本程序是MP3的解码程序，可以用VC编译或者用GNU编译，可以运行在PC机上。 本程可以MP3文件解压为WAV文件 TEST 中的代码可以播放WAV文件 有兴趣的朋友可以把这段mp3程序移植到开发板上，这样就可以用开发板播放MP3了。
上传时间： 2014-01-06
上传用户：songrui
UCOS/II for ICCAVR - The version of UCOS/II is 2.04 - the original port was done by Ole Saether for the IAR compiler. Jens E. Holtegaard ported one version using ICCAVR. Joerg Meyer did another port (using Jens port as a start?). This is basically Joerg s port plus a little bit of changes and documentation by me. - YOU MUST DOWNLOAD THE MAIN PART OF THE UCOS/II FROM THE UCOS/II WEBSITE http://www.ucos-ii.com . The supplied project file assumes the portable source is in the ..\source directory. - Joerg has written couple document showing the stack frames etc. but it is in German :-) They are included in this directory. - The Timer2 overflow interrupt is used for Timer Tick. If you want to change that, modify os_cpu_c.c and os_cpu_a.s - I have tested this using ATMega103 with and without external RAM using AVR Studio simulator. See test1.c test program. Both Code Compressed (PRO) and STD versions have been tested.
标签： UCOS original Saether version
上传时间： 2015-11-14
上传用户：ippler8
MSComm 控件通过串行端口传输和接收数据，为应用程序提供串行通讯功能。MSComm控件在串口编程时非常方便，程序员不必去花时间去了解较为复杂的API函数，而且在VC、VB、Delphi等语言中均可使用。 Microsoft Communications Control（以下简称MSComm）是Microsoft公司提供的简化Windows下串行通信编程的ActiveX控件，它为应用程序提供了通过串行接口收发数据的简便方法。具体的来说，它提供了两种处理通信问题的方法：一是事件驱动(Event－driven)方法，一是查询法。
上传时间： 2015-11-14
上传用户：tianyi223
This Source.zip has three application code folders containing .java and .class files and two .jar files as follows: 1. desktop-side_JXTA4JMS 2. mobile-side_JXTA4JMS 3. JMS Test Client 4. Listener.jar 5. JMSTestClient.jar We now explain execution steps, we followed, to run this JXTA4JMS application. Before we try we require Application softwares and need to configure JXTA relay and J2EE server.
标签： application containing and folders
上传时间： 2014-11-17
上传用户：z1191176801
Universal Serial Bus Implementers Forum Full and Low Speed Electrical and Interoperability Compliance Test Procedure
标签： Interoperability Implementers Electrical Universal
上传时间： 2015-11-18
上传用户：cc1915
In addition to individual algorithm, Demonstration System is a "data structure" (C language version) book algorithm corresponding to the code (CPP) and the test operating procedures (VC + +6.0 to the EXE). Through the system can demonstrate that the algorithm source code and operating results
标签： Demonstration individual algorithm structure
上传时间： 2013-12-24
上传用户：change0329
Software Testing, Second Edition provides practical insight into the world of software testing and quality assurance. Learn how to find problems in any computer program, how to plan an effective test approach and how to tell when software is ready for release. Updated from the previous edition in 2000 to include a chapter that specifically deals with testing software for security bugs, the processes and techniques used throughout the book are timeless. This book is an excellent investment if you want to better understand what your Software Test team does or you want to write better software.
标签： practical Software provides software
上传时间： 2014-08-01
上传用户：zhaiyanzhong
linux filesystem bootdisk-howto.This document describes how to design and build boot/root diskettes for Linux. These disks can be used as rescue disks or to test new system components. You should be reasonably familiar with system administration tasks before attempting to build a bootdisk. If you just want a rescue disk to have for emergencies,
标签： bootdisk-howto filesystem describes diskettes
上传时间： 2015-11-22
上传用户：wanghui2438
This leon3 design is tailored to the Altera NiosII Startix2 Development board, with 16-bit DDR SDRAM and 2 Mbyte of SSRAM. As of this time, the DDR interface only works up to 120 MHz. At 130, DDR data can be read but not written. NOTE: the test bench cannot be simulated with DDR enabled because the Altera pads do not have the correct delay models. * How to program the flash prom with a FPGA programming file 1. Create a hex file of the programming file with Quartus. 2. Convert it to srecord and adjust the load address: objcopy --adjust-vma=0x800000 output_file.hexout -O srec fpga.srec 3. Program the flash memory using grmon: flash erase 0x800000 0xb00000 flash load fpga.srec
标签： Development Startix2 tailored Altera
上传时间： 2014-01-19
上传用户：chongcongying
其中sound.c 用于录音和回放。其中特别需要注意的是:1。目前声卡似乎不能打开全双工，所以如果fd = open("/dev/dsp", O_RDWR) ，则无法录音和回放。只能分别设置RDONLY和WRONLY。即半双工方式。否则，就是在录音的时候可以听见，但是无法回放。分析下来似乎是IIC总线中只分配了一个通道给声卡，或者是只启用了一个通道，所以无法录音和放音同步进行。解决方法就是分别以RDONLY方式打开进行录音和WRONLY方式打开进行放音。 Sound1.c用于将录音保存在test.wav文件中，并利用cast test.wav > /dev/sound/dsp回放文件。此处需要注意的是，录音频率必须是44100才能正确回放。否则就会出现类似快放的效果。分析应该是cast方式利用了dsp的默认播放频率44100，所以如果录音的时候低于这个频率，这放的时候就会快放。 此外，设置采样率的时候必须设置成16bit，否则会提示出错。原因尚不知道，估计是与声卡有关。
上传时间： 2013-12-31
上传用户：cc1
