How to add a different UUID128 for each characteristic?

[RTMerkel]

Howdy,

I'm porting a GATT profile from a different profile where the custom services characteristics and descriptors UUIDs are malformed. For example;

• 1st Custom Service: 477EA600-A260-11E4-AE37-0002A5D5-0001
• 1st Characteristic: 477EA600-A260-11E4-AE37-0002A5D5-4010
• 2nd Characteristic: 477EA600-A260-11E4-AE37-0002A5D5-4020
• ...

As you can see, the normal 32uuid/12uuid short-hands won't work; each service and characteristic and descriptor will require it's own 128uuid. Note that there is resistance to regenerating a base UUID and using 16uuids correctly, therefor I'm investigating what it will take to support the UUIDs above with S113 and nRF5_SDK v16.

I assume that to add the characteristics, I have to something like the following;

1. sd_ble_uuid_vs_add("477EA600-A260-11E4-AE37-0002A5D5-4010", &uuid.type);
2. uuid.uuid = 0xa600; sd_ble_gatts_service_add(..)
3. sd_ble_uuid_vs_add("477EA600-A260-11E4-AE37-0002A5D5-4020", &uuid.type);
4. uuid.uuid = 0xa600; sd_ble_gatts_service_add();
5. …

Questions:

• Is there a fixed, upper limit, to the number of 128uuids that can be stored by S113?
• Can S113 handle one 128uuid per custom service, characteristic and descriptor, all with the same 32uuid/16uuid?
• Is the method, outlined above, the way to do this?

Thanks,

[RTMerkel]

https://infocenter.nordicsemi.com/topic/sds_s113/SDS/s1xx/mem_usage/mem_usage.html seems to answer my first question.

[RTMerkel]

And https://devzone.nordicsemi.com/f/nordic-q-a/15208/characteristic-s-base-uuid-different-from-service-s-base-uuid seems to answer the other questions (I finally figure out the right Google search terms ;)