Stop Advertising on nrf52832

[Mauro Silva]

Hi! What is the proper use of sd_ble_gap_adv_stop in SDK 15? I'm using nrf52832 in my application but can't seen to find a corret way to stop advertising.

Looking on ble_gap.h I've seen that this function requires a adv_handle as a parameter but what exactly is it expecting?

[Eric Nguyen]

I think you can look around this document which shows how to use Advertising on BLE. Moreover, if you want to stop advertising, you can do like this.

- You have to generate the event with interval delay after sd_ble_gap_adv_start is called then try to call sd_ble_gap_adv_stop after calling sd_ble_gap_adv_start and waiting for time with timer. 

[Mauro Silva]

Oh, thank You! I've been looking at the documentation you provided and it says that the parameter  adv_handle is "The advertising handle that should stop advertising.".I've tried to set this parameter as the same I used in  my Advertising start function, but now I'm getting the error: ERROR 8 [NRF_ERROR_INVALID_STATE] .

On advertising start I'm using an instance defined by BLE_ADVERTISING_DEF,  but I realized that the instance create doesn't have a adv_handle on it.How can I know if I'm defining the proper instance and treat this error?

As for your suggestion, from what I understood that would be a timed event to stop advertising right? Is it possible to stop it after a particular condition is met?

In my application i'm trying to stop the advertising after a certain variable is set, this would be like after pressing a button or something similar. Thanks in advance for your time.

[Eric Nguyen]

Mauro Silva said:

On advertising start I'm using an instance defined by BLE_ADVERTISING_DEF,  but I realized that the instance create doesn't have a adv_handle on it.How can I know if I'm defining the proper instance and treat this error?

The BLE_ADVERTISING_DEF is defined at ble_advertising.h. Can you help me check again that: the ble_advertising.h is included your project? If not please add this library and in sdk_config.h file, please certainly the BLE_ADVERTISING_ENABLED sets 1.

[Mauro Silva]

I double checked it and the library is included and BLE_ADVERTISING_ENABLED is properly enabled.

[Sigurd]

Try this:

sd_ble_gap_adv_stop(m_advertising.adv_handle);

If it returns 8(NRF_ERROR_INVALID_STATE) it means that, from the documentation:

"Invalid state to perform operation (most probably not in advertising state)."