How BLE scan is done in the DFU (OTA) example?

[TigerD]

Hi,

For nRF52840 BLE, in the DFU (OTA) example (buttonless OTA):

../nRF5_SDK_15.3.0_59ac345/examples/ble_peripheral/ble_app_buttonless_dfu

How scanning is done? Or where and which function initializes scan parameters?  Something similar to 

nrf_ble_scan_init_t init_scan;
m_scan.scan_params.window = m_iCommandScanWindow_MS; //MIN_SCAN_WINDOW;
m_scan.scan_params.interval = SCAN_INTERVAL;
m_scan.scan_params.timeout = 0;
m_scan.scan_params.scan_phys = 0 ;

err_code = nrf_ble_scan_init(&m_scan, &init_scan, scan_evt_handler);

Is there any way that I can modify the scanning interval and scanning timeout?

Thank You,

David Zhou

[Vidar Berg]

Hi David,

Could you try to explain a bit more about why you are adding a scanner to this project? Is it to connect to other peripheral devices? The 'ble_app_buttonless_dfu' is a peripheral only example so it doesn't do scanning by default.

Regards,

Vidar

[TigerD]

Vidar,

Correct myself, the advertising interval is set through:

  Init.config.ble_adv_fast_interval   = APP_ADV_INTERVAL.

That I can change.

Thanks,

David