从树莓派raspberry pi看开
树莓派参数
树莓派参数
【最新版】
目录
1.树莓派简介
2.树莓派的硬件参数
3.树莓派的软件参数
4.树莓派参数的影响因素
5.如何选择合适的树莓派参数
正文
树莓派是一款基于 Linux 系统的微型电脑，体积小巧，功能强大，被广泛应用于编程教育、物联网、智能家居等领域。
在选择树莓派时，了解其参数是至关重要的。
树莓派的参数主要包括硬件参数和软件参数。
首先，我们来了解一下树莓派的硬件参数。
树莓派的硬件参数主要包括处理器、内存、存储空间、网络接口、USB 接口等。
其中，处理器是树莓派的核心，决定了其性能。
目前，常见的树莓派处理器有单核、双核、四核等，性能逐渐提升。
内存和存储空间则影响了树莓派的运行速度和可承载的任务数量。
一般来说，内存越大，运行速度越快；存储空间越大，可安装的应用和存储的数据越多。
其次，树莓派的软件参数主要包括操作系统版本、编程语言支持等。
树莓派通常搭载的操作系统是基于 Debian 的 Raspbian，这是一个专门为树莓派定制的操作系统。
在编程语言方面，树莓派支持多种编程语言，如 Python、C++、Java 等，这取决于用户想要实现的功能和使用场景。
在选择树莓派参数时，需要考虑实际需求和预算。
如果用于编程教育，选择单核处理器、512MB 内存、16GB 存储空间的树莓派就足够了。
如果用于物联网项目，可能需要更高性能的处理器、更大的内存和存储空间。
此外，还要考虑网络接口、USB 接口等是否满足需求。
总之，了解树莓派的参数对于选择合适的树莓派至关重要。
RaspberryPi单片机开发入门指南
RaspberryPi单片机开发入门指南第一章：什么是Raspberry Pi单片机？Raspberry Pi单片机是一款基于Linux操作系统的微型计算机，采用ARM架构，具有强大的计算和通信能力。
它可以通过外部设备进行控制和交互，适用于各种嵌入式系统开发和物联网应用。
本章将介绍Raspberry Pi单片机的基本概念和硬件组成，为读者提供深入了解该开发平台的基础知识。
1.1 Raspberry Pi的起源和发展Raspberry Pi最初是由英国的树莓派基金会于2012年推出的，旨在推动计算机教育的发展。
自那以后，它迅速受到了全球范围内的开发者和制造商的关注和使用。
1.2 Raspberry Pi的硬件组成Raspberry Pi的硬件组成包括主板、处理器、内存、存储器、输入输出接口等部件。
它支持多种操作系统，如Raspbian、Ubuntu Mate等，可以通过外接显示器、键盘、鼠标等进行控制和操作。
第二章：Raspberry Pi单片机的环境搭建在开始使用Raspberry Pi单片机进行开发之前，我们需要先搭建开发环境并进行必要的配置。
2.1 安装操作系统Raspberry Pi单片机支持多种操作系统，但最常用的是Raspbian。
本节将介绍如何下载和安装Raspbian系统，以及操作系统的基本设置。
2.2 连接硬件设备Raspberry Pi单片机可以通过多种外设进行交互和控制。
本节将介绍如何连接显示器、键盘、鼠标等外设，并进行必要的驱动安装和配置。
2.3 配置网络和远程访问通过网络连接，我们可以实现对Raspberry Pi单片机的远程访问和控制，方便开发和调试。
本节将介绍如何配置网络连接和远程访问。
第三章：Raspberry Pi单片机编程入门在搭建好开发环境之后，我们可以开始进行Raspberry Pi单片机的编程了。
本章将介绍常用的编程语言和开发工具，以及基本的编程技巧和注意事项。
树莓派有什么用_树莓派能用来做啥_树莓派新手入门教程
树莓派有什么用_树莓派能用来做啥_树莓派新手入门教程树莓派功能Raspberry Pi中文名即树莓派，是为学习计算机编程教育而设计，只有信用卡大小的微型电脑，其系统基于Linux。
就像其他任何一台运行Linux 系统的台式计算机或者便携式计算机那样，利用Raspberry Pi 可以做很多事情。
当然，也难免有一点点不同。
普通的计算机主板都是依靠硬盘来存储数据，但是Raspberry Pi 来说使用SD 卡作为“硬盘”，你也可以外接USB 硬盘。
利用Raspberry Pi 可以编辑Office 文档、浏览网页、玩游戏—即使玩需要强大的图形加速器支持的游戏也没有问题，如《雷神之锤》（Quake ）。
Raspberry Pi 的低价意味着其用途更加广泛，将其打造成卓越的多媒体中心也是一个不错的选择。
利用Raspberry Pi 可以播放视频，甚至可以通过电视机的USB 接口供电。
树莓派能用来做啥树莓派就是一个玩具。
给喜欢编程，喜欢用计算机控制一些玩具的人用的。
它比较省电，功率小。
接近嵌入式系统。
长期不关机也不会耗很多电。
但是比arduio 之类的耗电还是略大了些。
树莓派整个儿就是用来教育用的。
给孩子，给爱好者们一个接触嵌入式编程，工控的平台。
树莓派虽小，但五脏俱全和普通电脑无异。
电脑能做的大部分事情，在树莓派上都能做，而树莓派以其低能耗、移动便携性、GPIO等特性，很多在普通电脑上难以做好的事情，用树莓派却是很适合的。
树莓派新手入门教程型号：1）RaspberryPi3代B型2）RaspberryPizero（含zerow）配件：树莓派本身只是一个主机。
要运行起来，必须有配件。
（1）电源MicroUSB接口的手机充电器，就可以充当电源，但输出必须是5V电压、至少2A电流。
树莓派官方设置工具raspi
树莓派官方设置工具raspi>>>PCB在线定制破冰直降，全线88折<<<一、简介：raspi-config是Raspberry PI官方Raspbian镜像自带的一个系统配置工具。
它都可以做什么呢？让我们来学习一下吧。
raspi-config，会在系统首次启动时自动运行，就是那个蓝色背景，灰底黑字的界面。
首次自动运行之后，下次就不会自动运行了，若想手动运行，请以root身份运行：sudo raspi-config二、基本操作：键盘上的上、下键进行菜单项目的选择，回车键进入，左右键进行OK和cancel等按钮的选择，Esc键取消返回，空格键为选择定选项。
最后改完后选择Finish退出即可，可能会重启。
三、基本词汇：Enable 启用Disable 禁用Back 返回Cance l取消Finish 完成OK 确认四、实战：Raspberry Pi Software Configuration Tool(raspi-config)Setup Options1 Expand Filesystem扩展文件系统（默认镜像写入SD卡后，根分区不会使用剩余的SD卡空间，造成空间浪费，运行此选项后会把根分区扩展到整个SD 卡，最大效率使用SD卡）按回车即可。
2 Change User Password改变默认pi用户的密码，按回车后输入pi用户的新密码。
3 Enable Boot to Desktop/Scratch启动时进入的环境选择Console Text console, requiring login(default)启动时进入字符控制台，需要进行登录（默认项）Desktop log in as user 'pi' at the graphical desktop启动时进入LXDE图形界面的桌面Scratch Start the Scratch programming environment upon boot启动时进入Scratch编程环境，进入后，可以点File->Exit退出，然后在退出过程中按Ctrl+C进入控制台。
学习使用RaspberryPi进行物联网开发
学习使用RaspberryPi进行物联网开发物联网（Internet of Things，简称IoT）是指通过互联网连接和通信技术实现物件间的互联互通，从而使得人与物、物与物之间能够实现智能化的互动与控制。
而Raspberry Pi是一款基于ARM架构的小型计算机，具有低功耗、体积小、价格便宜等优点，非常适合用于物联网开发。
本文将从硬件概述、操作系统安装、程序开发以及案例展示几个方面详细介绍学习使用Raspberry Pi进行物联网开发的相关内容。
第一章：硬件概述Raspberry Pi是一个由博树基金会开发的小型单板计算机，其最新的版本为Raspberry Pi 4。
该硬件具有四核ARM处理器、1G/2G/4G的内存、多个USB接口、以太网接口等，能够满足物联网设备的需求。
此外，Raspberry Pi还提供了GPIO（通用输入输出）接口，方便连接各类传感器和执行器。
