【摘要】 本文介绍军用车辆综合电子信息系统中虚拟仪表内部的计算机上扩展的基于PCI总线的CAN接口卡及其Vx-Works环境下驱动程序的设计。硬件设计方面介绍的主要内容是:PCI9052及其与PCI总线的连接,PCI9052与SJA1000的连接,SJA1000与82C250的连接等。软件设计方面介绍的主要内容是:Vxworks环境下PCI设备的驱动设计及CAN设备的驱动设计等,并给出了主要的程序代码。测试表明,设计的CAN卡及其相关的驱动程序工作正常、可靠。文中所述内容同时能供基于PCI总线的硬件扩展及VxWorks环境下驱动程序设计时参考。更多还原

【Abstract】 The CAN card extended on PCI bus and its driver development in VxWorks are introduced.This card is used on the visual instrument of the armored car’s electronic system.The hardware contents are: the connection among each chips,such as PCI9052,SJA1000,82C250,and the connection between the PCI9052 and PCI bus.The software contents are: the device driver on PCI bus in Vxworks,the driver of CAN interface card in Vxworks,etc.The primary codes are also presented.The test of the program indicated that the hardware and software of CAN card can work normally and stably.The principles and methods are useful in correlative designs.更多还原