if ( keys & HAL_KEY_SW_1 )
    {
	  HalLedSet ( HAL_LED_4, HAL_LED_MODE_OFF );
      
      // Initiate a Match Description Request (Service Discovery)
      txAddr.addrMode = AddrBroadcast;
      txAddr.addr.shortAddr = NWK_BROADCAST_SHORTADDR;
      ZDP_MatchDescReq( &txAddr, NWK_BROADCAST_SHORTADDR,
                        SERIALAPP_PROFID,
                        SERIALAPP_MAX_CLUSTERS, (cId_t *)SerialApp_ClusterList,
                        SERIALAPP_MAX_CLUSTERS, (cId_t *)SerialApp_ClusterList,
                        FALSE );
    }
	
    if ( keys & HAL_KEY_SW_2 )
    {
      HalLedSet ( HAL_LED_4, HAL_LED_MODE_OFF );
      
      // Initiate an End Device Bind Request for the mandatory endpoint
      txAddr.addrMode = Addr16Bit;
      txAddr.addr.shortAddr = 0x0000; // Coordinator
      ZDP_EndDeviceBindReq( &txAddr, NLME_GetShortAddr(), 
                            SerialApp_epDesc.endPoint,
                            SERIALAPP_PROFID,
                            SERIALAPP_MAX_CLUSTERS, (cId_t *)SerialApp_ClusterList,
                            SERIALAPP_MAX_CLUSTERS, (cId_t *)SerialApp_ClusterList,
                            FALSE );
    }

    if ( keys & HAL_KEY_SW_3 )
    {
    }

    if ( keys & HAL_KEY_SW_4 )
    {
/*      HalLedSet ( HAL_LED_4, HAL_LED_MODE_OFF );
      
      // Initiate a Match Description Request (Service Discovery)
      txAddr.addrMode = AddrBroadcast;
      txAddr.addr.shortAddr = NWK_BROADCAST_SHORTADDR;
      ZDP_MatchDescReq( &txAddr, NWK_BROADCAST_SHORTADDR,
                        SERIALAPP_PROFID,
                        SERIALAPP_MAX_CLUSTERS, (cId_t *)SerialApp_ClusterList,
                        SERIALAPP_MAX_CLUSTERS, (cId_t *)SerialApp_ClusterList,
                        FALSE );
*/
    }