Problem Occuring when Adding Serial UART service to Bootloader

[Naveenkumar]

I am trying add UART functionality in nRF5_SDK_11.0.0_89a8197\examples\dfu\bootloader.

After adding all required files and compiling program I am getting following error

..\_build\nrf52832_xxaa_s132.axf: Error: L6985E: Unable to automatically place AT section bootloader_settings.o(.ARM.__AT_0x0007E000) with required base address 0x0007e000. Please manually place in the scatter file using the --no_autoat option.
Not enough information to produce a FEEDBACK file.
Not enough information to list image symbols.

I am using nRF52832 board, sdk 11.

IDE: Keil Uvision 5

[Simonr]

Hi Naveen

Is there a reason you are using SDK 11.0? This is a rather old SDK, and in newer versions we have working dfu examples using UART to bootloader. I suggest you use SDK 15.3 (newest version) and use this example: ...\nRF5_SDK_15.3.0_59ac345\nRF5_SDK_15.3.0_59ac345\examples\dfu\secure_bootloader\pca10056_uart

Best regards,

Simon