电子书-RTL Design Style Guide for Verilog HDL540页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.
标签： RTL verilog hdl
上传时间： 2022-03-21
上传用户：canderile
随着科技发展及工业4.0 进程推进,机械臂应用范围越来越广,并演化出各种各样的机械臂,如码垛机械臂、焊接机械臂、装配机械臂以及手术机械臂等。现利用solidworks 进行三维建模,设计制作一款基于stm32f103c8t6 单片机的主从式桌面级机械臂,该机械臂包括一个主动机械臂和一个从动机械臂,采用蓝牙传输信号方式进行同步运动,并且详细介绍了该机械臂材料选择、结构设计、工作原理、组成部分和设计特点。With the development of science and technology and the advancement of Industry 4.0, the application range of the mechanical arm has become wider and wider, and various types of mechanical arms, such as palletizing robot arms, welding robot arms, assembly robot arms, and surgical robot arms, have been developed. Now using solidworks for 3D modeling, design and manufacture a master-slave desktop-level robot arm based on stm32f103c8t6 single-chip microcomputer. The robot arm includes an active robot arm and a slave robot arm, which uses Bluetooth to transmit signals for synchronous motion. The material selection, structural design, working principle, components and design features of the manipulator are introduced.
标签： stm32f103c8t6 单片机
上传时间： 2022-03-27
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1. Preface2. The concept2.2. Prescience 2.3. Reading guide 2.4. Abbreviations 2.5. Version management3. Hardware3.2. ESP32 3.3.2. Hardware schema 3.3.3. DHT22 and level shifter 3.3.4. Geekcreit® ESP32 Development Board4. Software4.2. Installatie van GIT 4.3. Installatation of the ESP32 Core 4.4. Installation of the Xtensa and ESP32 Tools 4.5. Python 4.5.1. Install Python 4.5.2. Installation of pySerial and EspTool 4.6. Test the software installation5. The ESP32 IoT project 5.1.1. WiFi connection 5.1.2. Setup date and time 5.1.3. MQTT connection 5.1.4. Determining temperature and humidity 5.2. IOT_ESP32_Project source6. Test6.2. ESP32, NodeJS, MongoDB en Mosca 6.2.1. Start MongoDB 6.2.2. Start NodeJS Express serve and Mosca broker 6.2.3. Start the ESP32 6.2.4. Start an Chrome browser
上传时间： 2022-04-05
上传用户：kingwide
文章针对800×600象素的 TFT LCD，介绍了LCD显示原理、TFT元件特性、TFT-LCD的结构及驱动原理，重点进行了 TFT-LCD周边驱动电路设计，包括栅（行）驱动电路和源〔列）驱动电路。栅驱动芯片，内部主要包括逻辑控制电路、双向移位寄存器、电平位移电路和4-Level输出电路。本文设计了一种多模式工作的栅驱动电路，其中控制电路包含左右移位控制、输入输出控制、分段清零、工作模式选择，且相互之间必须进行互相配合。可根据应用场合的不同，而选择不同的工作模式。列驱动芯片，首先分析其工作原理，并对内部两个关键电路进行设计：并行输入串行输出电路和用于实现λ校正的DA变换电路。并采用两种方式实现了DA转换，一种是利用高低电压组合；另一种是采用高低位译码电路来实现。在此基础上，为了能够降低列驱动芯片的功耗，对列驱动芯片的结构进行了改进，并对改进后的缓冲电路进行了设计，采用 Hspice对芯片内部的模块电路进行仿真，仿真结果表明，所设计的驱动芯片基本能够满足所需的要求，并对栅驱动电路进行版图设计关键词：TFT LCD电平位移栅驱动列驱动科学技术的发展日新月异，显示技术也在发生一场革命，随着显示技术的突破及市场需求的急剧增长，使得以液晶显示（LCD）为代表的平板显示（FPD）技术迅速崛起。目前竞争最激烈的平板显示器有四个品种：场致发射平板显示器（FED）、等离子体平板显示器（PDP）、薄膜晶体管液晶平板显示器（TFT-ICD）和有机电致发光显示器（OLED）。而由于 TFT-LCD在亮度、对比度、功耗、寿命、体积和重量等方面的优势，从而得到广泛的关注和应用
上传时间： 2022-04-22
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基于TMS320F28035芯片为控制核心的空间矢量异步电机变频器 我们设计的异步电机变频调速器以TMS320F28035芯片为控制核心，通过输出三相PWM波控制智能功率模块IPM驱动三相异步电机。我们使用空间矢量SVPWM算法，并对其进行了优化。采用检测反电势的方法省去了昂贵的光电编码器，大大节省了成本。同时开创性的研发了自动根据运行环境调节的自适应变频算法，使我们的变频调速器可以在电网条件恶劣的乡村山区工作，由此该变频器已被一家民用水泵生产企业预订。关键字 变频器 TMS320f28035 IPM SVPWM In our design, the asynchronous machine inverter based on the chip of TMS320F28035 drives the three-Phase asynchronous machine by sending three-phase PWM waves to the IPM, which is short for the Intelligent-Power-Module. The SVPWM (space vector pulse width modulation) strategy is applied to our control algorithm and we optimize it mainly in two aspects. Firstly the inverter detects the speed by measuring the Back EMF instead of installing an expensive photoelectric encoder for costs reduction.
