CONFIG_GPIO=y CONFIG_SPI=y CONFIG_SPI_SLAVE=y CONFIG_MAIN_STACK_SIZE=512 CONFIG_BT=y CONFIG_BT_HCI_RAW=y CONFIG_BT_MAX_CONN=20 CONFIG_BT_TINYCRYPT_ECC=n CONFIG_BT_RX_BUF_COUNT=10 CONFIG_BT_RX_BUF_LEN=255