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CC2652R: CC2652 : Zigbee large network configuration

Ankit Siddhapura
Prodigy 50 points
Part Number: CC2652R
Other Parts Discussed in Thread: SYSCONFIG

Hi,

I have 75 nodes setup with 1 coordinator and other devices are router, Some nodes are gets soft reset after connecting in zigbee network.

If node has joined network successful what could be the scenario of network leave or reset?

can I configure NWK_MAX_DEVICE_LIST to less than 20? I did test by setting NWK_MAX_DEVICE_LIST to 1 for coordinator,  observed that still 2 nodes joined the network. Nodes were kept far apart so 1st node which is direct child of coordinator could not be parent of 2nd node. It seems coordinator still allowed to join 2 devices as direct children device. How can I confirm that coordinator is restriction new devices once its max device list entry is full ?

How does large network configuration works for flash size and ZDSECMGR_TC_DEVICE_MAX?

ZDSECMGR_TC_DEVICE_MAX value set to 20 were not allowing to connect a single node in network when NWK_MAX_DEVICE_LIST value is 5.

NVOCMP_NVPAGES is 4 for large network configuration where ZDSECMGR_TC_DEVICE_MAX is 85 and NWK_MAX_DEVICE_LIST is 12, still facing issue of node soft reset after network join.
These happens for few nodes, 40-45 nodes does not reset.  

Thank you,
Ankit Siddhapura.

  • 0
    TI__Guru**** 219997 points

    Hi Ankit,

    Please refer to SWRA650 and the Non-Volatile Memory Items section of the Z-Stack User's Guide.  SysConfig -> TI Drivers -> NVS -> Internal Flash must increase the Region Base and Size for NVOCMP_NVPAGES = 4.  NWK_MAX_DEVICE_LIST is the number of devices directly associated to the node whereas ZDSECMGR_TC_DEVICE_MAX is the maximum number of Zigbee 3.0 devices which can join the Trust Center.  Please provide your SDK version and a sniffer log of the issue if you continue to observe the behavior after making appropriate changes.

    Regards,
    Ryan

  • 0
    Guru 735695 points

    I guess there are too much Zigbee network traffic to cause joining  device doing leave reset when there are too many routers in a single network. I would suggest you to use sniffer to check what exactly happens.

  • 0
    Prodigy 50 points

    Thank You for quick response !

    Later on I found that, NVS offset value should be change according to NVPAGES increases from 2 to 4. 

    Let me check with updated configuration. It may stops node to reset due to network leave indication.

    Regards,
    Ankit Siddhapura