A Method of Graphical Modeling of Software and Hardware System CAD

Abstract

The invention discloses a computer-aided design (CAD) graphical modeling method for a software / hardware system and belongs to the field of graphical modeling. The method is characterized by comprising a user graph manipulation interface F1, a software / hardware module library management device F2, a graphics modeling device F3, a program task allocation mapping device F4, a core data module F5, a model and mapping file resolver F6 and a model and mapping file F7. The user graph manipulation interface F1 is used for completing the function of modeling according to instructions such as the drawing instruction of a user; the software / hardware module library management device F2 is used for managing a software / hardware basic module with parameters capable of being configured; the graphics modeling device F3 is used for building a software / hardware graphical model by use of the software / hardware basic module; the program task allocation mapping device F4 is used for building a task allocation mapping relationship from software to hardware; the core data module F5 is used for defining various data contents of a modeling system; the model and mapping file resolver F6 is used for resolving files stored according to formats to acquire the various data contents, or storing the data contents as the files according to the formats; and the model and mapping file F7 is used for storing the files according to the formats. By means of the CAD graphical modeling method for the software / hardware system, visualized and efficient software / hardware integrated modeling can be achieved by the user, and an allocation mapping scheme of software tasks on the hardware can be specified.

Description

Technical field [0001] The invention belongs to the field of comprehensive modeling of software and hardware system development, and specifically is a device for graphically modeling software and hardware systems and establishing a mapping relationship between software and hardware tasks. Background technique [0002] In the development of system software / hardware, the traditional program development method of writing line-by-line code for software tasks is inefficient and has poor versatility. The tight coupling of software and hardware development puts higher requirements on the level of developers, and the developed system It has the shortcomings of unclear model structure, high complexity and difficult to maintain. [0003] Before implementing the system, first use software and hardware graphical modeling tools to establish a system model. System development based on a clear structure model can partially solve the above problems. Commonly used graphical modeling tools are CAD ...

AI Technical Summary

Problems solved by technology

[0004] In traditional CAD tools, the interfaces and attributes of software and hardware modules are defined by users themselves, lacking a unified interface and package definition for modules, which is not conducive to the management and reuse of modules; when the system scale is large and the structure is complex, the graphical model It is very complicated and difficult to grasp and manage clearly; there is no effective task correlation and communication path matching between the separately established software models and hardware models, so that developers still need to deal with complex software-hardware coupling problems when implementing the system, and it is impossible to realize software-hardware Effective division of labor for development, and the software and hardware task association scheme cannot be easily modified

The system development process of software and hardware modeling based on traditional CAD tools still faces great difficulties

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