Esempio n. 1
0
File: main.c Progetto: oter/BSPTools
//*****************************************************************************
//
//! \brief     Email Application Main Task - Initializes SimpleLink Driver
//!            and Handles UART Commands
//!
//! \param    pvParameters        -    pointer to the task parameter
//!
//! \return  void
//! \note
//! \warning
//
//*****************************************************************************
static void SimpleEmail(void *pvParameters)
{
    long lRetVal = -1;
    // Initialize Network Processor
    lRetVal = Network_IF_InitDriver(ROLE_STA);
    if(lRetVal < 0)
    {
           UART_PRINT("Failed to start SimpleLink Device\n\r");
        LOOP_FOREVER();
    }

    //Glow GreenLED to indicate successful initialization
    GPIO_IF_LedOn(MCU_ON_IND);
    
    //Set Default Parameters for Email
    lRetVal = SetDefaultParameters();
    if(lRetVal < 0)
    {
        UART_PRINT("Failed to set default params for Email\r\n");
        LOOP_FOREVER();
    }

    //Initialize Push Botton Switch
    Button_IF_Init(SmartConfigInterruptHandler,SendEmailInterruptHandler);

    while(1)
    {
        UART_PRINT("Cmd#");
        //
        // Get command from UART
        //
        memset(ucUARTBuffer,0,200);  
        uiUartCmd=GetCmd(&ucUARTBuffer[0], 200);
        if(uiUartCmd)
        {
            //
            // Parse the command
            //
            lRetVal = UARTCommandHandler(ucUARTBuffer);
            if(lRetVal < 0)
            {
                UART_PRINT("Failed to parse the command.\r\n");
                LOOP_FOREVER();
            }
        }

    }
}
Esempio n. 2
0
//****************************************************************************
//
//! Task function implementing the TCP server and showcasing the  
//! deepsleep functionality
//!
//! \param none
//! 
//! This function  
//!    1. Creates a TCP socket and binds to it
//!    2. Listens on the socket
//!    3. Accepts a client connection
//!    4. Receives a packet on the socket
//!    5. Closes the socket
//!
//! \return None.
//
//****************************************************************************
void TCPServerTask(void *pvParameters)
{
    int iSocketDesc, iClientFD;
    struct sockaddr_in sClientAddr;
    int iRecvLen;
    unsigned int iClientAddrLen = sizeof(sClientAddr);
    unsigned char aucRecvBuffer[MAX_BUF];

    DisplayBanner(APPLICATION_NAME);

    DBG_PRINT("DEEPSLEEP: Test Begin\n\r");

    //
    // GPIO Configuration
    //
    GPIO_IF_LedConfigure(LED1|LED3);

    GPIO_IF_LedOff(MCU_RED_LED_GPIO);
    GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);	

    //
    // Start the driver
    //
    Network_IF_InitDriver(ROLE_STA);

    GPIO_IF_LedOn(MCU_GREEN_LED_GPIO);
    LedTimerConfigNStart();

    // Initialize AP security params
    SecurityParams.Key = SECURITY_KEY;
    SecurityParams.KeyLen = strlen(SECURITY_KEY);
    SecurityParams.Type = SECURITY_TYPE;

    //
    // Connect to the Access Point
    //
    Network_IF_ConnectAP(SSID_NAME,SecurityParams);

    LedTimerDeinitStop();

    //
    // Switch ON RED LED to indicate that Device acquired an IP
    //
    GPIO_IF_LedOn(MCU_IP_ALLOC_IND);

    //
    // Create and Bind TCP server socket
    //
    iSocketDesc = CreateTCPServerSocket(APP_TCP_PORT);
    if(iSocketDesc < 0)
    {
        DBG_PRINT("DEEPSLEEP: Socket create failed\n");
        goto end;
    }
    DBG_PRINT("DEEPSLEEP: Socket created\n\r");
    DBG_PRINT("DEEPSLEEP: Listening on Socket...\n\r");

