CC2530: Permitjoin is enabled by default indefinitely on the coordinator

Aviral Gupta

Part Number: CC2530
Other Parts Discussed in Thread: Z-STACK

We have a ZNP coordinator. The permitjoin is enabled on power on. How can i configure to it to be disabled by default?
We need to enable permit join only when required.

over 7 years ago

0 YiKai Chen over 7 years ago

Guru 735695 points

The permit join of ZNP is disable by default. Unless you enable it in your ZAP.

0 Sean M over 7 years ago

TI__Intellectual 2780 points

Can you share a sniffer log of how you know permitjoin is enabled on power on?

The example application provided in the Z-Stack 3.0.x SDK does not enable permitjoin by default, much less indefinitely. The Zigbee spec defines a hard limit of how long you're allowed to keep the network open for, which this follows. In order to open the network you'd have to run APP_CNF_BDB_START_COMMISSIONING (Network Formation) to form your network, then APP_CNF_BDB_START_COMMISSIONING (Network Steering) to actually open and allow devices to join.

Best,
Sean

0 dharam baid over 7 years ago

Prodigy 160 points

You can set duration to zero in this function ZDSecMgrPermitJoining(duration);
if this doesn't help you can set
uint8 x[1];
x[0]=0;
ZMacSetReq( ZMacAssociationPermit, &x[0] );

0 YiKai Chen over 7 years ago in reply to dharam baid

Guru 735695 points

If you are not sure permit join enable or disable by default, you can call "NLME_PermitJoiningRequest(0);" in ZDO_STATE_CHANGE to disable permit join.

0 Aviral Gupta over 7 years ago in reply to YiKai Chen

Expert 1385 points

what do you mean by ZAP? from the host?

0 YiKai Chen over 7 years ago in reply to Aviral Gupta

Guru 735695 points

Yes, ZAP means host.

0 Aviral Gupta over 7 years ago in reply to Sean M

Expert 1385 points

The coordinator allows the router to join the network.
How ever we disable the permit join soon after the network is started.
1) If the node is powered on after disabling it is not allowed to join the network.
2) if the router is on and then i start the coordinator it joins the network before it permit join is disabled

about the hard limit, i am using old stack and duration =0xFF enables permit join indefinetly

0 Aviral Gupta over 7 years ago in reply to YiKai Chen

Expert 1385 points

i am not sure in which location the permit join is set to always enabled.
i tried your suggestion, it did not work.
I guess the permit join is set sometime later
how can i find it?

0 YiKai Chen over 7 years ago in reply to Aviral Gupta

Guru 735695 points

As I mentioned, ZNP permit join is disable by default and you shouldn't see such issue. Can you elaborate which Z-Stack ZNP you are testing?

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CC2530: Permitjoin is enabled by default indefinitely on the coordinator