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Clarify or remove stakeholder requirement "Synchronize the HW clock with Vehicle Time" #2865

@BjoernAtBosch

Description

@BjoernAtBosch

This stakeholder requirement (id stkh_req__time__hw_clock_sync) is at least unclear in its meaning.
Unclear regarding the term "local HW clock": Modern systems have multiple hw clocks. Which one is meant?

  • If the monotonic/steady clock of the CPU is meant, this requirement should be removed:

    • This clock should not be updated at all as it is typically used for measuring the time differences between two local events. Updates would invalidate those kind of measurements.
    • Furthermore (imho) this requirement would then be too specific on stakeholder level
  • Not sure about consequences if updating the HW clock of a network interface controller (NIC)

Further hint: The linked feature requirement was removed earlier, i.e. currently no linked requirements available.

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