曰本美女∴一区二区特级A级黄色大片, 国产亚洲精品美女久久久久久2025, 页岩实心砖-高密市宏伟建材有限公司, 午夜小视频在线观看欧美日韩手机在线,国产人妻奶水一区二区,国产玉足,妺妺窝人体色WWW网站孕妇,色综合天天综合网中文伊,成人在线麻豆网观看

電子發(fā)燒友App

硬聲App

0
  • 聊天消息
  • 系統(tǒng)消息
  • 評(píng)論與回復(fù)
登錄后你可以
  • 下載海量資料
  • 學(xué)習(xí)在線課程
  • 觀看技術(shù)視頻
  • 寫文章/發(fā)帖/加入社區(qū)
會(huì)員中心
創(chuàng)作中心

完善資料讓更多小伙伴認(rèn)識(shí)你,還能領(lǐng)取20積分哦,立即完善>

3天內(nèi)不再提示
創(chuàng)作
電子發(fā)燒友網(wǎng)>電子資料下載>類型>參考設(shè)計(jì)>AD7887-微控制器無(wú)操作系統(tǒng)驅(qū)動(dòng)程序

AD7887-微控制器無(wú)操作系統(tǒng)驅(qū)動(dòng)程序

2021-04-22 | pdf | 770.35KB | 次下載 | 免費(fèi)

資料介紹

This version (10 Feb 2021 14:15) was approved by Robin Getz.The Previously approved version (25 Jan 2021 05:24) is available.Diff

AD7887 - Microcontroller No-OS Driver

Supported Devices

Reference Circuits

Overview

The AD7887 is a high speed, low power, 12-bit analog-to-digital converter (ADC) that operates from a single 2.7 V to 5.25 V power supply. The AD7887 is capable of 125 kSPS throughput rate. The input track-and-hold acquires a signal in 500 ns and features a single-ended sampling scheme. The output coding for the AD7887 is straight binary, and the part is capable of converting full power signals of up to 2.5 MHz.

The AD7887 can be configured for either dual- or single-channel operation via the on-chip control register. There is a default single-channel mode that allows the AD7887 to be operated as a read-only ADC. In single-channel operation, there is one analog input (AIN0) and the AIN1/VREF pin assumes its VREF function. This VREF pin allows the user access to the part’s internal 2.5 V reference, or the VREF pin can be overdriven by an external reference to provide the reference voltage for the part. This external reference voltage has a range of 2.5 V to VDD. The analog input range on AIN0 is 0 to VREF.

Applications
  • Battery-powered systems (personal digital assistants, medical instruments, mobile communications)
  • Instrumentation and control systems
  • High speed modems

The goal of this project (Microcontroller No-OS) is to be able to provide reference projects for lower end processors, which can't run Linux, or aren't running a specific operating system, to help those customers using microcontrollers with ADI parts. Here you can find a generic driver which can be used as a base for any microcontroller platform and also specific drivers for Renesas platforms.

HW Platform(s):

Driver Description

The driver contains two parts:

  • The driver for the AD7887 part, which may be used, without modifications, with any microcontroller.
  • The Communication Driver, where the specific communication functions for the desired type of processor and communication protocol have to be implemented. This driver implements the communication with the device and hides the actual details of the communication protocol to the ADI driver.

The Communication Driver has a standard interface, so the AD7887 driver can be used exactly as it is provided.

There are three functions which are called by the AD7887 driver:

  • SPI_Init() – initializes the communication peripheral.
  • SPI_Write() – writes data to the device.
  • SPI_Read() – reads data from the device.

SPI driver architecture

The following functions are implemented in this version of AD7887 driver:

Function Description
unsigned char AD7887_Init(void) Initializes the AD7887 device.
unsigned short AD7887_Read(unsigned char config) Perform a read operation from the AD7887.

Downloads

Renesas RX63N Quick Start Guide

This section contains a description of the steps required to run the AD7887 demonstration project on a Renesas RX63N platform.

