WriteData('l');
    	        MiApp_WriteData('a');
                MiApp_WriteData('a');
                MiApp_WriteData('a');
    	        MiApp_WriteData(0x0D);
    	        MiApp_WriteData(0x0A);
               MiApp_BroadcastPacket(FALSE);

         }



            if ( ConsoleIsGetReady() )
            {
                //ProcessMenu();
            } 
        }
    }
}
Esempio n. 2
0
int main(void)
#endif
{   
    BYTE i, j;
    BYTE TxSynCount = 0;
    BYTE TxNum = 0;
    BYTE RxNum = 0;
    BOOL bReceivedMessage = FALSE;
    
    /*******************************************************************/
    // Initialize the system
    /*******************************************************************/
    BoardInit();         
    ConsoleInit();    
    DemoOutput_Greeting();

    /*******************************************************************/
    // Function MiApp_ProtocolInit initialize the protocol stack. The
    // only input parameter indicates if previous network configuration
    // should be restored. In this example, if button 1 is pressed and
    // hold when powering up, we assume the user would like to enable
    // the Network Freezer and load previous network configuration
    // from NVM.
    /*******************************************************************/
    if( (PUSH_BUTTON_1 == 0) && ( MiApp_ProtocolInit(TRUE) == TRUE ) )
    {   
        DemoOutput_NetworkFreezer();
        LED_1 = 1;
        while(PUSH_BUTTON_1 == 0);
    }
    else
    {
        /*******************************************************************/
        // Function MiApp_ProtocolInit initialize the protocol stack. In 
        // this example, if button 1 is released when powering up, we assume 
        // that the user want the network to start from scratch.
        /*******************************************************************/
        MiApp_ProtocolInit(FALSE);   

        LED_1 = 0;
        LED_2 = 0;

        myChannel = 0xFF;
        DemoOutput_StartActiveScan();

        /*******************************************************************/
        // Function MiApp_SearchConnection will return the number of 
        // existing connections in all channels. It will help to decide 
        // which channel to operate on and which connection to add.
        // The return value is the number of connections. The connection 
        //     data are stored in global variable ActiveScanResults. 
        //     Maximum active scan result is defined as 
        //     ACTIVE_SCAN_RESULT_SIZE
        // The first parameter is the scan duration, which has the same 
        //     definition in Energy Scan. 10 is roughly 1 second. 9 is a 
        //     half second and 11 is 2 seconds. Maximum scan duration is 14, 
        //     or roughly 16 seconds.
        // The second parameter is the channel map. Bit 0 of the 
        //     double word parameter represents channel 0. For the 2.4GHz 
        //     frequency band, all possible channels are channel 11 to 
        //     channel 26. As the result, the bit map is 0x07FFF800. Stack 
        //     will filter out all invalid channels, so the application 
        //     only needs to pay attention to the channels that are not 
        //     preferred.
        /*******************************************************************/
        i = MiApp_SearchConnection(10, 0xFFFFFFFF);
        DemoOutput_ActiveScanResults(i);

        /*******************************************************************/
        // Function MiApp_ConnectionMode sets the connection mode for the 
        // protocol stack. Possible connection modes are:
        //  - ENABLE_ALL_CONN       accept all connection request
        //  - ENABLE_PREV_CONN      accept only known device to connect
        //  - ENABL_ACTIVE_SCAN_RSP do not accept connection request, but 
        //                          allow response to active scan
        //  - DISABLE_ALL_CONN      disable all connection request, including
        //                          active scan request
        /*******************************************************************/
        MiApp_ConnectionMode(ENABLE_ALL_CONN);
    
