NRF_ERROR_INVALID_LENGTH when setting 10 chars device name

[asaf]

I use sd_ble_gap_device_name_set to set 10 chars device name 

then getting NRF_ERROR_INVALID_LENGTH  in sd_ble_gap_adv_set_configure.

all OK when tested 3 chars device name .

ret_code_t ret;
ble_gap_adv_params_t adv_params = get_adv_params();

adv_params.duration = flash_adv_params.adv_duration_sec*1000/10;

ble_gap_conn_sec_mode_t sec_mode;
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
char unitName[DEVICE_NAME_MAX_LEN];
device_info_get_unit_name(&unitName);

ret = sd_ble_gap_device_name_set(&sec_mode, (const uint8_t *)unitName, (uint16_t)strlen(unitName));
APP_ERROR_CHECK(ret);

advertise_whitelist_clear();
NRF_LOG_DEBUG("Setting adv params PHY to 1M. ");
adv_params.primary_phy = BLE_GAP_PHY_1MBPS;
adv_params.secondary_phy = BLE_GAP_PHY_1MBPS;
adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
ret = ble_advdata_encode(&adv_data, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
APP_ERROR_CHECK(ret);
ret = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
APP_ERROR_CHECK(ret);

[Susheel Nuguru]

Hi Asaf,

What is the total size of the advertising packet you are are using in m_adv_data.adv_data.len? It cannot exceed 31 bytes

[asaf]

m_adv_data.adv_data.len is set to BLE_GAP_ADV_SET_DATA_SIZE_EXTENDED_CONNECTABLE_MAX_SUPPORTED (238).

and't it doesn't changed when I set longer name

[asaf]

I found the issue , I was using size of extended advertise.
How do I add advertise name  on scan response ( in my code)? 

[Susheel Nuguru]

asaf said:

How do I add advertise name  on scan response ( in my code)? 

 It is done the same way as you put it in the advertising packet. Most the SDK examples that use ble_advertising_init show you how to put device name in the init.advdata. If you want this in scan response instead of adv packet, then you encode that in the init.srdata instead of init.advdata