KR20020092861A - Embedded Programming Education System Through Internet and Virtual Education Equipment - Google Patents

Abstract

PURPOSE: A programming education system is provided to offer a user a cross development environment over a web so that it can alleviate a burden such as a construction and maintenance of a host or target system in performing an embedded type programming education. CONSTITUTION: The system comprises web browsers(10, 11), a service providing server(12) and virtual education apparatuses(13, 14). The service providing server(12) executes programs in a plurality of virtual education apparatuses according to control signals input via the web browsers(10, 11). The virtual education apparatuses(13, 14) execute the education programs downloaded from the server(12), and transmit execution results to the server(12). The server(12) includes a web server(30), a project manager(31), cross compilers(32), an education apparatus sharing manager(33) and a debugging manager(34). The web server(30) receives web page access requests from web browsers(10, 11), performs a search, a generation or a conversion of documents, and transmits the process result to the web browsers(10, 11). The cross compilers(32) compile programs according to a control of process/debugging buttons. The sharing manager(33) downloads process files to the virtual education apparatuses(13, 14) and enables the web browser to share the virtual education apparatuses(13, 14).

Description

Embedded Programming Education System Through Internet and Virtual Education Equipment}

The present invention relates to a built-in programming education system through the Internet and virtual education equipment.

In recent years, the use of embedded systems has been very active, such as automotive engine control, factory automation, control applications, Internet home refrigerators, digital home TV set top boxes, information communication applications, communication applications for the control of communication equipment, mobile phones, PDA terminals, etc. Application is a representative example.

The development of an embedded computer system is different from that of a general purpose computer system, and is more difficult because the system in which the program is developed and the system in which the developed program is executed are different. The system for developing a program is called a host system, and the system on which the developed execution module is executed is called a target system. Programs written on the host are compiled by the crosscompiler, run and debugged by the cross debugger. The host system and the target system are collectively called a cross-development environment.

Various educational devices have been developed and utilized for programming education for embedded systems. Usually 32-bit microprocessor is adopted, and memory such as DRAM, flash memory and I / O devices such as Ethernet and serial are basically installed. In addition, I / O devices such as LCDs, LEDs, keypads, etc. are also installed to enhance the educational effect.

The problem with the existing embedded programming education equipment is that it must first have a cross-development environment. In other words, 30 people need 30 host PCs and 30 target devices to be educated. Second, maintenance costs of equipment are required, and the burden of replacing old equipment is incurred. Third, the utilization of the equipment is very low, and it is not used at all when there is no class.

It is also possible to use the CPU simulator without the training equipment, but it has a problem that the general operating system cannot be ported because the simulator simply simulates the execution of instructions that are the core parts of the CPU and does not simulate the virtual memory device or the input / output device. In addition, it has a problem that it is difficult to simulate the input and output devices, such as LCD, LED, keypad to increase the educational effect.

An object of the present invention was created in view of the above-mentioned problems of the prior art, thereby providing a user with a cross-development environment through the web to relieve the burden of building, maintaining, and maintaining a host and a target system. In addition, it aims to support high level target execution environment that CPU simulator cannot provide through virtual education equipment.

According to a feature of the present invention for achieving the above object, a plurality of user web browser, a service providing server for serving a cross-development environment according to the user's request, and cross-compiled execution file to execute the results provided It consists of a number of virtual educational equipment delivered to the server.

Preferably, the service providing server is a web server for processing a user's web search request, a project manager for managing program files written by the user, a cross-compiler unit for cross-compiling the program according to the type of target CPU, the compiled execution file It includes a performance / debugging manager that supports execution and debugging, and a virtual education device sharing manager that manages the sharing of virtual education equipment to maximize utilization.

According to another feature of the present invention for achieving the above object, the user selects the specification of the host and target through the user web browser, and editing the program file using the function of the user web browser And generating, by the project manager, a version of the programs and automatically generating a compilation method, generating a performance file suitable for a target in the cross-compiler unit, and sharing the virtual education device with the virtual education device. Downloading the execution file and supporting sharing, the user processing the execution and debugging of the execution file with the help of the execution / debugging manager, and documenting the result of the execution with the help of the web server; Displaying it in the user's web browser, and the user sees the result According to a step of performing a re desired step.

1 shows a schematic diagram of a built-in programming education system.

2 shows an example of a web-based user GUI.

3 shows a configuration diagram of a service providing server which is a core component.

4 shows a flowchart for providing a programming education service.

Hereinafter, the configuration and operation according to the embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a system configuration diagram illustrating a built-in programming education system through the Internet and virtual education equipment according to the present invention.

