摘要
针对一个实际问题,介绍了Windows 2000/NT对I/O端口的保护机制和直接访问I/O端口的方法。并用Win32 API函数和直接I/O端口函数混合编程解决这个实际的实时问题。
This paper has introduced Windows 2000/NT protection mechanism of I/O port and method to visit I/O port directly.Then mixes programming and solve a real real-time problem with Win32API function and direct I/O port function.
出处
《机电工程技术》
2010年第6期33-34,138,共3页
Mechanical & Electrical Engineering Technology
关键词
实时通讯
设备驱动程序
I/O端口
real-time communication
device drive program
I/O port