Required Hardware

Required Software

Hardware Setup

An EVAL-CN0150A-SDPZ has to be interfaced with the Renesas Demonstration Kit (RDK) for RX63N:

  EVAL-CN0150A-SDPZ testpoint TP13 (CS)      → YRDKRX63N J15 connector Pin 1
  EVAL-CN0150A-SDPZ testpoint TP12 (MOSI)    → YRDKRX63N J15 connector Pin 2
  EVAL-CN0150A-SDPZ testpoint TP11 (MISO)    → YRDKRX63N J15 connector Pin 3
  EVAL-CN0150A-SDPZ testpoint TP10 (SCLK)    → YRDKRX63N J15 connector Pin 4
  EVAL-CN0150A-SDPZ testpoint TP7  (GND)     → YRDKRX63N J15 connector Pin 5

Reference Project Overview

The reference project initializes the device, reads the ADC conversion result and displays it on the LCD.

Software Project Setup

This section presents the steps for developing a software application that will run on the Renesas Demo Kit for RX63N for controlling and monitoring the operation of the ADI part.

  • Run the High-performance Embedded Workshop integrated development environment.
  • A window will appear asking to create or open project workspace. Choose “Create a new project workspace” option and press OK.
  • From “Project Types” option select “Application”, name the Workspace and the Project “ADIEvalBoard”, select the “RXCPU family and “Renesas RX Standard” tool chain. Press OK.

  • A few windows will appear asking to configure the project:
    • In the “Select Target CPU” window, select “RX600” CPU series, “RX63N” CPU Type and press Next.
    • In the first “Option Setting” window change only the Precision of double from single to “Double precision” and press Next.
    • In the second “Option Setting” window keep default settings and press Next.
    • In the “Setting the Content of Files to be generated” window select ”None” for the ”Generate main() Function” option and press Next.
    • In the “Setting the Standard Library” window press “Enable all” and then Next.
    • In the “Setting the Stack Area” window check the “Use User Stack” option and press Next.
    • In the “Setting the Vector” window keep default settings and press Next.
    • In the “Setting the Target System for Debugging” window choose “RX600 Segger J-Link” target and press Next.
    • In the “Setting the Debugger Options” and “Changing the Files Name to be created” windows keep default settings, press Next and Finish.
  • The workspace is created.

  • The RPDL (Renesas Peripheral Driver Library) has to integrated in the project. Unzip the RPDL files (double-click on the file “RPDL_RX63N.exe”). Navigate to where the RPDL files were unpacked and double-click on the “Copy_RPDL_RX63N.bat” to start the copy process. Choose the 100 pins package and little endian option, type the full path where the project was created and after the files were copied, press any key to close the window.
  • The new source files have to be included in the project. Use the key sequence Alt, P, A to open the “Add files to project ‘ADIEvalBoard’” window. Double click on the RPDL folder. From the “Files of type” drop-down list, select “C source file (*.C)”. Select all of the files and press Add.

  • To avoid conflicts with standard project files remove the files “intprg.c” and “vecttbl.c” which are included in the project. Use the key sequence Alt, P, R to open the “Remove Project Files” window. Select the files, click on Remove and press OK.

  • Next the new directory has to be included in the project. Use the key sequence Alt, B, R to open the “RX Standard Toolchain” window. Select the C/C++ tab, select “Show entries for: Include file directories” and press Add. Select “Relative to: Project directory”, type “RPDL” as sub-directory and press OK.

  • The library file path has to be added in the project. Select the Link/Library tab, select “Show entries for: Library files” and press Add. Select “Relative to: Project directory”, type “RPDL/RX63N_library” as file path and press OK.

  • Because the “intprg.c” file was removed the “PIntPrg” specified in option “start” has to be removed. Change “Category” to “Section”. Press “Edit”, select “PIntPRG” and press “Remove”. From this window the address of each section can be also modified. Set the second address to 0xFFF00000 and the third one to 0xFFF00100. After all the changes are made press OK two times.

  • At this point the files extracted from the zip file located in the “Software Tools” section have to be added into the project. Copy all the files from the archive into the project folder.

  • Now, the files have to be included in the project. Use the key sequence Alt, P, A to open the “Add files to project ‘ADIEvalBoard’” window. Navigate into ADI folder. From the “Files of type” drop-down list, select “Project Files”. Select all the copied files and press Add.

