JPS58141055A - Signal transmitter on handshake system - Google Patents
Signal transmitter on handshake systemInfo
- Publication number
- JPS58141055A JPS58141055A JP57023912A JP2391282A JPS58141055A JP S58141055 A JPS58141055 A JP S58141055A JP 57023912 A JP57023912 A JP 57023912A JP 2391282 A JP2391282 A JP 2391282A JP S58141055 A JPS58141055 A JP S58141055A
- Authority
- JP
- Japan
- Prior art keywords
- data
- signal
- transmitting
- transfer
- receiving device
- 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
Links
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 8
- 230000008054 signal transmission Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Debugging And Monitoring (AREA)
- Small-Scale Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、例えばｒｘＥｍ−４８８等のハンドシェイク
方式による信号伝送装置に関し、従来の信号送受信装置
が欠落している監視機能を具備して送受信状態を監視す
ることによって、従来問題としてきた送受信路のロック
状態を解決すると共に障害を早期に発見し、通信路の安
定及び高速化に寄与するもので、特に電子轡器、測定器
、計算機等の相互間のデータ転送に適用して好適ならし
めたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a signal transmission device using a handshake method such as rxEm-488, and has a monitoring function that is missing in conventional signal transmission and reception devices to monitor the transmission and reception status. It solves the conventional problem of locked transmission and reception paths, detects failures early, and contributes to stabilizing and speeding up communication paths, especially for data transfer between electronic clocks, measuring instruments, computers, etc. It is suitable for application.
一般に使用されている従来の信号伝送波装置を第１図に
示すブロック図で説明すると、同図において、（Ｉａト
００）は双方向性データバス（２）を介して相互に接続
された信号送受信装置、（３ａ）（５ａ） ｐ、それぞ
れデータを転送する受信側信号送受信装置に骸転送デー
タが有効であることを知らせるデータ有効信号、 （４
ａ）−（４ｄ）はそれぞれデータを正常に受信したこと
を送信側信号送受信装置に知らせるデータ受信完了信号
であり、これら構成からなるハンドシェイク方式による
信号伝送装置において、例えば信号送受信装置（１ａ）
から信号送受信装置（１１））、 （１Ｇ）に対するデ
ータ転送は後述するようＫしてなされていた。A commonly used conventional signal transmission wave device is explained using the block diagram shown in Fig. 1. In the figure, (Ia 00) indicates signals connected to each other via a bidirectional data bus (2). Transmitting/receiving device, (3a) (5a) p, a data valid signal that notifies the receiving side signal transmitting/receiving device that transfers the data that the body transfer data is valid, (4
a) to (4d) are data reception completion signals that notify the transmitting side signal transmitting/receiving device that data has been received normally, and in a signal transmitting device using a handshake method having these configurations, for example, the signal transmitting/receiving device (1a)
Data transfer from the signal transmitting/receiving device (11) to the signal transmitting/receiving device (1G) was performed using K as described later.
すなわち、信号送受信装置（１ａ）から信号送受細波ｆ
（１ｂ）、 （１０）にデータ転送を行う際に、先ず
送信側信号送受信装置（１ａ）は、データバス（２）に
信号送受信装置（１りへのデータを送出したのち、デー
タ有効信号（５ａ）を有意にする。一方、受信側信号送
受信装置（１ｂ）はデータ有効信号（３ａ）の有意を確
認し、データをデータバス（２）から入力し、受信完了
信号（４ａ）を有意にして送信側信号送受信装置（１ａ
）に送出してデータ受信完了を知らせる。That is, the signal transmitting/receiving wave f from the signal transmitting/receiving device (1a)
(1b), (10), the transmitting side signal transmitting/receiving device (1a) first sends data to the signal transmitting/receiving device (1) onto the data bus (2), and then sends a data valid signal ( 5a) becomes significant.Meanwhile, the receiving side signal transmitting/receiving device (1b) confirms the significance of the data valid signal (3a), inputs data from the data bus (2), and makes the reception completion signal (4a) significant. transmitting side signal transmitting/receiving device (1a
) to notify completion of data reception.
