数字频率计是电工电子中常用的测量仪器,数字频率计通过用输入待测信号对一特定长度的信号进行计数,从而得出频率并通过数码管直观的显示出来。本文提出了一种与输入同步的数字频率计的设计,提高了频率计的精度,设计采用Multisim软件进行设计和仿真的过程,介绍了其工作原理,硬件电路设计和仿真的过程。设计采用了Multisim软件进行设计和仿真,设计结果得到的验证。Digital frequency counter is used to measure the frequency of a signal.It is common to use a multivibrator to generate a standard 1 second time base signal and count input signal gated by this signal.However,the asynchronous of this time base signal with input signal will bring errors.In this paper,a high precision frequency counter which use synchronized time base signal generator is proposed.This frequency counter is designed and simulated by Multisim tools and result is verified.
标签： multisim
上传时间： 2022-05-08
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CH7525 is a low-cost, low-power semiconductor device that translates the DisplayPort signal to HDMI/DVI. This innovative DisplayPort receiver with an integrated HDMI Transmitter is specially designed to target the notebook/ultrabook, tablet device and PC market segments. Through the CH7525’s advanced decoding / encoding algorithm, the input DisplayPort high-speed serialized multimedia data can be seamlessly converted to HDMI/DVI output.
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canopen 402协议，运动控制资料，“The CANopen device profile for drives and motion controllers defines the interface to frequency inverters, servo controllers as well as stepper motors.”
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上传时间： 2022-06-18
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Legal Disclaimer Lenze Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lenze Semiconductor disclaims any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product.Lenze Semiconductor does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the rights of others The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling Lenze Semiconductor products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Lenze Semiconductor for any damages arising or resulting from such use or sale.
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1. General Description BL-M3362NS1 product is designed base on Broadcom BCM43362 chipset. It operates at 2.4GHz band and supports IEEE802.11b/g/n 1T1Rwith wireless data rate up to 72.2Mbps. It supports IEEE802.11isafety protocol, along with IEEE802.11e standard service quality. It supports standard interfaces SDIOV2.0(50 MHz,4-bit and1-bit) and generic SPI(up to 50 MHz), Integrated ARM Cortex?-M3 CPUwith on-chip memory enables running IEEE802.11 firmware that can be field-upgraded with future features.2. The range of applying Imaging platforms(printers, digital still cameras, digital picture frames)Consumer electronic devices(DTV, DVDplayers, Blu-ray players. etc.)Gaming platforms Carinformation MiFi/Mobile Routes Smart PAD Set-TopBoxes
标签： wifi
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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
