JPH0784962A - Data processing system - Google Patents

Abstract

PURPOSE:To shorten the transmission/reception time of a large amount of data and to improve the operability of the man-machine interface of a support function by equipping the system with a serial interface line which connects a processor to a personal computer and a parallel interface line which connects the processor to the personal computer. CONSTITUTION:The processor 2 which processes data by using a microcomputer system 1 and the system main body 4 of the personal computer (terminal) 3 which is stored with the support program of the processor 2 are connected through the serial interface (line) 5 and the parallel interface (line) 6. Then requests to input and output data to the personal computer 3 and microcomputer system 1 are sent by using the serial interface 5 and the data are sent and received by using the parallel interface 6 to support the data processing in real time. Consequently, normal transactions and the support processing can be performed in parallel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing system in which a processing device for processing data using, for example, a microcomputer system and a personal computer in which a support program for the processing device is stored are connected via an interface. Regarding

[0002]

2. Description of the Related Art Conventionally, a small-scale data processing system is composed of a microcomputer system in which a normal business program for processing data and a support program are incorporated. This microcomputer system is connected to a terminal having a screen display function and a key input function by a serial interface. A small amount of data such as key input data and screen display data is transmitted and received by this serial interface.

However, as the microcomputer system expands from a small scale to a medium scale, many functions of a support program are required, that is, various and multi-functional support is required. As a result, the support program has expanded, and a multifunctional support program has become necessary. It is difficult to incorporate such a multi-functional support program inside the microcomputer system. Therefore, as a solution to that problem, a personal computer external to the microcomputer system is connected via a serial interface, and a support program is placed on the external personal computer.
Some have realized that only the basic functions of data processing (input / output) are placed inside the microcomputer system.

In this case, data required for support (a large amount of data) is transmitted and received via a serial interface to realize a support function.

However, in the data processing system as described above, since the microcomputer system and the personal computer are connected by the serial interface, it is not possible to process a large amount of various kinds of data in a short time, and it takes a long communication time. There is a drawback that it will end up. Even if the data is compressed, there is a limit, and it takes communication time.

That is, since the data to be transmitted / received is expanded due to the multi-functionalization of the support function, the time required for the data transmission / reception is also expanded, and the response is waited during the data transmission / reception. It got worse.

During the data communication between the microcomputer system and the personal computer, another program,
That is, there is a drawback that the support program of the personal computer and the business program as the basic data processing in the microcomputer system stop.

[0008]

SUMMARY OF THE INVENTION As described above, according to the present invention, it takes a long time to communicate data for support between the microcomputer system and the personal computer, or another program is in progress during the communication of the data. It eliminates the disadvantage that the man-machine interface of the support function is not easy to operate,
A personal computer and a microcomputer system can be operated in real time, and communication of support data can be performed without stopping the normal operation of the microcomputer system, and the transmission / reception time of large-capacity data can be shortened. An object of the present invention is to provide a data processing system capable of improving the operability of the man-machine interface of the support function.

[0009]

A data processing system of the present invention stores a processing device for processing data using a microcomputer system capable of operating a real-time operation system and a support program for this processing device. Is connected via a serial interface for command transmission / reception and a parallel interface for data transmission / reception, the personal computer inputting means for inputting a support instruction, and the inputting means. The first transmitting means for transmitting a command corresponding to the support instruction by the microcomputer to the microcomputer system using the serial interface.
The microcomputer, which comprises first receiving means for receiving the data supplied through the parallel interface in response to the transmission by the transmitting means, and output means for outputting the data received by the first receiving means. The system receives a command supplied via the serial interface without affecting the processing means for processing the data, the storage means for storing the processing result by the processing means, and the processing by the processing means. Receiving means, reading means for reading desired data from the storage means in response to the command received by the second receiving means,
And second transmitting means for transmitting the data read by the reading means to the microcomputer system using the parallel interface.

A data processing system according to the present invention comprises a processing device for processing data using a microcomputer system and a personal computer connected to the processing device. The processing device and the personal computer are connected to each other. A serial interface line for connecting the processing device and a personal computer to each other, and the personal computer transmits a command to the processing device using the serial interface line.
The transmitting means, the first receiving means for receiving the data supplied through the parallel interface line in response to the transmission by the first transmitting means, and the data received by the first receiving means. The processing device is constituted by output means, the processing device stores the processing result of data, second receiving means for receiving a command supplied via the serial interface line, and second receiving means for receiving the command. It is composed of reading means for reading desired data from the storage means in response to a command, and second transmitting means for transmitting the data read by the reading means to the processing device using the parallel interface line. .

[0011]

According to the present invention, in the above-described structure, a processing device for processing data by using a microcomputer system capable of operating the real-time operation system and a support program for this processing device are stored, and the real-time operation system can operate. A personal computer connected via a serial interface for command transmission / reception and a parallel interface for data transmission / reception, the personal computer inputs a support instruction and responds to the input support instruction. The command is transmitted to the microcomputer system using the serial interface, the data supplied via the parallel interface is received in response to the transmission, and the received data is output. The microcomputer system processes the data by the processing means, stores the processing result in the storage means, receives the command supplied through the serial interface without affecting the processing by the processing means, Desired data is read from the storage means in response to the received command, and the read data is transmitted to the microcomputer system using the parallel interface.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a data processing system of the present invention. A processing device 2 for processing data using a microcomputer system 1 and a personal computer (terminal) 3 in which a support program for the processing device 2 is stored.
The system main body 4 is connected via a serial interface (line) 5 and a parallel interface (line) 6.

