JP3257656B2 - Debug device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a debugging device for finding and removing errors in transmission software or application programs on a computer.

[0002]

2. Description of the Related Art Conventionally, transmission software or an application on a computer is debugged by connecting a protocol analyzer to a computer and simulating communication.
As described above, in a system bus, there is a method of comparing data on the bus with previously collected valid data to determine the validity of the data.

[0003]

In the case of debugging transmission software or applications on a computer even in serial communication, it is necessary to debug the above-mentioned software based on data actually communicated. It is valid. In other words, by using the communication message of the computer that was actually being used, when the application program installed on the computer was modified or when a new application program was added, the application was used online. Since debugging can be performed in the same environment as that of the time, the efficiency of debugging is improved, and a highly completed application can be expected. The same can be said for transmission software on a computer.

However, in the current debugging of transmission software or applications on a computer, the software is debugged by simulated communication using a protocol analyzer to judge the validity of the software or to determine the validity of online transmission. The environment is built separately, and debugging is performed on it. For this reason, those debugged with a protocol analyzer are not reliable enough to be used on-line as they are, and a large amount of capital investment is required to construct a similar environment. There was no problem.

[0005] As described above, conventionally, when debugging transmission software or application programs, simulated communication of a protocol analyzer is often used, and when the above-mentioned software after debugging is actually used online. Had a problem discovered for the first time there.

Accordingly, the present invention debugs the above-mentioned software based on data actually communicated without constructing an environment similar to the online environment, and actually uses the software online. It is an object of the present invention to provide a debugging device for transmitting software or application programs on a computer that realizes an environment equivalent to that of a computer.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a communication apparatus for transmitting data to a first computer, a first computer for receiving data from the communication apparatus, and a debugging target. A second computer on which certain software is installed, a serial communication line connecting the first computer and the communication device, a monitoring circuit for obtaining communication data on the line, and communication data obtained by the monitoring circuit. A memory for storing, a simulated communication driver for performing simulated communication based on monitored data, an output circuit for outputting an analysis result of information to a CRT or the like, and a CPU for controlling the debug device of the present invention.
And a display device for displaying an analysis result of the information.

By installing the debugging apparatus of the present invention, communication data can be obtained, and based on the data, simulated communication is performed with a computer to be debugged, and information communicated with the debug target is transmitted. It is characterized in that the information is compared with the monitored information and a comparison analysis result is output.

[0009]

The device according to the present invention is realized by obtaining communication data from a line which is actually performing serial communication, performing simulated communication using the obtained communication data, and debugging software. It is possible to obtain information when the software is used online. In addition, since comparison with monitored data can be performed, capability evaluation of transmission software and the like can be performed.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing an embodiment of the present invention. A communication device or control device 11 for transmitting data to the first computer, a first computer 8 for receiving data from the communication device or control device 11, and a second computer on which software to be debugged is mounted 9
And the first computer 8 and the communication device or control device 1
1, a monitoring circuit 2 for obtaining communication data on the serial line, a memory 6 for storing communication data obtained by the monitoring circuit 2, and a simulated communication for performing simulated communication based on the monitored data. It comprises a driver 3, an output circuit 4 for outputting information analysis results to a CRT or the like, a CPU 5 for controlling the debugging device 1 of the present invention, and a display unit 10 for displaying information analysis results.

Reference numeral 1 denotes a debugging device, which is connected to a display section 10 of a man-machine interface and a B computer 9 to be debugged. Communication device or control device 1
The debug device 1 of the present invention is connected to the serial communication line 7 connecting the computer 1 and the A computer 8 communicating with the computer 1, and the monitoring circuit 2 obtains communication data on the serial line. The communication data obtained by the monitoring circuit 2 is stored in the memory 6 by the CPU 5. On the basis of the stored communication data, the debugging device 1 sends, via the simulated communication driver 3, the B computer 9 on which the software to be debugged is installed.
Communicates with Communication information between the simulated communication driver 3 and the B computer 9 is stored in the memory 6 by the CPU 5.
Stored in Although there is a time lag in the collection of both data, the communication device or the control device 11 and the A computer 8
The CPU 5 compares the communication information between them and the communication information between the simulation communication driver 3 and the B computer 9 installed in the software to be debugged, and outputs the result to the display unit 10 by the output circuit 4.

FIG. 2 is a functional block diagram functionally showing the execution contents of the above-mentioned debugging device. Specifically, in FIG. 2, when transmission software and application programs for communicating with a newly developed communication device are developed on the D computer 20 and debugging is performed, the transmission software or application program is actually transmitted from the communication device or the control device 18. Data can be obtained by the data collection unit 12 via the monitoring unit 17, and the data is transmitted to the D computer 20 by the simulated communication unit 14. The C computer 19 that has received the data from the communication device or the control device 18 transmits a response based on the software or the like. On the other hand, the data transmitted by the C computer 19 is also transmitted to the information analysis unit 13 via the monitoring unit 17.

The data from the D computer 20 received by the simulation communication unit 14 is transmitted to the information analysis unit 13. After the data transmitted from the C computer 19 and the data transmitted from the D computer 20 are collected, the communication data between the two is compared by the information comparing unit 15, and the result is output to the display unit 16. This makes it possible to easily determine whether the newly developed transmission software or application program is operating normally on actual online.

A specific example will be described with reference to FIG. 4 taking the BSC protocol as an example. Communication device or control device 18 to C
Requests data transmission from the computer 19,
This is an example where the computer 19 responds.

