基于RTX的并口实时中断控制系统

LPT Real-Time Interrupt Control System Based on RTX

并口实时中断控制系统利用RTX在Windows XP操作系统上进行实时性能扩展,形成与WindowsXP并列的实时子系统。利用CPLD分频产生时序作为并口中断输入信号,实时子系统响应中断并执行中断服务程序。将此并口实时中断控制系统应用于飞控软件实时动态仿真监测系统,实验证明该系统满足了监测系统的高实时性和稳定性、可靠性要求。

LPT real-time interrupt control system uses RTX to extend Windows XP OS, forming a real-time subsystem（ RTSS）. The interrupt is generated by CPLD. RTSS receives the interrupt through LPT and handles it. Applying this system to the monitoring system of flight control software, experiments show that this system runs in high real-time performance and works steadily and reliably.