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!!

[karthikeyan]

hi,

  you can advertise your own data in advertising packet. take ble_app_beacon as a base example and try to build your own application ans also you can create own service and advertise its uuid too.

[Bastien Reynard]

So you probably want to advertise a 128 bit UUID, that's already 16 bytes. What you can do is put your custom UUID in the scan response and see if that works.

[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.