Question: Is OTA possible with nRF54L10?

[Kenta]

Hi.
I used nRF Connect SDK v2.9.1 to add OTA to the Peripheral UART sample application.
The target is nRF54L10, but when I build it, the flash usage exceeds 50%.

If the flash usage exceeds 50%, will OTA actually work?
Also, will an external flash be required?

Best regards.

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Build log.

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[365/372] Building C object zephyr/kernel/CMakeFiles/kernel.dir/dynamic_disabled.c.obj
[366/372] Linking C static library zephyr/kernel/libkernel.a
[367/372] Linking C executable zephyr/zephyr_pre0.elf
[368/372] Generating linker.cmd
[369/372] Generating isr_tables.c, isr_tables_vt.ld, isr_tables_swi.ld
[370/372] Building C object zephyr/CMakeFiles/zephyr_final.dir/misc/empty_file.c.obj
[371/372] Building C object zephyr/CMakeFiles/zephyr_final.dir/isr_tables.c.obj
[372/372] Linking C executable zephyr/zephyr.elf
Memory region Used Size Region Size %age Used
FLASH: 248688 B 482 KB 50.39%
RAM: 58460 B 192 KB 29.73%
IDT_LIST: 0 GB 32 KB 0.00%

[Vidar Berg]

Hi,

OTA DFU requires app to occupy less than this unless adding external flash is an option. Exactly how much will depend on the size of your bootloader. Please have a look this devacademy course for more details: https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-9-bootloaders-and-dfu-fota/topic/exercise-5-fota-over-bluetooth-low-energy/ 

Best regards,

Vidar