S130 ble_app_hrs_rscs_relay

[leo]

Hi, i have a question about s130 ble_app_hrs_rscs_relay demo, i want to add nus service to this demo, so i transplant the code from the nus demo ，

1：advertising_init use follow param， can't find any service on nrf tool。

static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_HEART_RATE_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_RUNNING_SPEED_AND_CADENCE, BLE_UUID_TYPE_BLE}, {BLE_UUID_NUS_SERVICE, 0x02}};*/ /**< Universally unique service identifiers. */

2：advertising_init use follow param， can‘t find nus service，but can find rate & running speed and cadence。

static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_HEART_RATE_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_RUNNING_SPEED_AND_CADENCE, BLE_UUID_TYPE_BLE}, {BLE_UUID_NUS_SERVICE, 0x01}};*/ /**< Universally unique service identifiers. */

3.advertising_init use follow param， can find nus service。

static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_NUS_SERVICE, 0x02}};

how can i add nus service to the ble_app_hrs_rscs_relay demo？

[Petter Myhre]

1. I guess this is because your advertising packet is too big, and ble_advdata_set() in ble_advertising_init() returns, 0x0000000C. See this for more information. Which is NRF_ERROR_DATA_SIZE, decimal 12. Use the debugger to check the error code. You should turn of optimization, Options for Target->C/C++->Optimization Level 0.

2. You can't use 0x01, you need to use >0x02.

3. Expected.

[leo]

hi petter，

But I have tried disable Initialize Running Speed and Cadence Service，and remove BLE_UUID_RUNNING_SPEED_AND_CADENCE as follow，it also can’t work normal.

static ble_uuid_t m_adv_uuids[] = {{BLE_UUID_HEART_RATE_SERVICE, BLE_UUID_TYPE_BLE}, {BLE_UUID_NUS_SERVICE, 0x02}};

[Petter Myhre]

You don't need to disable initialization of anything. m_adv_uuids is only what is included in the advertising packet. It should, but it doesn't need to reflect the services the GATT server actually includes. What does can't work normal mean? Have you tried the debugger?

[leo]

yes ，i have tried，ble_advertising_init() returns 0x0000000C as you said. how can i fix this problem？

[Petter Myhre]

The length of the advertising packet is fixed, so there isn't much you can do other than limiting what you include in it, you can however add some more data in a scan response. Please see this and this for more information.