Android+howto
RK312X_ANDROID4.4.4-SDK_V1.0_20140922发布说明
密级状态：绝密()秘密()内部()公开(√)RK312X_ANDROID4.4.4-SDK_V1.0_20140922发布说明（技术部，MID组）文件状态：[]正在修改[√]正式发布当前版本：V1.0作者：何云完成日期：2014-09-22审核：张帅、张小珠完成日期：福州瑞芯微电子有限公司Fuzhou Rockchips Semiconductor Co.,Ltd(版本所有,翻版必究)版本历史版本号作者修改日期修改说明备注V1.0何云2014.09.22初始发布目录1概述 (2)2主要支持功能 (2)2.1功能项说明与配置 (2)2.1.1工具说明 (2)2.1.2内核板极配置 (3)2.1.3Camera配置说明 (3)2.1.4PMIC使用说明 (3)3SSH公钥操作说明 (3)3.1SSH公钥生成 (3)3.2使用KEY-CHAIN管理密钥 (4)3.3多台机器使用相同SSH公钥 (5)3.4一台机器切换不同SSH公钥 (6)3.5密钥权限管理 (7)4REPO同步说明 (7)4.1G IT权限申请说明 (7)4.2源码获取说明 (7)5编译说明 (8)5.1编译环境搭建 (8)5.2编译步骤 (12)5.2.1kernel编译步骤 (12)5.2.2uboot编译步骤 (12)5.2.3Android编译步骤 (12)5.3烧写说明 (12)1概述本版本是配合RK312X平台发布的Android4.4.4的SDK代码。
适用于RK312X开发板以及基于其上所有开发产品。
环境编译事宜请参见第5章节编译说明。
下载代码请参考第4章节repo同步操作。
本文档提及的文档和工具，工具位于工程根目录/RKTools文件夹下，文档位于工程根目录/RKDocs文件夹下。
工具的使用说明都在工具相应目录里。
2主要支持功能参数模块名数据通信Wi-Fi、USB以太网卡、3G Dongle、USB、SDCARD应用程序图库、APK安装、谷歌市场、浏览器、计算器、日历、摄像、闹钟、下载、电子邮件、资源管理器、Gmail、谷歌地图、音乐、录音、设置、视频播放器、GTalk、、CTS2.1功能项说明与配置2.1.1工具说明与SDK同步发布的产测工具包括：烧写工具、量产工具、固件工厂工具、PCBA测试工具，整机测试APK等。
Unit3 Grammar and Usage-Integrated skills 同步作业
Unit3 Grammar and Usage-Integrated skills 同步作业Ⅰ. 根据提示写出正确的单词1. When lion cubs(幼崽) are young, the mother stays with them while the father ____________ (搜寻)for food.2. Many online shops will give customers a great discount(折扣) to ____________(促销)their goods.3. The rent of my ____________(公寓套房) is very high, for it is convenient for the shopping center and the railway station.4. Most of his ____________ (收入)is spent on his house every month.5. People should ____________(遵守) the traffic rules when they travel to a new place.6. Everyone has to show their ____________(身份) cards when they buy a train ticket in China.7. Our department usually begins a new week after reviewing the ____________(先前的) week’s work.8. The teacher decided to give the task to the student who had a strong sense of ____________(责任).9. According to the law of the country, players should be allowed to ____________ (赚取) money from advertising.10. For many people, belongings are the most essential ____________(来源) of meaning.Ⅰ. 单句语法填空1. He said he ____________ (come) to see me the next day.2. He left his office because he ____________ (visit) me later that afternoon.3. Every time they met, they ____________ (talk) about former classmates they remembered.4. They had to be patient because it ____________(take)some time before they got the full result.5. I ____________ (close) the kitchen door when a little mouse popped its head out.6. Nobody knew what ____________ (happen) to the Earth in a century’s time.7. Dr. Smith said he ____________ (give) a speech on how to reduce stress the next week.8. Did you predict that so many students ____________(volunteer) for the Clean Your Plate campaign?9. I didn’t know when she would come, but when she came I ____________(let) you know.10. Last Sunday we ____________ (visit) the Great Wall, but it rained.III. 阅读理解April showers bring May flowers, as the saying goes. And with those flowers comes May Day,a holiday that most people have heard of but have no idea what it’s for.May Day, celebrated on May 1 every year, has its roots in ancient festivals marking the beginning of summer. Ancient Celts called it Beltane, which is still celebrated today. Over the centuries, it gradually developed in Europe, with maypole dances now connected with the holiday.But May Day isn’t all about skipping around with ribbons in the sunshine. It has also been on the same day as International Workers’ Day since the 1880s. In fact, May Day is equal to America’s Labor Day for certain countries.On May 1, 1886, hundreds of thousands of U. S. industrial workers took part in a nationwide strike to demand an 8-hour workday. (At the time, it was common to work 10 to 16 hours a day, according to Industrial Workers of the World. ) The activities in Chicago lasted for several days, and on May 3, a strike at McCormick Reaper Works ended in a brawl with police officers. Several strikers were wounded or killed.The next night, the violence became even worse. When police came to break up a crowd of people gathered in Haymarket Square, a bomb went off in the policemen. The bomb killed seven of them and wounded 60 more. Police then opened fire on the crowd, killing several men and wounding more than 200. In honor of these events, now known as the Haymarket Affair, the International Socialist Conference declared May 1 as an international holiday for labor. That’s why the world sees not only celebrations of warmer weather on the first day of May, but often marches for labor unions as well.1. According to the text, May Day_______.A. is celebrated as an international holiday only in EuropeB. is a holiday that many people don’t know why it is celebratedC. was developed from celebrations of the beginning of springD. was known as Beltane in history but is not celebrated nowadays2. The underlined word “brawl” in Paragraph 4 is closest in meaning to_______.A. accidentB. partyC. meetingD. fight3. What is the main idea of the text?A. The birth of May Day.B. The importance of May Day.C. The meetings of May Day.D. The celebrations of May Day.IV. 