Built-in programming education system through the Internet and virtual education equipment according to the present invention, as shown in Figure 1, the first to n-th user web browser (10, 11), and the first to n-th user web browser (10) 11) and a service providing server 12 for executing a program in the plurality of virtual educational equipment according to a control signal input from a user web browser connected to the Internet, and educational programs downloaded from the service providing server 12. It consists of the first to m-th virtual education equipment (13, 14) to perform and deliver the result to the service providing server.

Here, the first to n-th user web browsers 10 and 11 refer to general web browsers operated by the HTTP protocol, which is a standard protocol for web searching, and may include, for example, MS Explorer or AOL Netscape.

2 illustrates an example of a GUI provided to a user as a result of searching by the user web browsers 10 and 11. As a result of the present invention, the GUI provided to the user includes pull-down menus 20 such as files, edits, views, tools, shortcut icons 21 for shortening provided functions, and programs for editing a plurality of program files. Editing window 22, execution / debugging buttons 23 having buttons for compiling, executing and debugging them, execution / debugging window 24 for displaying the result of compilation or debugging, and the result of performing the virtual education equipment. Equipment display window 25 to display, the operating system status display window 26 to access the operating system running in the virtual education equipment.

The service providing server 12 according to the present invention receives a web page access request from the user web browser (10, 11), the web server 30 for searching, generating, converting the document and forwarding it to the user web browser, Project manager 31 for managing programs created and modified using the program editing window 22 in a project structure, and cross-compilers 32 for compiling programs under the control of the execution / debugging buttons 23. And a performance / debugging manager 34 for performing and debugging performance files under the control of the execution / debugging buttons 23, and downloading the execution files to the virtual education equipment 13 and 14 and sharing the virtual education equipment. It consists of a virtual education equipment sharing manager 33 to support the.

4 is a flowchart illustrating a service providing in an embedded programming education system through the Internet and virtual education equipment.

First, as shown in Figure 4, the user first selects the specifications of the desired system according to the instructions of the user web browser (10, 11) (S500). For example, the host is Linux and the target is PPC860. At this time, a specific input / output device may be designated. You can save the system specification and retrieve it for later use. Thereafter, the program file is edited using the functions of the user web browsers 10 and 11 (S501). The created program files are stored with the help of the project manager 31 and a compilation method thereof (eg, a makefile) is automatically generated (S502). Program files are compiled by the cross-compiler 32 according to a user's request and made into an execution file (S503). Thereafter, the execution file is downloaded to the virtual education equipment 13 and 14 under the management of the virtual education equipment sharing manager 33 (S504). The downloaded files can be transferred to other virtual education equipment according to the sharing principle, which is irrelevant to the user. The execution / debugging manager 34 executes or debugs the execution file according to the control of the user (S505). The execution result is made into a web document by the web server 30 and displayed on the user web browsers 10 and 11 (S506). After checking the result, the user repeats the process (S501), (S504), or (S505) as necessary.

As described above, the present invention can reduce efforts and costs for building a host and target education environment by building an embedded programming education system through the Internet and virtual education equipment, and increase the utilization of equipment by sharing virtual education equipment. Therefore, it is possible to use the service at low cost, and it is effective to maximize the ICT manpower by constructing an embedded system programming education system that is easy to use and scalable.

Claims (4)

Multiple user web browsers, According to the control command input from the user, the project management function, the cross-compiling and cross-debugging function, the service providing server supporting the virtual education equipment sharing function, and the execution file downloaded by the service providing server are executed and the result is transmitted to the service providing server. Built-in programming education system characterized in that it comprises a virtual education equipment to deliver. GUI of the user web browser, characterized in that to display the execution result of the execution file on the live screen of the educational equipment. The method of claim 1, wherein the service providing server A web server for receiving the control command from the plurality of user web browsers and documenting a result of the execution of the web document to the user web browser; A project manager that manages versions of program files edited by users and automatically generates compilation methods, Cross-compiler section that generates programs by compiling programs according to user's needs, Execution / Debugging Manager in charge of execution and debugging of execution file, The service providing server, characterized in that configured to include a virtual education equipment sharing manager for downloading a performance file to the virtual education equipment and sharing function. Selecting a specification of a host and a target through the user web browser; Editing a program file using a function of the user web browser; The project manager managing versions of programs and automatically generating a compilation method; Generating an execution file suitable for a target in the cross-compiler unit; Downloading, by the virtual education equipment sharing manager, the execution file to the virtual education equipment, and supporting sharing; Processing, by the user, execution and debugging of the execution file with the help of the execution / debugging manager; Documenting the performance result with the help of the web server and displaying it on the user web browser; Method for controlling the embedded programming education system, characterized in that the user checks the result and performs the desired step according to the result.