SDK_ERROR observed

[sa.qw]

Hi Team,

I'm developing a custom app, based on the ble_app_uart.

I'm observing a error : SDK_ERROR (NRF_FAULT_ID_SDK_ERROR).

I'm unable to root cause it and also unable to get any information about this error.

I even though got the error details connecting the debugger.

Can you please share some insight about this crash/error. It will help to debug further the issue.

I understand the 

Below are error details (taken from function app_error_save_and_stop()):-

[Vidar Berg]

Hello,

Please right click on the 'p_file_name' variable highlighted below and select 'string'. The value field will then display the file path to the file where the code assert was raised. The error occurred at line 1213 (0x4bd) in this file, and the error code was 0x11 (NRF_ERROR_BUSY).

Best regards,

Vidar

[sa.qw]

Thank You Vidar.

I was able to see it by checking the memory address, but this approach is even better.

Also, Vidar can you help me to generate disassembly file (*.dis) in Segger Embedded Studio which will help to to debug & view the complete code in disassembly.

I know that the --disassemble, can be used to generate the disassembly but i didnt get the option/place to add this and i guess the Segger Embedded Studio must already have the feature to generate it.

[sa.qw]

Hi Vidar,

Ok, let me try.

In the mean time I encountered another issue with ble_app_uart application.

I didnt perform any change to the sdk or application, & flashed pca10040e project to nRF52832 ( I believe this is do-able ).

The application crashes after ~3mins. Below is the crash details.

[Vidar Berg]

Hi,

This is as expected. The example is configured to enter System OFF (deep sleep) after 3 minutes of inactivity, which is not possible to do when the chip is in debug interface mode. If you disconnect the debugger the chip will power down after 3 minutes.

[sa.qw]

Hi Vidar,

Thank You for the information.

I would like to know is the dfu/secure_bootloader is mandatory to perform the DFU over BLE ?

From multiple forums I realized that its is required but i guess the DFU over BLE can work even without dfu/secure_bootloader. 

[Vidar Berg]

Hi,

Yes, you need a bootloader to support DFU.

[sa.qw]

Hi Vidar,

Is the dfu/secure_bootloader is the one that i must use to support DFU?