摘要： 将微机(PC)引入时间触发CAN(TTCAN)时，Windows XP系统由于基于线程优先级采用抢占式策略进行任务调度而导致非实时性问题。为解决该问题，通过研究PC内部高精度定时器及TTCAN的基本原理和结构特征，设计实现以PC结合通用CAN控制器SJA1000作为时间主节点的TTCAN，其可以满足窗口大小为毫秒级别的TTCAN应用。

关键词: 微机, 时间主机, 时间触发CAN, 网络时间单元

Abstract: Windows XP does not work real-time due to its schedule based on thread priority and task with the highest thread priority will be executed when introducing PC to Time Triggered CAN(TTCAN). In order to solve the problem, this paper introduces realization of TTCAN with PC combined with universal CAN controller SJA1000 being time-host by studying high-precision timer in PC and analysis of TTCAN principium. The design can ensure application of TTCAN whose time window is milliseconds.

Key words: PC, time-host, Time Triggered CAN(TTCAN), Network Time Unit(NTU)

中图分类号: 

• TP273+.5