CC1352P7: WiSUN pySpinel and Wifantund features

Eduardo Viel

Part Number: CC1352P7

Tool/software:

Hi team,

I am a little familiar to pySpinel with WiSUN network but I might need to change to Wifantund because I need a Linux host working as gateway without needing an user to type commands etc.

In this scenario, I know that spinel has some commands available so I can manage network and get a lot of info. Does Wifantund have same available commands? What are the differences between these two interfaces?

Best regards,
Eduardo.

3 months ago

+1 Marie H 3 months ago

TI__Guru* 79041 points

Hi Eduardo,

The commands going between the host and the embedded device are the same. For wisunfantund you can find the documentation here:

https://github.com/TexasInstruments/ti-wisunfantund/blob/release/ti_wisun_commands.md

Cheers,

Marie H

0 Marie H 3 months ago in reply to Marie H

TI__Guru* 79041 points

The main differenceis that pyspinel uses python, while wfantund uses C++ (in a Linux context). We also have an example of OAD only through wisunfantund.

Cheers,

Marie H

0 Eduardo Viel 2 months ago in reply to Marie H

Intellectual 448 points

Thank you, Marie!

Also, if I am using wfantund where is the code that I need to modify if I want to be able to send messages from nodes to border router?

The training section (https://dev.ti.com/tirex4-desktop/content/cc13xx_cc26xx_simplelink_academy_7_41_00_00/_build_cc13xx_cc26xx_simplelink_academy_7_41_00_00/source/ti_wisunfan/wisun_coap/wisun_coap.html) mentions what I need to change when using pyspinel, where can I find the modifications when using wfantund?

Thank you.

Regards,
Eduardo.

0 Marie H 2 months ago in reply to Eduardo Viel

TI__Guru* 79041 points

Hi Eduardo,

The coap node example modifications should be the same, whether you're using pyspinel or wisunfantund. For the BR please see the coap client scripts documentation:

https://github.com/TexasInstruments/ti-wisunfantund/blob/release/coap-client-scripts/README.md

Cheers,

Marie H

0 Eduardo Viel 2 months ago in reply to Marie H

Intellectual 448 points

Hi Marie,

Based on the coap client scripts I could see that it uses libcoap2-bin to work.

But to perform such thing I need to execute the python script to run it. What I need is a coap server that can receive and parse at any moment messages from the devices connected to the network. In this case I don't think I could write an script like the examples mentioned, could you please tell me how to implement this feature?

Regards,
Eduardo.

0 Marie H 2 months ago in reply to Eduardo Viel

TI__Guru* 79041 points

Hi Eduardo,

Do you mean that you want to implement a full Coap server?

Cheers,

Marie H

0 Theo Lange 2 months ago in reply to Marie H

TI__Expert 5365 points

Hi Eduardo,

if you use the latest version of wfantund (07) then you can assign the host and the border router different IP addresses (command: IPv6:WfantundGlobalAddress, explanation in the wfantund readme). Using this feature you can send IP packets from host to border router, host to embedded node or host to host given that you know their IP address. This is possible because the IP traffic is forwarded to the host from the border router through the wfantund interface.

To use now CoAP you can follow the CoAP client scripts that show how a put or get (as in the SimpleLink academy) is performed with wfantund. https://github.com/TexasInstruments/ti-wisunfantund/tree/release/coap-client-scripts

Please let me know if you have following questions.

Kind regards,
Theo

0 Eduardo Viel 2 months ago in reply to Theo Lange

Intellectual 448 points

Hi Marie and Theo!

Yes, I want to implement a full CoAP server.

I thought that I would need to modify some stuff in the wfantund codes given, but actually just using a Python script running a CoAP server is running fine.

Thank you both for the support!

Regards,
Eduardo.

0 Theo Lange 2 months ago in reply to Eduardo Viel

TI__Expert 5365 points

Hi Eduardo,

great that you got the implementation running.

Please let us know if there are more open questions.

Kind regards,
Theo

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CC1352P7: WiSUN pySpinel and Wifantund features