JPS57123456A - Restarting system of microprocessor - Google Patents

Restarting system of microprocessor

Info

Publication number
JPS57123456A
JPS57123456A JP56008889A JP888981A JPS57123456A JP S57123456 A JPS57123456 A JP S57123456A JP 56008889 A JP56008889 A JP 56008889A JP 888981 A JP888981 A JP 888981A JP S57123456 A JPS57123456 A JP S57123456A
Authority
JP
Japan
Prior art keywords
rise
pulse
timer
microprocessor
dlt
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.)
Granted
Application number
JP56008889A
Other languages
Japanese (ja)
Other versions
JPS626262B2 (en
Inventor
Kiyohiro Yamazaki
Kazuhisa Yoshimura
Hidetoshi Amari
Shinzo Tsurumaki
Yoshihiko Taniguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP56008889A priority Critical patent/JPS57123456A/en
Publication of JPS57123456A publication Critical patent/JPS57123456A/en
Publication of JPS626262B2 publication Critical patent/JPS626262B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F11/14—Error detection or correction of the data by redundancy in operation

Landscapes

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

Abstract

PURPOSE:To realize a restart in a short time, by making an effective use of the output of a watchdog timer in case of occurrence of runaway of a program due to a slight fault of a device. CONSTITUTION:A microprocessor reset signal (f) or an alarm signal is supplied (a) to the terminal B of a delay timer DLT. Th timer DLT has a rise in 200 milliseconds for example later than the rise time of an input pulse to obtain a pulse and then to produce a differentiated signal. In case the operation has a fault and the output (d) continues, a processor reset pulse is produced in 200 seconds after the rise for example. This reset pulse is fed back again to apply a restart.
JP56008889A 1981-01-23 1981-01-23 Restarting system of microprocessor Granted JPS57123456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56008889A JPS57123456A (en) 1981-01-23 1981-01-23 Restarting system of microprocessor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56008889A JPS57123456A (en) 1981-01-23 1981-01-23 Restarting system of microprocessor

Publications (2)

Publication Number Publication Date
JPS57123456A true JPS57123456A (en) 1982-07-31
JPS626262B2 JPS626262B2 (en) 1987-02-09

Family

ID=11705235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56008889A Granted JPS57123456A (en) 1981-01-23 1981-01-23 Restarting system of microprocessor

Country Status (1)

Country Link
JP (1) JPS57123456A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146349A (en) * 1983-02-09 1984-08-22 Kubota Ltd Automatic reset system of microcomputer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10605573B2 (en) 2016-04-15 2020-03-31 Honeywell International Inc. High buoyancy composite materials

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442952A (en) * 1978-07-06 1979-04-05 Toshiba Corp Control device for power source fault in information process system
JPS5557956A (en) * 1978-10-25 1980-04-30 Nissan Motor Co Ltd Malfunction prevention unit of microcomputer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5442952A (en) * 1978-07-06 1979-04-05 Toshiba Corp Control device for power source fault in information process system
JPS5557956A (en) * 1978-10-25 1980-04-30 Nissan Motor Co Ltd Malfunction prevention unit of microcomputer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59146349A (en) * 1983-02-09 1984-08-22 Kubota Ltd Automatic reset system of microcomputer

Also Published As

Publication number Publication date
JPS626262B2 (en) 1987-02-09

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