标签： tms320f28035 芯片
上传时间： 2022-05-08
上传用户：zhanglei193
le flows through MOS channel while Ih flows across PNP transistor Ih= a/(1-a) le, IE-le+lh=1/(1-a)' le Since IGBT has a long base PNP, a is mainly determined by ar si0 2ar= 1/cosh(1/La), La: ambipolar diff length a-0.5 (typical value)p MOSFET channel current (saturation), le=U"Cox"W(2"Lch)"(Vc-Vth)le Thus, saturated collector current Ic, sat=1/(1-a)"le=-1/(1-a)"UCox"W/(2Lch)"(Vo-Vth)2Also, transconductance gm, gm= 1/(1-a)"u' Cox W/Lch*(Vo-Vth)Turn-On1. Inversion layer is formed when Vge>Vth2. Apply positive collector bias, +Vce3. Electrons flow from N+ emitter to N-drift layer providing the base current for the PNP transistor4. Since J1 is forward blased, hole carriers are injected from the collector (acts as an emitter).5. Injected hole carriers exceed the doping level of N-drift region (conductivity modulation). Turn-Off1. Remove gate bias (discharge gate)2. Cut off electron current (base current, le, of pnp transistor)
标签： igbt
上传时间： 2022-06-20
上传用户：wangshoupeng199
The GD32F103xx device is a 32-bit general-purpose microcontroller based on the ARM?Cortex?-M3 RISC core with best ratio in terms of processing power, reduced power consumption and peripheral set. The Cortex?-M3 is a next generation processor core whichis tightly coupled with a Nested Vectored Interrupt Controller (NVIC), SysTick timer and advanced debug support.The GD32F103xx device incorporates the ARM ' Cortex?-M3 32-bit processor core operating at 108 MHz frequency with Flash accesses zero wait states to obtain maximumefficiency. It provides up to 3 MB on-chip Flash memory and up to 96 KB SRAM memory. An extensive range of enhanced I/Os and peripherals connected to two APB buses. The devices offer up to three 12-bit ADCs, up to two 12-bit DACs, up to ten general-purpose
标签： gd32f103
上传时间： 2022-07-23
上传用户：aben
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
标签： mt7628
上传时间： 2022-07-25
