Abstract: This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input range and adjustable output low-dropout linear regulators (LDOs). Test results and hardware files are included.
標簽： MAXREFDES Lakewood Isolated Output
上傳時間： 2013-11-02
上傳用戶：fengzimili
Abstract: This document details the Riverside (MAXREFDES8#) subsystem reference design, a 3.3V input, 12V (15V) output, isolated power supply. The Riverside reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and one wide input range and adjustable output low-dropout linear regulator (LDO). Test results and hardware files are included.
標簽： Riverside MAXREFDES Isolated Output
上傳時間： 2013-11-16
上傳用戶：會稽劍客
Specifying the right reference and applying it correctly isa more difficult task than one might first surmise, consideringthat references are only 2- or 3-terminal devices.Although the word “accuracy” is most often spoken inreference to references, it is dangerous to use this wordtoo freely because it can mean different things to differentpeople. Even more perplexing is the fact that a referenceclassified as a dog in one application is a panacea inanother. This application note will familiarize the readerwith the various aspects of reference “accuracy” andpresent some tips on extracting maximum performancefrom any reference.
標簽： 電壓基準
上傳時間： 2013-10-15
上傳用戶：liuwei6419
針對傳統集成電路（ASIC）功能固定、升級困難等缺點，利用FPGA實現了擴頻通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核實現NCO模塊，在下變頻模塊調用了硬核乘法器并引入CIC濾波器進行低通濾波，給出了DQPSK解調的原理和實現方法，推導出一種簡便的引入?仔/4固定相移的實現方法。采用模塊化的設計方法使用VHDL語言編寫出源程序，在Virtex-II Pro 開發板上成功實現了整個系統。測試結果表明該系統正確實現了STEL-2000A的核心功能。 Abstract: To overcome drawbacks of ASIC such as fixed functionality and upgrade difficulty, FPGA was used to realize the core functions of STEL-2000A. This paper used the DDS IP core provided by ISE to realize the NCO module, called hard core multiplier and implemented CIC filter in the down converter, described the principle and implementation detail of the demodulation of DQPSK, and derived a simple method to introduce a fixed phase shift of ?仔/4. The VHDL source code was designed by modularity method , and the complete system was successfully implemented on Virtex-II Pro development board. Test results indicate that this system successfully realize the core function of the STEL-2000A.
上傳時間： 2013-11-06
上傳用戶：liu123
怎樣使用Nios II處理器來構建多處理器系統 Chapter 1. Creating Multiprocessor Nios II Systems Introduction to Nios II Multiprocessor Systems . . . . . . . . . . . . . . 1–1 Benefits of Hierarchical Multiprocessor Systems . . . . . . . . . . . . . . . 1–2 Nios II Multiprocessor Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 Multiprocessor Tutorial Prerequisites . . . . . . . . . . . . . . . . . . . . . . . 1–3 Hardware Designs for Peripheral Sharing . . . . . . . . . . . .. . . . . . . . 1–3 Autonomous Multiprocessors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3 Multiprocessors that Share Peripherals . . . . . . . . . . . . . . . . . . . . . . 1–4 Sharing Peripherals in a Multiprocessor System . . . . . . . . . . . . . . . . . 1–4 Sharing Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–6 The Hardware Mutex Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–7 Sharing Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 1–8 Overlapping Address Space . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–8 Software Design Considerations for Multiple Processors . . .. . . . . 1–9 Program Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–9 Boot Addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1–13 Debugging Nios II Multiprocessor Designs . . . . . . . . . . . . . . . . 1–15 Design Example: The Dining Philosophers’ Problem . . . . .. . . 1–15 Hardware and Software Requirements . . . . . . . . . . . . . . . .. . . 1–16 Installation Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–17 Creating the Hardware System . . . . . . . . . . . . . . .. . . . . . 1–17 Getting Started with the multiprocessor_tutorial_start Design Example 1–17 Viewing a Philosopher System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–18 Philosopher System Pipeline Bridges . . . . . . . . . . . . . . . . . . . . . 1–19 Adding Philosopher Subsystems . . . . . . . . . . . . . . . . . . . . . . . . . . 1–21 Connecting the Philosopher Subsystems . . . . . . . . . . . . .. . . . . 1–22 Viewing the Complete System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–27 Generating and Compiling the System . . . . . . . . . . . . . . . . . .. 1–28
上傳時間： 2013-11-21
上傳用戶：lo25643
針對傳統集成電路（ASIC）功能固定、升級困難等缺點，利用FPGA實現了擴頻通信芯片STEL-2000A的核心功能。使用ISE提供的DDS IP核實現NCO模塊，在下變頻模塊調用了硬核乘法器并引入CIC濾波器進行低通濾波，給出了DQPSK解調的原理和實現方法，推導出一種簡便的引入?仔/4固定相移的實現方法。采用模塊化的設計方法使用VHDL語言編寫出源程序，在Virtex-II Pro 開發板上成功實現了整個系統。測試結果表明該系統正確實現了STEL-2000A的核心功能。 Abstract: To overcome drawbacks of ASIC such as fixed functionality and upgrade difficulty, FPGA was used to realize the core functions of STEL-2000A. This paper used the DDS IP core provided by ISE to realize the NCO module, called hard core multiplier and implemented CIC filter in the down converter, described the principle and implementation detail of the demodulation of DQPSK, and derived a simple method to introduce a fixed phase shift of ?仔/4. The VHDL source code was designed by modularity method , and the complete system was successfully implemented on Virtex-II Pro development board. Test results indicate that this system successfully realize the core function of the STEL-2000A.
上傳時間： 2013-11-19
上傳用戶：neu_liyan
從s60平臺移植到UIQ平臺的例子代碼：In this code we shall consider taking a simple HelloWorld GUI application written for the Nokia’s Series 60 reference design and transforming it into a HelloWorld example for the UIQ reference design.
標簽： application HelloWorld consider taking
上傳時間： 2016-01-08
上傳用戶：xiaoyunyun
蠕蟲mydoom.a版本的完整源代碼，mydoom為internet上傳播很廣的蠕蟲，以傳播能力強而聞名于世，蠕蟲為c語言編寫，很有借鑒意義。-worm version of the complete source code, mydoom internet for a wide spread of the worm to spread the renowned
上傳時間： 2013-12-12
上傳用戶：zhoujunzhen
This document is intended to serve as an introduction to Wavelet processing through a set of Matlab experiments. These experiments will gives an overview of three fundamental tasks in signal and image processing : signal, denoising and compression. These scripts are selfs contents (needed additional Matlab functions can be downloaded while reading the lectures). Each one of these five lectures should take between 1h and 2h in order to tests the various features of the scripts. One should copy/paste the provided code into a file names e.g. tp1.m, and launch the script directly from Matlab comand line > tp1 . Some of the scripts contains "holes" that you should try to fill on your own. I also provide the complete correction of these lectures as a set of Matlab scripts, but you should try as much as possible to avoid using them.
標簽： introduction processing document intended
上傳時間： 2016-03-22
上傳用戶：qlpqlq
飛機訂票系統，實現訂票，退票，查詢 the banking system relates to multi-threaded, socket programming, and Singleton design pattern. Notes for the complete source Gilmour, documentation, together with the development process
標簽： 飛機
上傳時間： 2016-04-02
上傳用戶：ma1301115706
