发明名称 CONTROL DEVICE, FAILURE DETECTION AND RECOVERY METHOD THEREOF, AND ELECTRONIC APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide a control device which reliably recovers any of a plurality of processor cores where a failure occurs. SOLUTION: A sub-core 32 includes: a first operating state monitoring unit 53 which transmits a predetermined command to a main core 31 at predetermined transmission intervals to receive a response to it; a first failure determination unit 54 which determines that a failure has occurred in the main core 31 if no response is received within a predetermined response time; and a first reset instruction unit 55 which, if the occurrence of a failure is determined, issues an instruction for reset after recording an operation log on a nonvolatile memory 23. The main core 31 includes: a second operating state monitoring unit 64 which receives the predetermined command from the sub-core 32 to transmit a response to it; a second failure determination unit 65 which determines that a failure has occurred in the sub-core 32 if no next predetermined command is received within a predetermined reception time; and a second reset instruction unit 66 which, if the occurrence of a failure is determined, issues an instruction for reset after recording an operation log on the nonvolatile memory 23. COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011159136(A) 申请公布日期 2011.08.18
申请号 JP20100020809 申请日期 2010.02.02
申请人 SEIKO EPSON CORP 发明人 KIMURA TAMOTSU;TSURUMI YUTAKA;NEGISHI KEIKO;SHIBA SHOJI;NAGAOKA MINORU
分类号 G06F11/30;G06F11/34 主分类号 G06F11/30
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