Creating a Central device

[DavidC]

Hallo Community,

I am new with Nordic chips, now Im trying to develop a BLE central, then i took the BLE_CENTRAL BLE_APP_UART example to start doing it, the SDK is the SDK13, the boards PCA10040 and using Eclipse neon. But when I flash the board with the project, it 's any connectiong with my BLE peripheral.

I am printing some some, during the code in order to figure out if the code is working, I know is not the best debugging, I got problem in ble_stack_uint, more precise here:

    NRF_LOG_INFO("Clock_.\r\n");
nrf_clock_lf_cfg_t clock_lf_cfg = NRF_CLOCK_LFCLKSRC;

NRF_LOG_INFO("SD handler_.\r\n");
// Initialize the SoftDevice handler module.
NRF_LOG_INFO("SD handler_1.\r\n");
SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);
NRF_LOG_INFO("SD handler_2.\r\n");

Something is happening with SOFTDEVICE_HANDLER_INIT becuase the next log_info is not dispaying anything in the RTT windown.

Do you have any idea what is going on?

Regards, David Caraveo

[DavidC]

Hung Bui, thanks for you help, I can know do my scan in the central example. Now I have a 128-UUID from a costum service: 0x0000000000001000800000805F9B34FB;

According to the example of central uart, they use a 16-UUID but when I change the uuid in the reference .uiid of ble_uuid_t. I have a problem. I cheked it out in other questions and the said i should use ble_uuid128_t const * p_vs_uuid and sd_ble_uuid_vs_add(); I did, ble_uuid128_t const * p_vs_uuid = 0x0000000000001000800000805F9B34FB; sd_ble_uuid_vs_add(p_vs_uuid, uint8_t *quatServ);

but I have problems with the uuid: integer constant is too large for its type.

I counted and it is the 16 bytes.

Where am I wrong?

Regards, David