JPS644855A - Communication method between microcomputers - Google Patents

Communication method between microcomputers

Info

Publication number
JPS644855A
JPS644855A JP16038787A JP16038787A JPS644855A JP S644855 A JPS644855 A JP S644855A JP 16038787 A JP16038787 A JP 16038787A JP 16038787 A JP16038787 A JP 16038787A JP S644855 A JPS644855 A JP S644855A
Authority
JP
Japan
Prior art keywords
request signal
transmission request
discrimination code
receiving side
party
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
JP16038787A
Other languages
Japanese (ja)
Inventor
Koichi Abe
Kazuo Nakadai
Toshiaki Fujimaki
Satoru Iwamatsu
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.)
Fujifilm Holdings Corp
Toshiba TEC Corp
Original Assignee
Fuji Photo Film Co Ltd
Tokyo Electric 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 Fuji Photo Film Co Ltd, Tokyo Electric Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP16038787A priority Critical patent/JPS644855A/en
Publication of JPS644855A publication Critical patent/JPS644855A/en
Pending legal-status Critical Current

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  • Multi Processors (AREA)

Abstract

PURPOSE:To prevent an error for a data processing by inputting a receiving side discrimination code to the inside of a serial buffer, and investigating whether a data in the serial buffer is a receiving side discrimination code or not after a microcomputer side which has outputted a transmitting request signal has been shifted by the number of unit bits. CONSTITUTION:When each microcomputer 8, 9 has become a receiving state by receiving a transmission request signal from the other party, a receiving side discrimination code which has been determined in advance is inputted to the inside of serial buffers 12, 13, and after the microcomputer side which has outputted the transmission request signal has been shifted by the number of unit bits, whether a data in the serial buffer is a receiving side discrimination code or not is investigated. In such a way, even if the transmission request signal is outputted simultaneously from both the microcomputers 8, 9, and it is misconceived that the transmission request signal from the other party is a receivable response signal, and the processing advances in such a way as both of them are transmission sides, whether the other party has received said signal or not can be confirmed, and an error for the data processing can be prevented.
JP16038787A 1987-06-26 1987-06-26 Communication method between microcomputers Pending JPS644855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16038787A JPS644855A (en) 1987-06-26 1987-06-26 Communication method between microcomputers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16038787A JPS644855A (en) 1987-06-26 1987-06-26 Communication method between microcomputers

Publications (1)

Publication Number Publication Date
JPS644855A true JPS644855A (en) 1989-01-10

Family

ID=15713861

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16038787A Pending JPS644855A (en) 1987-06-26 1987-06-26 Communication method between microcomputers

Country Status (1)

Country Link
JP (1) JPS644855A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007040169A (en) * 2005-08-03 2007-02-15 Yamaha Motor Co Ltd Engine, intake device provided on engine and vehicle equipped with engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007040169A (en) * 2005-08-03 2007-02-15 Yamaha Motor Co Ltd Engine, intake device provided on engine and vehicle equipped with engine

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