    //
    // Start Listening on the socket
    //
    if( listen(iSocketDesc, 5) != 0)
    {
        DBG_PRINT("DEEPSLEEP: Listen failed\n\r");
        goto end;
    }

    while(FOREVER)
    {
        //
        // Accept new client connections (Here just one)
        //
        DBG_PRINT("DEEPSLEEP: Waiting for client.......\n\r");
        iClientFD = accept(iSocketDesc, 
                       (struct sockaddr*)&sClientAddr, 
                       &iClientAddrLen);
        DBG_PRINT("DEEPSLEEP: Connected to client [0x%x] \n\r", 
                           htonl(sClientAddr.sin_addr.s_addr));

        do
        {
            //
            // Receive on the socket
            //
            iRecvLen = recv(iClientFD,aucRecvBuffer,MAX_BUF,0);

            if(iRecvLen > 0)
            {
                DBG_PRINT("DEEPSLEEP: received %d bytes\n\r", iRecvLen);
                DBG_PRINT("DEEPSLEEP: received message : %s\n\r", aucRecvBuffer);
            }
        }while(iRecvLen > 0);

        //
        // Close the client descriptor
        //
        close(iClientFD);
    }

    //
    // Close the socket. Commented as not expected to reach here
    //
    //close(iSocketDesc);

end:
    DBG_PRINT("DEEPSLEEP: Test Complete\n\r");
    //
    // Loop here
    //
    while(1);
}
Esempio n. 3
0
File: main.cpp Progetto: hangc2/wif
static void TFTPTask(void *pvParameters)
{
    SlSecParams_t secParams;
    unsigned char *pucFileBuffer = NULL;  // Data read or to be written
    unsigned long uiFileSize;

    const char *FileRead = "readFromServer.txt";  // File to be read using TFTP. Change string to filename
    const char *FileWrite = "writeToServer.txt"; // File to be written using TFTP. Change string to filename.

    long pFileHandle;			// Pointer to file handle
    SlFsFileInfo_t pFsFileInfo;
    long lRetVal = -1;
    unsigned short uiTftpErrCode;


//get wifi information
  //  get_wifi_info(ap_ssid, secPrams);

    // Configuring security parameters for the AP
    secParams.Key = (_i8*)SSID_KEY;
    secParams.KeyLen = 30;
    secParams.Type = SL_SEC_TYPE_WPA_WPA2;

    lRetVal = Network_IF_InitDriver(ROLE_STA);


    // Connecting to WLAN AP - Set with static parameters defined at the top
    // After this call we will be connected and have IP address
    lRetVal = Network_IF_ConnectAP((char*)SSID,secParams);

    UART_PRINT("Connecting to TFTP server %d.%d.%d.%d\n\r",\
                  SL_IPV4_BYTE(TFTP_IP, 3),SL_IPV4_BYTE(TFTP_IP, 2),
                  SL_IPV4_BYTE(TFTP_IP, 1),SL_IPV4_BYTE(TFTP_IP, 0));
    if(TFTP_READ)
    {
        uiFileSize = FILE_SIZE_MAX;

        pucFileBuffer = new unsigned char[uiFileSize];
        if(NULL == pucFileBuffer)
        {
            UART_PRINT("Can't Allocate Resources\r\n");
            LOOP_FOREVER();
        }

        memset(pucFileBuffer,'\0',uiFileSize);

        lRetVal = sl_TftpRecv(TFTP_IP, FileRead, (char *)pucFileBuffer,\
                                &uiFileSize, &uiTftpErrCode );
        UART_PRINT("file read is %s\n", pucFileBuffer);

        if(lRetVal < 0)
        {
            free(pucFileBuffer);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        lRetVal = sl_FsGetInfo((unsigned char *)FileRead, 0, &pFsFileInfo);

        if(lRetVal < 0 )
            lRetVal = sl_FsOpen((unsigned char *)FileRead,\
                    FS_MODE_OPEN_CREATE(FILE_SIZE_MAX,_FS_FILE_OPEN_FLAG_COMMIT|\
                      _FS_FILE_PUBLIC_WRITE), NULL,&pFileHandle);
        else
            lRetVal = sl_FsOpen((unsigned char *)FileRead,FS_MODE_OPEN_WRITE, \
                                NULL,&pFileHandle);

        if(lRetVal < 0)
        {
            free(pucFileBuffer);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        lRetVal = sl_FsWrite(pFileHandle,0, pucFileBuffer, uiFileSize);

        if(lRetVal < 0)
        {
            free(pucFileBuffer);
            lRetVal = sl_FsClose(pFileHandle,0,0,0);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        UART_PRINT("TFTP Read Successful \r\n");

        lRetVal = sl_FsClose(pFileHandle,0,0,0);

