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：
摘要：本文在分析1GBT的動態開關特性和過流狀態下的電氣特性的基礎上，通過對常規的IGBT推挽驅動電路進行改進，得到了具有良好過流保護特性的IGBT驅動電路。該電路簡單，可靠，易用，配合DSP等控制芯片能達到很好的驅動效果Abstract：Based on the studies on the dynamic switching and over-current characteristics of IGBT，this paper makes some improvments to the original push-pull driving circuit，obtains a new IGBT driving circuit which has a good over-current protection function.The circuit is simple，reliable and easy to use.Combined with controlling chips such as DSP it will do a great job in driving applications.關鍵詞：IBGT：開關特性；驅動；過流保護；Key Words:IGBT；switching characteristics；driving:over-current protection
上傳時間： 2022-06-21
上傳用戶：
AR0231AT7C00XUEA0-DRBR（RGB濾光）安森美半導體推出采用突破性減少LED閃爍 (LFM)技術的新的230萬像素CMOS圖像傳感器樣品AR0231AT，為汽車先進駕駛輔助系統(ADAS)應用確立了一個新基準。新器件能捕獲1080p高動態范圍(HDR)視頻，還具備支持汽車安全完整性等級B(ASIL B)的特性。LFM技術(專利申請中)消除交通信號燈和汽車LED照明的高頻LED閃爍，令交通信號閱讀算法能于所有光照條件下工作。AR0231AT具有1/2.7英寸(6.82 mm)光學格式和1928(水平) x 1208(垂直)有源像素陣列。它采用最新的3.0微米背照式(BSI)像素及安森美半導體的DR-Pix?技術，提供雙轉換增益以在所有光照條件下提升性能。它以線性、HDR或LFM模式捕獲圖像，并提供模式間的幀到幀情境切換。 AR0231AT提供達4重曝光的HDR，以出色的噪聲性能捕獲超過120dB的動態范圍。AR0231AT能同步支持多個攝相機，以易于在汽車應用中實現多個傳感器節點，和通過一個簡單的雙線串行接口實現用戶可編程性。它還有多個數據接口，包括MIPI(移動產業處理器接口)、并行和HiSPi(高速串行像素接口)。其它關鍵特性還包括可選自動化或用戶控制的黑電平控制，支持擴頻時鐘輸入和提供多色濾波陣列選擇。封裝和現狀：AR0231AT采用11 mm x 10 mm iBGA-121封裝，現提供工程樣品。工作溫度范圍為-40℃至105℃(環境溫度)，將完全通過AEC-Q100認證。
標簽： 圖像傳感器
上傳時間： 2022-06-27
上傳用戶：XuVshu
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：
ILI9881D Data Sheet for all customerAmorphous TFT LCD Single-Chip Driver 800(RGB)X1280 Resoltion,16.7M-Color Without internal Gramtwo data lanes supports up to 850Mbps on the mipi DSI link
上傳時間： 2022-07-19
上傳用戶：bluedrops
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
VITA 46 Highlights Retain standard 6U and 3U form-factors Height, depth, pitch, front panel arrangements, conduction-cooled interfaces, etc.Support standard-length PMC and XMC modules· Support high-speed serial fabric on the backplane Tyco MultiGig RT2,7-row connector· Support VME and PCI interfaces for legacy compatibility· Provision for optical connectors as option· Support improved logistics Provide support for Line Replaceable Module(LRM) applications with ESD-protected connector Alignment and keying blocks
標簽： vita46
上傳時間： 2022-07-25
上傳用戶：
