Bond problem after 50 cycles bond/delete pair

[Mikhail]

SDK15, nRF52832, S132

I notice that after about 30-50 bond and delete cycles peripherial to central, central doesn't want to bond. Before it bond and after that delete bond was success. If central device reprogram by nrf go studio, all warks fine again till to 30-50 bond/delete.

How to decide this problem?

[Amanda Hsieh]

Hi, 

Could you provide the logs on both sides (peripheral & central)? Do you see any error message?

-Amanda H.

[Mikhail]

HI!

What kind of logs and what do you want to see in this logs?

In wich place of code should I inserts this logs?

Regarding error messages- I'll check it again and will give you answear.

[Amanda Hsieh]

Hi, 

You could enable the log in the sdk_config.h as

// <e> NRF_LOG_ENABLED - nrf_log - Logger
//==========================================================
#ifndef NRF_LOG_ENABLED
#define NRF_LOG_ENABLED 1
#endif
// <h> nRF_Log

//==========================================================
// <e> NRF_LOG_BACKEND_RTT_ENABLED - nrf_log_backend_rtt - Log RTT backend
//==========================================================
#ifndef NRF_LOG_BACKEND_RTT_ENABLED
#define NRF_LOG_BACKEND_RTT_ENABLED 1
#endif

Then, you could see the RTT log in the Segger.

-Amanda H. 

[Mikhail]

Yes, I know it how to enable log. But wich info sould take from this log?

Info about bond or anythink more?

[Amanda Hsieh]

I need the info about: 

I notice that after about 30-50 bond and delete cycles peripherial to central, central doesn't want to bond.

Thanks. 

-Amanda H. 

[Mikhail]

After 60 bond /delete pairs, on the central side I can't bond more and get above error.

In a debugger after call function 

pm_peer_count();

this function returned 0. Therefore previos delete bonded pairs was success by call function:

APP_ERROR_CHECK(pm_peers_delete());

[Mikhail]

1001 string means:

                // Initiate bonding.
                err_code = pm_conn_secure(p_ble_evt->evt.common_evt.conn_handle, false);
                if (err_code != NRF_ERROR_INVALID_STATE)
                {
                    APP_ERROR_CHECK(err_code);
                }

[Amanda Hsieh]

Hi Mikhail, 

Have you tried to run garbage collection? This post might help you. 

-Amanda H.