  • Now, the project is ready to be built. Press F7. The message after the Build Process is finished has to be “0 Errors, 0 Warnings”. To run the program on the board, you have to download the firmware into the microprocessor’s memory.
17 Sep 2012 18:24 · Dragos Bogdan

More information

01 Jun 2012 12:17
下載該資料的人也在下載 下載該資料的人還在閱讀
更多 >

評(píng)論

查看更多

下載排行

本周

  1. 1AN-1267: 使用ADSP-CM408F ADC控制器的電機(jī)控制反饋采樣時(shí)序
  2. 1.41MB   |  3次下載  |  免費(fèi)
  3. 2AN158 GD32VW553 Wi-Fi開發(fā)指南
  4. 1.51MB   |  2次下載  |  免費(fèi)
  5. 3AN148 GD32VW553射頻硬件開發(fā)指南
  6. 2.07MB   |  1次下載  |  免費(fèi)
  7. 4AN-1154: 采用恒定負(fù)滲漏電流優(yōu)化ADF4157和ADF4158 PLL的相位噪聲和雜散性能
  8. 199.28KB   |  次下載  |  免費(fèi)
  9. 5AN-960: RS-485/RS-422電路實(shí)施指南
  10. 380.8KB   |  次下載  |  免費(fèi)
  11. 6EE-249:使用VisualDSP在ADSP-218x DSP上實(shí)現(xiàn)軟件疊加
  12. 60.02KB   |  次下載  |  免費(fèi)
  13. 7AN-1111: 使用ADuCM360/ADuCM361時(shí)的降低功耗選項(xiàng)
  14. 306.09KB   |  次下載  |  免費(fèi)
  15. 8AN-904: ADuC7028評(píng)估板參考指南
  16. 815.82KB   |  次下載  |  免費(fèi)

本月

  1. 1ADI高性能電源管理解決方案
  2. 2.43 MB   |  450次下載  |  免費(fèi)
  3. 2免費(fèi)開源CC3D飛控資料(電路圖&PCB源文件、BOM、
  4. 5.67 MB   |  138次下載  |  1 積分
  5. 3基于STM32單片機(jī)智能手環(huán)心率計(jì)步器體溫顯示設(shè)計(jì)
  6. 0.10 MB   |  130次下載  |  免費(fèi)
  7. 4使用單片機(jī)實(shí)現(xiàn)七人表決器的程序和仿真資料免費(fèi)下載
  8. 2.96 MB   |  44次下載  |  免費(fèi)
  9. 5美的電磁爐維修手冊(cè)大全
  10. 1.56 MB   |  24次下載  |  5 積分
  11. 6如何正確測(cè)試電源的紋波
  12. 0.36 MB   |  18次下載  |  免費(fèi)
  13. 7感應(yīng)筆電路圖
  14. 0.06 MB   |  10次下載  |  免費(fèi)
  15. 8萬(wàn)用表UT58A原理圖
  16. 0.09 MB   |  9次下載  |  5 積分

總榜

  1. 1matlab軟件下載入口
  2. 未知  |  935121次下載  |  10 積分
  3. 2開源硬件-PMP21529.1-4 開關(guān)降壓/升壓雙向直流/直流轉(zhuǎn)換器 PCB layout 設(shè)計(jì)
  4. 1.48MB  |  420062次下載  |  10 積分
  5. 3Altium DXP2002下載入口
  6. 未知  |  233088次下載  |  10 積分
  7. 4電路仿真軟件multisim 10.0免費(fèi)下載
  8. 340992  |  191367次下載  |  10 積分
  9. 5十天學(xué)會(huì)AVR單片機(jī)與C語(yǔ)言視頻教程 下載
  10. 158M  |  183335次下載  |  10 積分
  11. 6labview8.5下載
  12. 未知  |  81581次下載  |  10 積分
  13. 7Keil工具M(jìn)DK-Arm免費(fèi)下載
  14. 0.02 MB  |  73810次下載  |  10 積分
  15. 8LabVIEW 8.6下載
  16. 未知  |  65988次下載  |  10 積分