    }

    if(TFTP_WRITE)
    {
    	/* open same file which has been written with the server's file content */
        lRetVal = sl_FsOpen((unsigned char *)FileRead,FS_MODE_OPEN_READ, \
                                NULL,&pFileHandle);
        if(lRetVal < 0)
        {
            free(pucFileBuffer);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        lRetVal = sl_FsGetInfo((unsigned char *)FileRead, 0, &pFsFileInfo);
        if(lRetVal < 0)
        {
            lRetVal = sl_FsClose(pFileHandle,0,0,0);
            free(pucFileBuffer);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        uiFileSize = (&pFsFileInfo)->FileLen;

        lRetVal = sl_FsRead(pFileHandle, 0,  pucFileBuffer, uiFileSize);
        if(lRetVal < 0)
        {
            lRetVal = sl_FsClose(pFileHandle,0,0,0);
            free(pucFileBuffer);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        lRetVal = sl_FsClose(pFileHandle,0,0,0);
        /* write to server with different file name */
        lRetVal = sl_TftpSend(TFTP_IP, FileWrite,(char *) pucFileBuffer,\
                            &uiFileSize, &uiTftpErrCode  );
        if(lRetVal < 0)
        {
            free(pucFileBuffer);
            ERR_PRINT(lRetVal);
            LOOP_FOREVER();
        }

        UART_PRINT("TFTP Write Successful \r\n");
    }

    LOOP_FOREVER();
}
Esempio n. 4
0
//*****************************************************************************
//
//! Task implementing MQTT client communication to other web client through
//!    a broker
//!
//! \param  none
//!
//! This function
//!    1. Initializes network driver and connects to the default AP
//!    2. Initializes the mqtt library and set up MQTT connection configurations
//!    3. set up the button events and their callbacks(for publishing)
//!    4. handles the callback signals
//!
//! \return None
//!
//*****************************************************************************
void MqttClient(void *pvParameters)
{
    
    long lRetVal = -1;
    int iCount = 0;
    int iNumBroker = 0;
    int iConnBroker = 0;
    event_msg RecvQue;
    unsigned char policyVal;
    
    connect_config *local_con_conf = (connect_config *)app_hndl;

    //
    // Configure LED
    //
    GPIO_IF_LedConfigure(LED1|LED2|LED3);

    GPIO_IF_LedOff(MCU_RED_LED_GPIO);
    GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);

    //
    // Reset The state of the machine
    //
    Network_IF_ResetMCUStateMachine();

    //
    // Start the driver
    //
    lRetVal = Network_IF_InitDriver(ROLE_STA);
    if(lRetVal < 0)
    {
       UART_PRINT("Failed to start SimpleLink Device\n\r",lRetVal);
       LOOP_FOREVER();
    }

    // switch on Green LED to indicate Simplelink is properly up
    GPIO_IF_LedOn(MCU_ON_IND);

    // Start Timer to blink Red LED till AP connection
    LedTimerConfigNStart();

    // Initialize AP security params
    SecurityParams.Key = (signed char *)SECURITY_KEY;
    SecurityParams.KeyLen = strlen(SECURITY_KEY);
    SecurityParams.Type = SECURITY_TYPE;

    //
    // Connect to the Access Point
    //
    lRetVal = Network_IF_ConnectAP(SSID_NAME, SecurityParams);
    if(lRetVal < 0)
    {
       UART_PRINT("Connection to an AP failed\n\r");
       LOOP_FOREVER();
    }

    lRetVal = sl_WlanProfileAdd(SSID_NAME,strlen(SSID_NAME),0,&SecurityParams,0,1,0);

    //set AUTO policy
    lRetVal = sl_WlanPolicySet(SL_POLICY_CONNECTION,
                      SL_CONNECTION_POLICY(1,0,0,0,0),
                      &policyVal, 1 /*PolicyValLen*/);    
    
