How can I close a open BLE connection properly from peripheral side

RE: How can I close a open BLE connection properly from peripheral side

shin — Sun, 04 Oct 2015 02:33:01 GMT

Hello, As you mentioned BLE_HCL_REMOTE_USER_TERMINATED_CONNECTION stopped the connection between central and peripheral. But advertising packets are still broadcasted even though I called sd_ble_gap_adv_stop() after stopping the connection. I checked this situation with a packet sniffer. Let me know how to stop advertising. I am using S110. Thanks. Now I mistook understanding my code: ble_evt_dispatch() calls ble_advertising_on_ble_evt(). Therefore, after stopping advertising, advertising restarts automatically. Sorry my dump message. Thanks.

RE: How can I close a open BLE connection properly from peripheral side

Andreas — Fri, 07 Aug 2015 11:22:26 GMT

Oh, Ok. Thank you. Then I have to take care of this by my own... Regards, BTprogrammer

RE: How can I close a open BLE connection properly from peripheral side

Petter Myhre — Fri, 07 Aug 2015 10:54:33 GMT

There is not. Please see this question.

RE: How can I close a open BLE connection properly from peripheral side

Andreas — Fri, 07 Aug 2015 07:27:47 GMT

Hello Petter, thank you for your reply! And sorry for my late response. The explanations about this topic helped a lot. Is there a function to get the actual state of the softdevice?

Regards, BTprogrammer

RE: How can I close a open BLE connection properly from peripheral side

Petter Myhre — Fri, 31 Jul 2015 12:32:31 GMT

As Alex mentioned you should use BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION, please see this question for the difference between BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION and BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION.

Error code 0x00000007 from sd_ble_gap_adv_stop(); is NRF_ERROR_INVALID_STATE, which you can see above the function in ble_gap.h. And as Alex mentioned you probably get this because you are not actually advertising.

RE: How can I close a open BLE connection properly from peripheral side

Alex — Fri, 31 Jul 2015 11:23:51 GMT

You don't need to stop advertising because you haven't started it after disconnection.

RE: How can I close a open BLE connection properly from peripheral side

Andreas — Fri, 31 Jul 2015 11:19:03 GMT

Hi, yes I also tried "BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION" then I will get no error for the sd_ble_gap_disconnect function. But stopAdvertising still returns error 8. Another question for me is, what does nordic mean with "REMOTE_USER". The person that uses the device or the connected receiver? For my understanding, LOCAL_HOST would be the more logical value...

RE: How can I close a open BLE connection properly from peripheral side

Alex — Fri, 31 Jul 2015 10:19:21 GMT

For S110:

 * @param[in] hci_status_code HCI status code, see @ref BLE_HCI_STATUS_CODES (accepted values are @ref BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION and @ref BLE_HCI_CONN_INTERVAL_UNACCEPTABLE).

not sure about S120, check in function definition in ble_gap.h I think.