完形填空Technology is always developing, and at a very fast pace too. It can be hard to keep up with the 1technology, especially when you’re 2. A group of eighth graders who are Girls Scout Troop 60013 in Arlington, Virginia 3that problem and decided to do something about it.The girls set up their first walk-in clinic for elderly people who have 4understanding how to unlock the secrets of their modern 5. Each teen spent at least an hour of one-on-one time with their “ students”. Based on their technological experience, each Girl Scout 6how to use Android and Apple phones. Some of the oldsters7wanted to join the e-commerce revolution, and needed help setting up Apple Pay8others simply had problems learning how to send 9 to their family members.“I was teaching this old woman how to text people, and the first thing that she did was text her daughter, ” one of the Scouts said, “And I thought that was really10. ”11offering group lessons to all of the old people to learn together at the end of the clinic, the youngsters even printed out brochures and guides for the elderly to take home12some had trouble with their smartphones in the future.“Those girls were13, ” said Nancy Taylor, a great-grandmother of four who visited the clinic. “14was set up and ready for us and they all kindly answered our questions. ”The eighth graders are likely to get the Girl Scout Silver Award, the highest honor a Girl Scout can receive, for being15.1. A. newest B. outdatedC. latestD. intelligent2. A. young B. oldC. enthusiasticD. patient3. A. recognized B. solvedC. missedD. approached4. A. friends B. interest C. time D. trouble5. A. cars B. smartphonesC. doorsD. houses6. A. learned B. taughtC. connectedD. mixed7. A. actually B. fortunatelyC. anxiouslyD. unwillingly8. A. if B. while C. since D. when9. A. presents B. loveC. lettersD. messages10. A. crazy B. awfulC. addictiveD. sweet11. A. Before B. By C. Besides D. Except12. A. in case B. so thatC. as ifD. now that13. A. wonderful B. attractiveC. courageousD. respectable14. A. Nothing B. ItC. NoneD. Everything15. A. serious B. lovelyC. warm-heartedD. hard-workingV. 语法填空阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。
ELSA Speak 注册指南说明书
How to create an ELSA Speak account1.Visit CH Play / Google Play or App Store→ search for ELSA Speak, then downloadand install it on your device (Android / iOS phone / tablet).2.Open the ELSA Speak app→ Tap "Next"→ Select the native language→ Select thepronunciation level → tap "Next" → select your preferred time for ELSA to send you a push notification as a reminder to practice your English → Tap "Start" → Tap “Allow”the notification.3.Select "Register by Email" → Fill in your email and set a password for your ELSA Speakaccount → Tap "Sign up" (ELSA encourages users to register with an email account for better account management)4.https:///watch?v=oo_RC0_hOu0&feature=youtu.beCheck our YouTube video:Complete guide – How to use ELSA Speakhttps://youtu.be/azdanABeJ_cHow to activate membership/voucher codePlease make sure that you have registered for an ELSA account before heading to this section. Otherwise, please refer to the “Sign up for an account” section above to create an account.For Android phone/ tablet devices1.Open the ELSA Speak app and log in to your ELSA account by Email / Facebook.2.In the lower right corner of the screen please click "Profile" →"Get ELSA Pro" →"Have a promo code" (in the lower left corner of the screen)3.Enter the activation code with ALL CAPITAL LETTERS and press "Redeem" → Thecode has been activated successfully4.Return to the "Profile" tab to log out of your account and sign in again for the system forthe account to update.5.Watch: https:///watch?v=BXlVwYhdrdE&feature=youtu.beFor iOS devices: iPhone, iPad1.Go to /redeem2.Log in to your ELSA account via email / Facebook (If you are not registered, you cancreate an account directly on this website by clicking on the "Register" button)3.Enter the activation code with ALL CAPITAL LETTERS and press "Redeem"4.Open the ELSA Speak app, log out and sign in with the ELSA account to update youraccount.5.Watch: https:///watch?v=WeOVgKqB1bo&feature=youtu.beNotes:If see the message 'The code is invalid or the code has been activated' when redeem the voucher code, please follow the instructions below:1. Enter the app2. Go to Profile > Click on the Settings icon and see the info under your name.3. If you see info ‘x’ days remaining, it means that the code was redeemed successfully.Otherwise please contact ******************************。
