Delphi Technologies, Inc.

Mary T Hedges

Kevin M Gertiser

Charles M Grimm

W James Allen

Larry D Burkholder

Roy M Fildes

Dale W Deutscher

Ben F Mc Cormick, Ii

An electronic control unit and a method of diagnosing an electronic control unit on a vehicle are provided. The method includes the steps of storing in memory information on variables to collect, selecting a trigger, monitoring for a predetermined event, activating the trigger based on the detection of the event, collecting the variables upon activation of the trigger, and storing the collected variables in memory. The collected variable may be read via a pre-existing production serial link to diagnose the electronic control unit.

Method of diagnosing an electronic control unit

A method for computer memory calibration includes flashing a calibration from a processor into two flash memory sections. Either the same or an alternate processor requests data stored in one of the flash memory sections. Subsequently, exception handler logic within an exception mechanism activates and generates an exception for the data stored in the aforementioned flash memory section. The calibration in the other flash memory section then transfers to the processor through the functioning of the exception.

Calibration method implementing segmented flash memory and RAM overlay

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Greentown, IN, United States of America

Mary T Hedges