Nios II定制指令用户指南：With the Altera Nios II embedded processor, you as the system designer can accelerate time-critical software algorithms by adding custom instructions to the Nios II processor instruction set. Using custom instructions, you can reduce a complex sequence of standard instructions to a single instruction implemented in hardware. You can use this feature for a variety of applications, for example, to optimize software inner loops for digital signal Processing (DSP), packet header Processing, and computation-intensive applications. The Nios II configuration wizard,part of the Quartus® II software’s SOPC Builder, provides a graphical user interface (GUI) used to add up to 256 custom instructions to the Nios II processor. The custom instruction logic connects directly to the Nios II arithmetic logic unit (ALU) as shown in Figure 1–1.
上传时间： 2013-10-12
上传用户：kang1923
Arduino，是一块基于开放源代码的USB接口Simple i/o接口板（包括12通道数字GPIO，4通道PWM输出，6-8通道10bit ADC输入通道），并且具有使用类似Java,C语言的IDE集成开发环境。 让您可以快速使用Arduino语言与Flash或Processing…等软件，作出互动作品。 Arduino可以使用开发完成的电子元件例如Switch或sensors或其他控制器、LED、步进马达或其他输出装置。Arduino也可以独立运作成为一个可以跟软件沟通的接口，例如说：flash、Processing、Max/MSP、VVVV 或其他互动软件…。Arduino开发IDE接口基于开放源代码原，可以让您免费下载使用开发出更多令人惊艳的互动作品。 特色： 1、开放源代码的电路图设计，程序开发接口免费下载，也可依需求自己修改。 2、使用低价格的微处理控制器(ATMEGA8或ATmega128)。可以采用USB接口供电，不需外接电源。也可以使用外部9VDC输入 3、Arduino支持ISP在线烧，可以将新的“bootloader”固件烧入ATmega8或ATmega128芯片。有了bootloader之后，可以通过串口或者USB to Rs232线更新固件。 4、可依据官方提供的Eagle格式PCB和SCH电路图，简化Arduino模组，完成独立运作的微处理控制。可简单地与传感器，各式各样的电子元件连接(EX：红外线,超音波,热敏电阻,光敏电阻,伺服马达,…等) 5、支持多种互动程序，如：Flash、Max/Msp、VVVV、PD、C、Processing……等 6、应用方面，利用Arduino，突破以往只能使用鼠标，键盘，CCD等输入的装置的互动内容，可以更简单地达成单人或多人游戏互动。
标签： Arduino
上传时间： 2013-10-17
上传用户：cuiyashuo
Arduino 是一块基于开放原始代码的Simple i/o 平台，并且具有使用类似java,C 语言的开发环境。让您可以快速 使用Arduino 语言与Flash 或Processing…等软件，作出互动作品。Arduino 可以使用开发完成的电子元件例如Switch 或Sensors 或其他控制器、ＬＥＤ、步进电机或其他输出裝置。Arduino 也可以独立运作成为一个可以跟软件沟通的平台，例如说：flash Processing Max/MSP VVVV 或其他互动软件… Arduino 开发ＩＤＥ界面基于开放原始码原则，可以让您免费下载使用开发出更多令人惊奇的互动作品。 什么是Roboduino? DFRduino 与Arduino 完全兼容，只是在原来的基础上作了些改进。Arduino 的IO 使用的孔座，做互动作品需要面包板和针线搭配才能进行，而DFRduino 的IO 使用针座，使用我们的杜邦线就可以直接把各种传感器连接到DFRduino 上。 特色描述 1． 开放原始码的电路图设计，程式开发界面免费下载，也可依需求自己修改!! 2． DFRduino 可使用ISP 下载线，自我將新的IC 程序烧入「bootloader」； 3． 可依据官方电路图，简化DFRduino 模组，完成独立云作的微处理控制器； 4． 可简单地与传感器、各式各样的电子元件连接(如：红外线,超声波,热敏电阻,光敏电阻,伺服电机等)； 5． 支援多样的互动程式 如: Flash,Max/Msp,VVVV,PD,C,Processing 等； 6． 使用低价格的微处理控制器(ATMEGA168V-10PI)； 7． USB 接口，不需外接电源，另外有提供9VDC 输入接口； 8． 应用方面，利用DFRduino，突破以往只能使用滑鼠，键盘，CCD 等输入的裝置的互动內容，可以更简单地达成单人或多人游戏互动。 性能描述 1． Digital I/O 数字输入/输出端共 0~13。 2． Analog I/O 模拟输入/输出端共 0~5。 3． 支持USB 接口协议及供电(不需外接电源)。 4． 支持ISP 下载功能。 5． 支持单片机TX/RX 端子。 6． 支持USB TX/RX 端子。 7． 支持AREF 端子。 8． 支持六組PWM 端子(Pin11,Pin10,Pin9，Pin6,Pin5,Pin3)。 9． 输入电压：接上USB 时无须外部供电或外部5V~9V DC 输入。 10．输出电压：5V DC 输出和3.3V DC 输出 和外部电源输入。 11．采用Atmel Atmega168V-10PI 单片机。 12．DFRduino 大小尺寸：宽70mm X 高54mm。 Arduino开发板图片
上传时间： 2013-10-30
上传用户：wangzhen1990
Abstract: This reference design explains how to power the Xilinx Zynq Extensible Processing Platform (EPP) and peripheral ICs using
上传时间： 2013-10-13
上传用户：peterli123456
This application note shows how to achieve low-cost, efficient serial configuration for Spartan FPGA designs. The approachrecommended here takes advantage of unused resources in a design, thereby reducing the cost, part count, memory size,and board space associated with the serial configuration circuitry. As a result, neither processor nor PROM needs to be fullydedicated to performing Spartan configuration.In particular, information is provided on how the idle Processing time of an on-board controller can be used to loadconfiguration data from an off-board source. As a result, it is possible to upgrade a Spartan design in the field by sending thebitstream over a network.