android中的Signal
Android中的Signal信号ContentsSignal 信号 (1)[1] signal中文描述列表 (2)[2] Android信号处理 (5)[3] What is si_codes (8)Example: SEGV_ACCERR (12)Example: BUS_ADRALN (12)Example: SIGPIPE (14)[4] signal and Traces/tombstone (14)[5] Example: Add some logs to debug signal: (16)1 Who kill system_server (16)2 see kernel why unkown reason exit (16)[6] Reference (16)What is signalHow many kind signal,General signalHow to send signalHow to handle signalHow to generally use signalSignal and system callsignal handle Reentrant Functionssignal setsignal queuesigprocmask FunctionSignals are a limited form of inter-process communication used in Unix, Unix-like, and other POSIX-compliant operating systems. A signal is an asynchronous notification sent to a process or to a specific thread within the same process in order to notify it of an event that occurred. Signals originated in 1970s Bell Labs Unix and have been more recently specified in the POSIX standard.When a signal is sent, the operating system interrupts the target process' normal flow of execution to deliver the signal. Execution can be interrupted during any non-atomic instruction. If the process has previously registered a signal handler, that routine is executed. Otherwise, the default signal handler is executed.Embedded programs may find signals useful for interprocess communications, as the computational and memory footprint for signals is small.[1] signal中文描述列表Signal DescriptionSIGABRT 由调用abort函数产生，进程非正常退出SIGALRM 用alarm函数设置的timer超时或setitimer函数设置的interval timer超时SIGBUS 某种特定的硬件异常，通常由内存访问引起SIGCANCEL 由Solaris Thread Library内部使用，通常不会使用SIGCHLD 进程Terminate或Stop的时候，SIGCHLD会发送给它的父进程。
基于Android的外卖点餐类的app的设计与开发-毕业论文
---文档均为word文档，下载后可直接编辑使用亦可打印---摘要：在这千变万化的岁月中，手机已不是稀奇之物。
规矩的传统订餐已经不能在我们生活中得到满足，用户们需要一个可以在家查看餐厅以及点餐的服务。
由此，外卖订餐体系就呈现了，本体系操纵Android体系，来实现订餐。
本系统操作十分简单，给用户一个全新的体验，也有助于商家往更好的方向发展，促进经济的发展。
关键词：android；数据库；客户端；服务端Development and design of app for takeout ordering based on AndroidMou HongluDirector:Jiang WeiweiCollege Of Medical Technology, Zhejiang Chinese Medical University, Hangzhou,China, 310053Abstract：In the era of rapid development of the Internet, mobile phones are developing rapidly. Traditional ordered meals can no longer be satisfied in our lives. Users need a service to view restaurants and ordering meals at home.As a result, takeaway ordering system appeared, the system uses Android system to achieve ordering. This paper analyzes the design from the perspective of system, describes the whole process of ordering food to eat and how to achieve it.To achieve the user's landing, ordering, viewing orders, businesses look at orders, shelves, dishes and other modules. The operation of the system is very simple, giving users a completely new experience, and also helps businesses to develop in a better direction and promote economic development.Key Words：Android;tabase；client；server引言在传统的饭店点餐我们有时候要等待许久时间才能吃到饭，当我们有了这个系统之后，我们就可以在自己的家里或者寝室里也能吃到饭店里的饭菜，给我们的生活提供了便利。
英文介绍app的作文
英文介绍app的作文英文：I would like to introduce an app that I have been using recently called "Duolingo". It is a language learning app that offers courses in over 30 different languages. The app is completely free to use and is available on both iOS and Android devices.One of the things I love about Duolingo is how easy it is to use. The app is very user-friendly and the lessons are designed in a way that is both fun and engaging. The lessons are broken down into bite-sized chunks, which makes it easy to fit language learning into your daily routine. I have been using the app for a few weeks now and I have already noticed a significant improvement in my language skills.Another great feature of Duolingo is the ability to track your progress. The app keeps track of how manylessons you have completed and how many points you have earned. This is a great way to stay motivated and see howfar you have come.Overall, I highly recommend Duolingo to anyone who is interested in learning a new language. It is a great appthat is both fun and effective.中文：我想介绍一个我最近在使用的应用程序叫做“Duolingo”。
Silicon Labs CP210X虚拟COM端口驱动器与Android平台集成指南说明书
