電子書-RTL Design Style Guide for Verilog HDL540頁A FF having a fixed input value is generated from the description in the upper portion of Example 2-21. In this case, ’0’ is output when the reset signal is asynchronously input, and ’1’ is output when the START signal rises. Therefore, the FF data input is fixed at the power supply, since the typical value ’1’ is output following the rise of the START signal. When FF input values are fixed, the fixed inputs become untestable and the fault detection rate drops. When implementing a scan design and converting to a scan FF, the scan may not be executed properl not be executed properly, so such descriptions , so such descriptions are not are not recommended. recommended.[1] As in the lower part of Example 2-21, be sure to construct a synchronous type of circuit and ensure that the clock signal is input to the clock pin of the FF. Other than the sample shown in Example 2-21, there are situations where for certain control signals, those that had been switched due to the conditions of an external input will no longer need to be switched, leaving only a FF. If logic exists in a lower level and a fixed value is input from an upper level, the input value of the FF may also end up being fixed as the result of optimization with logic synthesis tools. In a situation like this, while perhaps difficult to completely eliminate, the problem should be avoided as much as possible.
標簽： RTL verilog hdl
上傳時間： 2022-03-21
上傳用戶：canderile
如果在調諧器或電視機附近使用本機或任何其他使用微處理器的電子設備，則可能會產生圖像的噪聲或干擾。如果發生這種情況，請采取以下步驟將本機安裝在盡可能遠離調諧器或T的地方。遠離調諧器或T，遠離本機的電源線和輸入/輸出連接電纜。尤其在使用室內天線或300歐姆饋線。我們建議使用室外天線和75 Q / ohm同軸電纜Noise or disturbance of the picture may be generated if this unit or any other electronic equipment using microprocessors is used near a tuner or TV If this happens, take the following stepsInstall this unit as far away as possible from the tuner or T Run the antenna wires from the tuner or T away from this unit ' s power supply cord and input/output connection cables. Noise or disturbance tends to occur particularly when using indoor antennas or300 ohm feeder wires. We recommend using outdoor antennas and 75 Q/ohm coaxial cables
標簽： 功放
上傳時間： 2022-04-22
上傳用戶：
基于TMS320F28335的超聲波流量計硬件原理圖+軟件源碼本文以TMS320F28335 處理器為核心，設計一種用于管道流量測量的超聲波流量計。系統硬件由核心板，超聲波發射和接收電路，切換電路，超聲換能器，基于ADS805 的高速信號采集電路，人機交互以及電源等模塊構成。采用時差法進行管道流量測量，時差測量采用SCOT 加權的廣義互相關時延估計算法。本論文設計的超聲波流量計具有測量速度快、準確性好、成本低等優點。關鍵字：C2000，超聲波，流量，廣義互相關算法AbstractA kind of ultrasonic flowmeter using for the pipe flow measurement is designed based onTMS320F28335 in this paper. The system hardware consists of the following parts: the core board,ultrasonic signal transmitter and receiver circuits, switch circuit, ultrasonic transducer, signalacquisition circuit based on ADS805, human-computer interaction module and power supplymodule, etc. The system use the method of time difference for pipeline flow measurement and thetime difference is calculated by the time-delay algorithm of SCOT weighted generalizedcross-correlation. The ultrasonic flowmeter has the features of high testing speed, high precisionand low cost, etc.Keywords: C2000,Ultrasonic, Flow, Generalized Cross-Correlation Algorithm
標簽： tms320f28335 超聲波流量計
上傳時間： 2022-05-06
上傳用戶：
