How to reset BLE stack?

RE: How to reset BLE stack?

anusha_14 — Mon, 20 Mar 2023 19:13:03 GMT

Hi Susheel,

Thanks for these suggestions. Now, I understand that deleting peer bond information is similar to resetting BLE. So, I have decided to use the function pm_peers_delete() after disabling softdevice for my purpose.

Regards,

Anusha

RE: How to reset BLE stack?

Susheel Nuguru — Mon, 20 Mar 2023 11:46:47 GMT

In the BLE solution we have, you can normally delete the bond information of the peer (single or all). The API is normally based on which solution you are using.

With nRF5SDK based BLE solution, there is a very nice external blog that tells you how to remove bond information of the peer without resetting the BLE.

With NCS (Zephyr based) solution:

As shown in this thread, you can use bt_unpair(id, NULL). If you use NULL or BT_ADDR_LE_ANY as the second argument, then all remote device pair/bond information is deleted from your device.

RE: How to reset BLE stack?

anusha_14 — Fri, 17 Mar 2023 10:36:08 GMT

Hi Susheel,

Let me give you some more information regarding my use case:

In case of Zigbee, suppose, I have bonded two Zigbee end devices to Nordic, which is a Zigbee coordinator. If I want to remove the bonding of these devices, I can perform Zigbee reset on Nordic coordinator by calling the function zb_nvram_erase().

In case of BLE, suppose I have three BLE devices bonded to Nordic which has a Central role. If I want to remove the binding of all the devices, is there a function that I can call to do this, that will reset BLE stack as it was before any devices were bonded to it?

Regards,

Anusha

RE: How to reset BLE stack?

Susheel Nuguru — Thu, 16 Mar 2023 17:51:16 GMT

Not sure what you mean by reset BLE stack. BLE stack does not remember anything persistently apart from encryption keys used for bonding.

What is your use case exactly? Can't you just disable and enable BLE stack instead of resetting it?