| 摘要 |
PROBLEM TO BE SOLVED: To prevent quality from degrading by adding new software to a part of software whose quality has been assured, when developing control software in a plurality of sections. SOLUTION: An access to a timer causing a response delay, addition of interruption response processing, or an access from the added software to input and output processing depending on state transition of a peripheral circuit is limited by eliminating an interface positioned between components affected by an access of an added component, out of the softwares for controlling each I/O, other than the interface for setting a final computation value or a target value. COPYRIGHT: (C)2009,JPO&INPIT
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