Need to change BOOTLOADER_SETTINGS_ADDRESS when changing BOOTLOADER_REGION_START

[Andreas]

Hello

I have some trouble with my DFU bootloader, because I changed the BOOTLOADER_REGION_START. This is, because I need some more space for bootloader.

Do I have to also change the BOOTLOADER_SETTINGS_ADDRESS?

So this are my current addresses:

#define BOOTLOADER_REGION_START         0x0003AC00
#define BOOTLOADER_SETTINGS_ADDRESS     0x0003E800

But, if I try to compile this, I get a linker error that the linker is unable to place the settings automatically with the required base address. I used the same offset between REGION_START and SETTINGS_ADDRESS as in the Nordic example (0x3C00). How can I get a working new SETTINGS_ADDRESS. Or do I even have to change the SETTINGS_ADDRESS?

Regards, BTprogrammer

[sidekick]

Did you made the corresponding changes in the Toolchain(KEIL, GCC) too ? If you are using KEIL MDK5, then you need to update IROM1 (option for target -> target). You can keep the IRAM1 as it is.

[sidekick]

Most of the bootloaders have similar design challenges and goals and all are based on In-Application programming (IAP) concept. I highly recommend you to go through Making Embedded Systems, chapter 7, by Elicia White to get an overview of the OTA process for embedded systems, something which I referred a month back while working on my masters thesis on OTA :)