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
隨著科技發展及工業4.0 進程推進,機械臂應用范圍越來越廣,并演化出各種各樣的機械臂,如碼垛機械臂、焊接機械臂、裝配機械臂以及手術機械臂等。現利用solidworks 進行三維建模,設計制作一款基于stm32f103c8t6 單片機的主從式桌面級機械臂,該機械臂包括一個主動機械臂和一個從動機械臂,采用藍牙傳輸信號方式進行同步運動,并且詳細介紹了該機械臂材料選擇、結構設計、工作原理、組成部分和設計特點。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.
標簽： stm32f103c8t6 單片機
上傳時間： 2022-03-27
上傳用戶：
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
上傳時間： 2022-04-05
上傳用戶：kingwide
文章針對800×600象素的 TFT LCD，介紹了LCD顯示原理、TFT元件特性、TFT-LCD的結構及驅動原理，重點進行了 TFT-LCD周邊驅動電路設計，包括柵（行）驅動電路和源〔列）驅動電路。柵驅動芯片，內部主要包括邏輯控制電路、雙向移位寄存器、電平位移電路和4-Level輸出電路。本文設計了一種多模式工作的柵驅動電路，其中控制電路包含左右移位控制、輸入輸出控制、分段清零、工作模式選擇，且相互之間必須進行互相配合。可根據應用場合的不同，而選擇不同的工作模式。列驅動芯片，首先分析其工作原理，并對內部兩個關鍵電路進行設計：并行輸入串行輸出電路和用于實現λ校正的DA變換電路。并采用兩種方式實現了DA轉換，一種是利用高低電壓組合；另一種是采用高低位譯碼電路來實現。在此基礎上，為了能夠降低列驅動芯片的功耗，對列驅動芯片的結構進行了改進，并對改進后的緩沖電路進行了設計，采用 Hspice對芯片內部的模塊電路進行仿真，仿真結果表明，所設計的驅動芯片基本能夠滿足所需的要求，并對柵驅動電路進行版圖設計關鍵詞：TFT LCD電平位移柵驅動列驅動科學技術的發展日新月異，顯示技術也在發生一場革命，隨著顯示技術的突破及市場需求的急劇增長，使得以液晶顯示（LCD）為代表的平板顯示（FPD）技術迅速崛起。目前競爭最激烈的平板顯示器有四個品種：場致發射平板顯示器（FED）、等離子體平板顯示器（PDP）、薄膜晶體管液晶平板顯示器（TFT-ICD）和有機電致發光顯示器（OLED）。而由于 TFT-LCD在亮度、對比度、功耗、壽命、體積和重量等方面的優勢，從而得到廣泛的關注和應用
上傳時間： 2022-04-22
上傳用戶：
基于TMS320F28035芯片為控制核心的空間矢量異步電機變頻器 我們設計的異步電機變頻調速器以TMS320F28035芯片為控制核心，通過輸出三相PWM波控制智能功率模塊IPM驅動三相異步電機。我們使用空間矢量SVPWM算法，并對其進行了優化。采用檢測反電勢的方法省去了昂貴的光電編碼器，大大節省了成本。同時開創性的研發了自動根據運行環境調節的自適應變頻算法，使我們的變頻調速器可以在電網條件惡劣的鄉村山區工作，由此該變頻器已被一家民用水泵生產企業預訂。關鍵字 變頻器 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.
