【摘要】 介绍了面向CAN总线接口卡的PCI接入技术,给出了该接口卡的硬件设计以及DOS下驱动程序开发的具体思路和实现方法。与Windows系统下的驱动相比,在DOS下开发的驱动程序,使该卡通信速度和实时性有了大幅度的提高,从而能够更好地满足工控系统的实时性需求。实际应用结果表明:该卡在DOS下运行稳定,实时性强,可靠性高。更多还原

【Abstract】 Introduced the CAN-PCI bus interface card access technology, and described the design idea and reali-zation method for its hardware and the driver program in DOS. The driver developed in DOS, compared to which inWindows, guarantees a dramatic improvement over communication speed and timing accuracy of the card. Hence, itbetter meets the real-time performance of the industrial control system demands. Application results show that the cardis stability, real-time and high reliability.更多还原