本文在结合嵌入式实时操作系统VxWorks 和PCI总线的特点的基础上,介绍了PCI总线驱动设计的过程,并从充分应用VxWorks 卓越的实时性和PCI总线灵活的扩展性的角度出发,给出了有一定工程参考价值的建议。 关键词:VxWorks;PCI;实时性;扩展性 Abstract: This paper introduces the process of the design of driver for the PCI bus combining the the characteristic of RTOS VxWorks and PCI bus, and also gives some advises with some engineering referencing value, which is based on the consideration of applying the excellent real time performance of VxWorks and the flexible scalability of PCI bus sufficiently. Key words: VxWorks; PCI; Real Time; Scalability