        if( i > 0 )
        {
            /*******************************************************************/
            // Function MiApp_EstablishConnection try to establish a new 
            // connection with peer device. 
            // The first parameter is the index to the active scan result, which 
            //      is acquired by discovery process (active scan). If the value
            //      of the index is 0xFF, try to establish a connection with any 
            //      peer.
            // The second parameter is the mode to establish connection, either 
            //      direct or indirect. Direct mode means connection within the 
            //      radio range; Indirect mode means connection may or may not 
            //      in the radio range. 
            /*******************************************************************/
            if( MiApp_EstablishConnection(0, CONN_MODE_DIRECT) == 0xFF )
            {
                DemoOutput_JoinFail();
            }
        }    
        else
        {         
            DemoOutput_EnergyScan();
            /*******************************************************************/
            // Function MiApp_StartConnection tries to start a new network
            //
            // The first parameter is the mode of start connection. There are 
            // two valid connection modes:
            //   - START_CONN_DIRECT        start the connection on current 
            //                              channel
            //   - START_CONN_ENERGY_SCN    perform an energy scan first, 
            //                              before starting the connection on 
            //                              the channel with least noise
            //   - START_CONN_CS_SCN        perform a carrier sense scan 
            //                              first, before starting the 
            //                              connection on the channel with 
            //                              least carrier sense noise. Not
            //                              supported for current radios
            //
            // The second parameter is the scan duration, which has the same 
            //     definition in Energy Scan. 10 is roughly 1 second. 9 is a 
            //     half second and 11 is 2 seconds. Maximum scan duration is 
            //     14, or roughly 16 seconds.
            //
            // The third parameter is the channel map. Bit 0 of the 
            //     double word parameter represents channel 0. For the 2.4GHz 
            //     frequency band, all possible channels are channel 11 to 
            //     channel 26. As the result, the bit map is 0x07FFF800. Stack 
            //     will filter out all invalid channels, so the application 
            //     only needs to pay attention to the channels that are not 
            //     preferred.
            /*******************************************************************/
            MiApp_StartConnection(START_CONN_ENERGY_SCN, 10, 0xFFFFFFFF);
        }
        
        // Turn on LED 1 to indicate ready to accept new connections
        LED_1 = 1;
    }
    
    DumpConnection(0xFF);
    DemoOutput_StartConnection();                    
    DemoOutput_Instruction();

    while(1)
    {
        /*******************************************************************/
        // Function MiApp_MessageAvailable will return a boolean to indicate 
        // if a message for application layer has been received by the 
        // transceiver. If a message has been received, all information will 
        // be stored in the rxMessage, structure of RECEIVED_MESSAGE.
        /*******************************************************************/
        if( MiApp_MessageAvailable() )
        {
            DemoOutput_HandleMessage();
            
            /*******************************************************************/
            // Function MiApp_DiscardMessage is used to release the current 
            // received message. After calling this function, the stack can 
            // start to process the next received message.
            /*******************************************************************/          
            MiApp_DiscardMessage();
            
            // Toggle LED2 to indicate receiving a packet.
            LED_2 ^= 1;
            bReceivedMessage = TRUE;
            
            DemoOutput_UpdateTxRx(TxNum, ++RxNum);
        }
        else
        {
            /*******************************************************************/
            // If no packet received, now we can check if we want to send out
            // any information.
            // Function ButtonPressed will return if any of the two buttons
            // has been pushed.
            /*******************************************************************/
            BYTE PressedButton = ButtonPressed();
            switch( PressedButton )
            {
                case 1: 
                    {
                        DWORD ChannelMap = ~((DWORD)0x00000001 << currentChannel);
                        DemoOutput_InitFreqHop();

                        /*******************************************************************/
                        // Function MiApp_InitChannelHopping will start the process of 
                        // channel hopping. This function can be only called by Frquency 
                        // Agility starter and the device must have the energy detection 
                        // feature turned on. This function will do an energy detection 
                        // scan of all input channels and start the process of jumping to 
                        // the channel with least noise
                        //
                        // The only parameter of this function is the bit map of the 
                        // allowed channels. Bit 0 of the double word parameter represents 
                        // channel 0. For the 2.4GHz frequency band, the possible channels 
                        // are channel 11 to channel 26. As the result, the bit map is 
                        // 0x07FFF800. 
                        //
                        // Microchip proprietary stack does not limit the application when to
                        // do channel hopping. The typical triggers for channel hopping are:
                        //  1.  Continuous data transmission failures
                        //  2.  Periodical try the channel hopping process every few hours
                        //      or once per day
                        //  3.  Receive a request to start the channel hopping process. This
                        //      demo is an example of manually issue the request. In the 
                        //      real application, a Frequency Agility follower can send a 
                        //      message to request channel hopping and the Frequency Agility
                        //      starter will decide if start the process.
                        /*******************************************************************/
                        if( MiApp_InitChannelHopping(ChannelMap & 0xFFFFFFFF) == TRUE )
                        {
                            DemoOutput_FreqHopSuccess();
                        }
                        else
                        {
                            DemoOutput_FreqHopFail();
                        }    
                    }
                    break;
                 
