JPS6470835A - Operation of firmware evaluation system - Google Patents

Operation of firmware evaluation system

Info

Publication number
JPS6470835A
JPS6470835A JP62227821A JP22782187A JPS6470835A JP S6470835 A JPS6470835 A JP S6470835A JP 62227821 A JP62227821 A JP 62227821A JP 22782187 A JP22782187 A JP 22782187A JP S6470835 A JPS6470835 A JP S6470835A
Authority
JP
Japan
Prior art keywords
firmware
duplicated
preparatory
rom
rapidly
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
JP62227821A
Other languages
Japanese (ja)
Inventor
Akiyuki Goto
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62227821A priority Critical patent/JPS6470835A/en
Publication of JPS6470835A publication Critical patent/JPS6470835A/en
Pending legal-status Critical Current

Links

Landscapes

  • Hardware Redundancy (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

PURPOSE:To rapidly and easily evaluate the operation of firmware by using an I/O device connected to a central control device to substitute a readable/ writable memory for either one of read-only memories (ROMs) in a duplicated system. CONSTITUTION:A system control circuit (P-CTL) 17 is connected in substitution for a ROM(1) 11b stored in a firmware of a duplicated device in a preparatory system, contents stored in a ROM(0) 11a in a driving system is transferred to a RAM 171 in a control circuit of the preparatory system on the basis of an I/O instruction from the central control device, duplicated devices in both the preparatory system and driving system are switch to each other, and in the duplicated device of the new driving system, at least the normality of the firmware is evaluated by said I/O instruction. Thus, the operation of the firmware can be rapidly and easily evaluated.
JP62227821A 1987-09-11 1987-09-11 Operation of firmware evaluation system Pending JPS6470835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62227821A JPS6470835A (en) 1987-09-11 1987-09-11 Operation of firmware evaluation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62227821A JPS6470835A (en) 1987-09-11 1987-09-11 Operation of firmware evaluation system

Publications (1)

Publication Number Publication Date
JPS6470835A true JPS6470835A (en) 1989-03-16

Family

ID=16866903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62227821A Pending JPS6470835A (en) 1987-09-11 1987-09-11 Operation of firmware evaluation system

Country Status (1)

Country Link
JP (1) JPS6470835A (en)

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