第二章：操作系统安装Raspberry Pi支持多种操作系统，其中最常用的是Raspbian。
我们可以从Raspberry Pi的官方网站下载Raspbian镜像文件，并通过SD卡烧录到Raspberry Pi中。
安装好操作系统后，我们还需要进行一些基本的配置，比如设置网络连接、更新软件包等。
第三章：编程语言选择在Raspberry Pi上进行物联网开发，我们可以选择多种编程语言，比如Python、C++等。
其中，Python是非常适合初学者的一种语言，因为它易于学习和使用，同时拥有丰富的第三方库支持。
可以通过Python编写的脚本来读取传感器数据、控制执行器等。
对于一些复杂的应用场景，C++等编程语言也是不错的选择。
第四章：GPIO编程Raspberry Pi的GPIO接口提供了多个GPIO引脚，用于连接传感器和执行器。
我们可以使用Python编写GPIO控制程序，通过读取或写入GPIO引脚的电平状态来实现与外部设备的通信。
比如，我们可以编写一个脚本通过读取传感器的数据来实时监测室内温度，并控制空调的开关。
树莓派参数
树莓派参数
树莓派是一款小型的单板计算机，具有以下参数：
1. 处理器：树莓派使用不同型号的处理器，如树莓派4型采用Broadcom BCM2711，树莓派3型采用Broadcom BCM2837。
2. 内存：树莓派的内存容量也不同，树莓派4型有2GB或
4GB可选，树莓派3型为1GB。
3. 存储：树莓派有一个MicroSD卡插槽用于存储操作系统和数据，可以选择不同容量的MicroSD卡作为存储介质。
4. 网络：树莓派支持以太网、Wi-Fi和蓝牙连接，树莓派4型还支持Gigabit以太网。
5. 接口：树莓派提供多个通用输入输出（GPIO）引脚，以及USB、HDMI、音频、摄像头、显示器等接口。
6. 操作系统：树莓派支持多种操作系统，如Raspberry Pi OS （以前称为Raspbian）、Ubuntu、Windows 10 IoT Core等。
7. 电源：树莓派使用Micro USB或USB-C接口供电，可通过电源适配器、电池或其他电源设备供电。
8. 尺寸：树莓派的尺寸为约85.6mm x 56mm x 17mm，非常小巧方便携带。
这些参数可能因为不同型号的树莓派而有所变化，以上是一些常见的参数。
Raspberry Pi Start Guide 树莓派教程
Raspberry PiGetting Started Guide3/20121.0ComponentsRSVsnRaspberry Pi Getting Started GuidePage 21. Raspberry Pi Basic Hardware Setup1.1. Extra Hardware You Will NeedThe Raspberry Pi board contains a processor and graphics chip, program memory (RAM) and various interfaces and connectors for external devices. Some of these devices are essential, others are optional. RPi operates in the same way as a standard PC, requiring a keyboard for command entry, a display unit and a power supply.It also requires ‘mass-storage’, but a hard disk drive of the type found in a typical PC is not really in keeping with the miniature size of RPi. Instead we will use an SD Flash memory card normally used in digital cameras, configured in such a way to ‘look like’ a hard drive to RPi’s processor. RPi will‘boot’ (load the Operating System into RAM) from this card in the same way as a PC ‘boots up’ into Windows from its hard disk.The following are essential to get started:•SD card containing Linux Operating system• USB keyboard•TV or monitor (with HDMI, DVI, Composite or SCART input)•Power supply (see Section 1.6 below)•Video cable to suit the TV or monitor usedRecommended optional extras include:• USB mouse•Internet connection, Model A or B: USB WiFi adaptor•Internet connection, Model B only: LAN (Ethernet) cable• Powered USB hub• CaseEverything Together1.2. Connecting1. Plug the preloaded SD Card into the RPi.2. Plug the USB keyboard and mouse into the RPi, perhaps via a USB hub. Connect the Hubto power, if necessary.3. Plug a video cable into the screen (TV or monitor) and into the RPi.4. Plug your extras into the RPi (USB WiFi, Ethernet cable, external hard drive etc.). This iswhere you may really need a USB hub.5. Ensure that your USB hub (if any) and screen are working.6. Plug the power supply into the mains socket.7. With your screen on, plug the power supply into the RPi microUSB socket.8. The RPi should boot up and display messages on the screen.It is always recommended to connect the MicroUSB power to the unit last (while most connections can be made live, it is best practice to connect items such as displays with the power turned off).The RPi may take a long time to boot when powered-on for the first time, so be patient!Raspberry Pi Getting Started Guide Page 31.3. Operating System SD CardAs the RPi has no internal mass storage or built-in operating system it requires an SD card preloaded with a version of the Linux Operating System.•You can create your own preloaded card using any suitable SD card (4GBytes or above) you have to hand. We suggest you use a new blank card to avoid arguments over lost pictures.