CC2650EMK: coordinator is sending leave request to end device after joining.

Dhanraj

Guru 14820 points

Part Number: CC2650EMK
Other Parts Discussed in Thread: Z-STACK

Hello,

I have cc2538-cc2592 emk as coordinator(z-stack 3.0) and cc2650emk as end device (z-stack 1.2.2a).

End device joins the network but the coordinator removes the end after joining.what can be the issue.

please find attached sniffer log.end device leave.rar

over 8 years ago

0 JasonB over 8 years ago

TI__Expert 8950 points

You must allow legacy devices to join your Zigbee 3.0 network, they are being rejected because of the new Zigbee 3.0 security scheme. You can allow legacy devices to join by setting BDB_DEFAULT_TC_REQUIRE_KEY_EXCHANGE to FALSE in bdb_interface.h

You can read more about the changes in Zigbee 3.0 here:

http://processors.wiki.ti.com/index.php/What%27s_New_in_ZigBee_3.0

0 Dhanraj over 8 years ago

Guru 14820 points

I found the below mentioned post helpful

https://e2e.ti.com/support/wireless_connectivity/zigbee_6lowpan_802-15-4_mac/f/158/t/578476?tisearch=e2e-sitesearch&keymatch=leave%20request#pi319568=2

https://e2e.ti.com/support/wireless_connectivity/zigbee_6lowpan_802-15-4_mac/f/158/p/569629/2088695#2088695

after setting BDB_DEFAULT_TC_REQUIRE_KEY_EXCHANGE to FALSE on ZC(z-stack 3.0) ,end device stays in the network but now z-stack 3.0 router is not joining the network.

the router does not sends association request.

previously it was able to join the network.

i have also tried with setting BDB_DEFAULT_TC_REQUIRE_KEY_EXCHANGE to FALSE on ZR(z-stack 3.0) But still it(ZR) does NOT joins network

0 JasonB over 8 years ago in reply to Dhanraj

TI__Expert 8950 points

Can you post a capture?

Do you see the router send a beacon request on the correct channel? Does the coordinator respond with a beacon that shows association permit is TRUE and router capacity is TRUE?

0 Dhanraj over 8 years ago in reply to JasonB

Guru 14820 points

SORRY I have Reported wrong issue,router joins the network if permit join is enabled on ZC.

but i had observed that if permit join is false on ZC and then ZR tries to join the network but it can't join the network(that is desired )
but in this case ZR forms its distributed network and now even if permit join is true on ZC but ZR does not join the network.

0 YiKai Chen over 8 years ago in reply to Dhanraj

Guru 735625 points

I think you have to do factory reset to ZR to make it join to ZC.

0 Dhanraj over 8 years ago in reply to YiKai Chen

Guru 14820 points

which api/function should be called for factory reset ZR in z-stack 3.0

0 YiKai Chen over 8 years ago in reply to Dhanraj

Guru 735625 points

You can use bdb_setFN.

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CC2650EMK: coordinator is sending leave request to end device after joining.