cc2530 znp uart program flow

typedef struct
{
  uint16 nwkAddr;   // Network address
  uint8 endpoint;   // Endpoint identifier
  uint16 profileID; // Profile identifier
  uint16 deviceID;  // Device identifier
  uint8 version;    // Version
} epInfoRec_t;
epInfoRec_t dev_list[10];

void SAPI_ProcessZDOMsgs( zdoIncomingMsg_t *inMsg )
{
    zAddrType_t destAddr;
    uint16 shortAddr;
    uint8 epInt;
    static zAddrType_t addr;
    addr.addrMode = Addr16Bit;
    uint8 dev_cnt;
	.
	.
        case Device_annce:
        {          
          ZDO_DeviceAnnce_t devAnnce;
          ZDO_ParseDeviceAnnce( inMsg, &devAnnce );
          destAddr.addrMode = Addr16Bit;
          destAddr.addr.shortAddr = devAnnce.nwkAddr;
          for(dev_cnt =0;dev_cnt<10;dev_cnt++)  //check whether any device with short address same as devAnnce.nwkAddr is already present or not
          {
            if(destAddr.addr.shortAddr == dev_list[dev_cnt].nwkAddr)
            {
              break;    //break loop if device is already registered
            }
          }
          if( dev_cnt == 10)    //dev_cnt == 10 means device is not registered in the device list,dev_cnt<10 means device already present in list
          {
            for(uint8 i = 0;i < 10;i++)
            {
              if(dev_list[i].endpoint != null)  //check which is the last device registered
              {
                dev_list[i].nwkAddr = devAnnce.nwkAddr;             //register short address of the announced device into device list at location where device is not registered
                ZDP_ActiveEPReq( &destAddr, devAnnce.nwkAddr, 0);   //send active end point request for the new device announced
                break;  //exit further registering of devices
              }
            }                
        }
        break;
      case Active_EP_rsp:
        { 
          ZDO_ActiveEndpointRsp_t *pActiveEPs = NULL;
          pActiveEPs = ZDO_ParseEPListRsp( inMsg );     //get end point response         
          if ( pActiveEPs->status == ZSuccess )
          {
            for (uint8 j=0; j < pActiveEPs->cnt; j++ )
            {
              if(pActiveEPs->nwkAddr == dev_list[j].nwkAddr)    //match the short address of the end point for which end point response has arrived
              {
                dev_list[j].endpoint = pActiveEPs->epList[j];   //store the end point of the responded end point in the device list
                addr.addr.shortAddr = pActiveEPs->nwkAddr;
                addr.addrMode = Addr16Bit; 
                ZDP_SimpleDescReq( &addr, pActiveEPs->nwkAddr, pActiveEPs->epList[i], 0 );   //send simple descriptor request to the responded end device
                break;  //exit from further request
              }
            }
            if ( pActiveEPs != NULL )
            {
              osal_mem_free( pActiveEPs );      //free memory
            }
          }
        }
        break;
      case Simple_Desc_rsp: 
        {
          ZDO_SimpleDescRsp_t simpleDescRsp;
          simpleDescRsp.simpleDesc.pAppInClusterList = simpleDescRsp.simpleDesc.pAppOutClusterList = NULL;        
          ZDO_ParseSimpleDescRsp( inMsg, &simpleDescRsp );
          for (uint8 k=0; k < 10; k++ )
          {
            if((simpleDescRsp.nwkAddr == dev_list[k].nwkAddr) && (simpleDescRsp.simpleDesc.EndPoint == dev_list[k].endpoint))   //match short address and end point of the end device in the dev_list
            {  
            
              dev_list[k].profileID = simpleDescRsp.simpleDesc.AppProfId;       //store end point information in the device list
              dev_list[k].deviceID = simpleDescRsp.simpleDesc.AppDeviceId;
              dev_list[k].version = simpleDescRsp.simpleDesc.AppDevVer;
            }
            break;      //exit further storing
          }
          if ( simpleDescRsp.simpleDesc.pAppInClusterList != NULL )
          {
            osal_mem_free( simpleDescRsp.simpleDesc.pAppInClusterList );
          }
          if ( simpleDescRsp.simpleDesc.pAppOutClusterList != NULL )
          {
            osal_mem_free( simpleDescRsp.simpleDesc.pAppOutClusterList );
          }          
        }               
        break;
  }
}

//This dev_list informations can be used for sending unicast data from coordinator to the end device