PC Repeat Pair

RE: PC Repeat Pair

bear_xiong — Sat, 12 Jun 2021 12:53:11 GMT

Thanks very much.

I try it OK.

RE: PC Repeat Pair

bear_xiong — Fri, 11 Jun 2021 01:33:36 GMT

print log error：0 .

maybe set OK？

My application is

1 .my device pair and bond notebook （win10）。

2. I use button delect my device address， then use one new address pair bond notebook。（notebook have not delet pre device bond information ）

3. notebook can find device （new address），but can not pair and bond。

if notebook delet pre bond information， can pair and bond new address device。

so i want to change irk for notebook can repeat pair bond when do not delet pre device。

i am not sure is ok？ or have other way ？

Thanks

RE: PC Repeat Pair

Kenneth — Thu, 10 Jun 2021 06:51:58 GMT

Can you try:

    ret_code_t error;    
    static pm_privacy_params_t myparams;
    static ble_gap_irk_t device_irk;    
    myparams.p_device_irk = &device_irk;

    error =pm_privacy_get(&myparams);
    NRF_LOG_INFO("Error:%x", error);

    myparams.p_device_irk->irk[0]=0x02;
    myparams.p_device_irk->irk[1]=0x02;
    error =pm_privacy_set(&myparams);
    NRF_LOG_INFO("Error:%x", error);

    pm_privacy_get(&myparams);

    advertising_start(erase_bonds);

RE: PC Repeat Pair

bear_xiong — Thu, 10 Jun 2021 03:22:50 GMT

I reference ,but memcpy(myparams.p_device_irk,irk_v,16) is fail

RE: PC Repeat Pair

Kenneth — Wed, 09 Jun 2021 07:24:51 GMT

Maybe you can check out some of these cases:

https://devzone.nordicsemi.com/f/nordic-q-a/74980/unable-to-reconnect-on-windows-if-ble-privacy-turned-on

https://devzone.nordicsemi.com/f/nordic-q-a/51408/how-do-change-the-value-of-irk

RE: PC Repeat Pair

bear_xiong — Tue, 08 Jun 2021 08:01:41 GMT

yes，i am sure ，it is after peer_manager_init ，and before advertising_start。

buffer_init();
peer_manager_init();
// Start execution.
NRF_LOG_INFO("HID Keyboard example started.");
timers_start();

error =pm_privacy_get(&myparams);
myparams.p_device_irk->irk[0]=0x02;
myparams.p_device_irk->irk[1]=0x02;
error =pm_privacy_set(&myparams);

pm_privacy_get(&myparams);

advertising_start(erase_bonds);

RE: PC Repeat Pair

Kenneth — Tue, 08 Jun 2021 07:13:00 GMT

That error code means one of the following:

* @retval NRF_ERROR_INVALID_STATE If the Peer Manager is not initialized.

* @retval ::NRF_ERROR_INVALID_STATE Privacy settings cannot be changed while advertising.

Can you check that you are calling pm_privacy_set() after peer_manager_init() but before advertising_start()?

Kenneth

RE: PC Repeat Pair

bear_xiong — Tue, 08 Jun 2021 01:32:00 GMT

Thanks your answer。

I call get and set。

error =pm_privacy_get(&myparams);
myparams.p_device_irk->irk[0]=0x02;
myparams.p_device_irk->irk[1]=0x02;
error =pm_privacy_set(&myparams);

I want to make sure change OK。 but can not be change。

error =0x0E。

may be give me a example how to have a new IPK？

RE: PC Repeat Pair

Kenneth — Mon, 07 Jun 2021 18:03:35 GMT

I don't understand why re-pairing does not work, but if you are able to provide an on-air sniffer log (e.g. nrf sniffer), then we might get more information about what the problem may be. You may try to comment out pm_handler_on_pm_evt() in pm_evt_handler(), I have seen this may cause problems.

Regarding changing IRK, the softdevice will by default use the preprogrammed IRK in FICR. It's not possible to change this value, however you can call pm_privacy_set() with the pm_privacy_params_t parameter holding a pointer to a new IRK. Note that you have to store this IRK in flash (for instance using FDS), and make this call after every reset. Also see here:
https://devzone.nordicsemi.com/f/nordic-q-a/47722/the-usage-of-an-irk-for-the-default-setting-and-how-to-change-an-irk-each-bonding-cycle

Kenneth

RE: PC Repeat Pair

bear_xiong — Mon, 07 Jun 2021 13:49:28 GMT

can i change irk? but i use

pm_privacy_get(&myparams);
myparams.p_device_irk->irk[0]=0x02;
myparams.p_device_irk->irk[1]=0x02;
pm_privacy_set(&myparams);

irk can not change?

have same example please?

RE: PC Repeat Pair

bear_xiong — Sat, 05 Jun 2021 12:43:01 GMT

> <info> app: HID Keyboard example started.
00>
00> <info> app: Erase bonds!
00>
00> <info> peer_manager_handler: All peers deleted.
00>
00> <info> app: m_whitelist_peer_cnt 1, MAX_PEERS_WLIST 8
00>
00> <info> app: Fast advertising.
00>
00> <info> app: Connected
00>
00> <info> peer_manager_handler: Connection security failed: role: Peripheral, conn_handle: 0x0, procedure: Bonding, error: 136
00>
00> <info> app: Fast advertising.
00>
00> <info> app: Disconnected