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I/O board card driving design method and device of embedded system based on VME bus

A technology of embedded system and design method, which is applied in general control system, control/adjustment system, comprehensive factory control, etc., can solve the problems of low reentrancy, occupying more memory space, address duplication, etc., and achieve reproducible penetrating effect

Inactive Publication Date: 2015-01-21
SHANGHAI BAOSIGHT SOFTWARE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] There are deficiencies in the existing technology: more memory space is occupied due to loading unnecessary programs, address duplication occurs, and reentrancy is low

Method used

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  • I/O board card driving design method and device of embedded system based on VME bus
  • I/O board card driving design method and device of embedded system based on VME bus
  • I/O board card driving design method and device of embedded system based on VME bus

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0045] The invention realizes the configurability, modularization, expandability and reentrancy of the third-party IO board driver of the embedded system based on the VME bus. In the case that the open bus, especially the VME bus, is more and more widely used in the field of industrial control, the I / O board of the third party has also been widely used. This driving method can also be widely promoted.

[0046] The structure of an embedded application system is usually as follows figure 1 shown. ...

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Abstract

The invention provides an I / O board card driving design method and a device of an embedded system based on a VME bus. The method comprises steps that: realization-needing driving functions of a board card are designed according to demands; driving function demands of the I / O board card are selected from the realization-needing driving functions according to a board card function specification; driving program interface design is carried out according to the driving function demands of the I / O board card; program coding is driven to generate a driving program; a driving function is tested to accomplish a driving structure. According to an operation environment of an operation system, whether the corresponding equipment driving program is loaded during start of the system is determined by existence of peripheral management equipment, so a problem that the memory space is occupied by a loaded unnecessary program is avoided; a phenomenon of address repetition does not occur; I / O hardware can be flexibly used; rapid transformation of the driving program is carried out; multiple times of calling of one same program can be carried out, and reenterability is realized.

Description

technical field [0001] The invention relates to the field of metallurgical automation, in particular to an I / O board drive design method for an embedded system based on a VME bus. Background technique [0002] In the field of modern industrial control, especially in the automatic control of steel rolling, most of them are realized by PLC bottom control plus position computer monitoring. The application of VME (Versa Module EuroCard) system realizes the distribution calculation and makes up for the speed defect of PLC in calculation. Control, fault remote diagnosis, process remote control and provide a powerful and feasible platform for the scale and networking of industrial control in the future. [0003] With the continuous improvement of computer technology and the continuous expansion of control scale, the control speed and computing power of PLC greatly limit the response speed and data calculation time of online high-speed control. Moreover, the continuous expansion o...

Claims

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Application Information

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IPC IPC(8): G05B19/418
CPCY02P90/02G05B19/41835
Inventor 郭心如王育华秦凯运黄学锋赵研
Owner SHANGHAI BAOSIGHT SOFTWARE CO LTD
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