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eeworm.com VIP专区 单片机源码系列 67资源包含以下内容：1. P89LPC912单片机数据手册.pdf2. P89LPC932 Flash单片机使用指南.pdf3. PC MCU串行通信的应用设计方法.pdf4. RSA加解密系统及其单芯片实现.pdf5. PCF8563实时时钟高精度调整方法.pdf6. PAM2862 1A LED Driver with Int.pdf7. AN070219 PCF8563中断输出功能.pdf8. SJA1000 Stand-alone CAN contro.pdf9. PCA82C250 PCA82C251 CAN Transc.pdf10. SJA1000独立的CAN控制器应用指南.pdf11. PCA82C250 CAN收发器应用指南.pdf12. SCN2681 SCN68681和SCC2691数据通信.pdf13. Philips单片机P89V51RD2简介.pdf14. 飞利浦SC16C器件和飞利浦低功耗SC16CxxxB器件之间.pdf15. P89V51RD2单片机看门狗的使用方法.pdf16. SC16C554 SC16C654 SC16C554B SC.pdf17. P89V51RD2的加密操作.pdf18. SC16C550应用实例.pdf19. 如何在C语言中调用P89V51RD2的IAP功能.pdf20. P89LPC901实现ADC DAC及UART通信.pdf21. P89LPC900在高精度模数转换场合的应用.pdf22. P89C51Rx2xx硬件进入ISP的方法.pdf23. Study-3 51单片机开发板原理图.pdf24. 基于P87LPC760的DALI从机.pdf25. PCA9515D PCA9515DP I2C中继器.pdf26. PCA9534 8bit I2C bus and SMBus low power IO port with interru.pdf27. LPC900 Flash单片机键盘中断.pdf28. PCA9516 5channel I2C hub.pdf29. PCA9535 PCA9535C 16bit I2C bus.pdf30. LPC700系列单片机看门狗复位应注意的问题.pdf31. PCA9516 I2C中继器.pdf32. PCA9536 4bit I2C bus and SMBus.pdf33. 内置Reset WDT电路的串行E2PROM原理及应用设计.pdf34. PCA9517 Level translating I2C-.pdf35. PCA9537 4bit I2C bus and SMBus.pdf36. X-tal oscillators on 8-bit mic.pdf37. PCA9517低电压I2C总线中继器.pdf38. PCA9538 8bit I2C bus and SMBus.pdf39. 8051系列单片机应用系统的PROTEUS仿真设计.doc40. PCA9518 Expandable 5channel I2.pdf41. PCA9539 PCA9539R 16-bit I2C-bu.pdf42. 基于单总线技术蓄电池监控系统设计.pdf43. PCA9518A I2C 中继器集线器与扩展器.pdf44. PCA9540B 2channel I2C bus mult.pdf45. 基于AT89C51应用系统的串行通信设计.pdf46. PCA9519 4channel level transla.pdf47. PCA9541 2 to 1 I2C-bus master.pdf48. PCA9519 4通道I2C-bus SMBus 中继器.pdf49. PCA9544A 4channel I2C multiple.pdf50. PCA9542A 2channel I2C bus mult.pdf51. PCA9544A I2C多路复用器.pdf52. PCA9544中文资料.pdf53. PCA9549 Octal bus switch with.pdf54. PCA9545A/PCA9545B/PCA9545C I2C.pdf55. PCA9549D/PCA9549PW/PCA9549B I2.pdf56. PCA9546A 4 channel I2C bus swi.pdf57. PCA9555 16bit I2C-bus and SMBu.pdf58. PCA9546A I2C多路复用器和开关.pdf59. PCA9670 Remote 8-bit IO expand.pdf60. PCA9547 8 channel I2C bus mult.pdf61. PCA9671 Remote 16-bit IO expan.pdf62. PCA9547D/PW/BS I2C多路复用器和开关.pdf63. PCA9672 Remote 8-bit IO expand.pdf64. PCA9548中文资料.pdf65. PCA9673 Remote 16-bit IO expan.pdf66. PCA9548A 8 channel I2C bus swi.pdf67. PCA9674 PCA9674A Remote 8-bit.pdf68. PCA9548AB I2C多路复用器和开关.pdf69. 8-bit I2C-bus and SMBus IO port with reset.pdf70. PCA9698芯片的应用.pdf71. PCA9698 I2C扩展芯片.pdf72. PCF2123的中断输出功能.pdf73. TI新推29款Cortex-M3内核Stelleris AR.pdf74. 