SLM and external MCU

RE: SLM and external MCU

Hakon — Tue, 08 Feb 2022 13:12:49 GMT

Here's the response;

"Customer is asking for AT command parser, basically to parse AT responses and notifications.

The only hint from nRF91 side is https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/libraries/modem/at_cmd_parser.html

This is the external AT parser for both command and responses, besides the internal parsing functions in libmodem."

RE: SLM and external MCU

Hakon — Mon, 07 Feb 2022 15:16:59 GMT

No, but I contacted someone else in R&D now, so hopefully there will be some progression very soon.

RE: SLM and external MCU

Vojislav — Mon, 07 Feb 2022 07:38:24 GMT

Hi, any news from R&D?

RE: SLM and external MCU

Vojislav — Mon, 20 Dec 2021 13:23:29 GMT

No problem, but please do let me know when you get an answer.
Thanks!

RE: SLM and external MCU

run_ar — Mon, 20 Dec 2021 13:17:38 GMT

Hi,
Unfortunately I do not think er have these libraries for NCS. To be sure I just pinged R&D for a comment on this, but we might have to wait until next year to hear from the developers as we are rapidly approaching the holidays. Sorry for the inconvenience.

RE: SLM and external MCU

Vojislav — Tue, 07 Dec 2021 13:14:33 GMT

Thank you, I am looking forward to your answer!

RE: SLM and external MCU

Hakon — Fri, 03 Dec 2021 17:52:38 GMT

[quote user="voja"]My idea was to utilize existing libs for easier development.
[/quote]

I see. I have forwarded your request to R&D.

RE: SLM and external MCU

Vojislav — Thu, 02 Dec 2021 13:46:04 GMT

ok understood.
I am using NCS so those examples are not very helpful. I have done the communication part. My idea was to utilize existing libs for easier development.

thanks.
Vojislav.

RE: SLM and external MCU

Hakon — Thu, 02 Dec 2021 13:32:26 GMT

Btw, would this be useful for you?

https://github.com/NordicPlayground/nRF52-clients-for-serial-LTE-modem

RE: SLM and external MCU

Hakon — Thu, 02 Dec 2021 13:12:44 GMT

[quote user="voja"]Why it can not be ported to nrf52 that uses UART bridge for communication?[/quote]

The document you linked to shows how to port to another OS, not another architecture like nrf52. I will check further if there are any plans for example code.

RE: SLM and external MCU

Vojislav — Wed, 24 Nov 2021 09:51:51 GMT

and also if there are porting guides for modem lib https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/nrf_modem/doc/ug_nrf_modem_porting_os.html

Why it can not be ported to nrf52 that uses UART bridge for communication?

Best regards,
Vojislav.

RE: SLM and external MCU

Vojislav — Tue, 23 Nov 2021 14:28:55 GMT

ok, and that AT interface that you have sent can work on external MCU?
functions like:

nrf_modem_at_printf

nrf_modem_at_scanf

and others...

RE: SLM and external MCU

Hakon — Tue, 23 Nov 2021 14:19:19 GMT

Hello,

I'm pretty sure the libraries you mention won't work outside of the nrf9160. I think you need to interface directly with the modem to use the AT interface.

"The AT interface can be used once the application initializes the Modem library in NORMAL_MODE by calling nrf_modem_init()."

I'm not sure if there are any other libraries you can use, but I will let you know if I find some.

RE: SLM and external MCU

Vojislav — Tue, 23 Nov 2021 14:01:48 GMT

So my main question is what is the best way to integrate AT client on external MCU (nRF52 + NCS) and can available modem libraries be used on that client and to what extent?