how to tell ZC when ZED leave network？

You can use ZDP_MgmtLeaveReq to do this.

hi Chen
             do you have seen the below function of zstack

             when  the ZED reset  to factory config， do it send a leave request（NLME_LeaveReq( &leaveReq )）？

             is it same as ZDP_MgmtLeaveReq？

            when i use ZDP_MgmtLeaveReq， does ZED need to wait ZDP_MgmtLeaveRsp  before Reset to factory？

 static void zclsampleXXX_BasicResetCB( void )
{
   NLME_LeaveReq_t leaveReq;
   
   //delete the user item
   osal_nv_delete( ZONE_CIEADDRESS_AND_ENROLL_INFO, NV_CIEADDR_LEN+NV_EXTDATA_LEN);
   
  // Set every field to 0
  osal_memset( &leaveReq, 0, sizeof( NLME_LeaveReq_t ) );
 
  // This will enable the device to rejoin the network after reset.
  leaveReq.rejoin = TRUE;
 
  // Set the NV startup option to force a "new" join. //3
  zgWriteStartupOptions( ZG_STARTUP_SET, ZCD_STARTOPT_DEFAULT_NETWORK_STATE | ZCD_STARTOPT_DEFAULT_CONFIG_STATE );    
 
  // Leave the network, and reset afterwards
  if ( NLME_LeaveReq( &leaveReq ) != ZSuccess )
  {
    // Couldn't send out leave; prepare to reset anyway
    ZDApp_LeaveReset( FALSE );
  }
 
  // restart device
 MT_SysCommandProcessing( aProcessCmd );
 
 
}

hi Chen

           i would like to enrich the question as  below

           the ZED was preform as HA device， and  there is a note as below in HA specific

          is that mean i need to use all of those function （ZDP_MgmtLeaveReq   and   NLME_LeaveReq( &leaveReq ) ）

        Return to Factory Defaults
        In support of a return to factory default capability, HA devices shall implement the ZDO Management Leave server service.

        When invoked with a unicast address and the DeviceAddress set to NULL=0x00000000, the device shall implement a NWK Leave.

        When invoked with a broadcast address and the DeviceAddress set to NULL=0x00000000, the device shall wait the broadcast timeout period to
        allow the message to propagate through network, then the device shall implement a NWK Leave.

       Prior to execution of the NWK Leave in either case, processing in the device shall ensure all operating parameters are reset to allow a reset to factory
       defaults.

The effect of NLME_LeaveReq is similar to ZDP_MgmtLeaveReq. In my experience, I would wait for ZDP_MgmtLeaveRsp for a moment after ZED issues ZDP_MgmtLeaveReq. ZED would do factory reset anyway after a delay.

Hi  Chen

       when i  only involved   ZDP_MgmtLeaveReq(father_dstAddr, NLME_GetExtAddr(), FALSE,TRUE, 1)  in zclXXXX_BasicResetCB  function  of  ZED，

       The ZC will receive a MgmtLeaveReq Msg  in   ZDO_MSG_CB

        when i only involved the NLME_LeaveReq( &leaveReq )  in zclXXXX_BasicResetCB  function  of  ZED，

        The ZC can't  catch anything of Leave request Msg

        and if  i open MT_SysCommandProcessing( aProcessCmd );  no matter i use ZDP_MgmtLeaveReq  or NLME_LeaveReq in ZED

        The ZC can't catch anything， it seems  that ZED have not finish processed  the Leave function  then doing the factory reset....

       static void zclConnectSwitch_BasicResetCB( void )
{
    
  // ZDO Management Leave server service
  zAddrType_t *father_dstAddr =NULL;
  father_dstAddr->addrMode = (afAddrMode_t)(afAddr16Bit);
  father_dstAddr->addr.shortAddr = NLME_GetCoordShortAddr();
  ZDP_MgmtLeaveReq(father_dstAddr, NLME_GetExtAddr(), FALSE,TRUE, 1);

   // Set the NV startup option to force a "new" join.
  zgWriteStartupOptions( ZG_STARTUP_SET, ZCD_STARTOPT_DEFAULT_NETWORK_STATE | ZCD_STARTOPT_DEFAULT_CONFIG_STATE );   

  //NLME_LeaveReq_t leaveReq; 
  // Set every field to 0
  //osal_memset( &leaveReq, 0, sizeof( NLME_LeaveReq_t ) );
  // This will enable the device to rejoin the network after reset.
  //leaveReq.rejoin = TRUE;
  // Leave the network, and reset afterwards
//  if ( NLME_LeaveReq( &leaveReq ) != ZSuccess )
//  {
//    // Couldn't send out leave; prepare to reset anyway
//    ZDApp_LeaveReset( FALSE );
//  }
 
  // restart device
 //MT_SysCommandProcessing( aProcessCmd );
 
 
}

there is nothing received by ZC?   although  i have registered  the Mgmt_Leave_req  ，adding  MT_ZDO_FUNC and MT_ZDO_MGMT in compile option   in the ZC