Invention Grant
- Patent Title: Watchdog mechanism with fault escalation
- Patent Title (中): 带有故障升级的看门狗机制
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Application No.: US12182868Application Date: 2008-07-30
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Publication No.: US07966528B2Publication Date: 2011-06-21
- Inventor: Rainer Troppmann , Giuseppe Maimone
- Applicant: Rainer Troppmann , Giuseppe Maimone
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent John J. Patti; Wade J. Brady, III; Frederick J. Telecky, Jr.
- Priority: DE102007035584 20070730
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A method for handling watchdog events of an electronic device includes detecting a watchdog fault in a normal mode, which is a watchdog event in which a watchdog trigger is not correctly serviced; entering from the normal mode into a first escalation level of nx escalation levels upon detection of the watchdog fault, wherein nx is an integer equal to or greater than 1; detecting correct watchdog events, which are watchdog events in which a watchdog trigger is correctly serviced; and concurrently detecting watchdog faults, leaving the first escalation level if a first escalation condition is met. An electronic device embodiment includes a CPU and program instructions for carrying out the method.
Public/Granted literature
- US20090037770A1 WATCHDOG MECHANISM WITH FAULT ESCALATION Public/Granted day:2009-02-05
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