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CC1314R10: Wi-SUN sending interval messages from node to router

Darren T
Prodigy 20 points
Part Number: CC1314R10

Tool/software:

Hello,

I wrote a function in  \simplelink_cc13xx_cc26xx_sdk_7_41_00_17\examples\rtos\LP_EM_CC1314R10\ti_wisunfan\ns_coap_node to send a coAP message every 30 seconds from a border node to the border router. However, I noticed that the router is only receiving these messages once the function completes instead of in increments similar to that of the request. I am not sure why this behavior is happening and how to work around it? I am guessing it is being buffered somewhere, but I am not sure where to look. 

Thanks

  • 0
    TI__Guru* 86111 points

    Hi Darren

    Can you please provide me with some info regarding the project you are working on? Is this for a studen project/assignment?

    BR

    Siri

  • 0 in reply to Siri
    Prodigy 20 points

    Hello,

    This is a personal project I am working on where so far,  I want to be able to simulate end nodes sending data to the router node. Similar to an IoT system where the router doesn't necessarily send request messages to each node, rather the nodes just send the router some asynchronous data every 20/30 seconds. I am having some trouble implementing this as described above, referring to the time at which the router gets these messages. For the node, I wrote a function with a simple for loop and a delay inside which sends the messages, but noticed on the router side it receives the messages only after the function exits, not while the loop is running. My guess is that on either the receiving or sending end these messages are buffered somewhere and is flushed once the function ends, but am not entirely sure if that's the case and/or how to get around it?

    Thanks again,

    Darren

  • 0 in reply to Darren T
    TI__Guru* 86111 points

    Thanks for the info Darren.

    right now we do not have any resources to look into this due to vacation time, so it might be a week or two before we will be able to give you an answer. 

    sorry for the inconvenience

    Siri

  • 0 in reply to Darren T
    TI__Guru* 81531 points

    Hi Darren,

    1. Which SimpleLink F2 SDK version are you using?

    2. Is the BR and the RN connected directly, or are there hops between?

    3. Can you provide a sniffer log of this happening? Then we can see how the message is going over the air.

    https://dev.ti.com/tirex/explore/content/simplelink_cc13xx_cc26xx_sdk_7_41_00_17/docs/ti_wisunfan/html/wisun-guide/debugging-index.html#packet-sniffer

    Cheers,

    Marie H