AN809: Integrating the CP210X Virtual COM Port Driver into the Android Platform This document describes how to build an Android kernel and the steps needed to inte-grate the CP210x virtual COM port (VCP) driver in to the build.Android is based off of the Linux kernel, so there is already support for the CP210x de-vice built in to the kernel. However, CP210x support is not included in a default kernel build configuration for most Android devices.There are many devices that can run the Android operating system (OS), as well as several different versions of an Android operating system. Because Android is open source, it can be changed based on the needs of device manufacturers, wireless carri-ers and other developers. This fact makes it difficult to provide the exact steps for re-building, as each developer may be using different hardware and a different build of Android specific to that hardware.This document was written based on the experience of building an Android Jelly Bean (4.3.1) kernel for a PandaBoard using a TI OMAP4430 processor. The Android port used originates from the 13.10 release from Linaro. Build materials and information on this specific release can be found at /archive/13.10/android/ images/panda-linaro/. If you are using another platform, you should consult the manu-facturer's website to get the Android distribution support for your device. Although the steps below are targeted to Jelly Bean on the PandaBoard, developers can follow simi-lar steps to download and rebuild the kernel for other platforms. For any other needs specific to Android, visit the Android Developer website at.KEY POINTS•Steps for integrating the CP210x VCP driver into an Android kernel.•Testing the CP210x VCP driver in Android.1. MaterialsTo build a custom Android kernel and image, you will need:•CP210x USB to UART Bridge Evaluation Board•Target Android Device (PandaBoard)•SD card to hold OS•Any cables for connectivity (HDMI video cable, network cable, USB power cable, USB to RS232 adapter)•Source Distribution for Target Android Version (Linaro 13.10 - JellyBean 4.3.1 Android Release for PandaBoard)•Toolchain to build the Source Distribution (Android NDK, Revision 9C)•Development System Running Linux (Ubuntu 12.04 LTS)2. OverviewThe basic steps to integrate support for the CP210x driver are:•Create bootable image on an SD Card from the Android source distribution •Download the Android build tools for the target Android source and platform •Download the Android source tree for the target platform•Modify the configuration of the kernel to include the CP210x and other required drivers •Build and install the new image to the target platform mediaCreate Bootable Image on an SD Card 3. Create Bootable Image on an SD CardTo replace the kernel on a device’s media, you will need to create a bootable device. Typically, a source distribution will contain prebuilt binaries that can be loaded directly on to an SD Card. Loading a complete prebuilt image enables you to make sure that the version works on your platform and allows you to replace only the kernel instead of rebuilding the entire Android distribution from scratch. Linaro provides these prebuilt binaries for its supported devices. The following instructions describe how to use your development sys-tem to download the prebuilt images to a PandaBoard device and test that the PandaBoard can boot and run Android without any is-sues.e Android 4.3.1 (Jelly Bean) for the PandaBoard from Linaro’s 13.10 release version. The specific version can be found underthe Linaro Engineering Builds on /archive/13.10/android/images/panda-linaro/. Download the following files to the development system to a known and accessible location, such as your home directory:•boot.tar.bz2•system.tar.bz2•userdata.tar.bz22.Next, on the development system, install and update for the Linaro Image Tools:$ sudo add-apt-repository ppa:linaro-maintainers/tools$ sudo apt-get update$ sudo apt-get install linaro-image-tools3.Disable the automount so you can properly image your SD card:$ dconf write /org/gnome/desktop/media-handling/automount false$ dconf write /org/gnome/desktop/media-handling/automount-open false4.To image your SD card, first find out what the device name is. Start by inserting your SD card and running:$ dmesg5.You should see something similar to the following at the end of your log:sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 >6.Navigate to the directory where the boot/system/userdata.tar.bz2 files were downloaded. Ensure that the device above is indeedassociated with your SD card (otherwise you can erase your hard drive) and create the media using the Linaro imaging tools: $ linaro-android-media-create --mmc /dev/sdc --dev panda --boot boot.tar.bz2–-system system.tar.bz2 --userdata userdata.tar.bz27.Next, install the graphics libraries to the device (do this immediately after creating the media, before removing the SD card):$ wget /~vishalbhoj/install-binaries-4.0.4.sh$ chmod a+x install-binaries-4.0.4.sh$ ./install-binaries-4.0.4.sh8.Finally, restore the automount:$ dconf write /org/gnome/desktop/media-handling/automount true$ dconf write /org/gnome/desktop/media-handling/automount-open true9.The SD card is now ready to boot. Insert it into the SD card slot on the PandaBoard and hook up a monitor to the HDMI output anda keyboard and mouse to the USB ports. Connect the RS232 connection up to your development system. This is the Android de-bug port, and will output logging information from the PandaBoard at a baud rate of 115200, 8N1. This also serves as a root termi-nal in to the device. Once everything is connected, power the board to start the boot sequence. If this works, then you can move on to the next steps of replacing the kernel image on this device.To build the source from an Android distribution, you will need the toolchain that can build the source for your platform. This can be different between devices, so check with the manufacturer to find out what toolchain to use for your device.1.For Android Jelly Bean (4.3.1) on the PandaBoard, use the arm-linux-androideabi 4.6 version from the Android NDK, Revision 9C.This can be downloaded directly from the Android Developer website at: /tools/sdk/ndk/index.html.Here is a link to the specific version:Android NDK, Revision 9C: /android/ndk/android-ndk-r9c-linux-x86_64.tar.bz2After downloading these tools, extract them into a known and accessible location, such as your home directory.2.Next, you will need to set the PATH variable to include the specific path to the correct version of the prebuilt toolchain. In this ex-ample, we have extracted the Android NDK to the home directory and used the following path to target the 4.6 version of the tools (replace <username> with your username):$ export PATH=$PATH:/home/<username>/android-ndk-r9c/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin3.Additionally, a few other tools will need to be installed on your development system. Use the following commands to install them:$ sudo apt-get install git$ sudo apt-get install curl$ sudo apt-get install ncurses-dev$ sudo apt-get install uboot-mkimageNext, you will need to download the Android source. The manufacturer for your device should have its own repository for the download, or should be able to point to a specific revision to download.In this example, you will clone the Linaro PandaBoard source and checkout a version specific to the 13.10 build. This will allow you to rebuild the kernel and replace it on the media that was also created from 13.10.Note: The following steps were taken from Linaro’s build script “linaro_kernel_build_cmds.sh”, and is how to obtain the version to check out and links to rebuild. For reference, this file can be found at /archive/13.10/android/images/panda-linaro/ linaro_kernel_build_cmds.sh.1.Download the source for your development board:$ git clone git:///kernel/panda2.Navigate to the source directory and checkout the source tree for version 13.10:$ cd linaro-kernel$ git checkout ca4b45c8f598951b828ca968f5953b8d5e85e34c6. Modify the Configuration of the KernelOnce the Android kernel source has been downloaded, you will need to create a configuration for the kernel. Linaro already has a de-fault configuration so it is easiest to start with this and add in your CP210x support. The following steps describe how to do this.1.Download the kernel configuration from Linaro to a “.config” file to be used by the build:$ curl -q /android/~linaro-android-member-ti/panda-linaro-13.10-release/3/ kernel_config > .confige the menuconfig to update the configuration for CP210x support:$ make ARCH=arm menuconfigIn the menuconfig UI, navigate to the Device Drivers section:Figure 6.1. menuconfig: Device DriversThen navigate to the USB Support section (this should already be marked with a *).Figure 6.2. menuconfig: USB SupportThen navigate to the USB Serial Converter Support section. Press the space bar until this item shows up as a *, then enter the section to edit the USB converter support:Figure 6.3. menuconfig: USB Serial Converter SupportHighlight USB Generic Serial Driver and press the space bar until this item shows up as a *. Then navigate down to the USB CP210x family of UART Bridge Controllers and press the space bar until this item shows up as a *. Finally, exit it out of each section:Figure 6.4. menuconfig: USB Serial Converter FeaturesOn the final page, select Yes to save the configuration in to the “.config” file:Figure 6.5. menuconfig: Save ConfigurationAt this point everything is setup to build the CP210x in to the kernel.Note: The Android Jelly Bean (4.3.1) OS is based on