calling pm_peers_delete cause fatal error

[yu1998]

calling pm_peers_delete cause fatal error

why does it happened?

nRF5_SDK_17.0.2_d674dde/ble_app_multirole_lesc

[Sigurd]

You need to add DEBUG as preprocessor define for the error to be printed.

[yu1998]

can you elaborate on it? hardly understand what  u are talking about

[yu1998]

Sigurd said:

change the behavior of app_error_fault_handler() by defining DEBUG

Can you teach me how to do so?

So, here is the issue, tell me if you've heard it before.

In nRF5_SDK_17.0.2_d674dde/ble_app_multirole_lesc

for the ide I use Segger embedded studio for ARM

In the main function, if I remove the if-else statement and force to delete_bonds while booting up the SYstem will keep rebooting  and I don't know why(acting as an infinite loop)

what I am trying to do is that I am adding the pm_peers_delete() function into the button 3 event(bsp_event_handler) which is in the main.c

but yesterday I found out it will just keep looping the pm_peers_delete function and crash 

seems like the same function act the same in the main function(same issue)

so why does this happened?

btw I did not add any for(;;) or while(true) outside the scope is this a bug??

[Sigurd]

yu1998 said:

Can you teach me how to do so?

 In SES, set this to DEBUG:

It should then not reset if you enter the app_error_fault_handler

[yu1998]

It shows as the pictures

why is this happening

main.c 282

static void adv_scan_start(void) {
  ret_code_t err_code;

  scan_start();

  // Turn on the LED to signal scanning.
  bsp_board_led_on(CENTRAL_SCANNING_LED);

  // Start advertising.
  err_code = ble_advertising_start(&m_advertising, BLE_ADV_MODE_FAST);
  APP_ERROR_CHECK(err_code);

  NRF_LOG_INFO("Advertising");
}

it still keeps crashing and rebooting

while am I using the release mode it did not happen

but why

[Sigurd]

If it's ble_advertising_start() that returns error 8 (NRF_ERROR_INVALID_STATE), then looking at the doc here , it means that the advertising module is not initialized. i.e. advertising_init() need to be called before adv_scan_start()

[yu1998]

Sigurd said:

it means that the advertising module is not initialized. i.e. advertising_init() need to be called before adv_scan_start()

but i have already called

[Sigurd]

OK, it could be that underlaying function sd_ble_gap_adv_start() that also returns  NRF_ERROR_INVALID_STATE      

* @retval ::NRF_ERROR_INVALID_STATE      adv_handle is not configured or already advertising.

2 delete_bonds could perhaps trigger this.

Try to remove the first call to delete_bonds().

If you want to "force" delete_bonds to be called, then set erase_bonds= true instead

[yu1998]

but why cant i direct use delete_bonds func even I remove the second one it still happened

Sigurd said:

adv_handle is not configured or already advertising.

also did you mean delete_bond() will call advertise start function? how to fix that?

[Sigurd]

Likely because you are trying to call adv_scan_start() in main(), but it's already advertising.

delete_bonds() -> event PM_EVT_PEERS_DELETE_SUCEEDED -> adv_scan_start() called in pm_evt_handler()

, then you call adv_scan_start() again in main(), and get NRF_ERROR_INVALID_STATE.

Sigurd said:

If you want to "force" delete_bonds to be called, then set erase_bonds= true instead

alternatively, you could try this:

 

    advertising_init();
    
    delete_bonds(); // Scanning and advertising is started by PM_EVT_PEERS_DELETE_SUCEEDED.

    // Start execution.
    NRF_LOG_INFO("LE Secure Connections example started.");

   
    // Enter main loop.
    for (;;)
    {
        idle_state_handle();
    }

[yu1998]

so it seems like the adv_scan_start() cause this so can I add delete_bonds() to a button without error?

i need to try to stop advertising，but it seems like it cannot be stop using

err_code=sd_ble_gap_adv_stop(m_advertising.adv_handle);
    APP_ERROR_CHECK(err_code);

the same error shows as above

so how to stop advertise correctly

[yu1998]

nvm I think I fix those I need to stop both

err_code=sd_ble_gap_adv_stop(m_advertising.adv_handle);
    APP_ERROR_CHECK(err_code);
    err_code=sd_ble_gap_scan_stop();
    APP_ERROR_CHECK(err_code);