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How to utilize files system to save #BluetoothMesh's data on flash ?

As per this document ....

nrf5_SDK_for_Mesh_v1.0.1_src/doc/introduction/mesh_hw_resources.md

The mesh stack uses flash to store the following states:
- Encryption keys
- Mesh addresses
- Access model composition
- Access model configuration
- Network message sequence number
- Network IV index state
- DFU metadata

If I have file system to store these data, then how many files will required for it ?

For eg.

  1. prov.txt may save data during provisioning process.
  2. cfg.txt may save data during configuration process.

Unsolicited details will be appreciated !! :)

Thank You !!

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