    //
    // Disable the LED blinking Timer as Device is connected to AP
    //
    LedTimerDeinitStop();

    //
    // Switch ON RED LED to indicate that Device acquired an IP
    //
    GPIO_IF_LedOn(MCU_IP_ALLOC_IND);

    UtilsDelay(20000000);

    GPIO_IF_LedOff(MCU_RED_LED_GPIO);
    GPIO_IF_LedOff(MCU_ORANGE_LED_GPIO);
    GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);
   
    //
    // Register Push Button Handlers
    //
    Button_IF_Init(pushButtonInterruptHandler2,pushButtonInterruptHandler3);
    
    //
    // Initialze MQTT client lib
    //
    lRetVal = sl_ExtLib_MqttClientInit(&Mqtt_Client);
    if(lRetVal != 0)
    {
        // lib initialization failed
        UART_PRINT("MQTT Client lib initialization failed\n\r");
        LOOP_FOREVER();
    }
    
    /******************* connection to the broker ***************************/
    iNumBroker = sizeof(usr_connect_config)/sizeof(connect_config);
    if(iNumBroker > MAX_BROKER_CONN)
    {
        UART_PRINT("Num of brokers are more then max num of brokers\n\r");
        LOOP_FOREVER();
    }

connect_to_broker:
    while(iCount < iNumBroker)
    {
        //create client context
        local_con_conf[iCount].clt_ctx =
        sl_ExtLib_MqttClientCtxCreate(&local_con_conf[iCount].broker_config,
                                      &local_con_conf[iCount].CallBAcks,
                                      &(local_con_conf[iCount]));

        //
        // Set Client ID
        //
        sl_ExtLib_MqttClientSet((void*)local_con_conf[iCount].clt_ctx,
                            SL_MQTT_PARAM_CLIENT_ID,
                            local_con_conf[iCount].client_id,
                            strlen((char*)(local_con_conf[iCount].client_id)));

        //
        // Set will Params
        //
        if(local_con_conf[iCount].will_params.will_topic != NULL)
        {
            sl_ExtLib_MqttClientSet((void*)local_con_conf[iCount].clt_ctx,
                                    SL_MQTT_PARAM_WILL_PARAM,
                                    &(local_con_conf[iCount].will_params),
                                    sizeof(SlMqttWill_t));
        }

        //
        // setting username and password
        //
        if(local_con_conf[iCount].usr_name != NULL)
        {
            sl_ExtLib_MqttClientSet((void*)local_con_conf[iCount].clt_ctx,
                                SL_MQTT_PARAM_USER_NAME,
                                local_con_conf[iCount].usr_name,
                                strlen((char*)local_con_conf[iCount].usr_name));

            if(local_con_conf[iCount].usr_pwd != NULL)
            {
                sl_ExtLib_MqttClientSet((void*)local_con_conf[iCount].clt_ctx,
                                SL_MQTT_PARAM_PASS_WORD,
                                local_con_conf[iCount].usr_pwd,
                                strlen((char*)local_con_conf[iCount].usr_pwd));
            }
        }

        //
        // connectin to the broker
        //
        if((sl_ExtLib_MqttClientConnect((void*)local_con_conf[iCount].clt_ctx,
                            local_con_conf[iCount].is_clean,
                            local_con_conf[iCount].keep_alive_time) & 0xFF) != 0)
        {
            UART_PRINT("\n\rBroker connect fail for conn no. %d \n\r",iCount+1);
            
            //delete the context for this connection
            sl_ExtLib_MqttClientCtxDelete(local_con_conf[iCount].clt_ctx);
            
            break;
        }
        else
        {
            UART_PRINT("\n\rSuccess: conn to Broker no. %d\n\r ", iCount+1);
            local_con_conf[iCount].is_connected = true;
            iConnBroker++;
        }

        //
        // Subscribe to topics
        //

        if(sl_ExtLib_MqttClientSub((void*)local_con_conf[iCount].clt_ctx,
                                   local_con_conf[iCount].topic,
                                   local_con_conf[iCount].qos, TOPIC_COUNT) < 0)
        {
            UART_PRINT("\n\r Subscription Error for conn no. %d\n\r", iCount+1);
            UART_PRINT("Disconnecting from the broker\r\n");
            sl_ExtLib_MqttClientDisconnect(local_con_conf[iCount].clt_ctx);
            local_con_conf[iCount].is_connected = false;
            
