| 嵌入式Linux和PC/104Plus环境下数采卡驱动设计 |
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| 引用本文： | 梁晓.嵌入式Linux和PC/104Plus环境下数采卡驱动设计[J].科学技术与工程,2011,11(23). |
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| 作者姓名： | 梁晓 |
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| 作者单位： | 西北工业大学航海学院,西安,7100721 |
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| 摘 要： | 分析了Linux操作系统下设备驱动程序的工作机制和一般结构。在PC/104Plus总线的嵌入式系统硬件环境下，设计并实现了多功能数采卡在Linux下的驱动程序。提出一种访问设备缓存区的定时查询读数方式，该方式在提高与设备交互速度的同时降低了对CPU系统资源的占用率。
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| 关 键 词： | 嵌入式 Linux PC/104Plus总线 数据采集 驱动程序 |
| 收稿时间： | 4/18/2011 7:38:36 PM |
| 修稿时间： | 2011/4/19 0:00:00 |
Driver Design of Data Acquisition Card in Embedded Linux and PC/104Plus Environment |
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| liangxiao.Driver Design of Data Acquisition Card in Embedded Linux and PC/104Plus Environment[J].Science Technology and Engineering,2011,11(23). |
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| Authors: | liangxiao |
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| Institution: | LIANG Xiao,HU Yu-li,ZHANG Ke-han (Nautical Institute of Northwestern Polytechnical University,Xi'an 710072,P.R.China) |
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| Abstract: | After analyzing the work mechanism and the common structure of hardware device driver in Linux,the design and implementation of the driver are described for a data acquisition card complying with PC/104Plus standard in Linux environment.An approach to access the device cache based on timing inquires is proposed.It not only improve the interactive speed with the device but also avoid high CPU utility. |
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| Keywords: | embedded Linux PC/104Plus bus data acquisition device driver |
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