memory overflow with DFU bootloader example

[Arthur]

Hi ! I'm working with the pca10040 and nRF5_SDK_11.0.0_89a8197. I tried to run the DFU bootloader example with SEGGER Embedded Studio 2.2 (following this tutorial).

I have this error :

1> Building ‘nrf52832_xxaa_s132’ from solution ‘dfu_dual_bank_ble_s132_pca10040’ in configuration ‘Debug’ 1> Generating linker script nrf52832_xxaa_s132.ld
1> Linking nrf52832_xxaa_s132.elf
1> C:/Program Files (x86)/SEGGER/SEGGER Embedded Studio 2.20/gcc/arm-none-eabi/bin/ld: Output/Debug/Exe/nrf52832_xxaa_s132.elf section .noinit' will not fit in regionUNPLACED_SECTIONS'
1> C:/Program Files (x86)/SEGGER/SEGGER Embedded Studio 2.20/gcc/arm-none-eabi/bin/ld: region `UNPLACED_SECTIONS' overflowed by 4161 bytes Build failed

I dont know how to fix this, any idea ?

Best regards, Arthur

[Vladimir]

Actually, to made bootloader work with segger embedded studio is not that easy. First of all you have to understand how do sections work. To begin with I recommend to read about it here:

www.rowleydownload.co.uk/.../index.htm

www.rowleydownload.co.uk/.../index.htm

www.rowleydownload.co.uk/.../index.htm

After that - dfu example uses sections for fstorage and uicr.

Here you can read how to setup your project for using fstorage: devzone.nordicsemi.com/.../

And here for uicr: devzone.nordicsemi.com/.../

[Arthur]

I added :

<ProgramSection alignment="4" load="Yes" name=".noinit" />
<ProgramSection alignment="4" load="Yes" name=".bootloaderSettings" />

in flash_placement.xml and it compile fine now (flash segment). thanks !