a 2.6 version of the Linux kernel. Basic support for CP2101/2/3 devices are inclu-ded in the kernel by default, but the driver is not up to date for newer devices such as CP2104/5/8/9. To get support for these, you will need to replace the cp210x.c driver file in the source before you build your kernel image. Perform the following steps to replace the file: 1.Download the Linux 2.6 driver from the Silicon Labs website:/Support%20Documents/Software/Linux_2.6.x_VCP_Driver_Source.zip2.Extract the cp210x.c file in to the kernel source tree. The original cp210x.c file is located in the tree under <base kernel directory>/drivers/usb/serial.3.Rebuild the kernel using the steps below.Build and Install the New Image 7. Build and Install the New ImageOnce you confirm your device works and boots off of the known media, you have downloaded the necessary toolchain and the Android kernel source tree can build your kernel image.1.To build the source run the following command:$ make ARCH=arm CROSS_COMPILE=arm-linux=andorideabi- uImage2.When your build completes successfully, you can find your ‘uImage’ file under <base kernel directory>/arch/arm/boot.3.The final step is to replace the “uImage” file on the boot device with the new one. Reinsert the original SD card that contains theprebuilt bootable image. You should see multiple partitions come up on this device. Navigate to the “boot” partition and delete the “uImage” file on the device, then copy over the new one from your build.4.The SD card is now ready to boot. Insert it into the SD card slot on the PandaBoard, hook up a monitor to the HDMI output and akeyboard and mouse to the USB ports. Connect the RS232 connection up to your development system using minicom or some other terminal program (115200, 8N1).Testing the CP210x Driver in Android 8. Testing the CP210x Driver in AndroidWhen your PandaBoard boots up, you can plug in a CP210x device to the USB host port on the PandaBoard. On the host terminal connected to the Android debug port you should see something similar to the following output:[ 104.627380] usb 1-1.3: new full-speed USB device number 8 using ehci-omap[ 104.764923] usb 1-1.3: New USB device found, idVendor=10c4, idProduct=ea60[ 104.772338] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3[ 104.786437] usb 1-1.3: Product: CP2104 USB to UART Bridge Controller[ 104.803405] usb 1-1.3: Manufacturer: Silicon Labs[ 104.810241] usb 1-1.3: SerialNumber: 0001[ 104.836822] cp210x 1-1.3:1.0: cp210x converter detected[ 104.845794] usb 1-1.3: cp210x converter now attached to ttyUSB0The last line will specify what tty device the CP210x will be accessible through, in this case it is “ttyUSB0”.To do a quick test to see that data is going through the device type the following commands in the Android debug port terminal:$ stty –F /dev/ttyUSB0 115200$ stty –F /dev/ttyUSB0 –aspeed 115200 baud;stty: /dev/ttyUSB0line = 0;intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>;eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;-parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff-iuclc -ixany -imaxbel -iutf8opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprtechoctl echokeThe first command will set the baud rate, then the second command will show the baud rate has been set (underlined and in green above). Hook your CP210x device up to another terminal set to that baud rate, 115200. Then we can see that data goes across by typing the following command in to our Android debug port terminal:$ ls /dev > /dev/ttyUSB0This should display the directory listing for /dev on your Android device in the other terminal and confirm that it is transmitting data across the CP210x as expected.Note: Some CP210x devices flush buffers on close, so the directory listing might not be complete since the open, data transmission, and close happen quicker than data can exit the device. Certain devices can be configured to avoid this behavior by using the steps outlined in application note, “AN721: CP21xx Device Customization Guide.” Under normal operation where an application is developed, the port should be kept open for the duration of the time needed for transmission or configured to not flush buffers on closed if suppor-ted and desired.Conclusion 9. ConclusionThis application note explained how to build the CP210x VCP driver into an Android kernel. Upon completion of these steps, a develop-er can then utilize the CP210x device as a data transmission or data acquisition device for Android. The device can be used in applica-tions developed for the Android platform as services or end user applications developed with the Android SDK.Revision History 10. Revision HistoryRevision 0.2May 2023•Updated Linaro links.