標簽： tms320f28035 芯片
上傳時間： 2022-05-08
上傳用戶：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)
標簽： igbt
上傳時間： 2022-06-20
上傳用戶：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
標簽： gd32f103
上傳時間： 2022-07-23
上傳用戶：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
標簽： mt7628
上傳時間： 2022-07-25
上傳用戶：
eeworm.com VIP專區 單片機源碼系列 67資源包含以下內容：1. P89LPC912單片機數據手冊.pdf2. P89LPC932 Flash單片機使用指南.pdf3. PC MCU串行通信的應用設計方法.pdf4. RSA加解密系統及其單芯片實現.pdf5. PCF8563實時時鐘高精度調整方法.pdf6. PAM2862 1A LED Driver with Int.pdf7. AN070219 PCF8563中斷輸出功能.pdf8. SJA1000 Stand-alone CAN contro.pdf9. PCA82C250 PCA82C251 CAN Transc.pdf10. SJA1000獨立的CAN控制器應用指南.pdf11. PCA82C250 CAN收發器應用指南.pdf12. SCN2681 SCN68681和SCC2691數據通信.pdf13. Philips單片機P89V51RD2簡介.pdf14. 飛利浦SC16C器件和飛利浦低功耗SC16CxxxB器件之間.pdf15. P89V51RD2單片機看門狗的使用方法.pdf16. SC16C554 SC16C654 SC16C554B SC.pdf17. P89V51RD2的加密操作.pdf18. SC16C550應用實例.pdf19. 如何在C語言中調用P89V51RD2的IAP功能.pdf20. P89LPC901實現ADC DAC及UART通信.pdf21. P89LPC900在高精度模數轉換場合的應用.pdf22. P89C51Rx2xx硬件進入ISP的方法.pdf23. Study-3 51單片機開發板原理圖.pdf24. 基于P87LPC760的DALI從機.pdf25. PCA9515D PCA9515DP I2C中繼器.pdf26. PCA9534 8bit I2C bus and SMBus low power IO port with interru.pdf27. LPC900 Flash單片機鍵盤中斷.pdf28. PCA9516 5channel I2C hub.pdf29. PCA9535 PCA9535C 16bit I2C bus.pdf30. LPC700系列單片機看門狗復位應注意的問題.pdf31. PCA9516 I2C中繼器.pdf32. PCA9536 4bit I2C bus and SMBus.pdf33. 內置Reset WDT電路的串行E2PROM原理及應用設計.pdf34. PCA9517 Level translating I2C-.pdf35. PCA9537 4bit I2C bus and SMBus.pdf36. X-tal oscillators on 8-bit mic.pdf37. PCA9517低電壓I2C總線中繼器.pdf38. PCA9538 8bit I2C bus and SMBus.pdf39. 8051系列單片機應用系統的PROTEUS仿真設計.doc40. PCA9518 Expandable 5channel I2.pdf41. PCA9539 PCA9539R 16-bit I2C-bu.pdf42. 基于單總線技術蓄電池監控系統設計.pdf43. PCA9518A I2C 中繼器集線器與擴展器.pdf44. PCA9540B 2channel I2C bus mult.pdf45. 基于AT89C51應用系統的串行通信設計.pdf46. PCA9519 4channel level transla.pdf47. PCA9541 2 to 1 I2C-bus master.pdf48. PCA9519 4通道I2C-bus SMBus 中繼器.pdf49. PCA9544A 4channel I2C multiple.pdf50. PCA9542A 2channel I2C bus mult.pdf51. PCA9544A I2C多路復用器.pdf52. PCA9544中文資料.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多路復用器和開關.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多路復用器和開關.pdf63. PCA9672 Remote 8-bit IO expand.pdf64. PCA9548中文資料.pdf65. PCA9673 Remote 16-bit IO expan.pdf66. PCA9548A 8 channel I2C bus swi.pdf67. PCA9674 PCA9674A Remote 8-bit.pdf68. PCA9548AB I2C多路復用器和開關.pdf69. 