JPH0382440U - - Google Patents

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Publication number
JPH0382440U
JPH0382440U JP14308889U JP14308889U JPH0382440U JP H0382440 U JPH0382440 U JP H0382440U JP 14308889 U JP14308889 U JP 14308889U JP 14308889 U JP14308889 U JP 14308889U JP H0382440 U JPH0382440 U JP H0382440U
Authority
JP
Japan
Prior art keywords
dual port
port ram
writing
microcomputers
write completion
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
JP14308889U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP14308889U priority Critical patent/JPH0382440U/ja
Publication of JPH0382440U publication Critical patent/JPH0382440U/ja
Pending legal-status Critical Current

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Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案のクレーム対応図、第２図は本
考案の一実施例を示すシステム図、第３図及び第
４図は同上実施例の作用を説明するフローチヤー
トである。 １……メインＣＰＵ、２……サブＣＰＵ２、３
……Ｄ・Ｐ・ＲＡＭ。 FIG. 1 is a diagram corresponding to the claims of the present invention, FIG. 2 is a system diagram showing an embodiment of the present invention, and FIGS. 3 and 4 are flowcharts explaining the operation of the same embodiment. 1...Main CPU, 2...Sub CPU2, 3
...D.P.RAM.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２つのマイクロコンピユータ同士をリンクさせ
るデユアルポートＲＡＭの診断装置であつて、前
記２つのマイクロコンピユータ夫々に、所定値を
前記デユアルポートＲＡＭの全アドレスに書き込
む書込手段と、相手側のマイクロコンピユータに
書き込まれた内容を読み出しチエツクする読み出
しチエツク手段とを備える一方、各マイクロコン
ピユータが書き込みを完了したことを検出する書
込完了検出手段を設け、一方のマイクロコンピユ
ータが前記書込手段によりデユアルポートＲＡＭ
に書き込んだ内容を前記書込完了検出手段による
書込完了検出に基づいて他方のマイクロコンピユ
ータが読出チエツク手段により読み出しチエツク
する構成としたことを特徴とするデユアルポート
ＲＡＭの診断装置。 A diagnostic device for a dual port RAM that links two microcomputers, the device comprising: writing means for writing a predetermined value into all addresses of the dual port RAM in each of the two microcomputers; A write completion detecting means is provided for detecting that each microcomputer has completed writing, and one of the microcomputers uses the writing means to read and check the contents of the dual port RAM.
1. A diagnostic device for a dual port RAM, characterized in that the other microcomputer reads out and checks the contents written in the memory by means of a read check means based on the write completion detected by the write completion detecting means.
JP14308889U 1989-12-13 1989-12-13 Pending JPH0382440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14308889U JPH0382440U (en) 1989-12-13 1989-12-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14308889U JPH0382440U (en) 1989-12-13 1989-12-13

Publications (1)

Publication Number Publication Date
JPH0382440U true JPH0382440U (en) 1991-08-22

Family

ID=31689888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14308889U Pending JPH0382440U (en) 1989-12-13 1989-12-13

Country Status (1)

Country Link
JP (1) JPH0382440U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012194858A (en) * 2011-03-17 2012-10-11 Fuji Electric Co Ltd Door driving control inspection device for vehicle, door driving control inspection method for vehicle and door driving control inspection program for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012194858A (en) * 2011-03-17 2012-10-11 Fuji Electric Co Ltd Door driving control inspection device for vehicle, door driving control inspection method for vehicle and door driving control inspection program for vehicle

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