•Preloaded SD cards will be available from the RPi Shop.Mouse1.4. Keyboard&Most standard USB keyboards and mice will work with the RPi. Wireless keyboard/mice should also function, and only require a single USB port for an RF dongle. In order to use a Bluetooth keyboard or mouse you will need a Bluetooth USB dongle, which again uses a single port.Remember that the Model A has a single USB port and the Model B has two (typically a keyboard and mouse will use a USB port each).1.5. DisplayThere are two main connection options for the RPi display, HDMI (High Definition) and Composite (Standard Definition).•HD TVs and many LCD monitors can be connected using a full-size 'male' HDMI cable, and with an inexpensive adaptor if DVI is used. HDMI versions 1.3 and 1.4 are supported and a version 1.4 cable is recommended. The RPi outputs audio and video via HMDI, but does not support HDMI input.•Older TVs can be connected using Composite video (a yellow-to-yellow RCA cable) or via SCART (using a Composite video to SCART adaptor). Both PAL and NTSC format TVs are supported.When using a composite video connection, audio is available from the 3.5mm jack socket, and can be sent to your TV, headphones or an amplifier. To send audio to your TV, you will need a cable which adapts from 3.5mm to double (red and white) RCA connectors.Note: There is no analogue VGA output available. This is the connection required by many computer monitors, apart from the latest ones. If you have a monitor with only a D-shaped plug containing 15 pins, then it is unsuitable.Supply1.6. PowerThe unit is powered via the microUSB connector (only the power pins are connected, so it will not transfer data over this connection). A standard modern phone charger with a microUSB connector will do, providing it can supply at least 700mA at +5Vdc. Check your power supply's ratings carefully. Suitable mains adaptors will be available from the RPi Shop and are recommended if you are unsure what to use.Note: The individual USB ports on a powered hub or a PC are usually rated to provide 500mA maximum. If you wish to use either of these as a power source then you will need a special cable which plugs into two ports providing a combined current capability of 1000mA.Raspberry Pi Getting Started Guide Page 41.7. CablesYou will need one or more cables to connect up your RPi system.• Video cable alternatives:o HDMI-A cableo HDMI-A cable + DVI adaptero Composite video cableo Composite video cable + SCART adaptor•Audio cable (not needed if you use the HDMI video connection to a TV)•Ethernet/LAN cable (Model B only)1.8. Additional PeripheralsYou may decide you want to use various other devices with your RPi, such as Flash Drives/Portable Hard Drives, Speakers etc.1.8.1. Internet ConnectivityThis may be via an Ethernet/LAN cable (standard RJ45 connector) or a USB WiFi adaptor. The RPi Model B Ethernet port is auto-sensing which means that it may be connected to a router or directly to another computer (without the need for a crossover cable).1.8.2. USB hubIn order to connect additional devices to the RPi, you may want to obtain a USB hub, which will allow multiple devices to be used.It is recommended that a powered hub is used - this will provide any additional power to the devices without affecting the RPi itself.A USB 2.0 model is recommended. USB 1.1 is fine for keyboards and mice, but may not be fast enough for other accessories.1.8.3. CaseSince the RPi is supplied without a case, it will be important to ensure that you do not use it in places where it will come into