基于PCI９０５２的48位IO卡原理图,可以作输入或输出控制，

控制卡IO控制程序。买板的时候送的例程。有用到的快下-IO control program control card. When the board bought the routine delivery. Useful to soon

VB6 XP系统下控制打印机端口,本人做过试验,工厂使用过,可以替代上几百元的IO卡使用,包含D-VB6 XP systems control the printer port, I did test, the factory used, can replace hundreds of dollars on the IO card that contains DLL