A Computer-On-Module, or COM, is a Module with all components necessary for a bootable host computer, packaged as a super component. A COM requires a Carrier Board to bring out I/O and to power up. COMs are used to build single board computer solutions and offer OEMs fast time-to-market with reduced development cost. Like integrated circuits, they provide OEMs with significant freedom in meeting form-fit-function requirements. For all these reasons the COM methodology has gained much popularity with OEMs in the embedded industry. COM Express® is an open industry standard for Computer-On-Modules. It is designed to be future proof and to provide a smooth transition path from legacy parallel interfaces to LVDS (Low Voltage Differential Signaling) interfaces. These include the PCI bus and parallel ATA on the one hand and PCI Express and Serial ATA on the other hand.
上传时间： 2013-11-05
上传用户：Wwill
The CC1101 is a low-cost sub- 1 GHztransceiver designed for very low-powerwireless applications. The circuit is mainlyintended for the ISM (Industrial, Scientific andMedical) and SRD (Short Range Device)frequency bands at 315, 433, 868, and 915MHz, but can easily be programmed foroperation at other frequencies in the 300-348MHz, 387-464 MHz and 779-928 MHz bands.CC1101 is an improved and code compatibleversion of the CC1100 RF transceiver. Themain improvements on the CC1101 include:
上传时间： 2013-11-12
上传用户：363186
Linear Technology offers some of the highest performance RF and signal chain solutions for wireless and cellularinfrastructure. These products support worldwide standards including, LTE, WiMAX, GSM,W-CDMA, TD-SCDMA,CDMA, and CDMA2000. Other wireless systems include broadband microwave data links, secure communications,satellite receivers, broadband wireless access, wireless broadcast systems, RFID readers and cable infrastructure
上传时间： 2013-11-04
上传用户：kiklkook
The LPC1850/30/20/10 are ARM Cortex-M3 based microcontrollers for embeddedapplications. The ARM Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC1850/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals. The ARMCortex-M3 CPU also includes an internal prefetch unit that supports speculativebranching.The LPC1850/30/20/10 include up to 200 kB of on-chip SRAM data memory, a quad SPIFlash Interface (SPIFI), a State Configuration Timer (SCT) subsystem, two High-speedUSB controllers, Ethernet, LCD, an external memory controller, and multiple digital andanalog peripherals.
上传时间： 2014-12-31
上传用户：zhuoying119
The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals, andincludes an internal prefetch unit that supports speculative branching. The ARMCortex-M4 supports single-cycle digital signal processing and SIMD instructions. Ahardware floating-point processor is integrated in the core.The LPC4350/30/20/10 include an ARM Cortex-M0 coprocessor, up to 264 kB of datamemory, advanced configurable peripherals such as the State Configurable Timer (SCT)and the Serial General Purpose I/O (SGPIO) interface, two High-speed USB controllers,Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals
上传时间： 2013-10-28
上传用户：15501536189
The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.
上传时间： 2014-01-17
上传用户：Altman
This book evolved over the past ten years from a set of lecture notes developed while teaching the undergraduate Algorithms course at Berkeley and U.C. San Diego. Our way of teaching this course evolved tremendously over these years in a number of directions, partly to address our students' background (undeveloped formal skills outside of programming), and partly to reect the maturing of the eld in general, as we have come to see it. The notes increasingly crystallized into a narrative, and we progressively structured the course to emphasize the story line implicit in the progression of the material. As a result, the topics were carefully selected and clustered. No attempt was made to be encyclopedic, and this freed us to include topics traditionally de-emphasized or omitted from most Algorithms books.
标签： Algorithms 算法
上传时间： 2013-11-11
上传用户：JamesB
简单电子琴的51单片机程序 #include<reg51.h> //包含51单片机寄存器定义的头文件 sbit P14=P1^4; //将P14位定义为P1.4引脚 sbit P15=P1^5; //将P15位定义为P1.5引脚 sbit P16=P1^6; //将P16位定义为P1.6引脚 sbit P17=P1^7; //将P17位定义为P1.7引脚 unsigned char keyval; //定义变量储存按键值 sbit sound=P2^0; //将sound定义为P2.0 unsigned int C; //全局变量，储存定时器的定时常数 unsigned int f; //全局变量，储存音阶的频率 //以下是C调低音的音频宏定义 #define l_dao 262 //将“l_dao”宏定义为低音“1”的频率262Hz #define l_re 294 //将“l_re” 宏定义为低音“2”的频率294Hz #define l_mi 330 //将“l_mi” 宏定义为低音“3”的频率330Hz #define l_fa 349 //将“l_fa” 宏定义为低音“4”的频率349Hz #define l_sao 392 //将“l_sao”宏定义为低音“5”的频率392Hz #define l_la 440 //将“l_la” 宏定义为低音“6”的频率440Hz #define l_xi 494 //将“l_xi” 宏定义为低音“7”的频率494Hz //以下是C调中音的音频宏定义 #define dao 523 //将“dao”宏定义为低音“1”的频率Hz #define re 587 //将“re” 宏定义为低音“2”的频率Hz #define mi 659 //将“mi” 宏定义为低音“3”的频率Hz #define fa 698 //将“fa” 宏定义为低音“4”的频率Hz #define sao 784 //将“sao”宏定义为低音“5”的频率Hz #define la 880 //将“la” 宏定义为低音“6”的频率Hz #define xi 988 //将“xi” 宏定义为低音“7”的频率Hz
上传时间： 2013-11-09
上传用户：tian126vip
解压包包含了C语言入门经典教程和Visuak c++软件 【基本简介】 Visual C++是一个功能强大的可视化软件开发工具。自1993年Microsoft公司推出Visual C++1.0后，随着其新版本的不断问世，Visual C++已成为专业程序员进行软件开发的首选工具。 虽然微软公司推出了Visual C++.NET(Visual C++7.0)，但它的应用的很大的局限性，只适用于Windows 2000,Windows XP和Windows NT4.0。所以实际中，更多的是以Visual C++6.0为平台。 Visual C++6.0不仅是一个C++编译器，而且是一个基于Windows操作系统的可视化集成开发环境（integrated development environment,IDE）。Visual C++6.0由许多组件组成，包括编辑器、调试器以及程序向导AppWizard、类向导Class Wizard等开发工具。 这些组件通过一个名为Developer Studio的组件集成为和谐的开发环境。 在Visual C++ 6.0 企业版的基础上集成官方的SP6升级补丁制作而成！免序列号，安装完即可使用，无需再打补丁！ 【使用方法】 有些朋友反应在安装后出现 "Error spawning error" 可以看看下面绿色软件找到的一些解决方案： 点击VC“TOOLS（工具）”—>“Option（选择）”—>“Directories（目录）”重新设置“Excutable Fils、Include Files、Library Files、Source Files”的路径。很多情况可能就一个盘符的不同（例如你的VC装在C，但是这些路径全部在D），改过来就OK了。
上传时间： 2013-10-09
上传用户：hui626493
C语言函数大全，已包含绝大部分的函数。每个函数包含函数名，功能，用法，举例，内容详尽。希望对大家有所帮助~~ 函数名: abort 功 能: 异常终止一个进程 用 法: void abort(void); 程序例: #include #include int main(void) { printf("Calling abort()\n"); abort(); return 0; /* This is never reached */ } 函数名: abs 功 能: 求整数的绝对值 用 法: int abs(int i); 程序例: #include #include int main(void) { int number = -1234; printf("number: %d absolute value: %d\n", number, abs(number)); return 0; }
上传时间： 2013-12-06
上传用户：feifei0302