                case 2:
                    
                    /*******************************************************************/                
                    // Button 2 (RB4 on PICDEM Z or RD7 on Explorer 16) pressed. We need
                    //  to send out the bitmap of word "P2P" encrypted.
                    // First call function MiApp_FlushTx to reset the Transmit buffer. 
                    //  Then fill the buffer one byte by one byte by calling function 
                    //  MiApp_WriteData
                    /*******************************************************************/
                    MiApp_FlushTx();                    
                    for(i = 0; i < 11; i++)
                    {
                        MiApp_WriteData(DE[(TxSynCount%6)][i]);
                    }
                    TxSynCount++;

                    /*******************************************************************/
                    // Function MiApp_UnicastConnection is one of the functions to 
                    // unicast a message.
                    //    The first parameter is the index of connection table for 
                    //       the peer device. In this demo, since there are only two
                    //       devices involved, the peer device must be stored in the 
                    //       first P2P Connection Entry of the connection table.
                    //    The second parameter is the boolean to indicate if we need 
                    //       to secure the frame. If encryption is applied, the 
                    //       security level and security key are defined in the 
                    //       configuration file for the transceiver
                    //
                    // Another way to unicast a message is by calling function
                    // MiApp_UnicastAddress. Instead of supplying the index of the 
                    // connection table of the peer device, this function requires the 
                    // input parameter of destination address directly.
                    /*******************************************************************/
                    if( MiApp_UnicastConnection(0, TRUE) == FALSE )
                    {
                        DemoOutput_UnicastFail();
                    }
                    else
                    {
                        TxNum++;
                    }
                    DemoOutput_UpdateTxRx(TxNum, RxNum);  
                    break;
                    
                default:
                    break;
            }   
        }
    }
}
Esempio n. 3
0
int main(void)
#endif
{   
    BYTE i, j;
    BYTE OperatingChannel = 0xFF;
    BYTE TxSynCount = 0;
    BYTE TxSynCount2 = 0;
    BYTE TxPersistFailures = 0;
    BOOL ReadyToSleep = FALSE;
    BYTE TxNum = 0;
    BYTE RxNum = 0;
    BYTE PressedButton = 0;
    
    /*******************************************************************/
    // Initialize the system
    /*******************************************************************/
    BoardInit();         
    ConsoleInit();  
    DemoOutput_Greeting();

    /*********************************************************************/
    // Function MiApp_ProtocolInit intialize the protocol stack.
    // The return value is a boolean to indicate the status of the 
    //      operation.
    // The only parameter indicates if Network Freezer should be invoked.
    //      When Network Freezer feature is invoked, all previous network
    //      configurations will be restored to the states before the 
    //      reset or power cycle
    //
    // In this example, we assume that the user wants to apply Network
    //      Freezer feature and restore the network configuration if
    //      button 1 is pressed and hold when powering up.
    /*********************************************************************/
    if( (PUSH_BUTTON_1 == 0) && ( MiApp_ProtocolInit(TRUE) == TRUE ) )
    {  
        DemoOutput_NetworkFreezer();
        while(PUSH_BUTTON_1 == 0 );
    }
    else
    {
        /*********************************************************************/
        // Function MiApp_ProtocolInit intialize the protocol stack.
        // The return value is a boolean to indicate the status of the 
        //      operation.
        // The only parameter indicates if Network Freezer should be invoked.
        //      When Network Freezer feature is invoked, all previous network
        //      configurations will be restored to the states before the 
        //      reset or power cycle
        //
        // In this example, we assume that the user wants to start from
        // scratch and ignore previous network configuration if button 1
        // is released when powering up.
        /*********************************************************************/
        MiApp_ProtocolInit(FALSE);   
        DemoOutput_StartActiveScan();
            
