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CC2652P7: Maximum number of nodes information in NV

Krishna Kumar V
Prodigy 140 points
Part Number: CC2652P7
Other Parts Discussed in Thread: SYSCONFIG, Z-STACK

Hi,

How many zigbee nodes information we can store in NV memory? With default memory map as in TI SDK, I am able to store only 9 node information in NV memory. If I define number of nodes as 10 to store 10 node information in NV memory in ZC application then first node itself joins and leaves the network and starts misbehaviour. Please provide your views on this.

  • +1
    TI__Guru**** 218217 points

    Hi Krishna,

    There is a Non-volatile Memory section of the Z-Stack User's Guide.  This includes information concerning how to increase the NV memory allocation.  It will depend on the changes to the NWK_MAX_DEVICE_LIST and ZDSECMGR_TC_DEVICE_MAX definitions (from SysConfig -> Z-Stack -> Network), alongside others such as NWK_MAX_ADDRESSES.  The behavior you are describing is confusing as up to 20 nodes can be directly associated by default.  Although NV memory can be increased and would be a beneficial test to perform, we  should also determine why the node leaves the network.  Are all node devices and firmware the same, along with being capable of displaying this behavior?  Which Z-Stack examples are you evaluating?  Please provide sniffer logs of the issue if possible.

    Regards,
    Ryan

  • 0 in reply to Ryan Brown1
    Prodigy 140 points

    Hi Ryan Brown1,

    Thank you for useful information. I am able to form network, able to have 40 nodes in the network and able to store 40 node info in NV memory after following "Non-volatile Memory section of the Z-Stack User's Guide". Thanks for the information.