The Data Encryption Standard (DES) is a published federal encryption standard created to protect unclassified computer data and communications. The DES algorithm is the most widely used encryption algorithm in the world
标签： Encryption encryption published Standard
上传时间： 2017-04-18
上传用户：lili123
Synopsys' widely-used design constraints format, known as SDC, describes the "design intent" and surrounding constraints for synthesis, clocking, timing, power, test and environmental and operating conditions. SDC has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDC and numerous EDA companies have translators that can read and process SDC.
上传时间： 2018-07-13
上传用户：yalsim
首先下载软件，解压软件，安装在程序中找到SEGGER,选里面的J-FLASH，进入界面，刚开始的那个界面可以忽略，不用建project也可以；单击菜单栏的“Options---Project settings”打开设置，进行jlink配置;正在General选项，选择“USB”，一般都是默认配置，确认一下即可;然后在CPU选项，选择芯片型号，先选择“Device”才能选择芯片型号，芯片型号，要根据你使用的芯片进行选择;在Target interface选项 里面选择SWD模式;首先Target里面选“Connection”连接目标芯片，然后 Target--Auto进行程序烧写;首先Target里面选择“Connection”连接目标芯片，然后 Target--Auto进行程序烧写.SEGGER J-Links are the most widely used line of debug probes available today. They've proven their value for more than 10 years in embedded development. This popularity stems from the unparalleled performance, extensive feature set, large number of supported CPUs, and compatibility with all popular development environments.
标签： JLINK
上传时间： 2022-03-22
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本文主要介绍如何在Wado设计套件中进行时序约束，原文出自 xilinx中文社区。1 Timing Constraints in Vivado-UCF to xdcVivado软件相比于sE的一大转变就是约束文件，5E软件支持的是UcF（User Constraints file，而 Vivado软件转换到了XDc（Xilinx Design Constraints）。XDC主要基于SDc（Synopsys Design Constraints）标准，另外集成了Xinx的一些约束标准可以说这一转变是xinx向业界标准的靠拢。Altera从 TimeQuest开始就一直使用SDc标准，这一改变，相信对于很多工程师来说是好事，两个平台之间的转换会更加容易些。首先看一下业界标准SDc的原文介绍：Synopsys widely-used design constraints format, known as sDc, describes the design intent"and surrounding constraints for synthesis, clocking, timing, power, test and environmental and operating conditions. sDc has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDc and numerous EDa companies have translators that can read and process sDc
标签： vivado
上传时间： 2022-03-26
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以STC12C5A60S2单片机为控制核心,采用2.4G(JF24D)无线遥控模块进行无线发射与接收,设计了一种双电机遥控船模控制系统.该系统通过切换档杆实现前进后退,方向盘左右转动、暂停按钮等控制直流电机的正转、反转、暂停,使得电机驱动的遥控船模实现前进后退、左右转向、暂停等功能,有效解决了驱动功率小和船模之间相互干扰等问题,可广泛应用于遥控船模领域.Using STC12C5A60S2 single-chip microcomputer as the controller and 2.4 G(JF24D)wireless remote control module for wireless transmission and reception, a dual-motor remote control ship model control system is designed. The system realizes forward and backward by switching the gear lever. The steering wheel rotates left and right and the pause button controls the forward, reverse and pause of the dc motor. The remote controller of ship model driven by the motor realizes forward and backward, left and right steering, pause and other functions. The ship model control system can effectively solve the problems of small driving power and mutual interference between ship models, and can be widely used in the field of remote controller of ship model.
上传时间： 2022-03-27
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CAN总线是汽车上应用最广泛的车载网络总线,具有实时性强、可靠性高、成本低等优点。鉴于此,介绍了一种利用飞思卡尔系列单片机MC9S12XS128作为控制器,利用其内部的MSCAN模块、CAN收发器TJA1040等外围元件进行CAN总线通信节点设计。该设计能够实现CAN总线数据的发送与接收,可应用于汽车及其他各种CAN总线通信系统。CAN bus is the most widely used on-board network bus in automobiles. It has the advantages of realtime, high reliability and low cost. In view of this,this paper introduces the design of CAN bus communication node by using Freescale MC9S12XS128 as controller,using its internal MSCAN module,CAN transceiver TJA1040 and other peripheral components. This design can realize the sending and receiving of CAN bus data,and can be used in automobile and other CAN bus communication systems.
