nrf52 KEIL's project create .elf with SEGGER, why?

[ndarkness]

Hello,

I am newbie with KEIL/SEGGER, I have been following this tutorial to compile the example experimental_ble_app_blinky_pca10040_s132 for my nrf52 chip, the project was imported from KEIL to SEGGER Embedded studio 3.12 and I am using nordic sdk12.2

I would like to compile a hex not for the softdevice itself, but for my real devie. So far, following the above tutorial has led me to create a binary, however I see that the binary that comes out is an .elf instead of a .hex, which I would expect. Is this normal or something is going wrong in with my compilation as I'm afraid of? Where can I set the option to create a .hex?

An screenshot of my current enviroment is this one, I have excluded from the build the arm_startup_nrf52.s since otherwise I get the error saying "startup_config.h not found" and I have added the macros for the memory mapping

Thanks in advance,

Best regards,

EDIT: following Sigurd link I could generate the HEX file, however when trying to run it or debug it I get a Unknown function at 0xFFFFFFFFE,which I cannot point it out where it comes. Any idea?

[Sigurd]

Hi,

See this answer on how to configure SES to generate a HEX file.

[ndarkness]

Hi Sigurd, thanks to your link I get now the .hex, however I cannot debug with it, I see in the debug terminal unknown function at 0xFFFFFFFFE, as I have updated in the main post, is this a wrong memory setup?

[Sigurd]

Hi, you need to flash the S132 SoftDevice.

[ndarkness]

Hi Sigurd, how do you mean by that? If i do flash the soft device the what happens to my code? I mean, I see the SoftDevice is located in a complete different folder than the hex generated by my compilation

[Sigurd]

S132 is the SoftDevice (Bluetooth stack) for the nRF52. The SoftDevice is placed at the bottom of the flash, while the application-code (your code in SES) is placed on top of the SoftDevice. For the BLE/S132 examples to be fully functional and with Bluetooth-support, you need to flash the S132 SoftDevice to your nRF52.