In this presentation, we will look at what the Serial Peripheral Interface, otherwise known as the SPI, is. and how it is used to communicate data to and from the PICmicro microcontroller.SPl is frequently used when few 1/O lines are available, but communication between two or more devices must be fast and easy to implement.In this presentation, we will discuss the following topics: We will first cover an Overview of SPI This section of the tutorial will introduce you to SPI and its concepts.Next, we will examine the use of SPI on the PICmicro MCU.The details of how SPI is implemented on a PICmicro device will be examined.Then, a Code Walkthrough will be given.The walkthough will explore code for both an SPI Master and SPI Slave. The example will have the Master generate data for sending to the slave.Finally, there will be a few resources given at the end of the presentation. These resources will allow you to explore in more detail the SPI interface
標簽： spi協議
上傳時間： 2022-06-20
上傳用戶：
PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
上傳時間： 2022-07-08
上傳用戶：
The following table covers the main features offered by the MT7628KN and MT7628AN. Overall, the MT7628KN supports the requirements of an entry level AP/router, while the more advanced MT7628AN supports a number of interfaces together with a large maximum RAM capacity.Features· Embedded MIPS24KEc (575/580 MHz) with 64KBl-Cache and 32KB D-Cache·2T2R 2.4GHz with 300 Mbps PHY data rate· Legacy 802.11b/g and HT 802.11n modes·20/40 MHz channel bandwidth· Reverse Data Grant(RDG)· Maximal Ratio Combining(MRC)· Space Time Block Coding(STBC)· MCM 8 Mbytes DDR1 KGD(MT7628KN)·16-bit DDR1/2 up to 128/256 Mbytes(MT7628AN/KN)· SPI/SD-XC/eMMC·x1 USB 2.0 Host,x1 Ple Root Complex·5-port 10/100 FE PHY
標簽： mt7628
上傳時間： 2022-07-25
上傳用戶：
VIP專區-嵌入式/單片機編程源碼精選合集系列（33）資源包含以下內容：1. Embedded Web Server Architecture for Web-based Element and Network Management關于嵌入式Web服務器的完整論文.2. 這是一個電子時鐘程序,里面有顯示時間子程序,還有調整,鍵盤等子程序!.3. 這是一個可調的PWM波程序,稍作修改就可以控制電機轉速或其他設備!.4. 這是實驗室在進行嵌入式開發的時候的首選.5. LCD 仿真器 一、概述 LCD仿真器是一種電子產品的輔助開發工具。目前LCD（液晶屏）在各種電子產品的使用越來越廣泛.6. 提供了與《嵌入式實時操作系統及應用開發》教材配套的實驗系統軟件.7. 摩托羅拉公司發布的QL4的Lin總線kit,freescale網站上花錢買的.8. RTLinux的介紹.9. 嵌入式系統教學教案.10. 在UNIX 系統下得到字符點陣信息嵌入式系統設計中消除內存丟失的策略matlab循環變量小技巧hard disk 1.8# device driverC程序中如何轉換GB2312.11. 針對周立功2104板子的一個秒表程序,可以通過按鍵分別查看秒表的時間,分,秒..12. 難得一見的"EDA技術與PLD設計"課程的課件.13. C語言函數庫文件.14. 本程序用匯編語言編寫.15. 嵌入式系統設計中消除內存丟失的策略.16. 這是有關DM642開發板的相關幻燈片.17. 周立功2106板子的啟動程序代碼,包括初始化,中斷向量表,和頭文件..18. 嵌入式資料光盤,剛剛下的,還沒有來得及看,如果感興趣可以先看看,含有資料文檔..19. 320X240LCD仿真程序 320x240lcd仿真程序.20. 嵌入式我們老師的課件.優點用處..呵呵....呵呵后.21. MiniGui API函數大全及詳細介紹。.22. S3C2410開發板與PC機的通信 客戶端和 服務器端的代碼 以及makefile文件 服務器為開發板 執行 S3 PC機為客戶機 執行host.c.23. GIMP Dynamic Text是GIMP的插件程序.24. keil c公司網站下載的一些實例教程程序!.25. 移植到ＧＢＡ上運行的ＬＩＮＵＸ的代碼.26. 用protel 99 設計的可編程彩燈控制器 可顯示16個畫面 8*8矩陣.27. ucos for vc ucos compiled and run in vc.28. 嵌入式的綜合內容.29. 基于ARMs3c44b0的鍵盤輸入輸出i/o的在 led上顯示出來的程序.30. PC-Lint是一個歷史悠久.31. PC-Lint是一種靜態代碼檢測工具.32. C++ 的難學.33. TCP/IP Lean: Web Servers for Embedded Systems, Second Edition.34. 一個多功能的遙控編碼程序,其中有較為詳細的鍵盤掃描程序和用于推動紅外發射的發碼程序.35. eCos/RedBoot for勤研ARM AnywhereII(4510) 含全部源代碼.36. Windows CE是微軟為嵌入式設備打造的操作系統.37. 現在開發的硬件良好產品 結合C和ASM一起開發 可以混合用C里的函數庫.38. Altera recommends the following system configuration: * Pentium II 400 with 512-MB system memory (fa.39. Cyclone1C20的Nios開發板完整原理圖Protel格式.40. Interface Fiche Technique : Langage de programmation : Visual Basic 5.0 Support : Une version de Win.
上傳時間： 2013-04-15
上傳用戶：eeworm
