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CC1352P: device loses network

Aleksey Krauchanka
Prodigy 70 points
Part Number: CC1352P


Hello, there was such a problem: there is a СС1352P-4 with the installed firmware from the TI tempsensor openthread examples. There is also a border router with the latest software version from the open-thread repository. СС1352P-4 enters the network, everything works, but after 1-2 days the device disconnects from the network itself. I see only this in the logs:

May 26 02:57:59 ubuntu otbr-agent[1473]: 1d.03:44:53.134 [I] Mle-----------: Child timeout expired
May 26 02:57:59 ubuntu otbr-agent[1473]: 1d.03:44:53.135 [I] Settings------: Read ChildInfo {rloc:0x8001, extaddr:7a49fa192c4b2157, timeout:240, mode:0x0d, version:3}
May 26 02:57:59 ubuntu otbr-agent[1473]: 1d.03:44:53.143 [I] Settings------: Removed ChildInfo {rloc:0x8001, extaddr:7a49fa192c4b2157, timeout:240, mode:0x0d, version:3}
May 26 02:57:59 ubuntu otbr-agent[1473]: 1d.03:44:53.144 [I] Notifier------: StateChanged (0x00000800) [Child-]
May 26 02:57:59 ubuntu otbr-agent[1473]: 1d.03:44:53.144 [I] ChildSupervsn-: Stopping Child Supervision
May 26 17:19:36 ubuntu otbr-agent[1473]: 1d.18:06:30.879 [I] Mle-----------: Receive Child Update Request from child (fe80:0:0:0:7849:fa19:2c4b:2157)
May 26 17:19:36 ubuntu otbr-agent[1473]: 1d.18:06:30.879 [I] Mle-----------: Send Child Update Response to child (fe80:0:0:0:7849:fa19:2c4b:2157)

. Maybe there are some suggestions that this can be done?

  • 0
    TI__Mastermind 35070 points

    Hi,

    It seems like the border router has not received any packets from the child (tempsensor), and is freeing up space in its child table.

    What logs do you see on the tempsensor?

    Depending on what your network looks like, it could be the case that tempsensor has joined some other Thread router.

    What does your network look like? How many routers and how many end devices?

    Thanks,
    Toby

  • 0 in reply to Toby
    Prodigy 70 points

    Thank you for your time. The network has one router and only one device. I am just starting my journey with development for microcontrollers and specifically with openthread. The tempsensor source code is completely unchanged from the SDK TI examples. Stably works 1-2 two days without any problems. Unfortunately, I don't know how to view the logs on the temp sensor itself.