RTX下的并口实现方法，需要在Windows下安装RTX组件来实现RTX的实时性，与VC进行配合开发。此实例程序的并口线是1712板卡的并口线，但是并口协议可以类比开发到其他的平台下。-RTX under parallel realization method, the need to install Windows under RTX components to achieve the RTX real-time, and to tie in with the development of VC. Examples of procedures for this line is the 1712 parallel port parallel port line card, but the agreement may be analog parallel to other development platforms.