端口RS-232工业PC104多串口卡.pdf75. TIPC1000带视频输入接口的嵌入式触摸平板电脑.pdf76. 串口调试助手用户手册.pdf77. PCM8416AS自动校准功能智能型PC104高分辨率多功能.pdf78. TJA1042高速CAN 收发器.pdf79. COS-II调试插件.pdf80. PROFIBUS技术和应用.pdf81. TJA1042 High-speed CAN transce.pdf82. TKStudio IDE集成开发环境升级记录.pdf83. Replacement of NXP PCA9518 wit.pdf84. TJA1051高速CAN 收发器.pdf85. 1A SIMPLE STEP-DOWN SWITCHING.pdf86. RSM232隔离RS-232收发器.pdf87. TJA1051 High-speed CAN transce.pdf88. DUAL RS-232 DRIVER RECEIVER WI.pdf89. RSM-4055 8通道隔离数字量输入输出模块.pdf90. 外部工具用户手册.pdf91. XGate COP10 CANopen 嵌入式通信模块.pdf92. RSM-6505 5通道热电偶测量模块.pdf93. 十六进制编辑器.pdf94. ZigBee模块ZICM2410应用开发指南.pdf95. RSM-65055通道热电偶测温模块.pdf96. 图片字模助手.pdf97. ZY00xxGD-10W交直流两用全电压输入AC-DC电源模.pdf98. TKStudio下SDCC_8051用户使用手册.pdf99. 定压输出隔离稳压单输出系列.pdf100. ZY00xxGD-15W交直流两用全电压输入AC-DC电源模.pdf
上传时间： 2013-04-15
上传用户：eeworm
VIP专区-嵌入式/单片机编程源码精选合集系列（134）资源包含以下内容：1. 讲述了如何用C语言编写八位嵌入式MCU程序,内容涉及数据类型和变量,函数库,优化和测试嵌入式C语言程序等,书中穿插有样例工程..2. 一款液晶RT240128GB的以8080方式控制的底层驱动源代码程序,非常难得,放血奉献!.3. 嵌入式开发的书籍.4. ARM应用程序开发.5. 基于DD的数字移相正弦信号发生器设计 EDA技术在全国大学生设计竞赛中的应用.6. 44B0中,bootloader初始化用到的函数库.7. plc s7-200 modbus 例程.8. NXP ARM7串口通讯程序.9. 生态系统仿真实验.10. 这是基于UCOS-II嵌入式实时操作系统开发的脑中报警程序代码.11. 基于ARM的LED显示程序.12. ARM芯片LPC2131的一个小程序.13. ARM芯片LPC2131的一个中断时钟小程序.14. ARM芯片LPC2131的一个完整的中断时钟程序.15. 三星s3c2460开发板完整原理图 SMDK2460A_416_CPUbd_Schematic SMDK2460A_496_Schematic.16. 未写入字模程序和字符显示程序段.17. Intel StrataFlash® Embedded Memory(P30).18. atmel-at89c52中文资料,atmel应用者的资料。Yy.19. 这个Demo程序是应用在FreeRTOS上的PIC24应用Demo.20. PLC、DCS、FCS三大控制系统的特点和差异.21. 德国倍福电气有限公司(TwinCAT)PLC编程手册.22. 基于80C51单片机源码公开的Small RTOS v1.20.3-,C-C++,单片机开发/SCM 内含单片机源码rtos随想曲,Small RTOS 下dp-51例子 最新版.23. 使用Embeded Visual C++开发通讯终端及应用实例代码分析(Level 200).24. 嵌入式系统体系结构 编程与设计 分十二章节 介绍软件和硬件设计及集成方法.25. 之前在 embedded linux 上写 keypad driver 参考的源代码,有写 keypad driver 需要的朋友可以参考.26. 他人的PCI设计经验.27. TI的DM355原理图.28. ZLG DP-668 开发板原理图 对应我上传的程序.29. usb转换成串口的最新电路图共大家设计参考.30. 用M16驱动步进电机 ,实现三种驱动方式: 单四拍驱动、双四拍驱动、单双八拍驱动.31. MC系列单片机浮点运算子程序.32. 合众达 TI 5502 开发板 原理图.33. MSP430F133控制 TH7122发射的C程序原代码,IAR C.34. MSP430F133 控制TH7122的原理图和印制板图.35. TH7122 的MSP430F133接收程序,10.7MHz中频,IAR C.36. steve maguire 编著的。并不时向大多数书一样从最基本的c语法讲起。而是从自己多年的编程经验总结.37. 这是一部关于如何用C++开发嵌入式系统的书。书中给出了一些开发例程。.38. Bpline曲线生成.39. vod 项目软件源代码.40. 嵌入式开发中主机与开发之间通信的tftp软件.
上传时间： 2013-07-28
上传用户：eeworm