        while(1)
        {
            /*********************************************************************/
            // Function MiApp_SearchConnection will return the number of existing 
            // connections in all channels. It will help to decide which channel 
            // to operate on and which connection to add
            // The return value is the number of connections. The connection data
            //     are stored in global variable ActiveScanResults. Maximum active
            //     scan result is defined as ACTIVE_SCAN_RESULT_SIZE
            // The first parameter is the scan duration, which has the same 
            //     definition in Energy Scan. 10 is roughly 1 second. 9 is a half 
            //     second and 11 is 2 seconds. Maximum scan duration is 14, or 
            //     roughly 16 seconds.
            // The second parameter is the channel map. Bit 0 of the double
            //     word parameter represents channel 0. For the 2.4GHz frequency
            //     band, all possible channels are channel 11 to channel 26.
            //     As the result, the bit map is 0x07FFF800. Stack will filter
            //     out all invalid channels, so the application only needs to pay
            //     attention to the channels that are not preferred.
            /*********************************************************************/
            j = MiApp_SearchConnection(10, 0xFFFFFFFF);
            OperatingChannel = DemoOutput_ActiveScanResults(j);
        
            if( OperatingChannel != 0xFF )
            {
                /*******************************************************************/
                // Function MiApp_SetChannel assign the operation channel(frequency)
                // for the transceiver. Channels 0 - 31 has been defined for the 
                // wireless protocols, but not all channels are valid for all 
                // transceivers, depending on their hardware design, operating
                // frequency band, data rate and other RF parameters. Check the
                // definition of FULL_CHANNEL_MAP for details.
                /*******************************************************************/
                MiApp_SetChannel(OperatingChannel);
                break;
            }
            DemoOutput_Rescan();
        }

        
        /*********************************************************************/
        // Function MiApp_ConnectionMode sets the connection mode for the 
        // protocol stack. Possible connection modes are:
        //  - ENABLE_ALL_CONN       accept all connection request
        //  - ENABLE_PREV_CONN      accept only known device to connect
        //  - ENABL_ACTIVE_SCAN_RSP do not accept connection request, but allow
        //                          response to active scan
        //  - DISABLE_ALL_CONN      disable all connection request, including
        //                          active scan request
        /*********************************************************************/
        MiApp_ConnectionMode(ENABLE_ALL_CONN);
        
        /*******************************************************************/
        // Function MiApp_EstablishConnection establish connections between
        // two devices. It has two input parameters:
        // The first parameter is the index of the target device in the 
        //     active scan table. It requires a MiApp_SearchConnection call
        //     before hand. If seraching connection is not performed in 
        //     advance, user can apply 0xFF to the first parameter to 
        //     indicate that it is OK to establish connection with any 
        //     device.
        // The second parameter is the connection mode, either directly or
        //     indirectly. Direct connection is a connection in the radio
        //     range. All protocol stack support this connection mode. 
        //     Indirect connection is the connection out of radio range. 
        //     An indirect connection has to rely on other device to route 
        //     the messages between two connected devices. Indirect 
        //     connection is also called "Socket" connection in MiWi 
        //     Protocol. Since MiWi P2P protocol only handles connection 
        //     of one hop, indirect connection is not supported in MiWi 
        //     P2P protocol, but supported in other networking protocols.
        // Function MiApp_EstablishConnection returns the index of the 
        //     connected device in the connection table. If no connection 
        //     is established after predefined retry times 
        //     CONNECTION_RETRY_TIMES, it will return 0xFF. If multiple 
        //     connections have been established, it will return the one 
        //     of the indexes of the connected device.
        /*******************************************************************/
        i = MiApp_EstablishConnection(0, CONN_MODE_DIRECT);
        DemoOutput_Connected();
    }
    