When data is transmitted from the C computer 19, a control code ENQ for status inquiry is transmitted.
The communication device or the control device that has received the ENQ transmits ACK0 that is an acknowledgment. The C computer 19 receiving the ACK0 transmits the text 1 to the communication device or the control device. The communication device or the control device that has received the text 1 determines the validity of the text 1, and thereby transmits an acknowledgment ACK1. Upon receiving the ACK1, the C computer 19 transmits the control code EOT indicating the end of transmission.
To terminate the transmission of one message. still,
In FIG. 4, ENQ is a control code for a status inquiry,
ACK0 is an acknowledgment control code, ACK1 is an acknowledgment control code, DLE is a control code for various transmission controls, E
TX is a control code for ending the text, EOT is a control code for ending the transmission, BCC is a control code for parity, and STX is a control code for starting text.

This series of protocols is transmitted to the monitoring unit 1
7, monitoring is performed, data is collected by the data collection unit 12, and transmission and reception with the D computer 20 are performed by the simulated communication unit 14 based on the data.

Next, the information comparing unit 15 compares the entire text contents of the text 2 transmitted from the D computer 20 and the text 1 transmitted from the C computer 19 and the timing. Then, the contents of the text 1 and the text 2 are displayed on the display unit 16, and as a result of the comparison, different portions of each text are, for example, highlighted. In the case of FIG. 4, the last characters "P" and "O" of the text are highlighted. This makes it possible to easily debug the software of the application of the D computer 20 to be debugged in the same environment as when the software is actually used online.

Here, for example, a C computer 19 for data transmitted from a communication device or a control device 18
The information analysis unit 13 analyzes the response time and the like of
The information analysis unit 13 analyzes the response time of the data from the computer 20, compares the analyzed information by the information comparison unit 15, and outputs the result to the display unit 16. This makes it possible to know the response time and the like of the newly developed software, and to evaluate the capability of the software.

Next, the flow chart of FIG. 3 showing the operation of the debugging device of the present invention will be described. The CPU executes the program stored in the memory 6 of FIG. First, the debugging device 1 collects communication data from the communication device or the control device 11 from the serial communication line 7 (Step S).
1). Analyze the information of the collected data (step S
2) Store the contents in the memory 6 (step S)
3). As a result of the information analysis, it is determined whether or not it is necessary to perform the simulated communication to the B computer 9 (step S4),
If there is no need, the process returns to step S1. When performing the simulated communication, the stored data is transmitted to the B computer 9 to perform the simulated communication (step S5). Whether or not to perform the simulated communication is determined by a communication device or the control device 1.
Standards are set for those responding to 1. This is because the debugging device 1 evaluates a response or a result that can be obtained.

From these operations, A computer 8 and B
Since similar data was transmitted to the computer 9,
If the operation is correct, a response is returned from each of the computers A and B. The information of the data is analyzed (step S6), and the contents are stored in the memory 6 (step S7). The information from each computer is compared (step S8), and the comparison result is displayed on the display unit 10 (step S9).

By installing the debugging device of the present invention, communication data can be obtained. Based on the data, simulated communication is performed with a computer to be debugged, and information communicated with the debug target is transmitted. It is characterized in that the information is compared with the monitored information and a comparison analysis result is output.

[0022]

As described above, according to the present invention,
A computer that performs serial communication with a communication device or a control device, etc., can debug software on the computer easily and in the same manner as when the software is actually used, so that efficient and reliable debugging can be performed. There is an effect that. In addition, the effect can be exhibited in measuring the capability of the software.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a configuration of the present apparatus.

FIG. 2 is a configuration diagram showing a configuration of the present apparatus.

FIG. 3 is a flowchart showing the operation of the present apparatus.

FIG. 4 is a diagram showing one embodiment of a communication message of the present apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Debugging device 2 Monitoring circuit 3 Simulation communication driver 4 Output circuit 5 CPU 6 Memory 7 Serial communication line 8 First computer 9 Second computer 10 Display unit 11 Communication device or control device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04L 29/14

Claims (3)

(57) [Claims] 1. A first computer and a communication / control device
Connected to a communication line for communicating with
A communication device, connected to the communication line, the first computer,
Monitor for monitoring communication data with communication / control device
Means and the communication / control device obtained by the monitor means
Communication data to the first computer and the first
First response data from the computer to the communication / control device
Memory means for storing data and debugging the communication data stored in the memory means.
On a second computer with the target software
Sent against and the second sent from the second computer
Receiving the response data and storing it in the memory means.
Pseudo communication means, and the first response data stored in the memory means
Comparing means for comparing with the second response data , wherein the second response data is transmitted from the simulation communication means.
Based on the communication data received, the second computer
Using the software to be debugged
A debugging device characterized by being a result. 2. The response time from the first computer;
Information solution to analyze the response time from the second computer
Analysis section, and the response time analyzed by the information analysis section.
Are compared by the comparison means and the result is displayed on the display means.
The debugging device according to claim 1, wherein 3. A software used in a device connected to a communication line.
In a debugging method for debugging software, a method for communicating with a first computer connected to the communication line is provided.
The communication data with the control device is monitored, and the communication / control device obtained by the monitor is used to monitor the first data.
Communication data to another computer and the first computer
The first response data from the data to the communication / control device.
Use the software to be debugged on the second computer
There processes the pre Symbol communication data said store, transmitted from the second computer as the processing result
Storing the second response data, and storing the stored first response data and the second response data.
A debugging method characterized by comparing data with the data.