特性? CPU：– 全靜態8位1T 8051內核CMOS微控制器.– 指令集全兼容MCS-51.– 4級優先級中斷配置.– 雙數據指針(DPTRs)? 工作條件：– 寬電壓工作范圍2.4V至5.5V.– 寬工作頻率最高至16MHz.– 工業級工作溫度 -40℃ 至 +105℃.? 存儲器：– 最高至18K字節APROM用戶程序代碼區.– 可配置4K/3K/2K/1K/0K字節LDROM引導代碼區，用戶可靈活配置用途.– 所有FLASH區域分隔為128字節一頁.– 內建IAP編程功能.– 代碼加密功能.– 256字節片內直接存取RAM.– 額外768字節片內間接存取RAM(XRAM)通過MOVX指令讀寫.? 時鐘源：– 16 MHz高速內部振蕩器，電源5.0V條件下±1%精度等級。全工作條件范圍±2%精度等級.– 10 kHz低速內部振蕩器.– 支持外部時鐘輸入.– 支持系統時鐘即時軟件切換(On-the-fly)功能.– 支持軟件配置時鐘除頻最高至1/512.? 功能：– 多達17個標準通用管腳，另外還有1個只能做輸入的管腳。 所有輸出管腳可通過軟件配置兩種輸出斜率(slew rate)N76E003 初版規格書2016年11月7日 第 8 頁 總258頁 版本. V0.04– 標準外部中斷腳 ???????及???????– 兩組16位定時器/計數器0和1，與標準8051兼容– 一組16位定時器2帶有3路輸入捕獲功能， 9個輸入管腳可供選擇– 一組16位自動重裝載功能定時器3，可用于配置串行口UART的波特率– 一組16位PWM計數中斷– 一組看門狗(WDT)，由內部10kHz獨立時鐘作為時鐘源– 一組自喚醒功能定時器(WKT)，用于低功耗模式下自主喚醒– 兩組全雙工串口，帶有幀錯誤檢測及自動地址辨識功能。 UART0的TXD及RXD腳可通過軟件更換管腳位置– 一組SPI總線， 當系統時鐘是16MHz時， 主機模式及從機模式最高傳輸速率皆可達到8Mbps– 一組I2C總線，主機模式及從機模式最高傳輸速率皆可達到400kbps– 三對， 6通道脈寬調制器(PWM)， 10個輸出管腳可以選擇， 16位分辨率，帶有不同的工作模式和故障剎車(Fault Brake)功能– 最多可配置8通道管腳中斷功能， 所有的I/O端口都支持此功能， 可通過軟件配置邊沿或電平觸發
上傳時間： 2022-08-09
上傳用戶：bluedrops
VIP專區-嵌入式/單片機編程源碼精選合集系列（38）資源包含以下內容：1. 看看名字就應該知道是干什么用的了吧！ 這可是個好東東！我搜索了很久才找到的！ 獨樂樂.2. 51單片機c語言中斷的實現 還有很多例子可以參考。包括常用的中斷模塊 c語言單片機開發很有用.3. 這是利用C51語言編寫的讀寫AT24C512的程序.4. 這是利用CYPRESS CY7C63723匯編語言編寫的讀寫AT24C512的程序.5. 這個是我參考過的多級菜單.6. 可以用H.264編碼解碼器源碼(c語言).7. Application of Bootstrap Loader in MSP430 With Flash Hardware and Software Proposal.8. Features of the MSP430 Bootstrap Loader.9. Implementing a Real-Time Clock on the MSP430.10. Experiments for the MSP430 Starter Kit.11. Solid State Voice Recorder Using Flash MSP430.12. Application of Bootstrap Loader in MSP430 With Flash Hardware and Software Proposal.13. Interfacing the DAC8574 to the MSP430F449.14. Interfacing the MSP430 and TMP100 Temperature Sensor.15. Ultrasonic Distance Measurement With the MSP430.16. Implementing a Direct Thermocouple Interface With the MSP430x4xx and ADS1240.17. 24點漢字的C++實現代碼.18. TC與BC++用戶界面程序設計 《Turbo CBorland C++用戶界面程序設計》（西安交通大學出版社 周升鋒 李立新 等著）的隨書軟盤.19. 用VB通過并口控制I2C總線.20. pcb封裝詳解.21. uClinux 下MicroWindows開發的電機控制平臺軟件和模擬示波器的雙路數據采集系統源碼.22. 51單片機PID計算程序.23. 詳細的介紹,以及其中庫函數的描述說明,用法等.24. 日本人設計的電子熱水瓶的全部嵌入式源碼,很好的實例.25. 一個極好的192*64LCD的C源代碼！.26. 51單片機.27. 自啟動vxworks---一個自啟動vx程序的開發文檔 vx編程指南----vx的一些基本編程介紹和操作手冊 tornado ---- tornado使用手冊 linux內核分析 ----- l.28. EasyARM 程序 RTC_TEST.29. EasyARM 程序 uart_TEST.30. EasyARM 程序 SPI_TEST.31. EasyARM 程序 I2C_TEST.32. 一個resist的程序.33. 在nios環境下的LCD的包括測試.34. nios 環境下的軟件編程.35. nios 的開發程序.36. 單片機與pc機.37. uIP0.9版本.38. lwip1.0.0協議棧tcpip.39. lwip在ucos上的移植.40. 網友張巍提供的tcpip協議棧,是一個成功穩定的以太網接口上的TCP/IP協議程序。里面包括有說明.
