Sleep mode nrf52 DK

RE: Sleep mode nrf52 DK

Karl Ylvisaker — Wed, 26 Jan 2022 11:01:45 GMT

No problem at all, I am happy to help!

Please do not hesitate to open another ticket if you should encounter any other issues or questions in the future.

Good luck with your development!

Best regards,
Karl

RE: Sleep mode nrf52 DK

lm — Wed, 26 Jan 2022 09:56:30 GMT

Thank you so much.

RE: Sleep mode nrf52 DK

Karl Ylvisaker — Wed, 26 Jan 2022 09:19:49 GMT

It seems that you are encountering a fatal error.
Please make sure to have DEBUG defined in your preprocessor defines, like shown in the included image:

This will make your logger output a detailed error message whenever a non-NRF_SUCCESS error code is passed to an APP_ERROR_CHECK.
You may then check the returned error code against the API Reference documentation for the function that returned the error, to see what went wrong and how to fix it.

Best regards,
Karl

RE: Sleep mode nrf52 DK

lm — Wed, 26 Jan 2022 07:44:19 GMT

RE: Sleep mode nrf52 DK

lm — Wed, 26 Jan 2022 07:41:17 GMT

Hello, i just tested things. I have to see the app to send at first the blinky program "activate" or to take off the sleep mode I think, then I send the peripheral uart program that I want and I can see my Module in my app and I don't why i have this problem.

RE: Sleep mode nrf52 DK

Karl Ylvisaker — Tue, 25 Jan 2022 14:58:09 GMT

[quote user="linamarcos"]I saw the app when I'm pressing after sending the program that I wanted in the button reset. [/quote]

I am sorry but I do not understand what you mean to tell me here, could you rewrite this explanation?

[quote user="linamarcos"]When I'm making build and run I can't see the program but when I do build and debug and play execution, I see the device in the app constantly without sleep mode[/quote]

Ok, could you show me your logger output of both situations?
I am especially interested in seeing the logs for the scenario in which you program the device and do not see any advertising happening.

Best regards,
Karl

RE: Sleep mode nrf52 DK

lm — Tue, 25 Jan 2022 13:18:38 GMT

Hello again,

I saw the app when I'm pressing after sending the program that I wanted in the button reset.

When I'm making build and run I can't see the program but when I do build and debug and play execution, I see the device in the app constantly without sleep mode

RE: Sleep mode nrf52 DK

Karl Ylvisaker — Tue, 25 Jan 2022 12:49:50 GMT

[quote user="linamarcos"]

but i can't see my app if don't press the button reset, I would to know how to not have this obligation ( 0 on the app duration is working only if I'm pressing the button reset too)

and the problem is that this is a big constraint. I would like to see my app constantly.

[/quote]

That likely means that the application is not running as expected. Could you elaborate on what you mean when you say that the 0 on the app duration is working only if I'm pressing the button reset? - Do you see unlimited advertising after a reset, only?
Could you enter into a debug session and see if the program counter is getting stuck anywhere unexpected?
Could you also confirm for me that you have made sure to pass all returned error codes to an APP_ERROR_CHECK?

If you make sure to have DEBUG defined in your preprocessor defines, like shown in the included image, your debugger will output a detailed error message whenever a non-NRF_SUCCESS error code is passed to an APP_ERROR_CHECK.
Please do this, and let me know if you see any such error message appear in your logger when you run the modified application.

Bet regards,
Karl

RE: Sleep mode nrf52 DK

lm — Tue, 25 Jan 2022 08:44:38 GMT

Hello, i changed the line in the flag

but i can't see my app if don't press the button reset, I would to know how to not have this obligation ( 0 on the app duration is working only if I'm pressing the button reset too)

and the problem is that this is a big constraint. I would like to see my app constantly.

Thank you in advance for your help :)

RE: Sleep mode nrf52 DK

Karl Ylvisaker — Mon, 24 Jan 2022 17:35:27 GMT

[quote user="linamarcos"]thank you so much for your quick reply.[/quote]

No problem at all, I am happy to help!

[quote user="linamarcos"]Actually, I don't see the program in the app anymore when I put the duration to 0.[/quote]

Thank you for clarifying - this could indeed mean that the program is encountering an error or otherwise non-functioning.

[quote user="linamarcos"]When you are talking about the flag where can I change that?[/quote]

You will need to change the flags that are part of the advertising payload, they are defined in line 617 of main.c of the unmodified BLE NUS example:

init.advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;

It should instead be BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE.

Best regards,
Karl

RE: Sleep mode nrf52 DK

lm — Mon, 24 Jan 2022 15:15:07 GMT

Hello Karl, thank you so much for your quick reply. Actually, I don't see the program in the app anymore when I put the duration to 0. When you are talking about the flag where can I change that? Thank you it is maybe wh it isn't working

RE: Sleep mode nrf52 DK

Karl Ylvisaker — Mon, 24 Jan 2022 15:01:02 GMT

Hello,

You are correct that the default behavior of the BLE NUS example is to go into SYSTEM_OFF sleep when the advertising duration is expired. You could see this happen in the advertising's event handler for the IDLE event.

[quote user=""]I'm using my app I would like to see my example constantly in my nrf correct and to make it appear I have to click on the reset button.[/quote]

If you would like to keep the device advertising for an indefinite time you will need to change the advertising duration to unlimited by setting the APP_ADV_DURATION to 0. You will also need to change which flag your device is advertising with from the default limited discoverability to general discoverability.

[quote user=""]APP_DURATION from 18000 to 0 but it doesn't work.[/quote]

Please elaborate on how it does not work. What are you observing and how does it diverge from what you would have expected? Does the application suddenly reset, or does it advertise for a certain time before going to SYSTEM_OFF sleep regardless of your APP_ADV_DURATION being set to 0?

Best regards,
Karl