可调时钟

数字音频实验测试工程，程序演示了通过I2C 总线对 TLV320AIC23 芯片的控制，各种音频环路，多种采样频率，DMA 音频采集和输出等 测试。程序中有详尽的说明。TLV320AIC23 的控制HDL模块Freedev_aic23 的7 号 寄存器提供了读和写两个端口，分别连接到数字音频芯片的AD 和DA 通道，每次可 读出和写入一个32 位宽的数据，分别是16 位左声道和16 位右声道的采样值。每 次数据就是一次采样的结果。如果是48K 采样率，那么每个数据时间间隔就是 1/48000。在这个工程基础上可以输出我们的特殊处理的数据，如正弦波数据，就 可以输出（LOUT）正弦波信号。

一个arm7实验板上音频控制测试程序，此音频控制测试程序由c语言编写。-a arm7 experiment on-board audio control test procedures, this test program from the audio control c language.

应用背景在串行口控制通过LabVIEW工具使用机器人控制关键技术在串行口控制通过LabVIEW工具使用机器人控制

嵌入式操作系统的应用.rar-embedded operating system applications. Rar

看完三幅mp3电路原理图，你就可以自己在家DIY自己的mp3了，试试吧，此图来自于mp3生产厂家。-three mp3 reading circuit schematics, you can own their own home DIY mp3, try playing this map from MP3 manufacturers.

ISE 9.2 serials working

FPGA的数码相框，实现SD卡内图片的读取显示，代码风格不错，有详细注释，对初学者很有用， 希望对各位有所帮助，谢谢！

uClinux基于S3C44B0X打印机驱动，EpSON微型打印机-uClinux-based S3C44B0X printer driver, EpSON micro-printer

凌阳unsp，61实验箱自检程序。代码比较全-Sunplus unsp, 61 self-test procedure experimental boxes. Comparison of the entire code

这是支持MF RC500 MIFARE 读写集成电路IC的有关射频设计的应用笔记。意在提供对MIFARE 射频接口（ISO 14443A）所需的理解来设计具体天线应用和匹配电路，为了使无接触MIFARE卡通信有最优表现。本文给出了系统的RF部分背景，以及如何为标准应用设计和调试天线的过程概述。详细说明了两种不同的天线和匹配概念以及它们的设计实例。还描述了完整的调试天线的步骤。作为附件的一部分，有兴趣的读者会发现RF接口的详细理论描述-This is to support reading and writing IC MF RC500 MIFARE RF IC design of the Application Notes. Intended to provide MIFARE RF Interface (ISO 14443A) designed to understand the requirements of specific applications and antenna matching circuits, in order to make contactless MIFARE cards have the best communication performance. In this paper, the RF part of the background of the system, as well as standard application for the design and debugging process of an overview of the antenna. Detailed description of the two different concepts of antennas and matching, as well as their design. Also a complete description of the steps to debug the antenna. As part of the annex, interested readers will find the detailed theory of RF Interface Description