| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an extremely safe driving motor controller capable of detecting abnormality in the interruption processing of a microcomputer. SOLUTION: In addition to conventional watchdog processing, the value of an interruption counter for storing the execution of interruption processing is increased at the end of interruption processing corresponding to an interruption factor, the value of the interruption counter is compared with a preceding value during the period of main processing independent of interruption or the like, and when the present value is equal to the preceding value the value of an updating counter for storing that the value of the interruption counter is not updated is increased. When the value, of the updating counter exceeds a determined value, no execution of interruption processing is judged.</p> |
