Windows98下数控系统实时控制的实现

Realization of real-time control for NC system in Windows98 environment

针对Windows98对系统底层采取了屏蔽策略,难以实现数控系统的实时控制问题,提出了从软硬件两方面加以解决的方法:硬件方面设计一个外部定时中断控制电路;软件方面编写虚拟设备驱动程序(VxD).

Windows98 shields the bottom of the operating system, so it is difficult to realize the real-time control of NC system.A method to resolve this problem from two aspects is put forward:an exterior time interrupt control circuit is designed,and the virtual device driver(VxD) is programmed.