| 基于PXI总线的RS422通信卡的设计与应用 |
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| 引用本文： | 王玉铭,周强. 基于PXI总线的RS422通信卡的设计与应用[J]. 计算机测量与控制, 2008, 16(12): 1924-1925,1942 |
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| 作者姓名： | 王玉铭 周强 |
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| 作者单位： | 北京航空航天大学自动化科学与电气工程学院,北京,100083;北京航空航天大学自动化科学与电气工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金 ， 国家高技术研究发展计划(863计划) |
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| 摘 要： | 设计实现了基于PXI总线和SC28L202的4通道RS422通信卡。详细介绍了该RS422通信卡的功能组成和硬件原理;重点讨论了使用SC28L202实现4通道RS422数据的发送和接收、中继时间可控性、波特率配置以及Windows2000/XP下WDM设备驱动程序的设计与实现;同时,对RS422通信卡的测试实验和结果进行了总结和分析;文中研制的基于PXI总线的4通道RS422通信板卡在实际的航空测试工程项目中得到了很好的应用。
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| 关 键 词： | RS422 PXI SC28L202 中断处理 WDM驱动模型 |
Researching and Designing of A RS422 Correspondence Card Based on PXI |
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| Wang Yuming,Zhou Qiang. Researching and Designing of A RS422 Correspondence Card Based on PXI[J]. Computer Measurement & Control, 2008, 16(12): 1924-1925,1942 |
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| Authors: | Wang Yuming Zhou Qiang |
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| Affiliation: | Wang Yuming Zhou Qiang School of Automation Science And Electrical Engineering,BUAA,Beijing 100083,China |
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| Abstract: | Researching and Designing of RS422 correspondence card with 4 channels based on PXI bus and SC28L202 is the important part of this paper.Components of hardware and characters of card are introduced in detail.Using SC28L202 to design RS422 card with 4 channels,control of interrupt time,configuration of baud rat when sending or receiving data,and designing of WDM driver of Windows2000/ XP is discussed in the paper.The experimental results are summarized and analyzed.The correspondence card with 4 channels is meeting the design requirements and being used in the actual aviation test projects. |
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| Keywords: | RS422 PXI SC28L202 |
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