•Converted document to new format.Revision 0.1September 2016•Initial versionSilicon Laboratories Inc.400 West Cesar Chavez Austin, TX 78701USA IoT Portfolio /IoT SW/HW /simplicity Quality /quality Support & Community /communityDisclaimerSilicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software imple-menters using or intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and “Typical” parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes without further notice to the product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Without prior notification, Silicon Labs may update product firmware during the manufacturing process for security or reliability reasons. Such changes will not alter the specifications or the performance of the product. Silicon Labs shall have no liability for the consequences of use of the infor -mation supplied in this document. This document does not imply or expressly grant any license to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any FDA Class III devices, applications for which FDA premarket approval is required or Life Support Systems without the specific written consent of Silicon Labs. A “Life Support System” is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Labs products are not designed or authorized for military applications. Silicon Labs products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons. Silicon Labs disclaims all express and implied warranties and shall not be responsible or liable for any injuries or damages related to use of a Silicon Labs product in such unauthorized applications. Note: This content may contain offensive terminology that is now obsolete. Silicon Labs is replacing these terms with inclusive language wherever possible. For more information, visit /about-us/inclusive-lexicon-projectTrademark InformationSilicon Laboratories Inc.®, Silicon Laboratories ®, Silicon Labs ®, SiLabs ® and the Silicon Labs logo ®, Bluegiga ®, Bluegiga Logo ®, EFM ®, EFM32®, EFR, Ember ®, Energy Micro, Energy Micro logo and combinations thereof, “the world’s most energy friendly microcontrollers”, Redpine Signals ®, WiSeConnect , n-Link, ThreadArch ®, EZLink ®, EZRadio ®, EZRadioPRO ®, Gecko ®, Gecko OS, Gecko OS Studio, Precision32®, Simplicity Studio ®, Telegesis, the Telegesis Logo ®, USBXpress ® , Zentri, the Zentri logo and Zentri DMS, Z-Wave ®, and others are trademarks or registered trademarks of Silicon Labs. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. Wi-Fi is a registered trademark of the Wi-Fi Alliance. All other products or brand names mentioned herein are trademarks of their respective holders.。
DaGu WirelessControl Car 使用指南说明书
Welcome to DaGu WirelessControl Car（Read Me Before Using）Now this production fit out with Bluetooth V2.0and control through by android apps.Power with lithium battery,you may charge before using.Device FeaturesNO Item Specification1Supply Voltage5V~6V2Communication range10meters T ype3Size227*146*87mm（L*W*H）4duration of flight120min1.Apps to Android&CheckApps descriptions:This app runs on Android and rom must be2.1or higher.ONLY can connect with our production for better experience.This app can connect with most of our production.Version Beta1.0.1.1How to apps to AndroidFirst,connecting the PC with your phone.And then,found the MagicCar.apk on the disk and copy to your phone.With file manager build the apps.You can find file manager through the Market.1.2Check the productionInspect the box with all complete,according to the instruction inspect related material,Appearance,Figure C-1：Figure C-1Device charging by using the USB,Supply Voltage5V,you should not use higher than 6V.The USB will turn red LED when you charge and turn off by fully charge.Look at C-2:Figure C-2Figure C-3shows the board equips POWER LED,BLUETOOTH LED(it will flicker without connected and keeps on after connected),BREATHING/Status LED,SPEED LED(represent the speed degree).When low power,the SPEED LED WILL FLICKER AND BREATHING LED WILL NOLONGER BREATH,this remind you to recharge.Figure C-31.3Running MagicCarRunning app Figure9shows the app's icon：Figure9.App iconAnd you will see the main activity,Control with touch screen,and virtual control bar and gravity sensor.The other part shows more details,direction speed and so on.when you turn on the sensor you should remember turn off or adjust by set neutral.Figure10.Main ActivityNext Step show connected with device,push menu with Android,and select connect device.Select search button and you will found device linvor.Pair with secret key“1234”or“0000”,Figure11：Figure11.ConnectingSelect device which should be connected,look at Figure12：Figure12.Connect devicesPush button Back on the phone,you will see Exit warn.REMEMBER TURN OFF BLUETOOTH UNLESS YOU NEED NOT.Figure13：Figure13.ExitAll are finish learning how to use app,now you can play with the car and make good experience！With our production gave you better experience!2.DetailsMagicCar.apk belongs to AREXX and product series affiliate software,version is Beta1.0.For more good experience,device and more information,please consult the AREXX web site at .。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Android1、在开发android应用程序之前，首先了解android的整体架构。