8-bit I2C-bus and SMBus IO port with reset.pdf70. PCA9698芯片的應用.pdf71. PCA9698 I2C擴展芯片.pdf72. PCF2123的中斷輸出功能.pdf73. TI新推29款Cortex-M3內核Stelleris AR.pdf74. 端口RS-232工業PC104多串口卡.pdf75. TIPC1000帶視頻輸入接口的嵌入式觸摸平板電腦.pdf76. 串口調試助手用戶手冊.pdf77. PCM8416AS自動校準功能智能型PC104高分辨率多功能.pdf78. TJA1042高速CAN 收發器.pdf79. COS-II調試插件.pdf80. PROFIBUS技術和應用.pdf81. TJA1042 High-speed CAN transce.pdf82. TKStudio IDE集成開發環境升級記錄.pdf83. Replacement of NXP PCA9518 wit.pdf84. TJA1051高速CAN 收發器.pdf85. 1A SIMPLE STEP-DOWN SWITCHING.pdf86. RSM232隔離RS-232收發器.pdf87. TJA1051 High-speed CAN transce.pdf88. DUAL RS-232 DRIVER RECEIVER WI.pdf89. RSM-4055 8通道隔離數字量輸入輸出模塊.pdf90. 外部工具用戶手冊.pdf91. XGate COP10 CANopen 嵌入式通信模塊.pdf92. RSM-6505 5通道熱電偶測量模塊.pdf93. 十六進制編輯器.pdf94. ZigBee模塊ZICM2410應用開發指南.pdf95. RSM-65055通道熱電偶測溫模塊.pdf96. 圖片字模助手.pdf97. ZY00xxGD-10W交直流兩用全電壓輸入AC-DC電源模.pdf98. TKStudio下SDCC_8051用戶使用手冊.pdf99. 定壓輸出隔離穩壓單輸出系列.pdf100. ZY00xxGD-15W交直流兩用全電壓輸入AC-DC電源模.pdf
上傳時間： 2013-04-15
上傳用戶：eeworm
VIP專區-嵌入式/單片機編程源碼精選合集系列（134）資源包含以下內容：1. 講述了如何用C語言編寫八位嵌入式MCU程序,內容涉及數據類型和變量,函數庫,優化和測試嵌入式C語言程序等,書中穿插有樣例工程..2. 一款液晶RT240128GB的以8080方式控制的底層驅動源代碼程序,非常難得,放血奉獻!.3. 嵌入式開發的書籍.4. ARM應用程序開發.5. 基于DD的數字移相正弦信號發生器設計 EDA技術在全國大學生設計競賽中的應用.6. 44B0中,bootloader初始化用到的函數庫.7. plc s7-200 modbus 例程.8. NXP ARM7串口通訊程序.9. 生態系統仿真實驗.10. 這是基于UCOS-II嵌入式實時操作系統開發的腦中報警程序代碼.11. 基于ARM的LED顯示程序.12. ARM芯片LPC2131的一個小程序.13. ARM芯片LPC2131的一個中斷時鐘小程序.14. ARM芯片LPC2131的一個完整的中斷時鐘程序.15. 三星s3c2460開發板完整原理圖 SMDK2460A_416_CPUbd_Schematic SMDK2460A_496_Schematic.16. 未寫入字模程序和字符顯示程序段.17. Intel StrataFlash® Embedded Memory(P30).18. atmel-at89c52中文資料,atmel應用者的資料。Yy.19. 這個Demo程序是應用在FreeRTOS上的PIC24應用Demo.20. PLC、DCS、FCS三大控制系統的特點和差異.21. 德國倍福電氣有限公司(TwinCAT)PLC編程手冊.22. 基于80C51單片機源碼公開的Small RTOS v1.20.3-,C-C++,單片機開發/SCM 內含單片機源碼rtos隨想曲,Small RTOS 下dp-51例子 最新版.23. 使用Embeded Visual C++開發通訊終端及應用實例代碼分析(Level 200).24. 嵌入式系統體系結構 編程與設計 分十二章節 介紹軟件和硬件設計及集成方法.25. 之前在 embedded linux 上寫 keypad driver 參考的源代碼,有寫 keypad driver 需要的朋友可以參考.26. 他人的PCI設計經驗.27. TI的DM355原理圖.28. ZLG DP-668 開發板原理圖 對應我上傳的程序.29. usb轉換成串口的最新電路圖共大家設計參考.30. 用M16驅動步進電機 ,實現三種驅動方式: 單四拍驅動、雙四拍驅動、單雙八拍驅動.31. MC系列單片機浮點運算子程序.32. 合眾達 TI 5502 開發板 原理圖.33. MSP430F133控制 TH7122發射的C程序原代碼,IAR C.34. MSP430F133 控制TH7122的原理圖和印制板圖.35. TH7122 的MSP430F133接收程序,10.7MHz中頻,IAR C.36. steve maguire 編著的。并不時向大多數書一樣從最基本的c語法講起。而是從自己多年的編程經驗總結.37. 這是一部關于如何用C++開發嵌入式系統的書。書中給出了一些開發例程。.38. Bpline曲線生成.39. vod 項目軟件源代碼.40. 嵌入式開發中主機與開發之間通信的tftp軟件.
上傳時間： 2013-07-28
上傳用戶：eeworm
