With nRF5340 : How to use internal and external flash both as Littlefs to store data

[Siddharth Kachhia]

Hi All,

In nRF5340DK board, with ncs SDK(v1.9.1), we can use internal flash partition as Littlefs and store data into it. we are able to find sample demo for external flash as littlefs.

Now we want to add external Flash(MX25R64) and internal flash both as littlefs and use both to store data into it for different purpose.

Question:

1) Can we use both internal flash storage partition and external flash as littlefs to store data ?

2) Is there any demo sample which describes to configure and use internal and external flash both as littlefs ?

[Simonr]

Hi

Sorry for the late reply but we're understaffed during the summer vacation period in Norway I'm afraid. 

I think this is due to how your partitions are set up. When using external memory, etc. and multiple images you should first make sure that the MCUBoot is working, see the child images and static configurations section in the Partition Manager documentation.

Best regards,

Simon

[Siddharth Kachhia]

Hi

When we using external flash and multiple images , yes in that scenario MCUBoot is working.

But ,When we enable littlefs for both flash then MCUBoot is not working.

Also, we are using pm_static.yml for partition. you can see in our attached sample code.

If I miss something for partition manager I will see again and verify static configurations section in the Partition Manager documentation.

Thanks.