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（123）資源包含以下內容：1. 研華數據采集卡c++ console程序多通道采集數據的例子.2. 基于AT89C51的電子秤方案,原理圖,程序.3. FAT32 study report,it s discrips the FAT332 stard , FAT32 學習筆記.4. 基于arm的嵌入式書籍.5. 三菱FX系列PLC密碼解密軟件.不需注冊..6. This guide reviews the rules and syntax of the principle commands that comprise C and its object-ori.7. 紅外遙控大全.8. ADI公司DDS芯片AD9830應用資料.9. ADI公司DDS芯片AD9832應用資料.10. ADI公司DDS芯片AD9833應用資料.11. ADI公司DDS芯片AD9834應用資料.12. PXA27x Processor Family Optimization Guide.13. ti的c2000的spi。有用的著的時候。可以在程序中測試spi口.14. *名稱：LCD12864顯示程序 功能：顯示英文.15. 89c51與ds1302代碼顯示時間的源程序.16. 51實驗板的原理圖！可以作為簡單的起步參考.17. 由于找不到安裝 紅旗需要的文件.18. W3100是WIZnet公司專門為以太網互聯和嵌入式設備推出的硬件TCP／IP協議棧芯片.19. 基于狀態轉換法設計的電機正反轉、調速PLC源程序.20. s3c4510b的源代碼以及并口JTAG下載調試程序.21. 介紹了實時嵌入式系統的相關內容,對于研究嵌入式很用用..22. 射頻讀寫模塊是采用最新Mifare技術的微型嵌入式非接觸式IC卡讀寫模塊。內嵌ISO14443 Type A協議解釋器,并具有射頻驅動及接收功能,可以簡單實現對MifareOne等卡片的讀寫操作,讀寫.23. AT91SAM7S64開發板的ADS范例for ATMEL S64-EKAT91SAM7S64-BasicMouseUSB.24. ds18b20的一個完整程序.25. 我的一個交通燈的課程設計.26. mcuzone的AT91RM9200EK底板原理圖Rev2.0.27. 有關I2C設計的資料. 有關I2C設計的資料..28. cmos的教程.29. This designs demonstrates how to use the Ethernet port using a Nios II system on the DE2 board. It s.30. 低頻數字式相位測量儀.31. 使用C C++ 開發嵌入系統 詳細實例 很實用.32. 270開發板串口擴展測試程序,arm9 工控板測試.33. 利用PCB上的走線實現高頻低通濾波器的設計.34. LPC２１３１ 對大家和有幫助的.35. 這是一個AVR單片機的紅外遙控程序.36. 嵌入式實時操作系統psos的系統調用手冊.37. 題目1：DSB調制與解調電路的MATLAB實現及調制性能分析 題目2：SSB調制與解調電路的MATLAB實現及調制性能分析 題目3：AM調制與解調電路的MATLAB實現及調 題目5：PM調制與解.38. 該PDF文檔是CPLD/FPGA的入門教程。里面敘述了PLD的基本結構.39. 51單片機+max7219驅動實例 8位LED同時循環顯示1-9.40. 嵌入式系統中U-Boot基本特點及其移植方法.
上傳時間： 2013-07-21
上傳用戶：eeworm