そして次に送信側信号送受信装置（１ａ）は該データ受
信完了信号（４ａ）が有意となるまで待機し有意となる
と、データバス（２）を介して信号送受信装置（１０へ
のデータを送出したのちデータ有効信号（６Ｃ）を有意
にする。受信側信号送受信装置（１ｃ）はバス（２）か
ら該データを入力し、データ受信完了信号（４ｃ）を有
意にして送信側信号送受信装置（１ａ）にデータ入力が
完了したことを知らせる。そしてさらに、送信側信号送
受信装置（１ａ）は次のデータ転送にステップする。以
下、この動作が繰シ返し行われて連続的なデータ転送が
なされ、信号送受信装置（１ｂ）から（１りへのデータ
転送、信号送受信装置（１ｃ）から（１０へのデータ転
送も同様にして行なわれる。Then, the transmitting side signal transmitting/receiving device (1a) waits until the data reception completion signal (4a) becomes significant, and when it becomes significant, it sends the data to the signal transmitting/receiving device (10) via the data bus (2). Afterwards, the data valid signal (6C) is made significant.The receiving side signal transmitting/receiving device (1c) inputs the data from the bus (2), and makes the data reception completion signal (4c) significant. ) is notified that the data input has been completed.Then, the transmitting side signal transmitting/receiving device (1a) steps to the next data transfer.Hereafter, this operation is repeated repeatedly to perform continuous data transfer. Data transfer from the signal transmitting/receiving device (1b) to (1) and data transfer from the signal transmitting/receiving device (1c) to (10) are performed in the same manner.
しかるに、従来のハンドシェイク方式による信号伝送装
置は以上のように構成されているので、送信側の信号送
受信装置はデータ受信完了信号を受信しない限シ、次の
送信準備にステップするこ ′とが出来ないため
時間損失が生じ、何らかの障害によってデータ受信完了
信号を送信側信号送受信装置が受信できない時には、連
続的なデータ転送は中断し、送信側信号送受信装置がロ
ック状態になるという欠点があった。However, since the signal transmission device using the conventional handshake method is configured as described above, the signal transmission and reception device on the transmitting side cannot take steps to prepare for the next transmission unless it receives a data reception completion signal. This resulted in time loss, and when the transmitter's signal transmitter/receiver could not receive the data reception completion signal due to some failure, continuous data transfer was interrupted and the transmitter's signal transmitter/receiver became locked. .
そこで本発明は、上記のような従来のものの問題点を解
消するためになされたもので、各信号送受信装置に、予
め定められた設定時間内にデータ有効信号に基づいたデ
ータ受信完了信号が応答されない時には、転送未完了検
出信号を出力する時間監視回路を内蔵させて、該転送未
完了信号に基いて次のデータ転送を実行したのちに空時
間に応答のない信号送受信装置との間でデータ転送を再
試行することを特徴とするハンドシェイク方式による信
号伝送装置を提供することにより、信頼性の高い高速伝
送を達成しようとするものである。Therefore, the present invention has been made to solve the problems of the conventional devices as described above.The present invention has been made in order to solve the problems of the conventional devices as described above. When the transfer is not completed, a time monitoring circuit that outputs a transfer incomplete detection signal is built in, and after executing the next data transfer based on the transfer incomplete detection signal, data is sent to and from the signal transmitting/receiving device that does not respond during idle time. The present invention attempts to achieve highly reliable high-speed transmission by providing a signal transmission device using a handshake method, which is characterized by retrying transfer.
以下、本発明の一実施例を、第１図と同一部分は同一符
号を附して示す第２図に基づいて説明すると、図におい
て、本発明における各信号送受細波＠ （１０ａ）、
（１０ｂ）、 （１０ｃ）には、予め定められた設定時
間内に送信したデータ有効信号に基づいたデータ受信完
了信号の応答がない時には、転送未完了検出信号（６ａ
）−（６ａ）を出力する時間監視回路（５ａ）−（５ａ
）が内蔵されておシ、紋転送未完了検出化号に基づいて
次のステップのデータ転送を実行した後の空時間に応答
のない信号送受信装置との間でデータ転送を再試行する
ようになされている。Hereinafter, one embodiment of the present invention will be described based on FIG. 2, in which the same parts as in FIG. 1 are denoted by the same reference numerals.
(10b) and (10c), when there is no response to the data reception completion signal based on the data valid signal transmitted within a predetermined set time, a transfer incomplete detection signal (6a) is sent.
)-(6a) time monitoring circuit (5a)-(5a
) is built-in, and based on the uncompleted transfer detection code, it will retry the data transfer with the unresponsive signal transmitting/receiving device during the idle time after executing the next step data transfer. being done.
