How can I update my passkey using sd_ble_opt_set() on runtime

[Akram Karimi]

Hello everyone, I successfully implemented the static key to access a characteristic now I want the user to udpate the passkey through another characteristic (which is also protected).

I successfully read the value of the passkey entered by the user (through mobile phone app) but unable to find a way how to update the BLE_GAP_OPT_PASSKEY.

What I am currently doing is that I am using sd_ble_opt_set() with updated passkey in the BLE_GAP_EVT_DISCONNECTED event. Which means I am trying to update the passkey whenever the client is disconnected from the server.

But the problem is that whenever the client disconnects from server, my nRF DK52 hangs and all 4 LEDs lit up. No advertisement nothing. I require to restart the program.

I am building my app by doing modification on "ble_tutorial_characteristic"

Can anyone help me how to update the passkey during the program. Thanks

[RK]

If all 4 LEDs are lit you're in the fault handler which means you've called a call with some invalid parameter, received an error and app_error_check() has gone to the fault handler. Put a breakpoint in the fault handler and trace the error back to the call to find out what error code was returned and then figure out why.