How to delete the bond info when connected with 51822

[jimlin]

Hi nordic engineer:

I want to know the right process to delete the bonds when the device connected.

There is a button used for bonding. When it pressing by more than 3 seconds, it should go into a bond process, no matter it was connected or not.
I got a app_error_handler() under connected.
Here is my operation:
                            app_sched_execute();
                            power_manage();
			if(bind_info_clear == true)
			{
				err_code=sd_softdevice_disable();
				APP_ERROR_CHECK(err_code);
				// Re-initialize
				bond_manager_init();
				ble_stack_init();
				advertising_init(BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE);
				advertising_start();
				bind_info_clear = false;
			}
 
It must stop the ble first so I disable the softdevie(is it correct?), then delete the bond flash, and re-init the ble stack to enable the softdevice(or need to call sd_softdevice_enable()?), after that, re-start the advertising...
I am confuse on how to disconnect the ble and stop it when doing the flash operation.

If there is any example for this application should be better...

Thanks. Jim

[jimlin]

Hi Morten,

Thanks for your answer.

I prefer to use the second way for the ram would be cleaned while reset.

But, when call the sd_ble_gap_disconnect() as follow, it still got the HardFault by simulating.

[i] if(bind_info_clear == true) { BLE_GAP_DISCONNECT(); }[/i]

and BLE_GAP_DISCONNECT() define as:

[i]#define BLE_GAP_DISCONNECT()
do
{
uint32_t err_code;
uint16_t m_conn_handle = BLE_CONN_HANDLE_INVALID;
err_code = sd_ble_gap_disconnect(m_conn_handle,
BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);
APP_ERROR_CHECK(err_code);
}while(0)[/i]

Is there anything wrong?

[Ole Morten]

If you get a HardFault, I suspect what you see is this: https://devzone.nordicsemi.com/index.php/how-to-redefine-ppi-tasks-inside-a-timer-interrupt

Bottom line is that you can't call softdevice API functions from APP_HIGH interrupts, so you can for example use the scheduler to transfer the event to the main loop.