| 基于PCI总线的智能双通道RS422通信卡设计 |
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| 引用本文： | 熊飞,魏宗寿. 基于PCI总线的智能双通道RS422通信卡设计[J]. 铁路计算机应用, 2010, 19(7): 54-57 |
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| 作者姓名： | 熊飞 魏宗寿 |
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| 作者单位： | 兰州交通大学,光电技术与智能控制教育部重点实验室,兰州,730070 |
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| 摘 要： | 设计实现了一种基于PCI总线的智能双通道RS422通信卡.板卡的核心部分包括PCI总线控制器PLX9052、双口RAM,CPLD,AVR单片机Atmega128,异步收发器,及RS422总线接口芯片.介绍RS422通信卡的硬件实现及系统软件结构,包括应用程序设计和WDM驱动程序设计.该通信卡允许多达128个的接口芯片接在同一总线上,便于实现多机通信.该接口卞可以用于高速的数据通信中,并且在计算机联锁全电子智能化执行机中得到了很好的应用.
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| 关 键 词： | XR16C854 PCI RS422 WDM驱动模型 |
| 收稿时间： | 2010-07-15 |
Design of smart double-channel RS422 communication card based on PCI bus |
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| XIONG Fei,WEI Zong-shou. Design of smart double-channel RS422 communication card based on PCI bus[J]. Railway Computer Application, 2010, 19(7): 54-57 |
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| Authors: | XIONG Fei WEI Zong-shou |
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| Affiliation: | (Key laboratory of Opto-electronic Technology and Intelligent Control,Ministry of Education,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | This articled mainly introduced the design and implementation of one double-channel RS422 communication card based on PCI bus.The hardware core of the card were PCI bus interface controller PLX9052,Dual-Port RAM,CPLD,AVR microcontroller Atmega128,Universal Asynchronous Receiver/Transmitter,RS422 Bus Interface Chip.It allowed 128 interface ICs to connect with each other on one bus.It was easy to use the card in Multi-computer System.The card could be used in high speed communication and was used well in computer interlocking all-electronic intelligent performance computer. |
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| Keywords: | XR16C854 PCI RS422 |
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