            //delete the context for this connection
            sl_ExtLib_MqttClientCtxDelete(local_con_conf[iCount].clt_ctx);
            iConnBroker--;
            break;
        }
        else
        {
            int iSub;
            UART_PRINT("Client subscribed on following topics:\n\r");
            for(iSub = 0; iSub < local_con_conf[iCount].num_topics; iSub++)
            {
                UART_PRINT("%s\n\r", local_con_conf[iCount].topic[iSub]);
            }
        }
        iCount++;
    }

    if(iConnBroker < 1)
    {
        //
        // no succesful connection to broker
        //
        goto end;
    }

    iCount = 0;

    for(;;)
    {
        osi_MsgQRead( &g_PBQueue, &RecvQue, OSI_WAIT_FOREVER);
        
        if(PUSH_BUTTON_SW2_PRESSED == RecvQue.event)
        {
            Button_IF_EnableInterrupt(SW2);
            //
            // send publish message
            //
            sl_ExtLib_MqttClientSend((void*)local_con_conf[iCount].clt_ctx,
                    pub_topic_sw2,data_sw2,strlen((char*)data_sw2),QOS2,RETAIN);
            UART_PRINT("\n\r CC3200 Publishes the following message \n\r");
            UART_PRINT("Topic: %s\n\r",pub_topic_sw2);
            UART_PRINT("Data: %s\n\r",data_sw2);
        }
        else if(PUSH_BUTTON_SW3_PRESSED == RecvQue.event)
        {
            Button_IF_EnableInterrupt(SW3);
            //
            // send publish message
            //
            sl_ExtLib_MqttClientSend((void*)local_con_conf[iCount].clt_ctx,
                    pub_topic_sw3,data_sw3,strlen((char*)data_sw3),QOS2,RETAIN);
            UART_PRINT("\n\r CC3200 Publishes the following message \n\r");
            UART_PRINT("Topic: %s\n\r",pub_topic_sw3);
            UART_PRINT("Data: %s\n\r",data_sw3);
        }
        else if(BROKER_DISCONNECTION == RecvQue.event)
        {
            iConnBroker--;
            /* Derive the value of the local_con_conf or clt_ctx from the message */
			sl_ExtLib_MqttClientCtxDelete(((connect_config*)(RecvQue.hndl))->clt_ctx);
            
            if(!IS_CONNECTED(g_ulStatus))
            {
                UART_PRINT("device has disconnected from AP \n\r");
                
                UART_PRINT("retry connection to the AP\n\r");
                
                while(!(IS_CONNECTED(g_ulStatus)) || !(IS_IP_ACQUIRED(g_ulStatus)))
                {
                    osi_Sleep(10);
                }
                goto connect_to_broker;
                
            }
            if(iConnBroker < 1)
            {
                //
                // device not connected to any broker
                //
                goto end;
            }
        }
    }
end:
    //
    // Deinitializating the client library
    //
    sl_ExtLib_MqttClientExit();
    UART_PRINT("\n\r Exiting the Application\n\r");
    
    LOOP_FOREVER();
}
Esempio n. 5
0
File: main.c Progetto: dlugaz/All
//****************************************************************************
//
//! Task function implementing the UDP client and showcasing the hibernate 
//! functionality
//!
//! \param none
//! 
//! This function  
//!    1. Creates a UDP socket
//!    2. Broadcasts a packet on the socket
//!    3. Closes the socket
//!    4. Enters the HIBernate mode
//!
//! \return None.
//
//****************************************************************************
void HIBUDPBroadcastTask(void *pvParameters)
{
    int iSocketDesc;
    long lRetVal;
    struct sockaddr_in sBroadcastAddr;
    char pcBroadcastMessage[]="32xx HIB example application";

