BLE store bonding data problem

[Anonymous]

Hi there!

I'm using a CYBLE-222005-00 module, with security configuration for bonding with JustWorks since my device has NoInput/NoOuput (see attachement). However, the saving of the bonding data does not seem to work. After a wake-up from hibernate, I cannot re-connect with the previously bonded Smartphone getting a CYBLE_EVT_GAP_AUTH_FAILED event from the BLE stack.

Here is what I do in he code:

On the callback event CYBLE_EVT_GAP_AUTH_COMPLETE I call

while(CYBLE_ERROR_OK != CyBle_StoreBondingData(0));

and later I get the event CYBLE_EVT_PENDING_FLASH_WRITE where I do nothing in the code. This event seems to be triggered even when I don't call the CyBle_StoreBondingData() method before...

Is there a way to check, if the bonding data is stored correctly in the flash or am I missing some other things?

Thanks for your help!

[Anonymous · Accepted solution]

Problem was, that I was calling the CyBle_StoreBondingData at the wrong place in the code (in the callback handler of the BLE stack). Now I added the following lines to my main routine and it works! 🙂

if((cyBle_pendingFlashWrite != 0u) && (CyBle_GetState() == CYBLE_STATE_CONNECTED))
    {
        CYBLE_API_RESULT_T apiResult;
        apiResult = CyBle_StoreBondingData(0u);
        (void)apiResult;
        printf("Store bonding data, status: %x \r\n", apiResult);
    }

[Anonymous]

Yeah; Calling flash write routines during an interrupt handler is probably not the best idea

Possibly it could be caused by not calling the CyBle_ProcessEvents() between calls to the CyBle_StoreBondingData(0u) function, but idk for sure.