Radio notification only after BLE radio

RE: Radio notification only after BLE radio

ponlakshmi — Thu, 01 Oct 2015 04:57:29 GMT

@kerem Hi Kerem have You Finally achieved what You want which means changing the advertising interval
(which is user defined) after an advertising start..Thanks in advance

RE: Radio notification only after BLE radio

kerem — Wed, 24 Jun 2015 10:52:39 GMT

Im setting the advertising interval inside advertising_init() via adv params, same as the ble_app_hrs example. But im getting the value from a characteristic, after i get on_disconnect(), im calling adv_init() and adv_start() with new params. I will try calling stop first thank you.

RE: Radio notification only after BLE radio

Nikita — Wed, 24 Jun 2015 03:45:37 GMT

How exactly did you change your advertising interval? Did you call stop/start?

devzone.nordicsemi.com/.../

RE: Radio notification only after BLE radio

kerem — Wed, 24 Jun 2015 03:38:40 GMT

Consecutive events, tested with different advertising intervals.

RE: Radio notification only after BLE radio

Nikita — Wed, 24 Jun 2015 03:28:43 GMT

Do you mean the same time between radio_active and radio_inactive event? Or the time between consecutive radio_active or radio_inactive events?

RE: Radio notification only after BLE radio

kerem — Wed, 24 Jun 2015 00:11:30 GMT

No matter how I change the advertising period, I still get the same frequency in between radio_active and radio_inactive events.

RE: Radio notification only after BLE radio

Sarah — Sun, 31 May 2015 18:49:31 GMT

When I use this code with SDK 7.1, I get this warning:" warning: implicit declaration of function 'ble_radio_notification_init' 'is invalid in C99". I don't get compilation errors, but I cannot build the project. Why could this be?

RE: Radio notification only after BLE radio

Geir Strand — Wed, 20 Aug 2014 13:14:57 GMT

I have done some more debug'ing here, and the radio_active flag seems to be true if one has a connection active. Hence, there is no way to determine if the interrupt happens before or after the radio transmission. In addition, I tried using NRF_RADIO_NOTIFICATION_DISTANCE_NONE as (they way I see it) this would only happen after a radio transmission. However, by using this I get a parameter error in return.

RE: Radio notification only after BLE radio

Nikita — Wed, 20 Aug 2014 04:30:39 GMT

You can just use standard ble_radio_notification_init function, that already calling sd_radio_notification_cfg inside, it will generate interrupts on both inactive to active and active to inactive events and you can determine the event type with radio_active value in ble_on_radio_active_evt handler.

UPD:

NRF_RADIO_NOTIFICATION_DISTANCE_NONE can only be used when the event does not have a notification. NRF_RADIO_NOTIFICATION_DISTANCE parameter is only distance before radio activity and there shoudn't be delay with interrupt after radio activity. Here is written: "The distance from the active notification to start of radio activity."

I have done some more debug'ing here, and the radio_active flag seems to be true if one has a connection active. Hence, there is no way to determine if the interrupt happens before or after the radio transmission.

Why? When ble_on_radio_active_evt handler will be called with (radio_active == true) it means that now after NRF_RADIO_NOTIFICATION_DISTANCE_XXX time will be radio activity. If ble_on_radio_active_evt handler will be called with (radio_active == false) it means that radio activity ended and now radio is inactive.

RE: Radio notification only after BLE radio

kmorris — Tue, 19 Aug 2014 19:52:53 GMT

So, just asking for clarification. If I use this example to set ble_radio_notification_init in conjunction with sd_radio_notification_cfg and set the TYPE to NRF_RADIO_NOTIFICATION_TYPE_INT_ON_INACTIVE, it will ignore the distance setting and provide a radio notification on inactive?

RE: Radio notification only after BLE radio

Nikita — Thu, 14 Aug 2014 12:20:42 GMT

Like this:

bool current_radio_active_state = false;

void ble_on_radio_active_evt(bool radio_active)
{
    current_radio_active_state = radio_active;
}

static void radio_notification_init(void)
{
    uint32_t err_code;

    err_code = ble_radio_notification_init(NRF_APP_PRIORITY_LOW,
                                           NRF_RADIO_NOTIFICATION_DISTANCE_800US,
                                           ble_on_radio_active_evt);
    APP_ERROR_CHECK(err_code);
}


int main(void)
{
...
    radio_notification_init();
...
}