How to not use exteral flash?

[liisa]

Hi,the Nordic team.

     I am using nrf54L15 to develop Matter. I have seen that the official sample programs are all equipped with external flash. How can I run Matter programs without this external flash? The "template" I currently use.

[SwRa]

Hello,

On the nRF54L15, you can run Matter without external flash and use only the internal RRAM (flash) for both the running firmware and the new firmware image during Device Firmware Upgrade (DFU). This is explained here: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/samples/matter/template/README.html#matter_template_using_only_internal_memory 

Please also see check out this thread:  Do nRF54L15 Matter applications require external flash for OTA updates? 

Best Regards,

Swathy