すなわち、第２図構成において、例えは信号送受信装置
（１０ａ）から信号送受信装置（１０ｂ）、 （１ｅａ
）にデータを転送する場合について述べると、先ず信号
送受信装置（１０ａ）は、データバス（２）に信号送受
信装置（１ｏｂ）用のデータを転送したのち、データ有
効信号（５ａ）を有意にする。同時に時間監視回路（５
ａ）の動作を開始させて伝送時間を監視する。That is, in the configuration shown in FIG. 2, for example, from the signal transmitting and receiving device (10a) to the signal transmitting and receiving device (10b),
), first, the signal transmitting/receiving device (10a) transfers data for the signal transmitting/receiving device (1ob) to the data bus (2), and then makes the data valid signal (5a) significant. . At the same time, the time monitoring circuit (5
Start the operation in a) and monitor the transmission time.
この時間監視回路（５ａ）にはデータ有効信号（５ａ）
を送出してから、データ受信完了信号（４ａ）が返送さ
れるまでの設定時間が予め定められていて、受信側信号
送受信装置（１０’ｂ）が正常であれば、例えばｔ時間
内に応答があることが分っているので、ｔ＋ａ（ａ＝余
裕時間）時間が経過してもデータ受信完了信号（４ａ）
が返送されない時に転送未完了検出信号（６ａ）を出力
するようになっている。従って、送信側信号送受信装置
（１０ａ）はデータ受信完了信号（４ａ邊Ｅ返送された
時は正常にデータを受信したと判断して次のステップに
移行するが、前記受信完了信号（４ａ）が返送されない
うちに転送未完了検比信号（６ａ）が送出される時には
、何らかの原因により受信側信号送受信装置（１０ｂ）
が正常に動作していないと判断して、受信側信号送受信
装置（１０ｂ）へデータ転送が行なわれなかったことを
記憶し次のステップに移行する。そして、同様にして信
号送受信装置（１００）へのデータ転送を完了し、所定
の処理を行なって次の処理を完了するまでの間の空時間
に、前記信号送受信装置（１０ａ）は、データ転送がで
きなかった信号送受信装置（１０ｂ）の記録を調べ、転
送できなかったデータを再試行するようになっている。This time monitoring circuit (5a) has a data valid signal (5a).
If the set time from sending the data reception complete signal (4a) to the return of the data reception completion signal (4a) is predetermined, and if the receiving side signal transmitting/receiving device (10'b) is normal, it will respond within time t, for example. Since it is known that there is a data reception completion signal (4a) even after t+a (a = margin time) time
When the transfer is not returned, a transfer incomplete detection signal (6a) is output. Therefore, when the transmitting side signal transmitting/receiving device (10a) receives the data reception completion signal (4a), it determines that the data has been received normally and moves to the next step. When the transfer incomplete comparison signal (6a) is sent out before it is returned, the receiving side signal transmitting/receiving device (10b)
It is determined that the receiving side signal transmitting/receiving device (10b) is not operating normally, and the receiving side signal transmitting/receiving device (10b) stores the fact that the data was not transferred, and moves on to the next step. Then, in the idle time between completing the data transfer to the signal transmitting/receiving device (100), performing a predetermined process, and completing the next process, the signal transmitting/receiving device (10a) transfers the data. The record of the signal transmitting/receiving device (10b) that could not be transferred is checked, and the data that could not be transferred is retried.
このため、従来例で問題になっていた連続的なデータ転
送のロック状態を回避することができて信頼性の高い高
速データ転送が行い得る。Therefore, it is possible to avoid the locked state of continuous data transfer, which has been a problem in the conventional example, and to perform highly reliable high-speed data transfer.
なお上記実施例は、１対２の装置間におけるデータ転送
について述べたが、１対Ｎ、Ｎ対Ｈの場合についても同
様な構成を備えることにより、上記実施例と同様な効果
を奏し、数の多い程その効果は顕著なものとなる０
以上のように本発明のノ〜ンドシエイク方式による信号
伝送装置によれば、各信号送受信装置に予め定められた
設定時間に、上記データ有効信号に基づいたデータ受信
完了信号が応答されない時は、転送未完了検出信号を出
力する時間監視回路を内蔵させて、該転送未完了検出信
号に基づいて次のステップのデータ転送を実行し九のち
空時間に応答のない信号送受信装置との間でデータ転送
を再試行するようにしたので信頼性の高い高速データ転
送が行い得る。Although the above embodiment describes data transfer between 1 to 2 devices, by providing a similar configuration in the case of 1 to N and N to H, the same effects as in the above embodiment can be achieved, and the number of As described above, according to the signal transmission device using the node shake method of the present invention, the signal transmission device transmits data based on the data valid signal at a predetermined time in each signal transmitting and receiving device. When the received data reception completion signal is not responded to, a time monitoring circuit that outputs a transfer incomplete detection signal is built in, and the next step of data transfer is executed based on the transfer incomplete detection signal. Since data transfer is retried with a signal transmitting/receiving device that does not respond, highly reliable high-speed data transfer can be performed.
