【摘要】 本文首先将USB与其他常用总线在传输速率等方面做了比较,总结了USB主要优势特点。然后介绍了USB接口芯片PDIUSBD12,并通过一个微控制器数据采集系统利用PDIUSBD12与PC机进行互连的接口实例从硬件设计、固件设计、设备驱动程序设计和用户软件的设计四个方面阐述了基于USB的实时数据采集系统的设计与实现方法。更多还原

【Abstract】 In this paper we firstly compared USB and other common buses in the transport speed and etc, summarized the superiori- ties of USB. And then we introduced USB interface chip PDIUSBD12. Then we expounded the design and realization ways of real- time date acquisition system based on USB in the designing of hardware, firmware, device drive program and user program of an in- terface example between PDIUSBD12 and PC in a date acquisition system with MCU.更多还原