contact with conductive metal or liquids, unless suitably protected.1.8.4. Expansion & Low-Level PeripheralsIf you plan on making use of the low-level interfaces available on the RPi, then ensure you have a suitable plug for the GPIO header pins.Also if you have a particular low-level project in mind, then ensure you design-in suitable protection circuits to keep your RPi safe.Raspberry Pi Getting Started Guide Page 52. Raspberry Pi Advanced Setup (Geeks only)hardware and setting up2.1. FindingYou'll need a preloaded SD card, USB keyboard, TV/Monitor (with HDMI/ DVI/ Composite/SCART input), and power supply (USB charger or a USB port from a powered USB Hub or another computer). You'll likely also want a USB mouse, a case, and a USB hub (a necessity for Model A).A powered USB hub will reduce the demand on the RPi. To connect to the Internet, you'll need either an Ethernet/LAN cable (Model B) or a USB WiFi adaptor (either model).When setting up, it is advisable to connect the power after everything else is ready.2.2. SerialconnectionThe Serial Port is a simple and uncomplicated method to connect to the RPi. The communication depends on byte wise data transmission, is easy to setup and is generally available even before boot time.2.2.1. First interaction with the boardConnect the serial cable to the COM port in the RPi, and connect the other end to the COM port or USB Serial Adapter in the computer.2.2.2. Serial ParametersThe following parameters are needed to connect to the RPi. All parametersexcept Port_Name and Speed are default values and may not need to be set.Port_Name: Linux automatically assigns different names for different types of serial connectors. Choose your option:•Standard Serial Port: ttyS0 ... ttySn•USB Serial Port Adapter: ttyUSB0 ... ttyUSBn• Speed: 115200• Bits: 8• Parity: None•Stop Bits: 1•Flow Control: NoneThe Serial Port is generally usable by the users in the group dialout. To add oneself tothe group dialout the the following command needs to be executed with root privileges:$useradd -G {dialout} your_name2.2.3. Super Easy Way using GNU ScreenEnter the command below into a terminal windowscreen Port_Name 115200Raspberry Pi Getting Started Guide Page 62.2.4. Super Easy Way using MinicomRun minicom with the following parameters:minicom -b 115200 -o -D Port_Name2.2.5. GUI method with GtkTermStart GtkTerm, select Configuration->Port and enter the values above in the labelled fields.2.2.6. Windows UsersWindows 7 or Vista users must download putty or a comparable terminal program. Users of XP and below can choose between using putty and Hyperterminal.2.2.7. First DialogIf you get the prompt below, you are connected to the Raspberry Pi shell!prompt> #First command you might want try is "help":prompt> # helpIf you get some output, you are correctly connected to the Raspberry Pi! Congratulations!setup2.3. SDcardNow we want to install a GNU/Linux distro on an SD card and make space for our stuff. You can use either an SD or SDHC card. In the latter case of course take care that your PC card reader also supports SDHC. Be aware that you are not dealing with an x86 processor, but instead a completely different architecture called ARM, so don't forget to install the ARM port for the distro you are planning to use.2.3.1. Formatting the SD card via the mkcard.txt script1. Download mkcard.txt .2. $ chmod +x mkcard.txt3. $ ./mkcard.txt /dev/sd x, where x is the letter of the card. You can find this by inserting yourcard and then running dmesg | tail.You should see the messages about the device being mounted in the log. Mine mounts as sdc. Once run, your card should be formatted.2.3.2. Formatting the SD card via fdisk "Expert mode"First, lets clear the partition table:===========================================================================$ sudo fdisk /dev/sdbCommand (m for help): oRaspberry Pi Getting Started Guide Page 7Building a new DOS disklabel. Changes will remain in memory only,until you decide to write them. After that, of course, the previouscontent won't be recoverable.Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)===========================================================================Print card info:=========================================================================== Command (m for help): pDisk /dev/sdb: 128 MB, 128450560 bytes....===========================================================================Make a note of the card size in bytes. You will need it later.Then go into "Expert mode":=========================================================================== Command (m for help): x===========================================================================Now we want to set the geometry to 255 heads, 63 sectors and calculate the number of cylinders required for the particular SD/MMC card:=========================================================================== Expert command (m for help): hNumber of heads (1-256, default 4): 255Expert command (m for help): sNumber of sectors (1-63, default 62): 63Warning: setting sector offset for DOS compatiblity=========================================================================== NOTE: Be especially careful in the next step. First calculate the number of cylinders as follows:C = B / 255 / 63 / 512 where• B = Card size in bytes (The number you wrote down earlier.)• C = Number of cylindersWhen you get the number, round it DOWN. Thus, if you got C = 108.8 you'll be using 108 cylinders. =========================================================================== Expert command (m for help): cNumber of cylinders (1-1048576, default 1011): 15=========================================================================== Raspberry Pi Getting Started Guide Page 8In this case a 128MB card is used (reported as 128450560 bytes by fdisk above), thus128450560 / 255 / 63 / 512 = 15.6 rounded down to 15 cylinders. There are 255 heads, 63 sectors, 512 bytes per sector.So far so good, now we want to create two partitions: one for the boot image, one for our distro. Create the FAT32 partition for booting and transferring files from Windows. Mark it as bootable.=========================================================================== Expert command (m for help): rCommand (m for help): nCommand actione extendedp primary partition (1-4)pPartition number (1-4): 1First cylinder (1-245, default 1): (press Enter)Using default value 1Last cylinder or +size or +sizeM or +sizeK (1-245, default 245): +50Command (m for help): tSelected partition 1Hex code (type L to list codes): cChanged system type of partition 1 to c (W95 FAT32 (LBA))Command (m for help): aPartition number (1-4): 1=========================================================================== Create the Linux partition for the root file system.=========================================================================== Command (m for help): nCommand actione extendedp primary partition (1-4)pPartition number (1-4): 2First cylinder (52-245, default 52): (press Enter)Using default value 52Last cylinder or +size or +sizeM or +sizeK (52-245, default 245):(pressEnter)Using default value 245===========================================================================Print and save the new partition records.