Hello,
I encountered a problem while trying to bond a nrf54L15 (central) with a nrf52810 (peripheral). The firmware of the nrf54 is using Nordic Connect SDK and the nrf52 uses nRF5 SDK. I'm using bt_conn_set_security(conn, BT_SECURITY_L2) when connected to the nrf52. On the other side I get the error BLE_GAP_SEC_STATUS_AUTH_REQ and the pairing fails.
My security params of the nrf52 look like this:
ble_gap_sec_params_t sec_param;
memset(&sec_param, 0, sizeof(ble_gap_sec_params_t));
// Security parameters to be used for all security procedures.
sec_param.bond = 1;
sec_param.mitm = 0;
sec_param.lesc = 0;
sec_param.keypress = 0;
sec_param.io_caps = BLE_GAP_IO_CAPS_NONE;
sec_param.oob = 0;
sec_param.min_key_size = 7;
sec_param.max_key_size = 16;
sec_param.kdist_own.enc = 1;
sec_param.kdist_own.id = 1;
sec_param.kdist_peer.enc = 1;
sec_param.kdist_peer.id = 1;
Here is a part of the Kconfig file of the nrf54:
CONFIG_BT_CENTRAL=y
CONFIG_BT_SCAN=y
CONFIG_BT_SMP=y
CONFIG_BT_GATT_CLIENT=y
CONFIG_BT_GATT_DM=y
CONFIG_HEAP_MEM_POOL_SIZE=4096
CONFIG_BT_SETTINGS=y
CONFIG_SETTINGS=y
CONFIG_HW_STACK_PROTECTION=y
CONFIG_BT_SCAN_WITH_IDENTITY=y
CONFIG_BT_FILTER_ACCEPT_LIST=y
CONFIG_BT_MAX_PAIRED=5
CONFIG_BT_SMP_SC_ONLY=n
I used the nearly identical code for another project, where I'm pairing a nrf52833 (central) with the nrf52810 (peripheral) and that just worked. Am I missing some configuration of the nrf54? The firmware of the nrf52810 should not be altered.
Best regards,
Christian