    // Turn on LED 1 to indicate connection established
    LED_1 = 1;
    
    /*******************************************************************/
    // Function DumpConnection is used to print out the content of the
    // P2P Connection Entry on the hyperterminal. It may be useful in 
    // the debugging phase.
    // The only parameter of this function is the index of the 
    // Connection Entry. The value of 0xFF means to print out all
    // valid Connection Entries; otherwise, the Connection Entry
    // of the input index will be printed out.
    /*******************************************************************/
    DumpConnection(0xFF);
    
    DemoOutput_Instruction();

    while(1)
    {   
        /*******************************************************************/
        // Function MiApp_MessageAvailable will return a boolean to indicate 
        // if a message for application layer has been received by the 
        // transceiver. If a message has been received, all information will 
        // be stored in rxMessage, structure of RECEIVED_MESSAGE.
        /*******************************************************************/
        if( MiApp_MessageAvailable() )
        {
            DemoOutput_HandleMessage();
            
            /*******************************************************************/
            // Function MiApp_DiscardMessage is used to release the current 
            // received message. After calling this function, the stack can 
            // start to process the next received message.
            /*******************************************************************/ 
            MiApp_DiscardMessage();
            
            // Toggle LED2 to indicate receiving a packet.
            LED_2 ^= 1;
            
            DemoOutput_UpdateTxRx(TxNum, ++RxNum);
        }
        else 
        {
            /***********************************************************************/
            // TxPersistFailures is the local variable to track the transmission 
            // failure because no acknowledgement frame is received. Typically,
            // this is the indication of either very strong noise, or the PAN
            // has hopped to another channel. 
            /***********************************************************************/
            if( TxPersistFailures > 3 )
            {
                DemoOutput_StartResync();

                /*******************************************************************/
                // Function MiApp_TransceiverPowerState is used to set the power state
                // of RF transceiver. There are three possible states:
                //   - POWER_STATE_SLEEP        Put transceiver into sleep
                //   - POWER_STATE_WAKEUP       Wake up the transceiver only
                //   - POWER_STATE_WAKEUP_DR    Wake up and send Data Request command
                /*******************************************************************/
                MiApp_TransceiverPowerState(POWER_STATE_WAKEUP);
                
                /***********************************************************************/
                // Function MiApp_ResyncConnection is used to synchronized connection
                // if one side of communication jumped to another channel, when 
                // frequency agility is performed. Usually, this is done by the 
                // sleeping device, since the sleeping device cannot hear the broadcast 
                // of channel hopping command.
                //
                // The first parameter is the index of connection table for the peer 
                // node, which we would like to resynchronize to.
                // The second parameter is the bit map of channels to be scanned
                /***********************************************************************/
                MiApp_ResyncConnection(0, 0xFFFFFFFF);    
                TxPersistFailures = 0;
                ReadyToSleep = FALSE;
                
                DemoOutput_EndResync();
            }
            else
            {
                ReadyToSleep = TRUE;
            }    
            
            /*******************************************************************/
            // If Data Request command and data transmision has been handled,
            // as the RFD device, it is time to consider put both the radio and 
            // MCU into sleep mode to conserve power.
            /*******************************************************************/
            if( ReadyToSleep )
            {   
                ReadyToSleep = FALSE;
                
                /*******************************************************************/
                // Function MiApp_TransceiverPowerState is used to set the power 
                // state of RF transceiver. There are three possible states:
                //   - POWER_STATE_SLEEP        Put transceiver into sleep
                //   - POWER_STATE_WAKEUP       Wake up the transceiver only
                //   - POWER_STATE_WAKEUP_DR    Wake up and send Data Request 
                //                              command
                /*******************************************************************/
                MiApp_TransceiverPowerState(POWER_STATE_SLEEP);
                                    
