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基于嵌入式实时系统的双口通信系统研究
引用本文:蒲源,李建军,徐奇,吴琳,董巍巍.基于嵌入式实时系统的双口通信系统研究[J].计算机与网络,2010(22):47-49.
作者姓名:蒲源  李建军  徐奇  吴琳  董巍巍
作者单位:[1]第二炮兵士官学校,山东青州262500 [2]第二炮兵驻石家庄地区军事代表室,河北石家庄050081
摘    要:该系统基于PC-104总线的硬件平台,VxWorks嵌入式实时操作系统的软件平台,实现了多通道多模式高速串行通信及并行管理。利用VxWorks的I/O系统将驱动程序作为内核过程,设备作为特殊文件处理,解决了工作方式不同的2个485口的驱动程序开发和接口统一问题。详细介绍了VxWorks下双485口串行通信系统板级支持包(BSP)、驱动程序和应用程序的开发过程。

关 键 词:嵌入式系统  串口通信  VxWorks  双口

Research on Dual-port Serial Communication System Based on Embedded Real-time System
PU Yuan,LI Jian-jun,XU Qi,WU Lin,DONG Wei-wei.Research on Dual-port Serial Communication System Based on Embedded Real-time System[J].China Computer & Network,2010(22):47-49.
Authors:PU Yuan  LI Jian-jun  XU Qi  WU Lin  DONG Wei-wei
Affiliation:1 .The Second Artillery Sergeant School, Qingzhou Shandong 262500, China;2. The Second Artillery Military Representative Office in Shijiazhuang, Shijiazhuang Hebei 050081, China)
Abstract:The hardware platform of system is based on PC104 and the software platform is base on VxWorks RTOS. In the system, Dual-port, dual-mode high speed serial communication is actualized. By developing driver as kernel process, device as special file, the paper solves the problem of the driver for two RS-485 ports with different work mode and the unification of interface. This paper discusses in detail the process of developing BSP, driver and application for RS-485 dual port communication system based on VxWorks.
Keywords:embedded system  serial communication  VxWorks  dual-port
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