上传时间： 2022-03-27
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多功能智能遥控窗帘系统广泛地应用于家居、办公室等场合,同时也是智能家居的一部分。该设计主要利用STC89C52单片机核心电路、光敏电阻电路、步进电机电路、温湿度传感器、红外线控制电路、AD转换电路、LCD1602液晶显示屏等模块完成精确控制窗帘的开和关。multi-functional intelligent remote control curtain system is widely used in home,office and other occasions,and is also part of intelligent home.The design mainly uses STC89 C52 single-chip core circuit,photosensitive resistor circuit,stepping motor circuit,temperature and humidity sensor,infrared control circuit,AD conversion circuit,LCD1602 LCD display and other modules to achieve accurate control of the curtain opening and closing.
上传时间： 2022-03-28
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随着电磁阀在工业和日常应用的增多,其功耗越来越被人们所重视。通过对电磁阀驱动电路的研究,设计一套电磁阀节能驱动电路。不仅提高了电磁阀的响应时间,更重要的是降低了功耗,使电磁阀由工作在大电流状态下,变成大电流启动小电流维持的工作状态。减少了由电流过大引起的电磁阀线圈过热,增加了电磁阀的安全性。The power consumption of an electromagnetic valve is drawing increasingly more attentiori as it is widely used in industrial production and daily life. In this study, an energy - saving driving circuit of electromagnetic valves was designed. It can make an electromagnetic valve to start with a high current while work with a low current; thereby the power consumption can be reduced. Besides, it can shorten the response time of an electromagnetic valve and improve the security of the valve.
上传时间： 2022-04-16
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本文提出基于AD2S1210的旋变信号转换电路,给出了具体的电路实现方法和配置方法.相比以往的RDC方案,本系统具有精度高,设计灵活,可靠性高等特点,可广泛应用于各种伺服系统中.In this paper, the switching signal conversion circuit based on ADS1210 is proposed, and the specific circuit implementation and configuration method are given. Compared with the previous RDC scheme, this system has the characteristics of high precision, flexible design and high reliability, and can be widely used in various servo systems.
标签： ad2s1210
上传时间： 2022-05-04
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VIP专区-嵌入式/单片机编程源码精选合集系列（135）资源包含以下内容：1. AT89C52红外接收c源码 已经过调试 下载即可使用.2. 步进电机驱动控制技术及其应用设计研究 一编论文.3. Nucleus PLUS source code anasisy. An open source OS which is widely used in embedded development dom.4. 数字系统CAD 开发平台实验部分共有6 个实验.5. 12位ads7816的两种读取方式：SPI方式和手动方式.6. 可用于嵌入式编程学习.7. ADE7755应用于单相CPU卡表的硬件设计原理图.8. 电能表的结构原理介绍和工作原理介绍.9. 这是一个关于C＋＋编程规范的资料.10. C／C++bianchengguifan.11. 赛车程序：先对赛道和赛车建立模型.12. This document teach how you interface the microcontroller to the devices using i2c , spi and serial.13. 我收集的一些I2C的技术文档和在linux环境的应用分析等.14. 模糊PID在电阻炉温度控制系统中的应用。提出了FUZZY-PID控制器.15. 在网站上找到的一个比较不错的字符叠加程序.16. 包的运用.17. 嵌入式高速数据采集器的研制.18. 嵌入式C_C++语言精华文章集锦.19. Visual C++网络通信协议分析与应用实现代码.20. 嵌入式C编程语言入门与深入.21. 周立功的PCI51XX CAN卡在VC6.0下的开发示例.22. 飞思卡尔S12系Serial_Peripheral_Interphase_(SPI)应用范例.23. 飞思卡尔S12系列Inter-IC_Bus__(IIC)应用范例.24. 开机时.25. 简单的程序.26. U2270B组成的读卡头原理图!典型应用电路.27. lpc214x的开发平台下载软件 使用lpc214x的开发.28. ZIGBEE1015无线传感器统会自动删除debug和release目录.29. Introduction: 1. Macro1: AddFailureModeCol is used to the test report generated from GNPO Rpt Tools.30. 适合用于嵌入式的zc301摄像头驱动。解压缩之后放在/driver/media/video/zc0301目录下.31. 开源嵌入式图形软件FLTK使用 视频教程.32. jz4740 nand boot source code. jz4740 nand 引导代码.33. 用C++写的一个模拟ATM自动取款机的程序.我这个程序不同于网上现有的那个不能记录用户填写信息的..34. 该电子日历可显示年、月、日、星期、时、分的时间信息。 整个系统采用AT89C52作为中央处理芯片.35. 让你了解AODV在OPNET下怎么运用.36. 基于GPS定位的嵌入式汽车监控器设计.37. 使用手册.38. Zigbee培训资料.39. EASYARM2210的原理图 设计ARM硬件的重要参考.40. 嵌入式平台的开发全过程 非常易懂 嵌?胧狡教ǖ目⑷?非常易懂.
标签： 夜视
上传时间： 2013-05-25
上传用户：eeworm