The processing unit 2 includes the microcomputer system 1,
It is composed of a magnetic disk 11, a memory 12, and the like.

The microcomputer system 1 is composed of a command transmission / reception task 1a, a data transmission / reception task 1b, a data input / output task 1c, and a normal task processing task 1d. The support related tasks of the command transmission / reception task 1a, the data transmission / reception task 1b, the data input / output task 1c and the normal business processing task 1d can operate in parallel. The command transmission / reception task 1a receives a request from the system body 4 of the personal computer 3 using the serial interface 5 and performs request queuing for the request. Thereby, it is possible to receive a plurality of requests. The data transmission / reception task 1b transmits / receives data to / from the system body 4 of the personal computer 3 using the parallel interface 6. The data input / output task 1c
By reading / writing data from / to the magnetic disk 11 and the memory 12, the data necessary for support is input / output. The normal task processing task 1d is for performing a normal task.

The personal computer 3 comprises the system body 4, a CRT display section 21, a keyboard 22, a magnetic disk 23, a floppy disk 24 and the like.

The system main body 4 is composed of a man-machine interface task 4a, a command transmission / reception task 4b, a data transmission / reception task 4c, a data input / output task 4d, and a support main task 4e.

Man-machine interface task 4a
Uses the CRT display unit 21 and the keyboard 22 to interface with the operator. The command transmission / reception task 4b uses the serial interface 5 to make a request (data input request, data output request, cancel) to the microcomputer system 1. The data transmission / reception task 4c transmits / receives data to / from the microcomputer system 1 of the processing device 2 using the parallel interface 6. The data input / output task 4d inputs / outputs data required for support by reading / writing data from / to the magnetic disk 23 and the floppy disk 24. Support main task 4e
Controls the man-machine interface task 4a, command transmission / reception task 4b, data transmission / reception task 4c, and data input / output task 4d.

The microcomputer system 1 of the processing device 2 and the system body 4 of the personal computer 3 are capable of operating a real-time OS (operation system), and can perform normal operations and support operations in parallel.

Next, the operation of the support program will be described.

First, when the support program of the system main body 4 of the personal computer 3 is activated, it requests data (a plurality of data) required for support, and transfers control to the man-machine interface task 4a. The man-machine interface task 4a displays a title menu or the like on the CRT display unit 21 and waits for operator input.

The microcomputer system 1 side accepts a data input / output request (a plurality of data) from the personal computer 3 during normal business (operation of a business task), queues the request in the microcomputer system 1, and sequentially takes out the requests. , Data input / output task 1 required by request
c, data transmission / reception with the personal computer 3 is performed via the data transmission / reception task 1d. At this time, since it is operating under the control of the real-time OS, the normal business processing task 1d is not stopped.

Further, even if the personal computer 3 issues a data input / output request and the data input / output processing is not completed, if the support program is interrupted and the cancel request is issued, the request data once issued. Support can be ended immediately even if all transmission and reception are not completed.

Further, by using the parallel interface 6 for data input / output, the time required for data transmission / reception is shortened even if a large amount of data is generated.

The operation of the system body 4 side of the personal computer 3 will be described with reference to the flow chart shown in FIG. That is, when the support main task 4e is instructed to start the support program, the support main task 4e outputs a fixed data request to the command transmission / reception task 4b. Then, the command transmission / reception task 4b supplies a data reception request command for the fixed data request to the command transmission / reception task 1a via the serial interface 5.

When data (fixed data) from the data transmission / reception task 1b is supplied to the data transmission / reception task 4c via the parallel interface 6 in response to this command, the data transmission / reception task 4c receives the data and inputs the data. A data write request is output to the output task 4d. The data input / output task 4d writes the received data in the magnetic disk 23 or a memory (not shown).
When this writing is completed, the data input / output task 4d outputs a data reception end notification to the support main task 4e.

The support main task 4e outputs the fixed data request and then outputs a menu display request to the man-machine interface task 4a. Then, the man-machine interface task 4a is the CRT.
The display unit 21 displays the menu. In response to this guidance, the operator inputs a support instruction from the keyboard 22. Then, the man-machine interface task 4a outputs the key data to the support main task 4e. As a result, the support main task 4e outputs a designated data request corresponding to the key data to the command transmission / reception task 4b. Then, the command transmission / reception task 4b supplies a data reception request command for the designated data request to the command transmission / reception task 1a via the serial interface 5.

In response to this command, when the data transmission / reception task 4c is supplied with data (designated data) from the data transmission / reception task 1b via the parallel interface 6, the data transmission / reception task 4c receives the data and inputs the data. A data write request is output to the output task 4d. The data input / output task 4d writes the received data in the magnetic disk 23 or a memory (not shown).
When this writing is completed, the data input / output task 4d outputs a data reception end notification to the support main task 4e.

