Hard Fault when advertising

[Sascha Schmidt]

Hi everyone,

I've gat a problem with advertising. I'm using above mentioned module and Eclipse with GCC compiler, SDK version 14.2.0.

I followed the advertising tutorial and when I run the code, I'm getting to hard fault state. I've read that the tutorial can't be used with the SDK version, so I don't have a clou what is wrong.

From the ble_advertising_init function I get the error code 12, which means NRF_ERROR_DATA_SIZE, but I don't know what's wrong. Did anyone have the same problem or can help?

Thanks in advance!!!

Kind regards

Sascha

[Bastien Reynard]

Also make sure you are not exceeding the maximum 31 bytes of data you can put in your advertising packet.

 * @retval NRF_ERROR_DATA_SIZE     If the operation failed because not all the requested data could fit into the
 *                                 advertising packet.

[Sascha Schmidt]

Is there a possibility to check how big my advertising data is right now?

Background of all this is that I want to publish a own service during advertising so the connected device knows what service are available from my device.

Thanks for your answers!!

[Sascha Schmidt]

Can you give me an example how to get the 128bit uuid into the scan response data. I'm using the init struct from the ble_peripheral_template and it only can hold 16bit UUIDs.

[Bastien Reynard]

If I'm not mistaken, this is done in the ble_app_uart Nordic example.

[Bastien Reynard]

You can check this thread.

[Sascha Schmidt]

As far as I understood that I have to define the UUID Type to _VENDOR_BEGIN (that's the way it is in uart example). When I do that to my UUID the ble_advdata_encode function in ble_advdata_set function is returning error code 7 (NRF_ERROR_INVALID_PARAM). I don't know what's wrong?? Any other suggestion where I can have a look?

[Sascha Schmidt]

I've found the issue!! In the ble_app_template example is advertising_init function called before service_init function. That causes, that the softdevice doesn't know my UUID and can't encode it, when I change service and advertising_init function, the complete 128bit UUID is advertised.

Thanks for all your help anyways!!!