advertising continuous issue with nrf52832

RE: advertising continuous issue with nrf52832

Hung Bui — Thu, 25 Aug 2022 14:15:17 GMT

Hi again,

1. When you call sd_power_system_off() it doesn't matter which way of advertising or what you are doing with your chip, the chip will shutdown and will do nothing except for waiting for waking up from the interrupt.

When it wake up it will reset and booting up.

When you set the timeout to 0 , there will be no timeout.

2. There is a chance that other app on the phone still connect to it. This mean if that happens and you disconnect from the nRF Connect app, the phone will not disconnect. Please try to test connect/disconnect without DFU. Please also try to test DFU with the DFU app in the nRF Toolbox instead of nRF Connect.

RE: advertising continuous issue with nrf52832

sunwell — Thu, 25 Aug 2022 08:35:59 GMT

Thank you for your reply.

1. I've tried to set it as you said. The custom device need enter deep sleep to get a lower power consumption. And using an external interrupt causes a wakeup from power system off. Can it sleep deeply by calling sd_power_system_off() to reduce power consumption in BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE?

Another, how to restart advertising in BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE when advertising timeout?

2.I used a second phone to double check. Same Issue as above. I don't think the phone with nrf connect app has actual disconnected with peripherals though nrf connect app showed disconnected. Because indication led of peripherals flashs when the phone reboot.

So, how to disconnect the peripherals actually by api function of central?

RE: advertising continuous issue with nrf52832

Hung Bui — Thu, 25 Aug 2022 07:43:13 GMT

Hi Sunwell,

1. The configuration you provide has a timeout. You may want to try setting

init.config.ble_adv_fast_timeout = 0 ;

and

init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE

2. Please use a second phone /central to double check if the peripherals actually doing advertising or if for some reason the phone re-connected to the peripherals.