The nrf51422 couldn't able to discover the service.

RE: The nrf51422 couldn't able to discover the service.

Kenneth — Wed, 09 Oct 2019 08:37:54 GMT

For each call to sd_ble_uuid_vs_add() it will return a unique uuid_type that you should re-use when calling sd_ble_gatts_service_add() later to get the wanted UUID for the service.

RE: The nrf51422 couldn't able to discover the service.

Namitha — Wed, 09 Oct 2019 05:54:49 GMT

Kindly check the changes and replay..I am waiting for the replay

RE: The nrf51422 couldn't able to discover the service.

Namitha — Thu, 03 Oct 2019 07:42:03 GMT

Hi,

I have made changes in the program like this

uint32_t ble_nus_c_init(ble_nus_c_t * p_ble_nus_c, ble_nus_c_init_t * p_ble_nus_c_init)
{
    uint32_t      err_code;
    ble_uuid_t    uart_uuid;
    ble_uuid128_t nus_base_uuid = NUS_BASE_UUID;
	  ble_uuid128_t nus_tx_char_uuid = NUS_TX_CHARACTERISTIC_UUID;
    ble_uuid128_t nus_rx_char_uuid = NUS_RX_CHARACTERISTIC_UUID;
	ble_uuid128_t nus_tx1_char_uuid = NUS_TX1_CHARACTERISTIC_UUID;
  ble_uuid128_t nus_rx1_char_uuid = NUS_RX1_CHARACTERISTIC_UUID;
 
 
	 
   // printf("INIT\r\n");
    
    VERIFY_PARAM_NOT_NULL(p_ble_nus_c);
    VERIFY_PARAM_NOT_NULL(p_ble_nus_c_init);

    err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_ble_nus_c->uuid_type);
    VERIFY_SUCCESS(err_code);
	printf("ddd===%d\r\n",err_code);
	  printf("ble_uuid\r\n");
	if(err_code==NRF_SUCCESS)
	{
		
    printf("sd_ble_uuid\r\n");
	}
    uart_uuid.type = p_ble_nus_c->uuid_type;
    uart_uuid.uuid = BLE_UUID_NUS_SERVICE;
	  err_code = sd_ble_uuid_vs_add(&nus_tx_char_uuid, &p_ble_nus_c->uuid_type);
    VERIFY_SUCCESS(err_code);
    uart_uuid.type = p_ble_nus_c->uuid_type;
    uart_uuid.uuid = BLE_UUID_NUS_TX_CHARACTERISTIC;
    err_code = sd_ble_uuid_vs_add(&nus_rx_char_uuid, &p_ble_nus_c->uuid_type);
    VERIFY_SUCCESS(err_code);
    uart_uuid.type = p_ble_nus_c->uuid_type;
    uart_uuid.uuid = BLE_UUID_NUS_RX_CHARACTERISTIC;
    err_code = sd_ble_uuid_vs_add(&nus_tx1_char_uuid, &p_ble_nus_c->uuid_type);
    VERIFY_SUCCESS(err_code);
    uart_uuid.type = p_ble_nus_c->uuid_type;
    uart_uuid.uuid = BLE_UUID_NUS_TX1_CHARACTERISTIC;
    err_code = sd_ble_uuid_vs_add(&nus_rx1_char_uuid, &p_ble_nus_c->uuid_type);
    VERIFY_SUCCESS(err_code);
    uart_uuid.type = p_ble_nus_c->uuid_type;
    uart_uuid.uuid = BLE_UUID_NUS_RX1_CHARACTERISTIC;
    
    
	 //  printf("%d\r\n",uart_uuid.uuid);  
   //  printf("%d\r\n",uart_uuid.type);  
   
   
    p_ble_nus_c->conn_handle           = BLE_CONN_HANDLE_INVALID;
    p_ble_nus_c->evt_handler           = p_ble_nus_c_init->evt_handler;
    p_ble_nus_c->handles.nus_rx_handle = BLE_GATT_HANDLE_INVALID;
    p_ble_nus_c->handles.nus_tx_handle = BLE_GATT_HANDLE_INVALID;

    return ble_db_discovery_evt_re



and i have made vs_uuid_count=5 not with this function  NRF_SDH_BLE_VS_UUID_COUNT  as
as this definition is not there in this sdk 12.3... still it is not connecting and 
it is not executing this function the errcode is not success for this function .
can you help me

RE: The nrf51422 couldn't able to discover the service.

Namitha — Thu, 03 Oct 2019 06:58:23 GMT

I am using nrf51422 as central in our project.

Plz help me

RE: The nrf51422 couldn't able to discover the service.

Namitha — Thu, 03 Oct 2019 06:38:54 GMT

Thanks for the reply.

Sorry for the delay response.I am using SDK 12.3, pca10028 so in this sdk the NRF_SDH_BLE_VS_UUID_COUNT, sd_ble_uuid_vs_add(), These functions are not there .so can you tell me do i need to use 15.3 sdk (nrf52) or can i make change in this sdk 12.3(nrf51).plz help me

RE: The nrf51422 couldn't able to discover the service.

awneil — Tue, 01 Oct 2019 10:34:18 GMT

[quote userid="83393" url="~/f/nordic-q-a/52677/the-nrf51422-couldn-t-able-to-discover-the-service/212711"]replay[/quote]

* reply

RE: The nrf51422 couldn't able to discover the service.

Kenneth — Tue, 01 Oct 2019 09:19:33 GMT

Start with the ble app central and peripheral example:

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/ble_sdk_app_blinky_c.html

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/ble_sdk_app_blinky.html

Once you have that up and running the next step is to add vendor specific UUID's as shown in the example code already, e.g. look at NRF_SDH_BLE_VS_UUID_COUNT, sd_ble_uuid_vs_add(), and sd_ble_gatts_service_add(). A tip is that the uuid_type from sd_ble_uuid_vs_add() is used as an input parameter to the sd_ble_gatts_service_add(). This is for instance seen in ble_lbs_init().

RE: The nrf51422 couldn't able to discover the service.

Namitha — Tue, 01 Oct 2019 06:38:53 GMT

Kindly clear my doubt..I am waiting for your replay.

RE: The nrf51422 couldn't able to discover the service.

Namitha — Sat, 28 Sep 2019 11:05:00 GMT

Thanks for replying.

Yes i remember to add base uuid to this sd_ble_uuid_vs_add function.So here i have added base uuid. But i don't know to how to use and where to use all the 4 characteristics in the program . can you plz tell me how to enable the cccd .plz tell me.

RE: The nrf51422 couldn't able to discover the service.

Turbo J — Sat, 28 Sep 2019 10:49:40 GMT

Did you remember to sd_ble_uuid_vs_add() those UUIDs before use?

Not that using four or more vendor specific uuids requires adjusting the vs_uuid_count parameter field for sd_ble_enable().

RE: The nrf51422 couldn't able to discover the service.

Namitha — Sat, 28 Sep 2019 04:24:44 GMT

Thanks for the reply.

Yes i know that it wont support for new ble designs.since we have already started the development with this controller so we have started with this. can you tell me which one is the latest BLE designs so that which we will start development which will support TI's Bluetooth and also this has to support 4 characteristics with different uuid .so plz suggest me.

RE: The nrf51422 couldn't able to discover the service.

awneil — Fri, 27 Sep 2019 12:00:51 GMT

You know that nRF51 is not recommended for new BLE designs?

https://devzone.nordicsemi.com/f/nordic-q-a/42960/status-of-nrf51-products/169728#169728