第１図は、従来のハンドシェイク方式による信号伝送を
示すブロック図、第２図は本発明のノ・ンドシエイク方
式による信号伝送装置を示すブロック図である。
（Ｉａ）−（１ａ） 、 （１０ａ）（１０ｃ）・・信
号送受信装置（５ａ）〜（３ｄ）・・−データ有効信号
（４０〜（４ｄ）・・データ受信完了信号（５０械５ａ
）・・時間監視回路
（６ａ）−（６１）・・転送未完了検出信号なお、図中
、同一符号は同一、又は相当部分を示す。
代理人 葛 野 信 −FIG. 1 is a block diagram showing signal transmission using a conventional handshake method, and FIG. 2 is a block diagram showing a signal transmission apparatus using a no-handshake method according to the present invention. (Ia) - (1a), (10a) (10c)... Signal transmitting/receiving devices (5a) - (3d)... - Data valid signal (40 - (4d)... Data reception completion signal (50 machine 5a)
)...Time monitoring circuit (6a)-(61)...Transfer incomplete detection signal Note that in the drawings, the same reference numerals indicate the same or corresponding parts. Agent Shin Kuzuno −
Claims (1)
でデータ伝送を行う際に、送信側信号送受信装置は、前
記データバスを介してデータを送出した稜、受信側信号
送受信装置にデータ有効信号を送出すると共に、受信側
信号送受信装置は前記データ有効信号を受けてデータを
入力し、前ｎピ送信側信号送受信装置にデータ受信完了
信号を送出するようにしてデータ転送の完了を確認し、
次のステップのデータ転送を繰り返すようになされたハ
ンドシェイク方式による信号送受信装置において、上記
各信号送受信装置に、予め定められた設定時間内に、上
記データ有効信号に基づくデータ受信完了信号が応答さ
れない時には転送未完了構出信号゛を送出する時間監蕉
回路を内置させて、該転送未完了検出信号に基づいて次
のステップの！ データ転送を実行した後に、−空時間に応答のない信号
送受信装置との間でデータ転送を褥試行することを特徴
とするハンドシェイク方式による４６号伝送装置。[Scope of Claims] When transmitting data between signal transmitting and receiving devices mutually connected via a data bus, the transmitting side signal transmitting and receiving device transmits the data via the data bus, and the receiving side signal. At the same time as transmitting a data valid signal to the transmitting/receiving device, the receiving side signal transmitting/receiving device receives the data valid signal, inputs the data, and transmits a data reception completion signal to the previous n-pin transmitting side signal transmitting/receiving device, thereby transmitting the data. Confirm the completion of
In a handshake-based signal transmitting/receiving device configured to repeat data transfer in the next step, a data reception completion signal based on the data valid signal is not responded to each of the signal transmitting/receiving devices within a predetermined set time. Sometimes, a time monitoring circuit that sends out a transfer incomplete detection signal is installed, and the next step is determined based on the transfer incomplete detection signal. No. 46 transmission device using a handshake method, characterized in that after performing data transfer, it attempts to transfer data with a signal transmitting/receiving device that does not respond during idle time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57023912A JPS58141055A (en) | 1982-02-15 | 1982-02-15 | Signal transmitter on handshake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57023912A JPS58141055A (en) | 1982-02-15 | 1982-02-15 | Signal transmitter on handshake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58141055A true JPS58141055A (en) | 1983-08-22 |
Family
ID=12123690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57023912A Pending JPS58141055A (en) | 1982-02-15 | 1982-02-15 | Signal transmitter on handshake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58141055A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178561A (en) * | 1984-02-24 | 1985-09-12 | Sharp Corp | Standard digital interface device |
| JPS61243379A (en) * | 1985-04-22 | 1986-10-29 | Yokogawa Electric Corp | Ic test system |
-
1982
- 1982-02-15 JP JP57023912A patent/JPS58141055A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178561A (en) * | 1984-02-24 | 1985-09-12 | Sharp Corp | Standard digital interface device |
| JPS61243379A (en) * | 1985-04-22 | 1986-10-29 | Yokogawa Electric Corp | Ic test system |
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