RE: Issue detecting buttonless DFU characteristic

klockhart — Wed, 04 Apr 2018 13:58:23 GMT

Turns out the issue was that I needed to add the Nordic vendor specific UUID in order for the characteristic to be discovered. I changed my init function to the following:

#define BLE_DFU_SERVICE_UUID 0xFE59 //!< The UUID of the DFU Service.
#define BLE_NORDIC_VENDOR_BASE_UUID \
{{ \
0x50, 0xEA, 0xDA, 0x30, 0x88, 0x83, 0xB8, 0x9F, \
0x60, 0x4F, 0x15, 0xF3, 0x00, 0x00, 0xC9, 0x8E \
}}

uint32_t dfu_svc_init(void)
{
ble_uuid_t buttonless_dfu_uuid;
ble_uuid_t nordic_uuid;
ble_uuid128_t nordic_base_uuid = BLE_NORDIC_VENDOR_BASE_UUID;
uint8_t nordic_base_uuid_type;
uint32_t err_code;

err_code = sd_ble_uuid_vs_add(&nordic_base_uuid, &nordic_base_uuid_type);
VERIFY_SUCCESS(err_code);

nordic_uuid.type = nordic_base_uuid_type;
nordic_uuid.uuid = BLE_DFU_SERVICE_UUID;

err_code = ble_db_discovery_evt_register(&nordic_uuid);
VERIFY_SUCCESS(err_code);

buttonless_dfu_uuid.type = BLE_UUID_TYPE_BLE;
buttonless_dfu_uuid.uuid = BLE_DFU_SERVICE_UUID;

return ble_db_discovery_evt_register(&buttonless_dfu_uuid);
}