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原创 LPC1768的USB驱动(四)----USB驱动程序(1768被配置为设备进行DMA传输)

USB程序的总体流程图:      (图一)USB程序整体流程图(1)USB模块初始化:(1)硬件初始化配置AHB总线时钟和USB Device时钟,使能PCONP配置PLL1作为时钟信号,配置USB相关的引(2)读测试寄存器用来检测AHB总线时钟和USB Device时钟是否使能(3)配置中断主要是配置端点0~5的中断(4)配置端点

2012-11-17 20:25:25 4149 1

原创 LPC1768的USB驱动(三)----LPC1768的USB模块

(图一)USB设备控制器框图模块简介:AHB:主要用于高性能模块(CPU、DMA和DSP等)间的连接;USB ATX:USB 设备控制器内置的模拟收发器,用来收发USB总线上的D+和D-信号;SIE(SERIAL INTERFACE ENGINE),负责处理USB协议,完全使用硬件来处理以提升速度。使用寄存器命令控制功能;EP_RAM:为endpoint保留的、FIFO形式

2012-11-17 20:00:18 6061

原创 LPC1768的USB驱动(二)----USB枚举过程

什么是枚举?USB主机在检测到USB设备插入后,就要对设备进行枚举。枚举就是从设备读取一些信息,知道设备是什么样的设备,如何进行通信,这样主机就可以根据这些信息来加载合适的驱动程序。Hub如何检测到新设备:(1)USB的Hub的下游端口的D+和D-上,接了一个15K欧姆的下拉电阻到地;(2)低速设备:USB设备端,在D-上接了一个1.5K欧姆的电阻,当设备插入时,主机端的D-被

2012-11-17 19:36:36 2905 1

《深度学习》

《深度学习》,MIT3位大牛的作品,中文MOBI版本,有需要的欢迎下载。

2017-11-22

deep learning

'Written by three experts in the field, Deep Learning is the only comprehensive book on the subject.' -- Elon Musk, co-chair of OpenAI; co-founder and CEO of Tesla and SpaceX, Deep learning is a form of machine learning that enables computers to learn from experience and understand the world in terms of a hierarchy of concepts. Because the computer gathers knowledge from experience, there is no need for a human computer operator to formally specify all the knowledge that the computer needs. The hierarchy of concepts allows the computer to learn complicated concepts by building them out of simpler ones; a graph of these hierarchies would be many layers deep. This book introduces a broad range of topics in deep learning., The text offers mathematical and conceptual background, covering relevant concepts in linear algebra, probability theory and information theory, numerical computation, and machine learning. It describes deep learning techniques used by practitioners in industry, including deep feedforward networks, regularization, optimization algorithms, convolutional networks, sequence modeling, and practical methodology; and it surveys such applications as natural language processing, speech recognition, computer vision, online recommendation systems, bioinformatics, and videogames. Finally, the book offers research perspectives, covering such theoretical topics as linear factor models, autoencoders, representation learning, structured probabilistic models, Monte Carlo methods, the partition function, approximate inference, and deep generative models., Deep Learning can be used by undergraduate or graduate students planning careers in either industry or research, and by software engineers who want to begin using deep learning in their products or platforms. A website offers supplementary material for both readers and instructors.

2017-11-22

Building Microservices

Over the past 10 years, distributed systems have become more fine-grained. From the large multi-million line long monolithic applications, we are now seeing the benefits of smaller self-contained services. Heavy-weight, hard to change Service Oriented Architectures are not the answer; instead we are

2017-11-19

Kubernetes Up and Running

Kubernetes Up and Running,mobi格式,英文版,有需要的欢迎下载。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。

2017-11-19

kubernetes2

private files,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

2017-11-12

private files

kubernetes .................................................................................................................................................................................

2017-11-12

图像处理、分析与机器视觉(第三版).part2

图像处理、分析与机器视觉(第三版)中文版,需part1和part2两个,这个是part2

2012-07-22

图像处理、分析与机器视觉(第三版).part1

( 图像处理、分析与机器视觉(第三版) 中文版的,需要 part1 和part2 两个才可以解压

2012-07-15

黑客防线2012第5期

黑客防线2012年第五期,喜欢的请下载,谢谢

2012-06-09

黑客防线 2012年第4期

黑客防线2012年第4期,喜欢的请下载,谢谢。

2012-06-09

linux程序设计第4版.pdf

linux程序设计方面的权威著作,第四版

2012-04-28

metasploit-+the+pentration+tester's+guide

metasploit网络渗透测试软件,完整文字版,要的快下

2012-04-13

Android技术内幕.系统卷

android开发方面很好的书籍,奉献给大家

2012-04-13

黑客防线201203

黑客防线201203,PDF资料,送给需要的人

2012-04-04

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