How to prevent nRF52832 device to enter sleep mode?

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Tue, 09 Aug 2022 09:17:19 GMT

Thanks for your reply!

RE: How to prevent nRF52832 device to enter sleep mode?

Jared — Tue, 09 Aug 2022 09:15:10 GMT

Hi,

Are you able to find the device advertising if you remove the filter?

[quote user="snowuyl"]I have removed calling _sleepModeEnter() and calling advertisingStart() when _advertisingEvtHandler() handles BLE_ADV_EVT_IDLE event. Do you think it is good idea?[/quote]

Yes, this is fine. The advertising module will go to IDLE state after it has iterated through all the enabled advertising states and no connection requests has been received. Restarting advertising when it has reached the IDLE state is ok.

Are you using a custom board or the development kit?

regards

Jared

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Tue, 09 Aug 2022 06:48:43 GMT

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Tue, 09 Aug 2022 06:48:06 GMT

I have removed calling _sleepModeEnter() and calling advertisingStart() when _advertisingEvtHandler() handles BLE_ADV_EVT_IDLE event. Do you think it is good idea?

00> <info> app: POWER_ON.
00>
00> <info> app: External devices initializing start
00>
00> <info> app: BLE_ADV_EVT_FAST
00>
00> <info> app: External devices initializing finish
00>
00> <info> app: bsp_button_longkey_handler 1.
00>
00> <info> app: BLE_ADV_EVT_IDLE
00>
00> <info> app: BLE_ADV_EVT_FAST
00>
00> <info> app: BLE_ADV_EVT_IDLE
00>
00> <info> app: BLE_ADV_EVT_FAST
00>
00> <info> app: BLE_ADV_EVT_IDLE
00>
00> <info> app: BLE_ADV_EVT_FAST
00>
00> <info> app: BLE_ADV_EVT_IDLE
00>
00> <info> app: BLE_ADV_EVT_FAST
00>
00> <info> app: BLE_ADV_EVT_IDLE
00>
00> <info> app: BLE_ADV_EVT_FAST

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Tue, 09 Aug 2022 01:46:07 GMT

devzone.nordicsemi.com/.../5381.advertising.c

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Tue, 09 Aug 2022 01:40:42 GMT

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Tue, 09 Aug 2022 01:39:57 GMT

Thanks for your suggestion! I have removed calling _sleepModeEnter(). But nRF Connect still can't scan BLE device "ANCS2" after _advertisingEvtHandler() handles BLE_ADV_EVT_IDLE event.

The following is log messages of nRF52832 device:
00> <info> app: POWER_ON.
00> <info> app: BLE_ADV_EVT_FAST
00> <info> app: BLE_ADV_EVT_IDLE

RE: How to prevent nRF52832 device to enter sleep mode?

Jared — Mon, 08 Aug 2022 12:04:38 GMT

Hi,

In BLE_ADV_EVT_IDLE you call sd_system_off() by _sleepModeEnter(). The program will enter BLE_ADV_EVT_IDLE after advertising has ended. If you want to avoid the program going to system off sleep then remove the function call from the BLE_ADV_EVT_IDLE event.

regards

Jared

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Mon, 08 Aug 2022 09:31:17 GMT

devzone.nordicsemi.com/.../8371.advertising.c

RE: How to prevent nRF52832 device to enter sleep mode?

snowuyl — Mon, 08 Aug 2022 09:30:52 GMT

I am using nRF5 SDK v16.0.0.

RE: How to prevent nRF52832 device to enter sleep mode?

Jared — Mon, 08 Aug 2022 09:06:57 GMT

Hi,

Are you using nRF Connect SDK or nRF5SDK?

Can you share your code?

regards

Jared