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RK3328手册RK3328 is a high-performance Quad-core application processor designed for Smart STB(Set Top Box) including OTT/IPTV/DVB. It is a high-integration and cost efficient SOC for 4KHDR STB.Quad-core Cortex-A53 is integrated with separate Neon and FPU coprocessor, also withshared L2 Cache. The Quad-core GPU supports high-resolution display and game.Lots of high-performance interface to get very flexible solution, such as multi-channeldisplay including HDMI2.0a and TV Encoder (CVBS). TrustZone and crypto hardware areintegrated for security. 32bits DDR3/DDR3L/DDR4/LPDDR3 provides high memorybandwidth.
上传时间： 2022-08-10
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eeworm.com VIP专区 单片机源码系列 14资源包含以下内容：1. CodeWarrior基础入门.pdf2. 51单片机可编程定时器初值的设置研究.pdf3. 基于CPLD的三相多波形函数发生器资料.doc4. MG82FG216中文数据手册.pdf5. 基于51单片机的数字频率计资料.doc6. 51单片机系统A_D_D_A转换电路的设计.pdf7. SPI总线在51单片机系统中的实现.pdf8. 篮球比赛24秒计时器设计.docx9. 基于STC89C51单片机的数字电压表设计_胡卓敏.pdf10. 单片机控制PWM的直流电机调速系统的设计.doc11. 基于AT89S52芯片的简易智能小车的设计与实现.pdf12. 基于PIC单片机的WIFI控制系统.doc13. 基于STC89C52单片机的智能循迹小车设计_朱涛.pdf14. 矩阵按键控制数码管和LED显示.doc15. 基于STC89C52单片机智能小车设计_陈飞鹏.pdf16. (1小时学会C语言51单片机)C语言入门教程.doc17. 基于单片机STC89C52智能小车设计_颜增显.pdf18. 汇编语言和C语言两种语言流水灯.doc19. 字库CPU解锁方法大集合.doc20. 电子协会51开发板硬件技术文档.doc21. 基于单片机的比例遥控系统.doc22. 将报警和无线控制集合起来的程序.docx23. 按键识别与数码管动态显示.ppt24. 控灯dht11温湿度检测程序.docx25. keil软件编译常见错误解释总结和中文翻译.pdf26. 8051单片机汇编指令工具包.rar27. 用51单片机及霍尔传感器制作的测速器电路图.wps28. DIY音乐频谱显示.pdf29. 基于51单片机的智能大棚管理系统.doc30. 学做智能车_挑战飞思卡尔之8系统调试.rar31. DS1302时钟+DS18B20+无线遥控应用程序.rar32. 学做智能车_挑战飞思卡尔之7摄像头型设计.rar33. TLC2543电路图和程序.pdf34. 基于AT89C51的红外遥控电子密码锁的设计.pdf35. 学做智能车_挑战飞思卡尔之6_光电管型设计.rar36. AD芯片TLC2543与51系列单片机的接口设计.pdf37. 声、光、触摸三控延时电路—电子毕业设计.docx38. 学做智能车_挑战飞思卡尔之5微控制器.rar39. 基于单片机的柴油机冷却水温度控制系统设计.pdf40. 基于Mini51板的数字示波器设计.rar41. mps430单片机开发环境IAR_Embedded_Workbench使用教程.pdf42. 时钟芯片介绍.pdf43. USB转串口芯片CH340T驱动程序win7.rar44. 51单片机实用汇编子程序库(中文资料).pdf45. [拉普兰德]TSL1401线性CCD模块资料包.rar46. 315M无线遥控C51解码程序.doc47. MSP430g2553学习课件.ppt48. Atmel AT89C系列单片机电路板设计指南.pdf49. 基于单片机的乒乓球发球机设计.pdf50. MSP430学习笔记--程序模块化设计.doc51. 基于MSP430农作物生长监控系统的研究.pdf52. MSP430程序库（三）12864液晶程序库.pdf53. ILI9325AN_V0_27资料.pdf54. 通过proteus仿真的TLC2543三路转换电路图和51C程序.doc55. Vc++_实现GPS全球定位系统定位信息的提取.pdf56. DHT11电阻式数字温湿度传感器51单片机应用例程.rar57. 基于AT89S52的无转速传感器的直流调速系统的设计.pdf58. ST7920proteus仿真12864.rar59. 你必须知道的495个C语言问题学习笔记.pdf60. Proteus和Keil软件在单片机项目式教学中的应用.zip61. MSP430F5438-Exp数据资料.pdf62. [手把手教你学单片机C语言单片机开发教程].24C02B.pdf63. 单片机软件设计中的几种基本编程技术.pdf64. c语言延时程序的计算方法.doc65. 单片机语音报警系统的研究.pdf66. 32位基于ARM微控制器STM32F101xx与STM32F103xx固件函数库.pdf67. 基于msp430和1286的红外控制的万年历.zip68. 神舟IV号原理图STM32107_ARMJISHU.pdf69. 基于单片机的作息时间控制钟系统资料.doc70. 基于51单片机的USB接口应用设计.pdf71. 脉搏监测系统设计资料.doc72. 单片机控制的数字FM收音机设计.doc73. 基于FPGA多通道采样系统设计资料.doc74. MCS-51单片机大容量数据存储器扩展板设计.pdf75. 基于Proteus的可燃气体报警器设计.pdf76. 基于STC89C52RC单片机的温度报警系统的设计与实现.pdf77. 基于STC89C52RC的数显温度计设计.pdf78. 基于stc89c52的交通灯设计.docx79. 基于STC89C52RC汉字多方式显示屏的制作.pdf80. MSP430单片机C语言编程中的退出睡眠问题.pdf81. uCOS－II+（一个简单的嵌入式操作系统，源码和书）.rar82. 基于STC89C52RC的超声波测距系统设计.pdf83. 51单片机2.8寸26万像素LED显示.rar84. 波形发生器 proteus+c程序.zip85. 一种简单方法实现基于STC89C52RC单片机的频率计.pdf86. LPC23XX原理图和PCB所有接口全有.rar87. 基于AT89S52的便携式智能室内环保监控仪.pdf88. 8051单片机工作原理_--_单片机入门经典教程.doc89. mma7660数据资料.pdf90. NXP LPCXpresso_Getting_Started_Guide.pdf91. STC单片机电子时钟12864和32x16点阵.docx92. 单片机编程实例大全WELL.doc93. 一种具有娱乐和安防功能的智能机器人设计.rar94. 51(STC89C52RC)单片机C语言全新教程.pdf95. 可设置温度上下限的温控.zip96. BDM解锁MC9S12XS128步骤.pdf97. 基于52单片机的28BYJ48步进电机运用.doc98. ds1302 18B20万年历显示温度星期（完全通过）.zip99. FB2530EB Sheet 02--Connector.pdf100. 学习单片机开发板学习课件.ppt
