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WO2009016187A3 - Watchdog mechanism with fault recovery - Google Patents

Watchdog mechanism with fault recovery Download PDF

Info

Publication number
WO2009016187A3
WO2009016187A3 PCT/EP2008/059957 EP2008059957W WO2009016187A3 WO 2009016187 A3 WO2009016187 A3 WO 2009016187A3 EP 2008059957 W EP2008059957 W EP 2008059957W WO 2009016187 A3 WO2009016187 A3 WO 2009016187A3
Authority
WO
WIPO (PCT)
Prior art keywords
watchdog
escalation
events
level
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2008/059957
Other languages
French (fr)
Other versions
WO2009016187A2 (en
Inventor
Giuseppe Maimone
Rainer Troppman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Deutschland GmbH
Original Assignee
Texas Instruments Deutschland GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102007035586A external-priority patent/DE102007035586B4/en
Priority claimed from DE102007035584A external-priority patent/DE102007035584B4/en
Application filed by Texas Instruments Deutschland GmbH filed Critical Texas Instruments Deutschland GmbH
Priority to EP08786592A priority Critical patent/EP2176757A2/en
Publication of WO2009016187A2 publication Critical patent/WO2009016187A2/en
Publication of WO2009016187A3 publication Critical patent/WO2009016187A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • G06F11/0757—Error or fault detection not based on redundancy by exceeding limits by exceeding a time limit, i.e. time-out, e.g. watchdogs

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

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, and recovering in a recovering step back from any of the nx escalation levels to a previous level or mode, if a de-escalation condition is met. An electronic device embodiment includes a CPU and program instructions for carrying out the method.
PCT/EP2008/059957 2007-07-30 2008-07-29 Watchdog mechanism with fault recovery Ceased WO2009016187A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08786592A EP2176757A2 (en) 2007-07-30 2008-07-29 Watchdog mechanism with fault recovery

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE102007035586.8 2007-07-30
DE102007035586A DE102007035586B4 (en) 2007-07-30 2007-07-30 Watchdog device for monitoring an electronic system
DE102007035584.1 2007-07-30
DE102007035584A DE102007035584B4 (en) 2007-07-30 2007-07-30 Watchdog device for monitoring an electronic system
US1675207P 2007-12-26 2007-12-26
US1675107P 2007-12-26 2007-12-26
US61/016,752 2007-12-26
US61/016,751 2007-12-26

Publications (2)

Publication Number Publication Date
WO2009016187A2 WO2009016187A2 (en) 2009-02-05
WO2009016187A3 true WO2009016187A3 (en) 2009-04-30

Family

ID=40219984

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/059957 Ceased WO2009016187A2 (en) 2007-07-30 2008-07-29 Watchdog mechanism with fault recovery

Country Status (2)

Country Link
EP (1) EP2176757A2 (en)
WO (1) WO2009016187A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120540907B (en) * 2025-07-29 2025-11-18 深圳市丰润达科技有限公司 Watchdog reset methods, devices, equipment, and storage media

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291403A (en) * 1979-05-22 1981-09-22 Rockwell International Corporation Digital implementation of parity monitor and alarm
WO1985002042A1 (en) * 1983-10-27 1985-05-09 Sundstrand Corporation Fault tolerant controller
US6061810A (en) * 1994-09-09 2000-05-09 Compaq Computer Corporation Computer system with error handling before reset
US20030028680A1 (en) * 2001-06-26 2003-02-06 Frank Jin Application manager for a content delivery system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7409594B2 (en) * 2004-07-06 2008-08-05 Intel Corporation System and method to detect errors and predict potential failures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291403A (en) * 1979-05-22 1981-09-22 Rockwell International Corporation Digital implementation of parity monitor and alarm
WO1985002042A1 (en) * 1983-10-27 1985-05-09 Sundstrand Corporation Fault tolerant controller
US6061810A (en) * 1994-09-09 2000-05-09 Compaq Computer Corporation Computer system with error handling before reset
US20030028680A1 (en) * 2001-06-26 2003-02-06 Frank Jin Application manager for a content delivery system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MURPHY, N: "Watchdog timers", EE TIMES-INDIA, vol. -, no. -, November 2000 (2000-11-01), pages 1 - 5, XP002515047, Retrieved from the Internet <URL:http://www.eetindia.co.in/STATIC/PDF/200011/EEIOL_2000NOV04_EMS_TEST_INTD_TA.pdf?SOURCES=DOWNLOAD> *
See also references of EP2176757A2 *

Also Published As

Publication number Publication date
WO2009016187A2 (en) 2009-02-05
EP2176757A2 (en) 2010-04-21

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