SDK 12.2 dual bank DFU

[Lezto22]

Hi all, Is there any DFU example using dual bank to the SDK 12.2? The secure bootloader example is for single or dual bank? . Sorry for the question it is no clear to me.

Thanks

[Hung Bui]

Please have a look here.

Quoted:

All firmware updates are performed as dual-bank updates, if possible. However, if the new image (SoftDevice, SoftDevice and bootloader, or application) is larger than the available space, the application is deleted to make room for the firmware image, and a single-bank update is performed.

For safety reasons, you can disable single-bank updates in the DFU configuration (see nrf_dfu_find_cache). However, disabling single-bank updates will limit the size of what can be updated to the free pages between the application and the reserved application data.