How to configure and use nRF9160DK external flash mx25r6435f

Hi,

I use the nRF9160dk and I want to use nRF9160's external flash mx25r6435f to store a few data.

There are few related posts from too many years ago. Could you provide a clear guideline to configure and use it?

board: nrf9160dk

SDK: v2.5.0

Thanks,

Liza

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