NCS how does MCU store data ?

[yoyou]

Hi,

NCS1.9.1,  VSCode,  nRF5340DK,  

Without external flash memory and not use mx25r6435f which on DK,

how does MCU store data (such as a series of serial numbers)?

and it need ensure that OTA update will not lose this data.

  

Best regards

[Einar Thorsrud]

Hi,

If you just want to store a few serial numbers that never change, you can put them in the UICR register. For more data or data that might need to be changed or updated I suggest you use NVS for persistent storage. This will get its own partition and the partition manager ensures that there is no overlap etc, so the data is safe even during OTA updates. This happens automatically during build.

[yoyou]

thank you