Power consumtion is too high when nRF52810 starts advertise again

[Alice]

Hi,

I'm using 52810 basing on ble_app_uart example. We use a IO to start or stop advertising. Start advertising when the IO level is low while stop advertising when the IO level is high. I use 1 second advertising interval. When powered up, it would advertise and the current is normal. But current is too high(more than 210uA all the time) if I start advertising again after stop advertising. I don’t know whether to start advertising again correctly or not.

Start advertising:

if(!adver_on_flag)
{
advertising_init();
err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
APP_ERROR_CHECK(err_code);

adver_on_flag = true;
}

Stop advertising:

if(adver_on_flag)
{
err_code = sd_ble_gap_adv_stop();
APP_ERROR_CHECK(err_code);
adver_on_flag = false;
}

[Jørgen Holmefjord]

Hi,

Your code to stop and start advertising looks OK. Are you doing anything else between stop and start (i.e. enable some other peripherals that can draw current)?What is the current draw on first run? How do you measure the current consumption?

Best regards.
Jørgen

[Jørgen Holmefjord]

I would recommend getting a Power Profiling Kit for more detailed current measurements. Could you please upload your entire application project for me to check the current consumption and debug this issue?

[Alice]

 Thanks. It's OK now. There's something wrong with the way I give the low level. Besides, I found that remove advertising_init() would be better.