Questions: External Flash required for Matter?

[Kenta]

Hello.

I am trying to use nRF Connect SDK v2.8.0 and nRF52840 to run Matter's Light Switch and Light Bulb.

I was able to confirm that it works with nRF52840-DK, but it doesn't seem to work with nRF52840 evaluation boards that do not have an external Flash.

It worked with nRF Connect SDK v2.6.1.

If I use nRF Connect SDK v2.8.0, is it possible to run it with just the internal Flash?

I tried writing

CONFIG_CHIP_QSPI_NOR=n
CONFIG_CHIP_OTA_REQUESTOR=n
CONFIG_SIZE_OPTIMIZATION=y

in prj.conf, but it didn't work.

Best regards.

[AHaug]

Hi,

For Matter DFU is mandatory, and unfortunately it is not possible to fit DFU within the internal flash on the nRF52840.

Let me know if this answers your question

Kind regards,
Andreas