EMC2的硬件抽象层原理与实现  

Principle and Implementation of Hardware Abstraction Layer Based on EMC2

作　　者：林凯宏[1] 游林儒[1] 胡庆华[1] 

机构地区：[1]华南理工大学

出　　处：《单片机与嵌入式系统应用》2009年第12期8-10,30,共4页Microcontrollers & Embedded Systems

基　　金：科技型中小企业技术创新基金(07C26214421826)

摘　　要：为解决嵌入式系统硬件多样化带来的设计复杂性问题,研究如何根据开源运动控制软件EMC2提供的硬件抽象层(HAL),为数控平台构建HAL驱动。介绍其架构与原理,给出了一个在软PLC软件ClassicLadder中调用的例子。实践表明,硬件抽象层的实现有效提高了系统中软硬件的扩展性和可移植性。In order to reduce design complexity introduced by the variety of hardware used in embedded systems,this paper presents how to use the Hardware Abstraction Layer（HAL） provided by open source motion control software EMC2 to construct the HAL drive for CNC system.The structure and principle of HAL are introduced.An example of how to use HAL in soft PLC software ClassicLadder is given.Practice shows that HAL has effectively improved the expandability and portability of software and hardware in the system.

关 键 词：HAL 硬件抽象层 EMC2 ClassicLadder 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]