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UDMI / Docs / Specs / System Mode

System Mode

The system 'mode' controls the high-level operating mode of the entire system.

Restart Sequence

flowchart LR
  Z[[SYSTEM<br/>RESTART]]
  style Z fill:#f88
  A[DEVICE STATE<br/><code>system.mode = <i>initial</i></code>]
  B[DEVICE STATE<br/><code>system.mode = <i>active</i></code>]
  C[DEVICE STATE<br/><code>system.mode = <i>restart</i></code>]
  Z --> A
  A -- DEVICE CONFIG <br/><code>system.mode = active</code> --> B
  B -- DEVICE CONFIG <br/><code>system.mode = restart</code> --> C
  C --> Z
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Notes:

  • The active/restart config modes are explicitly to prevent restart loops.
  • Conceptually, restart could be other operating modes (e.g. shutdown).
  • Initial device would be undefined if capability is not supported (legacy).