Add CTS current time service

RE: Add CTS current time service

annapalu — Tue, 28 Jun 2016 11:57:32 GMT

Hi Kristin, can you give me a suggestion about how modify the source file of nRFGO tools to add the cts service. Thanks.

N.b. I open a new discussion about this devzone.nordicsemi.com/.../

RE: Add CTS current time service

FormerMember — Fri, 24 Jun 2016 10:17:55 GMT

I would think that the glucose measurement profile in the nRF Toolbox does only look for the UUIDs contained in the Glucose profile. The nRF Toolbox is open source, so you can modify the glucose measurement profile to look for the CTS profile as well. The source code for the nRF Toolbox can be found from this pagehere. The source code for nRF Master Control panel is not available, but it comes with an API, the API can be found from here.

RE: Add CTS current time service

annapalu — Fri, 24 Jun 2016 09:29:17 GMT

Thank you so much for the support!!!

Now I have a new issue, with master control panel it's works and print data. If i use nRFtoolbox, because i want use a glucose measurement profile, the current service profile is not found. With master control panel i add manually the cts service. Is There a similary procedure to add cts service for nRF toolbox??

Thanks a lot.

RE: Add CTS current time service

FormerMember — Fri, 24 Jun 2016 07:58:43 GMT

Good that you were able to solve the problem!

RE: Add CTS current time service

annapalu — Fri, 24 Jun 2016 07:53:17 GMT

I use nRF52-DK

RE: Add CTS current time service

annapalu — Fri, 24 Jun 2016 07:52:17 GMT

I understand what happens. I don't start the db_discovery_manager (ble_db_discovery_start), that is implemented in the device_manager but not in peer_manager. I add it and now seems that it works... Thank you!!

RE: Add CTS current time service

FormerMember — Fri, 24 Jun 2016 07:51:59 GMT

Do you have an extra nRF51-DK or a nRF51-Dongle? If so, could you use the sniffer to check how/if the service/characteristic discovery takes place? And upload then sniffer trace here?

The sniffer should be used with Wireshark, and it works best with version 1.10, not one of the newer versions. Wireshark can be downloaded here:

RE: Add CTS current time service

annapalu — Fri, 24 Jun 2016 07:13:49 GMT

Hy Krisitin,

thank you for the answer. I add all things about the service:

initialization of service cts in service_init();
initialization of db disc discovery in my main();
add db_disc_handler
Add ble_conn_state_on_ble_evt and ble_cts_c_on_ble_evt in my ble_evt_dispatch
Finally the on_cts_c_evt().

I debug the example ble_app_cts_c and i see that after the connection softdevice send event BLE_GATTC_EVT_CHAR_DISC_RSP to db_discovery_on_ble_evt. The problem is that MY progect this events not oocurs... And i don't know why. It's not clear how the sfotdevice send a events that are processed from ble_evt_dispatch...

One different from my project and ble_app_cts_c is that i use a peer manager and in the example use a device_manager_init.

Thank you, Anna

RE: Add CTS current time service

FormerMember — Fri, 24 Jun 2016 05:37:33 GMT

In general, when adding a service, what you need to add is everything that is specific for that service. From looking at ble_app_cts_c, it should a least be the following:

Services_init()
The discovery module:
db_discovery_init()
db_disc_handler(..)
ble_db_discovery_on_ble_evt(..): should be added in ble_evt_dispatch(..)
ble_cts_c_on_ble_evt(..): should bed added in ble_evt_dispatch(..)
on_cts_c_evt() :

Functions that you may consider to take a look at:

on_ble_evt(..)
current_time_print()

Let me know if it still doesn't work after adding everything from the above list.

RE: Add CTS current time service

annapalu — Thu, 23 Jun 2016 13:13:17 GMT

I don't understand if it's necessary to add a characteristics gatt or not. Because in the example don't use it. Also, i use a peer manager for the connection and not device_manager. Regards.