    //
    // Check the wakeup source. If first itme entry or wakeup from HIB
    //
    if(MAP_PRCMSysResetCauseGet() == 0)
    {
        DisplayBanner(APPNAME);
        DBG_PRINT("HIB: Wake up on Power ON\n\r");
    }
    else if(MAP_PRCMSysResetCauseGet() == PRCM_HIB_EXIT)
    {
        DBG_PRINT("HIB: Woken up from Hibernate\n\r");
    }
    else
    {

    }
    GPIO_IF_LedConfigure(LED1);

    GPIO_IF_LedOff(MCU_RED_LED_GPIO);


    //
    // Configure Timer for blinking the LED for IP acquisition
    //
    LedTimerConfigNStart();

    //
    //
    // Reset The state of the machine
    //
    Network_IF_ResetMCUStateMachine();

    //
    // Start the driver
    //
    lRetVal = Network_IF_InitDriver(ROLE_STA);
    if(lRetVal < 0)
    {
       UART_PRINT("Failed to start SimpleLink Device\n\r");
       LOOP_FOREVER();
    }

    // Initialize AP security params
    SecurityParams.Key = (signed char*)SECURITY_KEY;
    SecurityParams.KeyLen = strlen(SECURITY_KEY);
    SecurityParams.Type = SECURITY_TYPE;

    //
    // Connect to the Access Point
    //
    lRetVal = Network_IF_ConnectAP(SSID_NAME, SecurityParams);
    if(lRetVal < 0)
    {
       UART_PRINT("Connection to AP failed\n\r",lRetVal);
       LOOP_FOREVER();
    }

    //
    // Disable the LED blinking Timer as Device is connected to AP
    //
    LedTimerDeinitStop();

    //
    // Switch ON RED LED to indicate that Device acquired an IP
    //
    GPIO_IF_LedOn(MCU_IP_ALLOC_IND);

    //
    // Create UDP socket
    //
    iSocketDesc = sl_Socket(AF_INET, SOCK_DGRAM, 0);
    if(iSocketDesc < 0)
    {
        DBG_PRINT("HIB: Socket create failed\n\r");
        goto end;
    }
    DBG_PRINT("HIB: Socket created\n\r");

    //
    // Assign socket structure values for a braodcast message
    //
    sBroadcastAddr.sin_family = AF_INET;
    sBroadcastAddr.sin_addr.s_addr= sl_Htonl(0xFFFFFFFF);
    sBroadcastAddr.sin_port= sl_Htons(APP_UDP_PORT);

    //
    // Broadcast message
    //
    lRetVal = sendto(iSocketDesc, (char *)&pcBroadcastMessage[0],
                        sizeof(pcBroadcastMessage), 0,
                     (struct sockaddr *)&sBroadcastAddr,sizeof(sBroadcastAddr));
    if(lRetVal < 0)
    {
        ERR_PRINT(lRetVal);
        LOOP_FOREVER();
    }

    UNUSED(lRetVal);
    DBG_PRINT("HIB: sent message\n\r");

    //
    // Close the socket
    //
    close(iSocketDesc);
    DBG_PRINT("HIB: Socket closed\n\r");

    //
    // Stop the driver
    //
    lRetVal = Network_IF_DeInitDriver();
    if(lRetVal < 0)
    {
       UART_PRINT("Failed to stop SimpleLink Device\n\r");
       LOOP_FOREVER();
    }

    //
    // Switch Off RED & Green LEDs to indicate that Device is
    // disconnected from AP and Simplelink is shutdown
    //
    GPIO_IF_LedOff(MCU_IP_ALLOC_IND);
    GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);

    //
    // Enter HIB here configuring the wakeup-timer
    //
    EnterHIBernate();
end:
    DBG_PRINT("HIB: Test Complete\n\r");

    //
    // Loop here
    //
    LOOP_FOREVER();
}
Esempio n. 6
0
File: main.c Progetto: nqd/cc3200
//****************************************************************************
//
//! Task function implementing the gettime functionality using an NTP server
//!
//! \param none
//!
//! This function
//!    1. Initializes the required peripherals
//!    2. Initializes network driver and connects to the default AP
//!    3. Creates a UDP socket, gets the NTP server IP address using DNS
//!    4. Periodically gets the NTP time and displays the time
//!
//! \return None.
//
//****************************************************************************
void GetNTPTimeTask(void *pvParameters)
{
    int iSocketDesc;
    long lRetVal = -1;