上传时间： 2013-11-01
上传用户：wojiaohs
The introduction of Spartan-3™ devices has createdmultiple changes in the evolution of embedded controldesigns and pushed Processing capabilities to the “almostfreestage.” With these new FPGAs falling under $20, involume, with over 1 million system gates, and under $5for 100K gate-level units, any design with programmablelogic has a readily available 8- or 16-bit processor costingless than 75 cents and 32-bit processor for less than $1.50.
上传时间： 2013-10-21
上传用户：ligi201200
WP369可扩展式处理平台-各种嵌入式系统的理想解决方案 ：Delivering unrivaled levels of system performance,flexibility, scalability, and integration to developers,Xilinx's architecture for a new Extensible Processing Platform is optimized for system power, cost, and size. Based on ARM's dual-core Cortex™-A9 MPCore processors and Xilinx’s 28 nm programmable logic,the Extensible Processing Platform takes a processor-centric approach by defining a comprehensive processor system implemented with standard design methods. This approach provides Software Developers a familiar programming environment within an optimized, full featured,powerful, yet low-cost, low-power Processing platform.
上传时间： 2013-10-18
上传用户：cursor
The Xilinx Zynq-7000 Extensible Processing Platform (EPP) redefines the possibilities for embedded systems, giving system and software architects and developers a flexible platform to launch their new solutions and traditional ASIC and ASSP users an alternative that aligns with today’s programmable imperative. The new class of product elegantly combines an industrystandard ARMprocessor-based system with Xilinx 28nm programmable logic—in a single device. The processor boots first, prior to configuration of the programmable logic. This, along with a streamlined workflow, saves time and effort and lets software developers and hardware designers start development simultaneously.
上传时间： 2013-10-09
上传用户：evil
针对嵌入式机器视觉系统向独立化、智能化发展的要求，介绍了一种嵌入式视觉系统--智能相机。基于对智能相机体系结构、组成模块和图像采集、传输和处理技术的分析，对国内外的几款智能相机进行比较。综合技术发展现状，提出基于FPGA+DSP模式的硬件平台，并提出智能相机的发展方向。分析结果表明，该系统设计可以实现脱离PC运行，完成图像获取与分析，并作出相应输出。 Abstract: This paper introduced an embedded vision system-intelligent camera ，which was for embedded machine vision systems to an independent and intelligent development requirements. Intelligent camera architecture， component modules and image acquisition， transmission and Processing technology were analyzed. After comparing integrated technology development of several intelligent cameras at home and abroad， the paper proposed the hardware platform based on FPGA+DSP models and made clear direction of development of intelligent cameras. On the analysis of the design， the results indicate that the system can run from the PC independently to complete the image acquisition and analysis and give a corresponding output.
上传时间： 2013-11-14
上传用户：无聊来刷下
波长信号的解调是实现光纤光栅传感网络的关键，基于现有的光纤光栅传感器解调方法，提出一种基于FPGA的双匹配光纤光栅解调方法，此系统是一种高速率、高精度、低成本的解调系统，并且通过引入双匹配光栅有效地克服了双值问题同时扩大了检测范围。分析了光纤光栅的测温原理并给出了该方案软硬件设计，综合考虑系统的解调精度和FPGA的处理速度给出了基于拉格朗日的曲线拟合算法。 Abstract: Sensor is one of the most important application of the fiber grating. Wavelength signal demodulating is the key techniques to carry out fiber grating sensing network， based on several existing methods of fiber grating sensor demodulation inadequate， a two-match fiber grating demodulation method was presented. This system is a high-speed， high precision， low-cost demodulation system. And by introducing a two-match grating effectively overcomes the problem of double value while expands the scope of testing. This paper analyzes the principle of fiber Bragg grating temperature and gives the software and hardware design of the program. Considering the system of demodulation accuracy and Processing speed of FPGA，this paper gives the curve fitting algorithm based on Lagrange.
上传时间： 2013-10-10
上传用户：zxc23456789