=========================================================================== Command (m for help): pDisk /dev/sdc: 2021 MB, 2021654528 bytes255 heads, 63 sectors/track, 245 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesRaspberry Pi Getting Started Guide Page 9Raspberry Pi Getting Started GuidePage 10Device Boot Start End Blocks Id System/dev/sdc1 * 1 51 409626 c W95 FAT32 (LBA) /dev/sdc2 52 245 1558305 83 LinuxCommand (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.WARNING: Re-reading the partition table failed with error 16: Device orresource busy. The kernel still uses the old table. The new table will be used at the next reboot.WARNING: If you have created or modified any DOS 6.x partitions, please see the fdisk manual page for additional information.Syncing disks.===========================================================================Now we've got both partitions, next step is formatting them.NOTE : If the partitions (/dev/sdc1 and /dev/sdc2) do not exist, you should unplug the card and plug it back in. Linux will now be able to detect the new partitions.===========================================================================$ sudo mkfs.msdos -F 32 /dev/sdc1 -n LABELmkfs.msdos 2.11 (12 Mar 2005)$ sudo mkfs.ext3 /dev/sdc2mke2fs 1.40-WIP (14-Nov-2006)Filesystem label=OS type: LinuxBlock size=4096 (log=2)Fragment size=4096 (log=2)195072 inodes, 389576 blocks19478 blocks (5.00%) reserved for the super userFirst data block=0Maximum filesystem blocks=40265318412 block groups32768 blocks per group, 32768 fragments per group16256 inodes per groupSuperblock backups stored on blocks:32768, 98304, 163840, 229376, 294912Writing inode tables: doneCreating journal (8192 blocks): doneWriting superblocks and filesystem accounting information:=========================================================================== All done!NOTE : For convenience, you can add the -L option to the mkfs.ext3 command to assign a volume label to the new ext3 filesystem. If you do that, the new (automatic) mount point under /media when you insert that SD card into some Linux hosts will be based on that label.If there's no label, the new mount point will most likely be a long hstring, so assigning a label makes manual mounting on the host more convenient.2.4. Setting up the boot partitionThe boot partition must contain:•bootcode.bin : 2nd stage bootloader, starts with SDRAM disabled•loader.bin : 3rd stage bootloader, starts with SDRAM enabled•start.elf: The GPU binary firmware image, provided by the foundation.•kernel.img: The OS kernel to load on the ARM processor. Normally this is Linux -see instructions for compiling a kernel.•cmdline.txt: Parameters passed to the kernel on boot.Optional files:•config.txt: A configuration file read by the GPU. Use this to override set the video mode, alter system clock speeds, voltages, etc.•vlls directory: Additional GPU code, e.g. extra CODECs. Not present in the initial release.2.5. Additional files supplied by RPi FoundationThese files are also present on the SD cards supplied by the Foundation.Additional kernels. Rename over kernel.img to use them (ensure you have a backup of the original kernel.img first!):•kernel_emergency.img : kernel with busybox rootfs. You can use this to repair the main Linux partition using e2fsck if the Linux partition gets corrupted.Additional GPU firmware images, rename over start.elf to use them:•arm128_start.elf : 128MB ARM, 128MB GPU split (use this for heavy 3D work, possibly also required for some video decoding)•arm192_start.elf : 192MB ARM, 64MB GPU split (this is the default)•arm224_start.elf : 224MB ARM, 