CC2650EM-5XD-RD: coordinator sending leave request to end device ?

Dhanraj

Part Number: CC2650EM-5XD-RD
Other Parts Discussed in Thread: CC2650, Z-STACK

Hello,

I am using cc2650_5x5 custom board as ZED and cc2538-cc2592 emk as coordinator(znp) with raspberry pi.there is no ZR in the network.

why my ZC is sending leave request to ZED?

please refer packet no . 316899 ,316923 ,316945 in attached sniffer log

zc send leave request.rar

over 7 years ago

0 YiKai Chen over 7 years ago

Guru 735625 points

Which packet number in your sniffer log do you see leave request?

0 Dhanraj over 7 years ago in reply to YiKai Chen

Guru 14820 points

please refer packet no . 316899 ,316923 ,316945

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735625 points

Does device 0x186c join correctly into coordinator? Which packet number I can check it joined correctly?

0 Dhanraj over 7 years ago in reply to YiKai Chen

Guru 14820 points

if you check the packet no. 314350 zed (0x186C) it was in the network and also sending report command.
till packet no. 314379 it was also sending mac frames.
then at packet no 314650 to 314667 it tried rejoining automatically .
and after some time at packet no- 316899,316923,316945 ZC sends leave request.

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735625 points

I don't see device 0x186c does rejoin in packet no 314650 to 314667. I see coordinator sends node descriptor and simple descriptor requests in packet no 314650 to 314667. Since your device 0x186c is not polling, it cannot get any ACK. What is polling rate of your ZED and what Z-Stack version do you use on cc2538-cc2592 emk as coordinator(znp) ?

0 Dhanraj over 7 years ago in reply to YiKai Chen

Guru 14820 points

WHERE is polling rate of ZED defined in z-stack 1.2.32a for cc2650?
I am using z-stack 3.0 in cc2538-cc2592 emk znp

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735625 points

Polling rate is defined in f8wconfig.cfg. I see your CC2650ZED doesn't do polling in your sniffer log. Since you use Z-Stack 3.0 coordinator, it will age out the device which doesn't polling for a long time. When the aged out device tries to send message to coordinator, the device won't be on association list and coordinator will ask device to leave to do rejoin.

0 Dhanraj over 7 years ago in reply to YiKai Chen

Guru 14820 points

-DREJOIN_POLL_RATE=440

-DMAX_POLL_FAILURE_RETRIES=2

-DAPSC_ACK_WAIT_DURATION_POLLED=3000

so these are the values defined in f8wconfig.cfg.

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735625 points

POLL rate is defined by

/* The number of milliseconds to wait between data request polls to the coordinator. */
-DPOLL_RATE=1000

0 Dhanraj over 7 years ago in reply to YiKai Chen

Guru 14820 points

should i modify it?

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735625 points

The default polling rate is 1000 ms but I don't see your device 0x186c does polling every 1000 ms.

0 Dhanraj over 7 years ago in reply to YiKai Chen

Guru 14820 points

ZED 0x186c is deployed away from the sniffer therefore sniffer is not capturing these packets.is that possible?

0 YiKai Chen over 7 years ago in reply to Dhanraj

Guru 735625 points

What do you mean is that possible?

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CC2650EM-5XD-RD: coordinator sending leave request to end device ?