how to set the RAM start sddress of app and bootloader

[piepie]

I am working on OTA DFU about nRF52810. My refernece project are ble_app_uart\pca10040\s132 and bootloader_secure_ble\pca10040 I find that the RAM start address between are different. This is the start RAM address of APP:

This is the start RAM address of bootloader:

I am confusing why they are different? Is there anything I ignored? I am using SDK_14.0.0. How should I set the RAM start sddress of APP and bootloader? thx.

[Stayhungry]

HI,piepie,

I'm doing something like you. But there is a place plagued me, nrf52810 the flash enough?

s132: 140kB

bootloader: 28KB (24KB dfu bootloader + 4kB bootloader setting)

ble_app_uart: 25KB

total:140+28+25 > 192KB

Do OTA also need double the app space, how do you solve this problem?

[Stayhungry]

Thanks，Hung Bui.

Where can I find the legacy bootloader information?

If I use single bank update, it means that the risk of damage to the firmware in the DFU process is considered?

How to calculate the APP space is 36KB? 192 (flash size) - 140 (softdevice) - 12 (legacy bootloader) - 4 (bootloader setting) = 36KB?