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公开(公告)号:US5522040A
公开(公告)日:1996-05-28
申请号:US321866
申请日:1994-10-14
IPC分类号: G06F11/30 , G06F11/00 , G06F11/267
CPC分类号: G06F11/2215 , G06F11/0757
摘要: The invention relates to an arrangement for testing a watchdog circuit wherein the pulses of a microcomputer to be monitored by the watchdog circuit are incrementally lengthened until the watchdog circuit responds and emits a corresponding reset signal to the microcomputer. The operational test of the watchdog circuit is repeated after each cold start of the microcomputer. This arrangement is especially suited for systems relevant to safety wherein the functional reliability of the individual components such as microcomputer and actuating elements are to be monitored.
摘要翻译: 本发明涉及一种用于测试看门狗电路的装置,其中由看门狗电路监视的微型计算机的脉冲被递增地延长,直到看门狗电路响应并向微型计算机发出相应的复位信号。 在微型计算机冷启动后,重复看门狗电路的运行测试。 这种布置特别适用于与安全相关的系统,其中将监视诸如微型计算机和致动元件的各个部件的功能可靠性。