                /*******************************************************************/
                // Prepare the condition to wake up the MCU. The MCU can either be
                // waken up by the timeout of watch dog timer (Time Synchronization 
                // off), timeout of counter with external 32KHz crystal (Time 
                // Synchronization on), or by the pin change notification interrupt 
                // by pushing the button. MCU handling of sleep preparing for 
                // different demo boards can be found in HardwareProfile.c
                /*******************************************************************/
                PrepareWakeup();
                
                // Put MCU into sleep mode
                Sleep();
                
                /*******************************************************************/
                // Handling the wakeup procedure. The steps differ for different
                // demo boards and families of MCUs. Details can be found in 
                // HardwareProfile.c
                /*******************************************************************/
                AfterWakeup();
                
                PressedButton = ButtonPressed();   
                
                /*******************************************************************/
                // Function MiApp_TransceiverPowerState is used to set the power 
                // state of RF transceiver. There are three possible states:
                //   - POWER_STATE_SLEEP        Put transceiver into sleep
                //   - POWER_STATE_WAKEUP       Wake up the transceiver only
                //   - POWER_STATE_WAKEUP_DR    Wake up and send Data Request 
                //                              command
                /*******************************************************************/
                if( MiApp_TransceiverPowerState(POWER_STATE_WAKEUP_DR) > SUCCESS )
                {
                    TxPersistFailures++;
                    DemoOutput_ConnectionLost(TxPersistFailures);
                }
                else
                {
                    if( TxPersistFailures > 0 )
                    {
                        DemoOutput_UpdateTxRx(TxNum, RxNum);
                    }
                    TxPersistFailures = 0;
                }
                
                switch( PressedButton )
                {
                    case 1: 
                        /*******************************************************************/                
                        // Button 1 pressed.
                        // First use MiApp_FlushTx to reset the Transmit buffer. Then fill 
                        // the TX buffer by calling function MiApp_WriteData
                        /*******************************************************************/
                        MiApp_FlushTx();
                        for(i = 0; i < 21; i++)
                        {
                            MiApp_WriteData(MiWi[(TxSynCount%6)][i]);
                        }
                        TxSynCount++;
                        
                        /*******************************************************************/
                        // Function MiApp_BroadcastPacket is used to broadcast a message
                        //    The only parameter is the boolean to indicate if we need to
                        //    secure the message
                        /*******************************************************************/
                        MiApp_BroadcastPacket(FALSE);
                        DemoOutput_UpdateTxRx(++TxNum, RxNum);   
                        break;
      
                    case 2:
                        /*******************************************************************/                
                        // Button 2 pressed.
                        // First use MiApp_FlushTx to reset the Transmit buffer. Then fill 
                        // the TX buffer by calling function MiApp_WriteData
                        /*******************************************************************/
                        MiApp_FlushTx();                   
                        for(i = 0; i < 11; i++)
                        {
                            MiApp_WriteData(DE[(TxSynCount2%6)][i]);
                        }
                        TxSynCount2++;
                        
                        /*******************************************************************/
                        // Function MiApp_UnicastConnection is one of the functions to 
                        // unicast a message.
                        //    The first parameter is the index of connection table for 
                        //       the peer device. In this demo, since there are only two
                        //       devices involved, the peer device must be stored in the 
                        //       first Connection Entry in the connection table.
                        //    The second parameter is the boolean to indicate if we need 
                        //       to secure the frame. If encryption is applied, the 
                        //       security level and security key are defined in the 
                        //       configuration file for the transceiver
                        //
                        // Another way to unicast a message is by calling function
                        // MiApp_UnicastAddress. Instead of supplying the index of the 
                        // connection table of the peer device, this function requires the 
                        // input parameter of destination address directly.
                        /*******************************************************************/
                        if( MiApp_UnicastConnection(0, TRUE) == FALSE )
                        {
                            DemoOutput_UnicastFail();
                        }
                        else
                        {
                            TxNum++;
                        }

                        DemoOutput_UpdateTxRx(TxNum, RxNum);
                        break;
                        
                    default:
                        break;
                }
            }
        }
    }
}