    UART_PRINT("GET_TIME: Test Begin\n\r");

    //
    // Configure LED
    //
    GPIO_IF_LedConfigure(LED1|LED3);

    GPIO_IF_LedOff(MCU_RED_LED_GPIO);
    GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);    


    //
    // Reset The state of the machine
    //
    Network_IF_ResetMCUStateMachine();

    //
    // Start the driver
    //
    lRetVal = Network_IF_InitDriver(ROLE_STA);
    if(lRetVal < 0)
    {
       UART_PRINT("Failed to start SimpleLink Device\n\r",lRetVal);
       LOOP_FOREVER();
    }

    // switch on Green LED to indicate Simplelink is properly up
    GPIO_IF_LedOn(MCU_ON_IND);

    // Start Timer to blink Red LED till AP connection
    LedTimerConfigNStart();

    // Initialize AP security params
    SecurityParams.Key = (signed char *)SECURITY_KEY;
    SecurityParams.KeyLen = strlen(SECURITY_KEY);
    SecurityParams.Type = SECURITY_TYPE;

    //
    // Connect to the Access Point
    //
    lRetVal = Network_IF_ConnectAP(SSID_NAME, SecurityParams);
    if(lRetVal < 0)
    {
       UART_PRINT("Connection to an AP failed\n\r");
       LOOP_FOREVER();
    }

    //
    // Disable the LED blinking Timer as Device is connected to AP
    //
    LedTimerDeinitStop();

    //
    // Switch ON RED LED to indicate that Device acquired an IP
    //
    GPIO_IF_LedOn(MCU_IP_ALLOC_IND);

    //
    // Create UDP socket
    //
    iSocketDesc = sl_Socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
    if(iSocketDesc < 0)
    {
        ERR_PRINT(iSocketDesc);
        goto end;
    }
    g_sAppData.iSockID = iSocketDesc;

    UART_PRINT("Socket created\n\r");

    //
    // Get the NTP server host IP address using the DNS lookup
    //
    lRetVal = Network_IF_GetHostIP((char*)g_acSNTPserver, \
                                    &g_sAppData.ulDestinationIP);
    
    if( lRetVal >= 0)
    {
    
        struct SlTimeval_t timeVal;
        timeVal.tv_sec =  SERVER_RESPONSE_TIMEOUT;    // Seconds
        timeVal.tv_usec = 0;     // Microseconds. 10000 microseconds resolution
        lRetVal = sl_SetSockOpt(g_sAppData.iSockID,SL_SOL_SOCKET,SL_SO_RCVTIMEO,\
                        (unsigned char*)&timeVal, sizeof(timeVal)); 
        if(lRetVal < 0)
        {
           ERR_PRINT(lRetVal);
           LOOP_FOREVER();
        }
        
        while(1)
        {
            //
            // Get the NTP time and display the time
            //
            lRetVal = GetSNTPTime(GMT_DIFF_TIME_HRS, GMT_DIFF_TIME_MINS);
            if(lRetVal < 0)
            {
                UART_PRINT("Server Get Time failed\n\r");
                break;                
            }

            //
            // Wait a while before resuming
            //
            MAP_UtilsDelay(SLEEP_TIME);
        }
    }
    else
    {
        UART_PRINT("DNS lookup failed. \n\r");
    }

    //
    // Close the socket
    //
    close(iSocketDesc);
    UART_PRINT("Socket closed\n\r");

end:
    //
    // Stop the driver
    //
    lRetVal = Network_IF_DeInitDriver();
    if(lRetVal < 0)
    {
       UART_PRINT("Failed to stop SimpleLink Device\n\r");
       LOOP_FOREVER();
    }

    //
    // Switch Off RED & Green LEDs to indicate that Device is
    // disconnected from AP and Simplelink is shutdown
    //
    GPIO_IF_LedOff(MCU_IP_ALLOC_IND);
    GPIO_IF_LedOff(MCU_GREEN_LED_GPIO);

    UART_PRINT("GET_TIME: Test Complete\n\r");

    //
    // Loop here
    //
    LOOP_FOREVER();
}