JPS6412365A - Interface device - Google Patents

Interface device

Info

Publication number
JPS6412365A
JPS6412365A JP16685787A JP16685787A JPS6412365A JP S6412365 A JPS6412365 A JP S6412365A JP 16685787 A JP16685787 A JP 16685787A JP 16685787 A JP16685787 A JP 16685787A JP S6412365 A JPS6412365 A JP S6412365A
Authority
JP
Japan
Prior art keywords
data
response
command data
control part
reads out
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
JP16685787A
Other languages
Japanese (ja)
Inventor
Tatsuo Takaoka
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16685787A priority Critical patent/JPS6412365A/en
Publication of JPS6412365A publication Critical patent/JPS6412365A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To detect the abnormality of a slave controller by a main controller, by re-sending command data when no slave CPU reads out the command data, and informing the generation of an error to a main CPU when the above re-sending is repeated for a prescribed number of times or when response data is not normal. CONSTITUTION:Firstly, a system control part 1 writes the command data on a command register 41. Next, the normality of response is checked if the response data is stored in a response register 42, and when the abnormality exists in the response, corresponding error data is set, and an operation is returned to a main routine. Also, when no plotter control part 2 reads out the command data within a limited time, the command data is re-sent. And when no plotter control part 2 reads out the command data even if (n) times of resending is repeated, error data is set, and the operation is returned to the main routine.
JP16685787A 1987-07-06 1987-07-06 Interface device Pending JPS6412365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16685787A JPS6412365A (en) 1987-07-06 1987-07-06 Interface device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16685787A JPS6412365A (en) 1987-07-06 1987-07-06 Interface device

Publications (1)

Publication Number Publication Date
JPS6412365A true JPS6412365A (en) 1989-01-17

Family

ID=15838931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16685787A Pending JPS6412365A (en) 1987-07-06 1987-07-06 Interface device

Country Status (1)

Country Link
JP (1) JPS6412365A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012216190A (en) * 2011-03-31 2012-11-08 Denso Corp System and method for controlling traffic of messages between two processors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012216190A (en) * 2011-03-31 2012-11-08 Denso Corp System and method for controlling traffic of messages between two processors

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