32MB GPU split (use this for Linux only with no 3D or video processing. It’s enough for the 1080p frame buffer, but not much else)2.6. Writing the image to the SDcard and booting GNU/LinuxThe easiest way to do this is to use PiCard. It even saves you from some hassles explained above. You will need your SD card + reader and a Linux PC to use PiCard. After that, just plug the card into your Rpi.2.7. Wire up your Raspberry Pi and power it upAs explained in Section 1Cloning/Backup2.8. SDCardNote: Update these instructions if required once they've been tried.Raspberry Pi Getting Started Guide Page 11From windows you can copy the full SD card by using Win32DiskImager. Alternatively, you can use the following instructions;Note: Many built-in SD card readers do not work, so if you have problems use an external SD-USB adapter for this.2.9. Required Software Setup•Download a windows utility dd.exe from /dd•Rename it: windd.exe(This executable can to write to your hard disk so exercise caution using it!)•Make a copy named: dd-removable.exe(That executable refuses to write to your hard disk as it is named dd-removable As long as you use dd-removable.exe you cannot lose your hard disk)•Connect an SD card to the computer• Run: "dd-removable –list"Should give something like this:rawwrite dd for windows version 0.6beta3.Written by John Newbigin <jn@.au>This program is covered by terms of the GPL Version 2.NT Block Device Objects\\?\Device\Harddisk1\Partition0link to \\?\Device\Harddisk1\DR8Removable media other than floppy. Block size = 512size is 4075290624 bytesThis "\\?\Device\Harddisk1\Partition0" is the part you need.an image from the SD Card2.10. ReadingBEWARE: DO THIS WRONG AND YOU MIGHT CORRUPT YOUR HARD DISK!Obviously, you can NOT use 'dd-removable' to read an image as that executable refuses towrite to your hard disk (so extra care is required here as you use 'windd').• To read an SD-card image from the SD-card use:windd bs=1M if=\\?\Device\Harddisk1\Partition0 of=THE_IMAGE_READ –sizeYour disk name ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^2.11. Copying an image to the SD CardBEWARE: DO THIS WRONG AND YOU MIGHT CORRUPT YOUR HARD DISK!Raspberry Pi Getting Started Guide Page 12• To copy an image named "THEIMAGE" to the SD-card do this:dd-removable bs=1M if=THEIMAGE of=\\?\Device\Harddisk1\Partition0Your disk name ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^Development/Proving2.12. SoftwareA supported platform for the Raspberry is Qt , which is already being worked on. C/C++ is supported through a gcc cross-compiling tool chain.After compiling, using QEMU and a Linux VM would be one way of testing your apps. This also works on Windows. Search the forum for the readymade ARM images. The choice of programming languages, IDEs and other tools on the RPi is only determined by:•The operating system compatibility (at the moment the specific Linux distro used)•The status of the respective ARM package repositories and their binary compatibility•The possibility to build other software + its dependencies for the RPi from sources.For more guides and projects involving the Raspberry Pi, see RPi Projects/RPi_ProjectsRaspberry Pi Getting Started Guide Page 13。
树莓派系列教程1：人生若只如初见
树莓派是什么？Raspberry Pi(中文名为“树莓派”,简写为RPi，或者RasPi/RPi)是为学生计算机编程教育而设计，只有信用卡大小的卡片式电脑，其系统基于Linux。
第一次接触树莓派的时候也是刚学linux系统。
抱着玩玩的心态买了一块树莓派B+,刚拿到手的是有点和想象的不一样，就只有一个盒子装在，真的只有一张信用卡大小，真的很吃惊。
自己动手刷了一个系统启动起来的时候真的很神奇，这小小的身板真的是五脏俱全,一个便携的mini pc.然后就一发不可收拾，玩得不亦乐乎。
SSH登陆，xrdp远程桌面，家庭影院，LAMP服务器，SAMBA服务器等等，它不但是一个卡式电脑，更重要的是它引出40个管脚。
这就可以做更多的事情了。
就让我们一起走进树莓的世界……
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