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MP3播放器开发源码及电路图
应用背景MP3播放器开发源码及电路图,使用AT89C51SNDIC-R0开发,有原理图和源代码,这款MP3播放器以at89c51snd1c为核心,以硬盘为存储介质,液晶屏为双行显示,每行显示7.5个汉字,这块液晶屏以ST7920作为主控制器,内部集成8129个汉字,液晶屏在这个播放器中用来显示歌曲名称以及一些播放状态。关键技术1)MCS51内核,可以利用单片及开发软件Keil软件方便开发mp3播放器,无需特殊软件平台;
2)MPEG I/II-Layer 3 hardware decoder
.独立MP3 Decoder
.支持48,44.1,32,24,22.05,16khz取样频率
.支持软件31阶音量控制,高中低音均衡控制
.重低音效果
3)集成DAC部件,支持PCM,IIS格式;
4)64K字节片上代码存储空间(100K次擦写寿命)
5)4K字节boot flash memory,USB/UART下载代码
6)集成USB1.1 device部件
7)MMC卡接口
8)IDE/ATAPI接口(HDD/CD-ROM Interface)
9)2通道ADC,8Khz取样
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关于该芯片的具体信息,可以访问www.atmel.com获取at89c51snd1c的datasheet.
这款MP3播放器以at89c51snd1c为核心,以
- 2022-02-27 02:59:08下载
- 积分:1
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matlab格拉布斯代码
说明: 应用格罗布斯原则剔除粗大误差,基于matlab(The application of grobus principle to eliminate gross errors)
- 2019-12-05 03:35:11下载
- 积分:1
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FX CONTRASE?AS
说明: UNLOCK PASSWORD MITUSIBISHI PLC FX3U LEVEL2 FX3G
- 2020-03-25 06:41:34下载
- 积分:1
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磁盘记录方式的模拟
磁盘记录方式的模拟-disk recording mode simulation
- 2022-01-22 06:35:08下载
- 积分:1
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Ruby.Programming.Language.Oreilly
本书的风格跟C语言的经典《The C Programming Language》相似,作者同样也是著名技术作家和语言缔造者的组合。本书与一般的Ruby语言图书相比,除了介绍如何使用Ruby语言外,还讲述了Ruby的实现原理及内部运作机制。堪称Ruby之经典之作(The Ruby Programming Language is the authoritative guide to Ruby and provides comprehensive coverage of versions 1.8 and 1.9 of the language. It was written (and illustrated!) by an all-star team:
• David Flanagan, bestselling author of programming language "bibles" (including JavaScript: The Definitive Guide and Java in a Nutshell) and committer to the Ruby Subversion repository.
• Yukihiro "Matz" Matsumoto, creator, designer and lead developer of Ruby and author of Ruby in a Nutshell, which has been expanded and revised to become this book.
• why the lucky stiff, artist and Ruby programmer extraordinaire.
This book begins with a quick-start tutorial to the language, and then explains the language in detail from the bottom up: from lexical and syntactic structure to datatypes to expressions and statements and on through methods, blocks, lambdas, closures, classes and modules.
The book also includes a long and thorough introduction to the rich API of the R)
- 2011-02-10 07:33:27下载
- 积分:1
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System_Identification
说明: matlab的系统辨识工具箱参考书,300多页,详尽说明(Matlab System Identification Toolbox reference books, more than 300 pages, illustrated in detail)
- 2020-08-24 20:38:16下载
- 积分:1
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double-xinhaoshiboqi
运用labview8.5软件,创建一个虚拟双通道示波器VI,并实现以下功能:
1、连续采集电压信号,并存储。
2、实现对电压信号的显示处理、实时记录、回放记录,并且将电压信号的算术平均值可存档于excel文档,可读取。(Labview8.5 software used to create a virtual two-channel oscilloscope VI, and to achieve the following functions: 1, continuous voltage signal acquisition and storage. 2, to achieve the display of the voltage signal processing, real-time recording, playback record, and the arithmetic mean of the voltage signal can be archived in the excel document, can be read.)
- 2011-05-18 09:40:54下载
- 积分:1
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ERA(1)
说明: 这个ERA参数辨识相对来完整,用来求振型,固有频率和阻尼比(This era parameter identification is relatively complete)
- 2019-12-26 17:31:47下载
- 积分:1
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4bujiexiangwei
四步相移解相位,这是一个DEMO,里面内容很详细(The four step phase solution phase)
- 2018-03-27 10:59:40下载
- 积分:1
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4,OV2640资料
说明: The latest OpenCV2.0 visual library. As the VS can not be called directly, so first use CMake to export VC++ project file, and then VS2008 to compile OpenCV Debug and Release versions of libraries can be generated VC++ 2008 Express called OpenCV dynamic libraries.
- 2020-06-23 17:40:02下载
- 积分:1