set static passkey between two nrf52840 and nrf52832

[syc776]

nrf52840 is ble central ,nrf52832 is ble peripheral,

nrf52832 is modify finish.

but i do not know how assign ble central .

now i use the example(ble_app_uart_c) to implete my project , please tell me how to modify it to set static passkey

i can not get BLE_GAP_EVT_AUTH_KEY_REQUEST vent!

please help me!

thanks for everyone answers!

[Hung Bui]

Hi Syc, 

Before testing with static passkey, it's better to verify that passkey works first. 

I would suggest you to try ble_app_gls example where we have passkey implemented. 

Note that to be able to get passkey working, you would need to configure the SEC_PARAM_IO_CAPABILITIES to have at least BLE_GAP_IO_CAPS_DISPLAY_ONLY (when you want to display the passkey) and BLE_GAP_IO_CAPS_KEYBOARD_ONLY on the other side where the passkey to be entered. 

And SEC_PARAM_MITM should be set to 1. 

[syc776]

thanks your answer！

ble_central can not find ble_app_gls example!

ble peripheral

i can find the example !

but i want to konw how to assign static passkey ble central!

please help me !

[Hung Bui]

Please clarify that you can set a certain passkey (static passkey) when pairing. So that you always have the same 6 digits number when you pair. 

After you have that, if you want to change the static passkey, as far as i know you just need to call sd_ble_opt_set() with BLE_GAP_OPT_PASSKEY and the new passkey that you want. Similar to what you have in your original post. 

[syc776]

yes. I do like this ,but call sd_ble_opt_set() return invalid parameters

so maybe have some mistakes ;

[syc776]

return err_code is 7(invalid parameters)!

[syc776]

[Hung Bui]

Please post your full code. Including where you call the function and what exact "STATIC_PASSKEY" you have.