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 ....................... 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 支持FAT16，一个分区，不支持FAT32, USB1.1,速度有点慢
上传时间： 2013-12-20
上传用户：电子世界
SDL Library Documentation. The SDL library is designed to make it easy to write games that run on Linux, *BSD, MacOS, Win32 and BeOS using the various native high-performance media interfaces, (for video, audio, etc) and presenting a single source-code level API to your application. SDL is a fairly low level API, but using it, completely portable applications can be written with a great deal of flexibility.
标签： Documentation SDL designed Library
上传时间： 2015-06-23
上传用户：nanxia
8051 monitor programm: - use external ram to run user program - use eeprom to save user program - provide single step debug, can read internal register and ram
上传时间： 2015-07-11
上传用户：zhichenglu
county, random population coordinates were generated using the complete spatial randomness (CSR) function in S-PLUS. Then, the background information was attached to each individual county based on the county?s distribution for the class of interest. Finally, all counties were merged into a single dataset that describes the whole state
标签： coordinates population randomness generated
上传时间： 2014-01-18
上传用户：hn891122
intel IXP400系列cpu（2.3版）的库文件，包括微码，access layer和上层，所有的软件。 适合于做基于ixp400开发的人员
上传时间： 2013-12-10
上传用户：lanhuaying
关于FPGA流水线设计的论文 This work investigates the use of very deep pipelines for implementing circuits in FPGAs, where each pipeline stage is limited to a single FPGA logic element (LE). The architecture and VHDL design of a parameterized integer array multiplier is presented and also an IEEE 754 compliant 32-bit floating-point multiplier. We show how to write VHDL cells that implement such approach, and how the array multiplier architecture was adapted. Synthesis and simulation were performed for Altera Apex20KE devices, although the VHDL code should be portable to other devices. For this family, a 16 bit integer multiplier achieves a frequency of 266MHz, while the floating point unit reaches 235MHz, performing 235 MFLOPS in an FPGA. Additional cells are inserted to synchronize data, what imposes significant area penalties. This and other considerations to apply the technique in real designs are also addressed.
标签： investigates implementing pipelines circuits
上传时间： 2015-07-26
上传用户：CHINA526
unicap provides an uniform access to video capture devices. Currently you can access v4l, v4l2, IIDC 1394 ( DCAM ) cameras and video to firewire converters with a single API. New devices can be added via a plugin system
标签： access Currently provides capture
上传时间： 2015-08-07
上传用户：cjl42111
A complete set of bit banged, software driven I2C routines I created for any PIC device - and they work!! These functions are single master only functions, and are ideal for communicating with things like EEPROMs, LCD Drivers, ADC Converters etc
标签： complete routines software created
上传时间： 2013-12-17
上传用户：王小奇
Introduction to the MSN Messenger Activity SDK --- --- --- --- --- --- --- --- --- --- --- --- --- -- The MSN® Messenger Activity software development kit (SDK) contains technical information about how to develop and test single-user and multiuser applications by using the Activity object model. The SDK also provides detailed information about the MSN development and testing requirements that your Activity must meet, and how to increase the usage of your MSN Messenger Activity application.
标签： Introduction Messenger Activity the
上传时间： 2015-09-06
上传用户：ruan2570406
The source code samples for chapter 2, 4, 6, and 8 are contained in the EvenChapters project. Those chapters all reference various aspects of this single project. The source code for the BullsEye control (chapter 10 example) is in the BullEyeCtl project. The source samples for the other chapters are provided in the Chapter XX sub-directories.
标签： EvenChapters contained chapter samples
上传时间： 2015-09-07
上传用户：yuchunhai1990
