Advertisement handler on SYTEM_ON sleep mode.

RE: Advertisement handler on SYTEM_ON sleep mode.

Vidar Berg — Mon, 08 Jul 2024 18:02:58 GMT

Hello,

The SDK does not include any samples for this, so I made a small example, please see code snippet below.

void RADIO_NOTIFICATION_IRQHandler(void)
{
    static uint32_t count_adv; 

    if (m_conn_handle == BLE_CONN_HANDLE_INVALID) 
    {
        count_adv++;
        NRF_LOG_INFO("Advertisment event counter: %d", count_adv);
    }
}

/*to be called after ble_stack_init() before adv. start */
static void radio_notification_init(void) 
{
    uint32_t err_code;

    NVIC_SetPriority(RADIO_NOTIFICATION_IRQn, APP_IRQ_PRIORITY_LOW);
    NVIC_EnableIRQ(RADIO_NOTIFICATION_IRQn);

    err_code = sd_radio_notification_cfg_set(NRF_RADIO_NOTIFICATION_TYPE_INT_ON_INACTIVE, 0);
    APP_ERROR_CHECK(err_code);

}


/**@brief Function for application main entry.
 */
int main(void)
{
    ...
    ble_stack_init();
    radio_notification_init();
    ...

This snippet should be compatible with any of the Bluetooth samples that define the m_conn_handle variable. This variable is updated on the connect and disconnect event.

RE: Advertisement handler on SYTEM_ON sleep mode.

MCB — Mon, 08 Jul 2024 17:29:52 GMT

Hello. Thank you for your replies . İs there any example about this , which handler is handling that signal in which .c file if you remember/know it's name ?

Thanks again

RE: Advertisement handler on SYTEM_ON sleep mode.

Vidar Berg — Mon, 08 Jul 2024 12:10:14 GMT

Hi,

You can have the application wake up after every advertisement event by enabling the radio notification feature in the SoftDevice. Note that the radio notification signal will trigger after every protocol event, so the application must track whether it is a connection or advertisement event.

Best regards,

Vidar

RE: Advertisement handler on SYTEM_ON sleep mode.

MCB — Mon, 08 Jul 2024 10:57:28 GMT

Hi ,

I am continuously advertising in system on sleep mode , and the device is connectable .... What I want is, I want to hook soft devices adv handler.so I want to call my own function after each advertisement of soft device . Because SD wakes up the device according to defined intervals then goes to sleep . I want to call a function when SD wakes up to advertise. How can I do that , is there any way to hook SD 's advertisement function?

Thank you.

RE: Advertisement handler on SYTEM_ON sleep mode.

Vidar Berg — Mon, 08 Jul 2024 08:53:38 GMT

Hello,

The function on_adv_evt() is called only when the Advertising Module transitions to a new mode. For instance, if you have enabled slow advertising with a timeout, the on_adv_evt() will be invoked when the slow advertising has timed out. However, if you advertise without a timeout, the handler will never be called.

[quote user=""]1-) is this the correct handler function ? [/quote]

You can monitor the BLE event handler if you want to see the connection and disconnect events.

[quote user=""]2-) if it is not , how can i hook to the softdevices advertisement handler in system on sleep mode. [/quote]

Could you say a bit more about what you are trying to acheive?

Best regards,

Vidar