Openthread sleepy Child re-attach process

RE: Openthread sleepy Child re-attach process

Edward_Atam — Fri, 28 Jun 2019 07:12:47 GMT

Thank you for your replies!!!

I rebuilt the number of commit that you told me and worked well.

Best regards.

RE: Openthread sleepy Child re-attach process

Edward_Atam — Fri, 21 Jun 2019 06:50:24 GMT

Thank you very much for the information

I will try to build this commit and I will post my the result!

RE: Openthread sleepy Child re-attach process

AndreasF — Fri, 21 Jun 2019 06:45:30 GMT

Hi again.

Sorry for the late reply.

Yes, you have to clone that specific commit i posted in my last reply.

You see, OpenThread is an open-source implementation of the Thread Protocol, that means that anyone can propose modifications to the implementation. So, we release the SDK with a stable commit and a precompiled library that we test thoroughly.

If you try to build your own library with another commit you have a very high chance of getting into trouble.

Best regards,

Andreas

RE: Openthread sleepy Child re-attach process

Edward_Atam — Wed, 19 Jun 2019 14:54:02 GMT

Hi,

I cloned the last commit, I did today.

what commit I have to download? Have I to clone a older commit?

Did I follow the right steps? I don't know if iI have to clean some folder before to rebuild.

thanks

RE: Openthread sleepy Child re-attach process

AndreasF — Wed, 19 Jun 2019 13:19:37 GMT

Hi.

Which commit did you build the libraries with?

Did you use this:

github.com/.../2279ef610eef80597bd789611d6931b95e08bf48

If you try to use master you might have problems compiling since the SDK is built upon the commit above, not on the master branch.

Best regards,

Andreas

RE: Openthread sleepy Child re-attach process

Edward_Atam — Wed, 19 Jun 2019 09:25:09 GMT

Hi Andreas,

I followed your advise and I downloaded the new SDK, and I did the next steps.Everything was fine but step 5. When I tried to complie the example "simple thread client" I got an error .Please see the screeen shot at the step 5 bellow.

Step 1:

clone https://github.com/openthread/openthread

Step 2:

Copy the openThread master folder to this location in the SDK: (Thread and Zigbee SDK v3\external\openthread\project)

Step 3:

py -3 build_gcc_libs.py

Step 4:

py -3 import_libs.py gcc

Step 5:

C:\Nordic\nRF5_SDK_for_Thread_and_Zigbee_v3.1.0\examples\thread\simple_coap_client\pca10056\blank\armgcc>make

What I did wrong??

Thanks in advance.

Edward.

RE: Openthread sleepy Child re-attach process

AndreasF — Thu, 13 Jun 2019 05:36:55 GMT

Hi again.

If you are talking about the first thing I commented on, then it will have a influence in the certification because this window is determind by the specification and should be such value as it already is.

The second longer window can be changed as you like without any issues for the certification.

[quote user="Edward_Atam"]Also, I would like to ask about how to rebuild the OpenThread project:[/quote]

Yes, it was a bug in the last release that these scripts were missing. There was a bug related release the other day of the SDK, version 3.1.0 you can download. The script is in this release, it is a Python script.

In the external\openthread\project folder.

Best regards,

Andreas

RE: Openthread sleepy Child re-attach process

Edward_Atam — Wed, 12 Jun 2019 12:00:22 GMT

Thank you for your reply.

My devices will not connecto to any third party Thread devices. Having this in mind, I guess that reducing the RX-window time to about 1 second will not have any influence in the certification. Do you think this make sense? Also, do you think that reducing this window will highly decrease the performance of the devices?

Also, I would like to ask about how to rebuild the OpenThread project:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.thread_zigbee.v2.0.0%2Fthread_intro.html&cp=4_2_0_1_0_5&anchor=thread_qsg_libraries

It is for SDK 2.0 and I assume it doesn't work for SDK 3.0 because there are not scripts .bat in the folder /openthread/project/

Is there any guide for this SDK? Can you help me?

RE: Openthread sleepy Child re-attach process

AndreasF — Wed, 12 Jun 2019 07:29:18 GMT

Hi.

First:

It is against the specification changing the RX window time for the Parent Response. If you do this you might not get your device certified. You can do it for experimental reasons if you like by chaning two variables:

ttps://github.com/openthread/openthread/blob/master/src/core/thread/mle_constants.hpp#L69
https://github.com/openthread/openthread/blob/master/src/core/thread/mle_constants.hpp#L70

Second:

This can be changed as you like by modifying OPENTHREAD_CONFIG_ENABLE_ATTACH_BACKOFF, just remember to enable it. Modifying this should not be against the spec.

Best regards,

Andreas