Using sd_softdevice_vector_table_base_set in custom bootloader

[anusha_14]

Hello Nordic team,

I am working on a BLE application that has custom bootloader and application firmware. I have added BLE functionality to the application firmware and it works fine. My bootloader does not have BLE functionality. Now, I am modifying bootloader code to include this function sd_softdevice_vector_table_base_set to set the address of application firmware. I would like to know if this function requires softdevice to be enabled. If not, what are the minimum files to be included so that the function sd_sotftdevice_vector_table_base_set  compiles. Currently, I have included files nrf_sdm.h and nrf_sdh.h in my bootloader project but build does not succeed as it gives the error: 'undefined reference to sd_softdevice_vector_table_base_set'

Regards,

Anusha

[Susheel Nuguru]

sd_sotftdevice_vector_table_base_set   does not need the softdevice to be enabled. So all you need is the header file components\softdevice\s140\headers\nrf_sdm.h included in your project path. Nothing else since this is an SVC call. Make sure that the nrf_sdm.h file is in the compiler visible path and is included in your .c file.

[anusha_14]

Hi Susheel,

Thanks for your response. I have already included the path components\softdevice\s140\headers in project path and included 'nrf_sdm.h' in main.c and called the function sd_sotftdevice_vector_table_base_set  from main(). But I still get the error 'undefined reference to sd_softdevice_vector_table_base_set'.

Regards,

Anusha

[Susheel Nuguru]

that is very strange, can you attach your project for me to test? 

[anusha_14]

Hi Susheel,

I was able to resolve the issue. The problem was that nrf_sdm.h from components/drivers/nrf_soc_nosd was also included in my project path and was placed before the path components/softdevice/s140/headers. On moving the path components/drivers/nrf_soc_nosd below the one of the softdevice, the build worked.

Regards,

Anusha

[Susheel Nuguru]

Thanks Anusha,

Great to know that it worked and thanks for coming back here to describe the changes you needed to make it work. This will help others who stumble upon the same issue.