The utility of USB technology in the fourth generations numerical control logging system is introduced, the frame of application system and the design Microcontroller and USB controller is given.
介绍USB技术在第四代数控测井系统中的应用，给出USB应用系统的使用框图、单片机和USB控制器硬件电路的设计。
This paper researched the basic principle of USB technology in detail, and introduced the basic frame of an application system based on USB 2.0 in detail.
本文对usb接口技术的基本原理进行了较详尽的研究，详细介绍了基于USB 2.0的应用系统的基本组成框架。
The paper proposes a design and implementation of an embedded system of human face recognition, it includes the frame of hardware, the arithmetic of face recognition, its driver and its application.
本文提出了一种嵌入式人脸识别系统的设计及具体实现方法，其中包括硬件结构、人脸识别算法、驱动以及其应用程序的实现。
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