基于USB总线的测控体系工作原理

Working principle of control system based on USB

USB设备是当前计算机理想的接口之一,通过对USB接口的数据流模型描述,阐明了主机与USB设备的通信数据交互方式,并从USB设备与主机系统交互和USB设备与驱动程序交互两个方面,解释了以USB设备即插即用功能的实现方法。

The device of USB is one of ideal interface of the present computer.By describing the dataflow model of the USB interface,the article expounds interactive mode of communication date of the main computer and the USB device.From two aspects:alternation of the USB device and the main computer system and one of the USB device and driver,it explicates the method of achieving the function of PNP.