本文介绍了嵌入式操作系统VxWorks下的可加载的PCI 设备驱动的设计,实现了PCI 驱动程序与系统内核启动的分离。结合TMS320C6x系列DSP 的PCI 接口的驱动程序设计,详细描述了驱动程序各模块的实现过程。 关键词VxWorks PCI 驱动可加载TMS320C6x Design of Downloadable PCI Driver on VxWorks Zheng Bin Chen Hua-ming Yong Shao-wei (Satellite Navigation R&D Center, School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073) Abstract This paper presents an introduction of developing downloadable PCI device driver on embedded operating system VxWorks, implements a PCI driver independent of system boot process. The realization of the modules in device driver is elaborated in designing the PCI device driver of TMS320C6x DSP。 Key words VxWorks PCI device driver Downloadable TMS320C6x