Next, the support main task 4e outputs a data edit and screen display request to the man-machine interface task 4a. Then, the man-machine interface task 4a causes the CRT display unit 21 to display the written data as edited data.

The operation of the microcomputer system 1 will be described with reference to the flow chart shown in FIG.
That is, the normal business processing task 1d is processing the normal business, and the data generated by this business processing is stored in the magnetic disk 11 or the memory 12. In the state where this normal work is processed, the data reception request command from the command transmission / reception task 4b of the system main body 4 is supplied to the command transmission / reception task 1a via the serial interface 5. Then, the command transmission / reception task 1a receives the request and performs request queuing for the request. In response to this request queue, the data input / output task 1c
Reads necessary data from the magnetic disk 11 or the memory 12. The read data is supplied from the data transmission / reception task 1b to the data transmission / reception task 4c of the system body 4 via the parallel interface 6.

As described above, the processing device for processing data by using the microcomputer system capable of operating the real-time operation system and the personal computer capable of operating the real-time operation system in which the support program for the processing device is stored are commands. When connected via a serial interface for transmission / reception and a parallel interface for data transmission / reception, the personal computer inputs a support instruction, and a command corresponding to the input support instruction is input to the serial interface. The data is transmitted to the microcomputer system by using the microcomputer system, the data supplied via the parallel interface is received in response to the transmission, and the received data is output. Processes the data by the processing means, stores the processing result in the storage means, receives a command supplied through the serial interface without affecting the processing by the processing means, and receives the received command. In response to the above, desired data is read from the storage means, and the read data is transmitted to the microcomputer system using the parallel interface.

That is, it is a system that uses a serial interface and a parallel interface together for communication and supports them in real time.

Moreover, even if the support program is started,
Support processing can be realized without stopping the normal business processing of the microcomputer system, and by providing two channels of serial interface and parallel interface, it is possible to accept command requests such as data input / output and cancellation at any time, and data input / output processing It will not take time to become a responsive support program. In addition, high speed data transmission / reception is possible by using a parallel interface for data input / output (large amount of data).

As a result, the personal computer and the microcomputer system can be operated in real time, and the supporting data can be communicated without stopping the normal operation of the microcomputer system.
Furthermore, the transmission / reception time of large-capacity data can be shortened, and the operability of the man-machine interface of the support function can be improved.

[0035]

As described above in detail, according to the present invention,
The personal computer and the microcomputer system can be operated in real time, and the data for support can be communicated without stopping the normal operation of the microcomputer system, and the transmission / reception time of large-capacity data can be shortened. A data processing system capable of improving the operability of the man-machine interface of the support function can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing the overall configuration of a data processing system according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of the system body of the personal computer.

FIG. 3 is a flowchart for explaining the operation of the processing device on the microcomputer system side.

[Explanation of symbols]

 1 ... Microcomputer system 1a ... Command transmission / reception task 1b ... Data transmission / reception task 1c ... Data input / output task 1d ... Normal business processing task 2 ... Processing device 3 ... Personal computer 4 ... System main body 4a ... Man-machine interface task 4b ... Command transmission / reception task 4c ... Data transmission / reception task 4d ... Data input / output task 4e ... Support main task 5 ... Serial interface 6 ... Parallel interface

Claims (2)

[Claims] 1. A command transmitting / receiving apparatus for processing data by using a microcomputer system capable of operating a real-time operation system, and a personal computer capable of operating the real-time operation system in which a support program for the processing apparatus is stored. A data processing system connected via a serial interface and a parallel interface for transmitting and receiving data, wherein the personal computer inputs input means for inputting a support instruction, and a command corresponding to the support instruction by the input means. To the microcomputer system using the serial interface, and receives data supplied via the parallel interface in response to the transmission by the first transmitting means. No. 1 receiving means and output means for outputting the data received by the first receiving means, the microcomputer system processes the data, and storage means stores the processing result by the processing means. And second receiving means for receiving a command supplied through the serial interface without affecting the processing by the processing means, and the storage corresponding to the command received by the second receiving means. A data processing system comprising a reading means for reading desired data from the means, and a second transmitting means for transmitting the data read by the reading means to the microcomputer system using the parallel interface. . 2. A data processing system comprising a processing device for processing data using a microcomputer system and a personal computer connected to the processing device, the serial interface line connecting the processing device and the personal computer. And a parallel interface line connecting the processing device and the personal computer, the personal computer transmitting a command to the processing device using the serial interface line, and the first transmission means. It comprises first receiving means for receiving the data supplied through the parallel interface line in response to the transmission by the transmitting means, and output means for outputting the data received by the first receiving means. The processing unit Storage means for storing the processing result of the above, a second receiving means for receiving a command supplied through the serial interface line, and a desired one from the storage means corresponding to the command received by the second receiving means. Reading means for reading the data of the above, and a second means for transmitting the data read by the reading means to the processing device using the parallel interface line.
A data processing system, comprising: