JPS577690A - Initial program loading system - Google Patents

Initial program loading system

Info

Publication number
JPS577690A
JPS577690A JP8017780A JP8017780A JPS577690A JP S577690 A JPS577690 A JP S577690A JP 8017780 A JP8017780 A JP 8017780A JP 8017780 A JP8017780 A JP 8017780A JP S577690 A JPS577690 A JP S577690A
Authority
JP
Japan
Prior art keywords
program
loading
circuit
reading
storage
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.)
Pending
Application number
JP8017780A
Other languages
Japanese (ja)
Inventor
Koshu Yoshizaki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8017780A priority Critical patent/JPS577690A/en
Publication of JPS577690A publication Critical patent/JPS577690A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54508—Configuration, initialisation
    • H04Q3/54516—Initialization, software or data downloading
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1305—Software aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13109—Initializing, personal profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13376—Information service, downloading of information, 0800/0900 services

Abstract

PURPOSE:To perform initial program loading with high reliability by discriminating whether initial program loading by the reading and storage of one of doubled external storage device is done normal, and by performing the reading and storage of the other when the loading is abnormal. CONSTITUTION:The program starting circuit 1A of a processor 1 sends a program read instruction regarding initial program loading to a program reading circuit 1B. On receiving it, the program reading circuit 1B sends a program loading instruction to an external storage control circuit 4 via one bus 3 to read a bootstrap stored in a different storage area of an external storage device 5, and it is stored in a main storage device 2. Simultaneously, a program discriminating circuit 1C discriminates whether the storage in the device is normal or not. When not, the other bootstrap is read again.
JP8017780A 1980-06-16 1980-06-16 Initial program loading system Pending JPS577690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8017780A JPS577690A (en) 1980-06-16 1980-06-16 Initial program loading system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8017780A JPS577690A (en) 1980-06-16 1980-06-16 Initial program loading system

Publications (1)

Publication Number Publication Date
JPS577690A true JPS577690A (en) 1982-01-14

Family

ID=13711063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8017780A Pending JPS577690A (en) 1980-06-16 1980-06-16 Initial program loading system

Country Status (1)

Country Link
JP (1) JPS577690A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033647A (en) * 1983-08-05 1985-02-21 Nippon Telegr & Teleph Corp <Ntt> Backup file transferring system
JPS61228797A (en) * 1985-04-03 1986-10-11 Nec Corp Electronic key telephone set
JPS63178357A (en) * 1987-01-20 1988-07-22 Fujitsu Ltd System starting-up method for computer system
JPH02159654A (en) * 1988-12-13 1990-06-19 Nec Corp Program restarting system
JPH05127834A (en) * 1991-10-30 1993-05-25 Hitachi Telecom Technol Ltd Method for avoiding error when starting system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5475912A (en) * 1977-11-30 1979-06-18 Fujitsu Ltd System starting mechanism for electric exchange

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5475912A (en) * 1977-11-30 1979-06-18 Fujitsu Ltd System starting mechanism for electric exchange

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6033647A (en) * 1983-08-05 1985-02-21 Nippon Telegr & Teleph Corp <Ntt> Backup file transferring system
JPH049347B2 (en) * 1983-08-05 1992-02-19
JPS61228797A (en) * 1985-04-03 1986-10-11 Nec Corp Electronic key telephone set
JPS63178357A (en) * 1987-01-20 1988-07-22 Fujitsu Ltd System starting-up method for computer system
JPH02159654A (en) * 1988-12-13 1990-06-19 Nec Corp Program restarting system
JPH05127834A (en) * 1991-10-30 1993-05-25 Hitachi Telecom Technol Ltd Method for avoiding error when starting system

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