DFU update for nrf51422 multirole lesc

[Vimalnath]

Hi,

I am using sdk11 and nrf51422 device with s130 softdevice for ble_multilink_lesc example code. How do I add DFU service in the existing code? I have added DFU service for other peripheral examples. But here when I follow the same procedure, the device is not at all advertising(not seen in nrf connect mobile app).

[Jørgen Holmefjord]

Hi,

If it is not advertising, there is most likely an error reported, causing the device to reset. Have you tried following this debug-procedure to read out the error code, or see where the application crashes?

Best regards,
Jørgen

[Jørgen Holmefjord]

I believe that is the file you are currently in, not the file where the error occurred. What is the value of err_code and line_num in the m_error_data struct?

I do not have any examples of this available. If you can upload your application project, I can help you debug it.

[Jørgen Holmefjord]

Can you provide a sniffer trace of communication on-air between the phone and the nRF device? You can use the nRF Sniffer for Bluetooth LE for that.

[Vimalnath]

Yes, I'll try to provide the sniffer trace. But can you tell me why the application shows error in the dfu_app_dm_appl_instance_set function. If that error is taken cared off then it will be easy to understand the working of the code. Can you try to clear the error from your side?

[Jørgen Holmefjord]

I think you misunderstood my answer. You should not comment out the APP_ERROR_CHECK. The problem is caused by that you have commented out device_manager_init() in your code. I removed the comment on this function so it is called. This resolved the error in dfu_app_dm_appl_instance_set().

[Vimalnath]

Okay, Can you share your working code?

[Jørgen Holmefjord]

I literally just commented in line 1496 in main.c in the project you uploaded:

device_manager_init(erase_bonds);

Note that I did not test DFU functionality, only checked that no error is returned from dfu_app_dm_appl_instance_set().

I see that you have added peer_manager to your project, I guess this is why you removed the device_manager initialization? It may create some issues if you use both. It looks like device manager is used in the DFU functions that you are using. Any chance you can migrate the project to SDK 12.3.0, where the DFU libraries are updated and device manger is removed?

[Vimalnath]

I have done the same thing. I have uncommented the 'device_manager_init(erase_bonds)' function and there was no errors. But the DFU service is not working. If there is no error then why its not working properly?

[Jørgen Holmefjord]

A sniffer trace will possibly help determine why it fails.