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VIP专区-嵌入式/单片机编程源码精选合集系列（97）资源包含以下内容：1. 介绍了Imu器件的模型参数及实验验证研究.2. 介绍IMU器件的试验测试和参数分析.3. DM9000的中文参考资料.4. 一个在通用i2c程序基础上加入自己的修改.5. 本程序是模拟的大习幕点阵的三种刷新效果。程序简单.6. sim卡 读卡教程 SIM 读卡 详细教程.7. T6963c(240*128)液晶驱动（AVR Mega128) C语言.8. *** *** *** *** *** *** *** *** * USB測試程式說明 By hugang, hgx2000@mail.china.com ****************.9. 通过调用DLL文件进行仪器数据采集并进行解析..10. ES6028 Vibratto DVD Processor Data Sheet 很详细的IC各部件的功能详细介绍.11. DS18B20温度传感器应用解析.12. LPC 2300 串口开发；LPC2300是NXP 公司推出的最新的嵌入式芯片；异步串口通讯功能很强；本人写了个测试案例；供大家参考；.13. Back in 2002, the 6502 disappeared out of all catalogues. Wanted to know, if it s possible to buil.14. EEPROM acces under ADS.15. A digital fi‘equeney meter designed with FPGA development software Q-~us 11 is introduced．The 1 Hz—l.16. S3C2440A datasheet.17. RS编解码程序.18. 专业汽车级嵌入式操作系统OSEK的源代码.19. 基于LPC2000系列的USB主机驱动程序,可在此基础上进行USB主机相关的开发.20. 嵌入式TCP/IP协议栈应用主机端程序（VC6源码） 一个专为嵌入式系统编写的小型TCP/IP协议栈TCP/IPLean.21. fft滤波器.22. fat32文件系统的代码.23. 这个是显示时间用的.24. iic commulacation by labview.25. 上载的程序可以用于PIC单片机,也可以用于430单片机,本人原创,到至今还没有发现哪位网友想出这种办法,希望站长能多加分..26. 一个很好的flash程序烧写工具.27. 本人有关PLC测试源码.28. tvp5150数据手册和TI的C文件,对tvp5150驱动开发有帮助.29. 该软件能很好地实现数控机床上的G00.30. SPI简单的数据传输.用单片595传输数据.简单易懂.31. 达芬奇双核开发板TMS320DM644xled的源代码.32. ARM的bootloader程序.33. for displaying led test program.34. 51上通过测试的程序.35. 天下无双、功能最多的Flash！一个文件.36. 基于东进的D161A语音卡的开发平台.37. i2c-test.38. GPRS上网.39. gui关键的几个类的代码.40. 628512在实际电路中的应用图纸,有实际应用的意义..
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VIP专区-嵌入式/单片机编程源码精选合集系列（156）资源包含以下内容：1. 《嵌入式应用程序开发综合试验9例》含有9个嵌入式应用实践源程序。.2. NiosII NiosII!! SOPC CRC32 SOPC SOPC 自定义外设.3. 一个电话本的程序.4. 嵌入式minigui 中自定义控件的应用实例。不下后悔！.5. minigui 时间控件的使用方法.6. 嵌入式linux 设备驱动程序.7. uart-I2C, working on PIC18F2420.8. 基于mips cpu,在u-boot系统下磁盘驱动程序。.9. 可以应用到IAR EWARM-EV V5.20破解 使用方法： 1：首先用iarid.exe产生ID 2：使用iarkg.exe产生lic文件.10. 嵌入式开发前景和趋势.11. 嵌入式视频有下载器下载方法及一些基本的调试技巧。.12. 同济大学嵌入式学习文档.13. 转载其他网站的资料与大家分享.14. LED点阵显示屏扫描程序.15. altera公司开发销售的DE2开发平台原理图.16. 基于飞斯卡尔MC9S08QG8的基本程序开发代码.17. 本程序中用到DS1302以及液晶等模块.18. 一个垃圾压缩车的PLC程序。采用X端口作为模拟量转换后的数据量输入口。这种方法不需要买模拟量模块.19. 这是一个信号发生器得程序.20. 这个程序可以用作寄存器的使用.21. FAT32文件应用.22. 电源管理代码 基于linux2.6.10！apm方式的电源管理！很好的资料！做arm平台使用.23. I2C zongxian 总线 亲自编译.24. 用Verilog 实现将比特流数据转化为SPI协议数据的适配器.25. 最新F2系列的部分外围模块中文PDF,来自USER GUIDE的翻译.26. 单词计算器,可以统计你输入的单词的字母数有多少个等多个程序.27. FIBER AND wire product designed guider..28. xilin,ise_9.01的使用.29. ISE、Keil_C.30. 一本不错的数字图像处理书（冈萨雷斯中文版）总共有三个压缩文件需要放在一起解压缩.31. miniARM嵌入式web主程序,需要在运行miniarm.32. 单片机操作ocmj12232c-1屏的源代码.33. ISP1582 原理图.34. x-wrt is the GUI config tool for openwrt,which is a open project about wireless Router.35. 首先介绍了合成孔径雷达(SAR)的特点.36. tms320vc5509a usb boot.37. 基于Altera fpga 的软核 nios2的串口调试代码.38. cip51 i2c.39. 此源码为ocm12864系列字符液晶显示模块KEIL uVision3 for ARM.40. 此源码为KEIL uVision3 for ARM 的ocm12864系列字符液晶显示模块。.
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