| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that an NMI signal or a reset instruction signal is issued to a monitored system in a normal state and it interferes with system operation. SOLUTION: A system monitoring device comprises: a monitoring processor that includes a watchdog timer (WDT) and an instruction receiving part which receives a first reset timer instruction for instructing reset of the WDT and which outputs a reset timer signal to the WDT; an instruction transfer part that transfers the reset timer instruction, which is transmitted from a reset timer instruction issuing part included in a WDT watch list, to the instruction receiving part, as the first reset timer instruction, and that outputs first transfer failure information when detecting a failure in transmission of the first reset timer instruction; and a filter part that prohibits transmission of a time-out signal based on the first transfer failure information. COPYRIGHT: (C)2012,JPO&INPIT |