图1是android架构。
图 1 android架构应用程序Android会同一个核心应用程序包一起发布，该应用程序包包括email客户端，SMS短消息程序，日历，地图，浏览器，联系人管理程序等。
所有的应用程序都是用JA V A编写的。
Android 应用程序框架开发者也完全可以访问核心应用程序所使用的API框架。
该应用程序架构用来简化组件软件的重用；任何一个应用程序都可以发布它的功能块并且任何其它的应用程序都可以使用其所发布的功能块（不过得遵循框架的安全性限制）。
该应用程序重用机制使得组建可以被用户替换。
以下所有的应用程序都由一系列的服务和系统组成，包括：一个可扩展的视图（Views）可以用来建应用程序，包括列表（lists），网格（grids），文本框（text boxes），按钮（buttons），甚至包括一个可嵌入的web浏览器。
内容管理器（Content Providers）使得应用程序可以访问另一个应用程序的数据（如联系人数据库），或者共享它们自己的数据。
一个资源管理器（Resource Manager）提供非代码资源的访问，如本地字符串，图形，和分层文件（ layout files）。
一个通知管理器（Notification Manager）使得应用程序可以在状态栏中显示客户通知信息。
一个活动类管理器（Activity Manager）用来管理应用程序生命周期并提供常用的导航回退功能。
有关更多的细节和怎样从头写一个应用程序，请参考写一个 Android 应用程序部分。
Android 程序库Android 包括一个被Android系统中各种不同组件所使用的C/C++库集。
该库通过 Android 应用程序框架为开发者提供服务。
以下是一些主要的核心库：系统C库 - 一个从BSD继承来的标准C系统函数库（libc），专门为基于embedded linux 的设备定制。
媒体库 - 基于 PacketVideo OpenCORE；该库支持录放，并且可以录制许多流行的音频视频格式，还有静态印像文件包括MPEG4, H.264, MP3, AAC, AMR, JPG, PNG。
Surface Manager - 对显示子系统的管理，并且为多个应用程序提供2D和3D图层的无缝融合。
LibWebCore - 一个最新的web浏览器引擎用来支持Android浏览器和一个可嵌入的web视图。
SGL - 一个内置的2D图形引擎 3D libraries - 基于OpenGL ES 1.0 APIs实现；该库可以使用硬件3D加速（如果可用）或者使用高度优化的3D软加速。
FreeType - 位图（bitmap）和向量（vector）字体显示。
SQLite - 一个对于所有应用程序可用，功能强劲的轻型关系型数据库引擎。
Android 运行库Android 包括了一个核心库，该核心库提供了JA V A编程语言核心库的大多数功能。
每一个Android应用程序都在它自己的进程中运行，都拥有一个独立的Dalvik虚拟机实例。
Dalvik是针对于同时高效地运行多个VMs来实现的。
Dalvik虚拟机执行.dex的Dalvik可执行文件，该格式文件针对最小内存使用做了优化。
该虚拟机是基于寄存器的，所有的类都经由JA V A汇编器编译，然后通过SDK中的dx工具转化成.dex格式由虚拟机执行。
Dalvik虚拟机依赖于linux的一些功能，比如线程机制和底层内存管理机制。
Linux 内核Android 的核心系统服务依赖于 Linux 2.6 内核，如安全性，内存管理，进程管理，网络协议栈和驱动模型。
Linux 内核也同时作为硬件和软件堆栈之间的硬件抽象层。
2、开发环境建立（windows）不同操作系统上android开发环境的搭建不太一样，下面说一下windows上android开发环境的搭建步骤和注意事项。
JDK安装Eclipse的开发环境需要JRE的支持，如果没有JRE，则启动Eclipse时会报告错误。
JDK 可以在SUN的官方网站/downloads/下载，开发android应用程序的时候需要完整的JDK（JDK包含了JRE），且要求其版本在1.5+以上，因此可以选择Java SE （JDK）6。
直接运行安装即可。
如果安装成功，则在DOS命令行输入“java -version”，屏幕应该出现java的版本信息：C:\Documents and Settings\Administrator>java -versionjava version "1.6.0_13"Java(TM) SE Runtime Environment (build 1.6.0_13-b03)Java HotSpot(TM) Client VM (build 11.3-b02, mixed mode, sharing)EclipseEclipse可以在 http://www. /downloads/ 下载（如果已经被和谐就只能在其他地方下载了）。
直接解压到一个目录就可以了。
点击exlipse.exe可执行文件运行，eclipse能自动找到用户先期安装的JDK路径，但是在第一次打开的时候可能让用户设置一个工作目录，这个可以根据自己需要来进行设置。
Android SDK安装好JDK和eclipse后，需要下载安装android的SDK，可以到/下载，可以根据自己的需要下载不同的sdk。
解压到一个目录下后，把tools的绝对路径添加到系统环境变量的PATH中，如果输入android –h命令有如下返回则表示SDK安装成功：android [global options] action [action options]Global options:-h --help This help.-s --silent Silent mode: only errors are printed out.ADTAndroid 为Eclipse 定制了一个插件，即Android Development Tools（ADT），目的是为用户提供一个强大的综合环境用于开发Android应用程序。
ADT扩展了Eclipse的功能，可以让用户快速地建立Android项目，创建应用程序界面，在基于Android框架API的基础上添加组件，以及用SDK工具集调试应用程序，甚至导出签名（或未签名）的APKs以便发行应用程序。
安装Android Development Tools plug-in，打开 Eclipse IDE。
依次单击 Menu项中的 Help →Software Updates 项。
在弹出的对话框中，选择“Available Software”标签。
单击“Add Site...”，输入/Android/eclipse/，点击OK。
然后就可以看到可用的插件。
选择“Android Developer Tools”和“Android DDMS”，单击“install”按钮，然后就可以看到其安装界面，安装完成后，会提示用户重启Eclipse。
注意：不同版本的Eclipse安装插件的方法和步骤是不同的，如上演示的是基于Eclipse 3.4版本的，如果使用的是3.3版本的Eclipse，那么其步骤可能存在一些不同。
设置SDK HOME安装好插件后，还需要做如下配置才可以使用Eclipse创建Android项目，需要设置Android SDK主目录。
依次单击“windows→Preferences”项。
在弹出的界面左侧可以看到“Android”项，选中Android后，在右侧设定 Android SDK 所在目录为 SDK Location，单击“OK”按钮完成安装。
开发环境验证新建一个项目来验证环境是否可以正常工作，依次选择“File→New→Project”项，在弹出的对话框上可以看到Android，点击选择“Android Project”,弹出New Android Project框，再填写好Project name，Application name，Package name，Create Activity并选好Build Target就可以了，直接Finish。
如果通过上述操作，说明已经在Windows平台上搭建好了开发环境。
创建Android 虚拟设备可能有很多人刚开始的时候就想直接运行上一步骤中创建的项目，实际上这是行不通的，因为在这之前必须要创建一个android虚拟设备。
在Android SDK1.5版以后的Android开发中，必须创建至少一个A VD，A VD全称为Android虚拟设备（Android Virtual Device），每个A VD 模拟了一套虚拟设备来运行Android平台，这个平台至少要有自己的内核，系统图像和数据分区，还可以有自己的SD卡和用户数据以及外观显示等。
由于Android SDK1.5以后支持多个平台和外观显示，作为开发者创建不同的A VD来模拟和测试不同的平台环境，创建A VD 方法如下：(1)在CMD下输入android list targets查看可用的平台。
(2)创建A VD。
按照“android create avd --name <your_avd_name> --target <targetID>”格式创建A VD，其中your_avd_name是需要创建的A VD的名字，targetID是第一步骤输出的id号。
这样就创建了一个自定义的A VD(Android Virtual Device)，然后，只要在Eclipse的Run Configurations 里面指定一个A VD，即在Target下选中自己定义的这个A VD，点击apply，单击“Run”按钮将运行模拟器。