基于嵌入式实时系统的双口通信系统研究  

Research on Dual-port Serial Communication System Based on Embedded Real-time System

作　　者：蒲源[1,2] 李建军[1,2] 徐奇[1,2] 吴琳[1,2] 董巍巍[1,2] 

机构地区：[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

出　　处：《计算机与网络》2010年第22期47-49,共3页Computer & Network

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/0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。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.

关 键 词：嵌入式系统 串口通信 VXWORKS 双口 

分 类 号：TN914[电子电信—通信与信息系统] TP368.1[电子电信—信息与通信工程]