USB中断传输在微机测试系统中的应用

Application of USB Interrupt Transfering in Test System

介绍了USB通信的原理和硬件、固件以及驱动和客户端软件的设计流程。同时分析了USB中断传输在数据采集系统中的具体应用。实验证明,在实时数据采集系统中,USB通信取代串口势在必行,因为在测试系统实践中能得到性能的最好效果,并且应用起来非常方便。

The communicating principles of USB(Universal Serial Bus)and the design ways of the USB device are introduced in this paper ,including hardware ,firmware, driver and client program.What's more, it tells about how interrupt transferring is used in the data collecting system. It is proved that the USB replacing serial interface in the data collecting system is imperative under the situation,for its function is the best in testing system.