VxWorks下PCI视频采集设备的驱动设计  

PCI Video Capture Device Driver Design Based on VxWorks

作　　者：王德志[1] 

机构地区：[1]包头职业技术学院电气工程系,内蒙古包头014030

出　　处：《包头职业技术学院学报》2008年第1期12-14,共3页Journal of Baotou Vocational & Technical College

摘　　要：视频采集系统在数据传输的实时性、高速性和中断响应上有着较高的要求。为此,设计了一种在x86平台下利用实时操作系统VxWorks,采用PCI总线的视频数据采集系统。示范了采用BT878A芯片的PCI采集卡地址映射和中断资源分配过程,及其RISC指令执行流程。Due to the high demand to real time,high speed and interrupting response of data transferring,the real-time operating system VxWorks is designed based on x 86 platforms with a video capture of PCI bus.The process of mapping address and connecting interception is demonstrated,and the sequence of RISC instructions is also described.

关 键 词：VXWORKS BT878A PCI总线 RISC指令 

分 类 号：TP334.7[自动化与计算机技术—计算机系统结构]