Changing bootloader size OTA

[ned_zeppelin]

Hi,

If the bootloader is allocated 16 kB of flash, can it be upgraded Over-The-Air to a larger size bootloader at a later point, or does that require flashing the device?

The bootloade is the S110 dual bank bootloader example from SDK 8.1.0 with some minor modifications.

[Hung Bui]

@ned : When booting up the MBR will read the UICR bootloader address register (BOOTLOADERADDR) and forward the interrupt vector table there. So it's not possible to change the start address of the bootloader once it's written to UICR. If you plan to expand your bootloader size please reserve some headroom for the bootloader from the begining.