Regarding current time service

[swathi p]

Hi,

I tried testing Current time service example provided in examples of SDK 15.3.0.The things I have noticed were

1)From Apple mobile it is able to discover current time service after getting connect,paired and disconnected and in between the proccess I was able to see some error messages too.Can you please let me know reason for those error messages and how to rectify them and also please let me now the reason why it has to go through connecting,disconnecting and pairing several times before discovering services.The below attached is the log info while testing on Apple mobile

2)From Android mobile it was not discovering service even after connecting several times as done in Apple mobile.The below capture contains log messages while testing CTS with Android mobile.

Please let me know whether I have to delete any bond information?and every time it is advertising erase bonds is being used and I also tried deleting bond information on nRF connect mobile application too.

[Amanda Hsieh]

Hi, 

4102 is the same as PM_CONN_SEC_ERROR_PIN_OR_KEY_MISSING. It means that encryption failed because the peripheral has lost the LTK for this bond. As indicated in this post, try to remove the bond on both sides of the link, and bond again.

-Amanda H.

[swathi p]

can you please let me know where exactly I can delete these bonds?

On mobile first thing it is not at all getting bonded and In nrf52832 advertising_start() delete bonds function is called.

is that about these ways of deleting bond information mentioned by the post?If not,what is the way to delete bond information on link?

Thanks & Regards,

Swathi P

[Amanda Hsieh]

You have to delete bond info on both sides (phone and nrf52832). On the phone, you have to go to Settings => Bluetooth, and looking for the nRF Device. Then go to "Forget this device" or delete this device's information. For the nRF device, you erase the kit as the link.

-Amanda H. 

[swathi p]

The scenario required in my project is that If suppose a device got connected to the mobile and if I choose to disconnect and delete the bonding from mobile then it has to delete the bond on nrf52832 too.Is there any possibility to delete the bond automatically on device when we choose to delete the bond on mobile.For this purpose In our application it is not possible to erase the kit whenever we need to delete the bond.Can you please suggest me any other possible way?

Thanks & Regards,

Swathi P

[Amanda Hsieh]

Hi Swathi, 

Another way is as advertising_start() deletes bonds after if the clear bonding button (button 2) was pressed to wake the application. 

-Amanda H. 

[swathi p]

Hi,

The below attached are the log info when tried connecting using android mobile.I was unable to discover current time service.

The highlighted one is the log info when button2 was pressed.

Using apple mobile for the first time I could see some system reset and when I try to reconnect It is discovering the service.Can I know why is it so facing problem for the first time connection.The below is the log info

And when disconnected from mobile it is not getting disconnected,it is getting diconnected only when bluetooth is turned off.

Please let me know how to get in flow with current time service.I am stuck with above conflicts.

Thanks & Regards,

Swathi P

[Amanda Hsieh]

Hi swathi, 

In the Current Time Application, you have to test with nRF Connect for Desktop by performing the following steps:

1. Compile and download the application. Observe that the BSP_INDICATE_ADVERTISING state is indicated.
2. In nRF Connect, create the Current Time Service (CTS) server by performing the following steps:
   1. In Server Setup, click the settings button and select "Load setup".
   2. In the resulting window, navigate to the <InstallFolder>\examples\ble_peripheral\ble_app_cts_c folder. Load the file cts_central.ncs.
   3. Click "Apply to device" and navigate back to Connection Map.

Please see the Testing for the detail. 

-Amanda H.

[swathi p]

Hi,

I have set server setup on mobile.Can you please let me know  in cts_central.ncs "uuid":"2A00","name":"Device Name","value":[110,82,70,53,117] .while iam setting characteristics,I have three ways to give value one is empty,and one is some text and the other is hex value.Among this three tabs where I have to give this value mentioned above.Similarly there is value for peripheral preffered connection parameters. 

I gave a try giving empty value and gave a try giving 110827053117 in text tab,and also gave a try giving value in hexadecimal format tab.

But I have a log error that Current Time Service not found on server.

I guess only if gatt server is not configured properly this error is displayed.is it so?or are there any reasons?

But,error code 12805 is related to peer/bonding issue.

Now the issue is due to bonding or due to gatt configuration problem?

Below is the log info:

Here are the devzone related queries I went through to solve the issue

https://devzone.nordicsemi.com/f/nordic-q-a/46268/error-12804-multipheripheral-bonding-whitelist

https://devzone.nordicsemi.com/f/nordic-q-a/46341/call-to-softdevice-returns-illegal-error-code-0x3204-in-current-time-service-client

https://devzone.nordicsemi.com/f/nordic-q-a/37837/sdk15-paring-problem/145821#145821

but info in above link didn't work in my case.

Please check and let me know if Iam missing something.

Thanks & Regards,

Swathi P

[Amanda Hsieh]

Hi Swathi, 

swathi p said:

But I have a log error that Current Time Service not found on server.

Did you follow the Setup and Testing section of the Current Time Application Document? 

-Amanda H.