随着VxWorks操作系统在嵌入式系统中的应用，VxWorks下产品的开发和应用也越来越广泛． 本文描述了VxWorks下PCI数据采集模块驱动程序的设计过程，即通过PCI总线桥接芯片CY7C09449PV 的配置，实现中断和DMA数据传输、完成PCI设备的初始化和驱动接口函数及实现数据采集功能．-With the VxWorks operating system in embedded system, VxWorks development and application of product is also more extensive. This paper describes the PCI data acquisition module under VxWorks driver design process, namely through the PCI bus bridge chip CY7C09449PV configuration, interrupts and DMA data transfer to achieve complete PCI device initialization and driver interface functions and data acquisition.