Discovering a VS UUID Characterisic, but it shows UUID as 0

[Dresse]

Hi,

I am running SDK15, and using the example ble_app_interactive in ble_central and peripheral. I am trying to discover services and characteristic from a peripheral device, using NRF52 DK as a central device. There is a lot of services and VS services and characteristic in the peripheral. I can discover the services, and see the VS UUID services. As seen on picture:

But when i try to discover the characteristics in the VS services, it writes out the UUID as 0. I have also made it print out it handles and it does have it's handles Both things is shown in pictures below.

The UUID is 0. This is by using gatt characteristics <address> 2EAF.

If i then try to write gatt characteristics <address> AE62. I still don't get UUID, but my progam also crashes and gives me error code 11, but this is in the CCCD descriptor, as seen on picture:

I have made extra logging. I have also increased NRF_SDH_BLE_VS_UUID_COUNT in sdk_config. I have also increased my maximum characterstics and services. Hope you can help.

Regards Andreas 

[Hannu Hirvonen]

Hello Dresse and Hung,

I'm fighting also with same kind of issue. Is this possible to somehow get this correction, so that I don't need to do same things again which has already done (by Dresse). 

-Hannu-

[Dresse]

Hi Hannu. My complete solution contains all different kinds of modifications, and some classified information, but I have described above, what is needed. If you read all the replies in this post, you should know what to do. 

[Hannu Hirvonen]

Hello,

So I have to first study how this example project should work or works. Then have to come back and try to do same modifications that you have already done. It would be nice if somebody commits these changes to Nordics official example path and then deliver changes in next release version. Otherwise many of us waste time for investigating already solved problem.

[Dresse]

These projects are just example projects, and therefore you should study how these projects work even before going to these forums. Many of these problem are specific to the devices used in that project.

If you were to read the responses to this post, I even uploaded the specific code which solves this problem for my code.

Also if you want more specific answers, you need to write a lot more information about your problem. I suggest you create a new post with the specific problem you have encountered.

[Hannu Hirvonen]

Hello,

I understood so, that you found some mistakes from example project at general and solved it. I followed instructions and played little bit scanning, advertising and so on and after a while scanning didn't work at all. So if example projects doesn't work smoothly then (my opinion) these have to correct. I have seen earlier that when scanning, connecting etc. and try to scan again it doesn't work as expected and I have lost lot of time for investigating how to correct it.