ble_radio_notification_init error 8

[vea45]

Hi,

I recently migrated our code to the SDK 13 (we use the nrf52832) and now the function:

uint32_t err_code = ble_radio_notification_init(6, NRF_RADIO_NOTIFICATION_DISTANCE_5500US, on_ble_radio_active_evt);
APP_ERROR_CHECK(err_code);

Returns error code 8... I can't find any example or similar so I don't know what else I'm missing. This was working on SDK 12.2 and the original code was:

uint32_t err_code = ble_radio_notification_init(6, NRF_RADIO_NOTIFICATION_TYPE_INT_ON_ACTIVE, on_ble_radio_active_evt);
APP_ERROR_CHECK(err_code);
uint32_t err_code=sd_radio_notification_cfg_set(NRF_RADIO_NOTIFICATION_TYPE_INT_ON_ACTIVE, NRF_RADIO_NOTIFICATION_DISTANCE_5500US);
APP_ERROR_CHECK(err_code);

Any hints will be appreciated! Thank you!

[Jørn]

Hello vea45

I apologize for the late response.

I believe the error is generated by the sd_radio_notification_cfg_set called within ble_radio_notification_init. This error is described as

 * @retval ::NRF_ERROR_INVALID_STATE A protocol stack or other SoftDevice is running. Stop all
 *                                   running activities and retry.

Some further information from the description of the sd_radio_notification_cfg_set function states

 *      - To ensure that the radio notification signal behaves in a consistent way, the radio
 *        notifications must be configured when there is no protocol stack or other SoftDevice
 *        activity in progress. It is recommended that the radio notification signal is
 *        configured directly after the SoftDevice has been enabled.

Are you calling the function directly after you enable the SoftDevice?

Best regards

Jørn Frøysa

[vea45]

Thank you! Initializing the radio notification just after the softdevice is the solution!