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Per-unit calibration values are stored

  • A.on the test jig
  • B.in the product's documentation only
  • C.in the unit's own non-volatile memory
  • D.in the firmware image

Answer: C

The whole point is that the value differs from unit to unit, so it cannot live in the shared image, and the unit must carry it in order to work away from the factory. A protected region of flash or a small EEPROM is the usual home.

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