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CC1310: Collector/Sensor Joining network with security enable.

An Bui1
Prodigy 30 points
Part Number: CC1310

Our project is based off LAUNCHXL-CC1310. 

1.  When both collector and sensor are flashed, the sensor is able to join the network and sends data on it's poll interval.
2.  After the sensor sends it's data, we erase and re-flash the same sensor binary
3.  We can see the PA an PC, and 6 attempts to rejoin the network, but all were unsuccessful and sensor data is never sent or received by the collector. ( We ran multiple test on different boards and the rejoin is unsuccessful 80% of the time.

Note:
If we perform #1 and ONLY cycle power on the sensor, the sensor rejoins every time.

We recompile the code with `#define CONFIG_SECURE  false` and performed the same test.  It rejoins and sends data every time.


  • 0
    Guru 735455 points

    If you re-flash sensor binary (even it's the same), it's recommended to join sensor again from scratch.

  • 0 in reply to YiKai Chen
    Prodigy 30 points

    Yes, the sensor is trying to rejoin the network.  It performs the PA, PC, and Association successful/unsuccessful attempts.

    What we are trying to understand is the why is the setup with encryption is 80% unsuccessful.

    Step 1-3 is performed with encryption. Rejoin fails 80%.

    Step 1-3 is performed with no encryption.  Rejoin is 100% successful.

    These are the same code for both the collector and sensor.  Only the #define CONFIG_SECURE is changed.

  • 0
    TI__Guru 73541 points

    Hi,

    Please keep the flash in the same state on the sensor and collector. I.e. when you erase and re-flash the sensor, please do the same on the collector.

  • 0 in reply to Marie H
    Prodigy 30 points

    Yes, I noted that in step 1. 
    We are trying to get clarification/understanding of why the security builds behave differently with respect to the reflash/rejoining.

    We are need a deeper explanation of the mechanics involved with the security enable than what was provide in the TI 15.4-Stack Software Developers Guide.