How could we set ZED to leave the network and rejoin again？

The Seven

Guru 11440 points

Other Parts Discussed in Thread: Z-STACK

Hi all。

there are two devices ZED and ZC。

some time ZC will send Send a Management Leave request to ZED.

The ZED need to leave the network and going to rejoin again , and it was set hold auto start。

1. i regsiter Mgmt_Leave_req in APP init function.

  // Register with the ZDO to receive Mgmt_Leave_req
  ZDO_RegisterForZDOMsg(zclConnectSwitch_TaskID, Mgmt_Leave_req);

2. I add the case in zclConnectSwitch_ProcessZDOMsgs（）

static void zclTest_ProcessZDOMsgs( zdoIncomingMsg_t *pMsg )
{

  ZStatus_t status = ZSuccess;
  
   switch (pMsg->clusterID)
  {

   case Mgmt_Leave_req:
      RemoteLeaveReq = TRUE;
      zclTest_BasicResetCB();
      ZDP_MgmtLeaveRsp( pMsg->TransSeq, &pMsg->srcAddr,status, pMsg->SecurityUse );
     break;
     
   default:
     break;
  }
}

3. i do the reset in zclTest_BasicResetCB();

void zclTest_BasicResetCB（）
{
   zgWriteStartupOptions( ZG_STARTUP_SET, ZCD_STARTOPT_DEFAULT_NETWORK_STATE | ZCD_STARTOPT_DEFAULT_CONFIG_STATE );  
   
   NLME_LeaveReq_t leaveReq;
   osal_memset( &leaveReq, 0, sizeof( NLME_LeaveReq_t ) );

   if(RemoteLeaveReq == TRUE)
   {
     leaveReq.rejoin = TRUE;
   }
   else
   {  //local key long press  do not rejoin again
     leaveReq.rejoin = FALSE; 
   }

      if(RemoteLeaveReq == TRUE)
      {
        RemoteLeaveReq = FALSE;
        ZDOInitDevice( 0 );
      }
      else
      {
        MT_SysCommandProcessing( aProcessCmd );
      }

}

but when it receive the remote leave request， it could not restart to search the new network

and it just always rejoin the previous network although it was stop permit join ！

over 9 years ago

0 YiKai Chen over 9 years ago

Guru 735625 points

You should use the following code to do reset device.

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

// The device has been in the UNAUTH state, so reset
// Note: there will be no return from this call
SystemResetSoft();

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

thanks yikai

so there is no need to add NLME_LeaveReq( NLME_LeaveReq_t* req )?

BR!

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

It depends on your application. You can do it to notify device's parent node.

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

when ZED receive the ZDP_MgmtLeaveReq（）， there is will be a ZDP_MgmtLeaveRsp（）；

if NLME_LeaveReq( NLME_LeaveReq_t* req ) is just add for notify his parent node，

what is the different between ZDP_MgmtLeaveRsp（） and NLME_LeaveReq( NLME_LeaveReq_t* req )？

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

If your device receives ZDP_MgmtLeaveReq, device would response with ZDP_MgmtLeaveRsp which is done by Z-Stack automatically and device won't need to send NLME_LeaveReq in this case.

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

so is that mean those two function was depend on whether the leave motion is passive or active？

if the ZED leave the network was cause by long press of the local key ， maybe i should choose to to use NLME_LeaveReq。

or if the leave motion was caused by remote Cmd ( ZDP_MgmtLeaveReq ) ,Maybe ZDP_MgmtLeaveRsp is the best choose？

BR!

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

Yes, that's correct.

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

Hi yikai

i have do a test of the Management Leave request Cmd。

when ZED receive the Management Leave request Cmd it will do the below step

{

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

        // The device has been in the UNAUTH state, so reset
        // Note: there will be no return from this call
        SystemResetSoft();

}

but the ZED could not start to research (sending beacon request ) again.

ZC management leave request cmd is just like below :

the ZED enable HOLD AUTO START , is that matter with the device could not researching network ?

or is that relate with the Rejoin parameter of Management Leave Request cmd ？（But i have set it TRUE）

BR!

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

Yes, I think it is because of HOLD_AUTO_START. You should disable it.

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

OK， thank you for answer！

So the Rejoin parameter of Management Leave Request cmd is not make any sense for ZED。

anyway what is ZDApp_LeaveReset( );

should we use it while the ZED doing the leave motion？

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

If you disable HOLD_AUTO_START, the device would do rejoin or not according to Rejoin parameter of Management Leave Request. ZDApp_LeaveReset is used for setuping a device reset due to a leave indication/confirm.

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

yeah ， but the HOLD_AUTO_START is the Compile Options。and we want the device start to search the network after key press。
so i think that is OK.

But i try to find out the different of ZDApp_LeaveReset （）， but it seems nothing happen whether i add it in the leave process or not .

So i am curious about what is the meaning of “reset due to a leave indication/confirm”

BR!

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

If you send a management leave request to device and device receives it, ZDApp_LeaveReset should be called. You can set a breakpoint in ZDApp_LeaveReset to verify this.

0 The Seven over 9 years ago in reply to YiKai Chen

Guru 11440 points

should be called？

so it mean the zstack will auto call it，no matter i have not call it in the APP code。

0 YiKai Chen over 9 years ago in reply to The Seven

Guru 735625 points

Yes, ZDApp_LeaveReset would be called by ZDO_LeaveInd or ZDO_LeaveCnf in Z-Stack.

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How could we set ZED to leave the network and rejoin again？