1984-02-01

Implementation of an Electronic NVM Odometer 840319

The 1984 Continental Mark VII electronic instrument cluster is reviewed with emphasis on the software algorithm used to store the odometer value in the non-volatile memory. The algorithm, through the use of multiple storage locations, parity checks, and relationship checks, increases the integrity and reliability of the non-volatile memory and minimizes the loss of distance associated with partial memory failures. The criteria and rationale used to develop the algorithm is discussed along with a brief description of the operation of the algorithm.

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