Difference between revisions of "De:test"

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Hier entsteht in kürze die deutsche Version der Raspberry Pi Wiki Seite.
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[[Category: Linux]]
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[[Category: OMAP]]
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[[Category: Development Boards]]
 +
[[Category: RaspberryPi]]
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[[Category: Education]]
 +
 
 +
This page collects information about [http://www.raspberrypi.org Raspberry Pi Foundation's] ultra-low-cost (~15UKP or 25USD) Linux computer for teaching computer programming to children.
 +
 
 +
The Raspberry Pi Foundation is a UK registered charity (Registration Number 1129409) which exists to promote the study of computer science and related topics, especially at school level, and to put the fun back into learning computing. We expect this computer to have many other applications both in the developed and the developing world.
 +
 
 +
'''Please note that the Raspberry Pi isn't released yet - this page is a community work in progress in preperation for the launch'''
 +
 
 +
<div style="margin:0; margin-top:10px; margin-right:10px; border:1px solid #dfdfdf; padding:0 1em 1em 1em; background-color:#ffffcc; align:right; ">
 +
'''NEWS:'''
 +
* [http://www.raspberrypi.org/ Want to stay informed?  Announcements mailing list now active - sign up on the home page]
 +
* [http://www.raspberrypi.org/?p=28 Alpha boards are now in manufacture]
 +
</div>
 +
<br>
 +
=Events=
 +
 
 +
The following are general-interest industry events and are not an indication that Raspberry Pi will be attending, exhibiting or speaking at the event.  For Raspberry Pi event and speaker schedule, please contact press@raspberrypi.org.
 +
 
 +
* [http://overtheair.org/ Over the Air 2011: September 30th & October 1st, Bletchley Park, UK]
 +
* [http://www.csedweek.org/ Computer Science Education Week: 4th-10th December 2011, USA]
 +
 
 +
<br>
 +
 
 +
=Provisional specification=
 +
The first product is about the size of a credit card, and is designed to plug into a TV or be combined with a touch screen for a low cost tablet. The expected price is $25 for a fully-configured system.
 +
 
 +
*    700MHz Broadcom media processor featuring an ARM11 ([http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf ARM1176JZF-S]) core, Broadcom GPU core, DSP core and support for Package-on-Package (PoP) RAM
 +
*    128MiB (Model A) or 256MiB of SDRAM (Model B), stacked on top of the CPU as a PoP device
 +
*    OpenGL ES 2.0
 +
*    1080p30 H.264 high-profile decode
 +
*    Composite and HDMI video output
 +
*    One USB 2.0 port provided by the BCMxxxx
 +
*    SD/MMC/SDIO memory card slot
 +
*    General-purpose I/O (About 16 3v3) and various other interfaces, brought out to 1.27mm pin-strip
 +
*    Optional integrated 2-port USB hub and 10/100 Ethernet controller (Model B)
 +
*    Open software (Ubuntu, Iceweasel, KOffice, Python)
 +
*    Capability to support various expansion boards
 +
 
 +
=Availability=
 +
 
 +
Estimated availability (as of 1st August 2011) is end of November 2011.
 +
 
 +
=Case=
 +
 
 +
A protective case is an often-cited required accessory.  Cases are likely to be offered both directly from Raspberry Pi and from 3rd party companies such as Special Computing.
 +
 
 +
=Power Adapters=
 +
 
 +
Provisional information is that the boards will feature a Coax-style DC Jack connector accepting 6-20v (or possibly 5-16v)
 +
 
 +
=Expansion boards=
 +
 
 +
It is likely that expansion boards will be offered both by Raspberry Pi Foundation and by 3rd parties.
 +
 
 +
=Beginners guide=
 +
 
 +
You just got your new Raspberry Pi device, and now? See [[RaspberryPiBoardBeginners|beginners guides]].
 +
 
 +
=Hardware=
 +
The first product is about the size of a credit card, and is designed to plug into a TV or be combined with a touch screen accessory for a low cost tablet. The product will be available in two configurations: Model A and Model B.  The expected price is $25 for a fully-configured Model-A system and around $35 for a Model B.
 +
 
 +
==Components==
 +
(PCB IDs are those of the Model B Alpha board)
 +
 
 +
Based on a new [http://www.broadcom.com/products/Mobile-Multimedia/Mobile-Multimedia-Processors Broadcom media processor] (Raspberry Pi are currently redacting the chip model number in comments on their forum).
 +
 
 +
* SoC: Broadcom BCMxxxx media procesor system-on-chip featuring:
 +
** CPU core: [http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf ARM1176JZF-S] ARM11 core clocked at 700MHz; ARM VFP.
 +
** GPU core: an unnamed Broadcom proprietary GPU providing Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode.  There are 24 GFLOPS of general purpose compute and a bunch of texture filtering and DMA infrastructure.  Eben worked on the architecture team for this and the Raspberry Pi team are looking at how they can make some of the proprietary features available to application programmers
 +
** DSP core: There is a DSP, but there isn't currently a public API (Liz thinks the BC team are keen to make one available at some point)
 +
** RAM: 128MiB (Model A) or 256MiB (Model B) of SDRAM.  The RAM is physically stacked on top of the Broadcom media processor (package-on-package technology)
 +
* Either 1x USB 2.0 (Model A) or LAN9512 ([http://www.smsc.com/media/Downloads_Public/Data_Briefs/9512db.pdf Data Brief] | [http://www.smsc.com/media/Downloads_Public/Data_Sheets/9512.pdf Data Sheet]) providing 10/100Mb Ethernet and 2x USB 2.0 (J10: Model B)
 +
* 1.27mm header providing ~16 GPIOs at 3v3, I2C and SPI interfaces
 +
* 1.27mm header providing MIPI CSI-2 & DSI interfaces
 +
* J1: DC Jack (6-20v input provisionally)
 +
* HDMI connector providing HDMI 1.3a out
 +
* SD/MMC/SDIO memory card slot
 +
* J5: JTAG (ARM11)
 +
* J6: Audio connector: 3.5mm stereo jack
 +
* J7: Composite Video connector: RCA
 +
 
 +
 
 +
* Board size: Credit-card or smaller.
 +
* Weight: <40g?
 +
* Currently 6 layer PCB; target: 4 layer
 +
 
 +
==Manual==
 +
 
 +
Documentation will presumably be available when the product is release (current target ~November 2011)
 +
 
 +
==Schematic / Layout==
 +
 
 +
* [http://www.raspberrypi.org/wp-content/uploads/2011/07/raspberry1.png PCB mask]
 +
* [http://www.raspberrypi.org/wp-content/uploads/2011/07/pcb1.jpg Prototype1 board]
 +
 
 +
==Errata==
 +
 
 +
 
 +
==Clocking==
 +
 
 +
*  Provisional main CPU clock speed is 700MHz
 +
*  No data currently released on the GPU or other component clock speeds
 +
 
 +
==Power management==
 +
 
 +
* Target power consumption is <1W
 +
 
 +
==DLP Pico projector==
 +
 
 +
The boards have both Composite and HDMI outputs so should interface with a range of DLP Pico projectors on the market.
 +
 
 +
==Interfacing to Raw LCD Panels==
 +
 
 +
No data currently available.
 +
 
 +
If the touchscreen interface talks via USB, they choose Linux as an OS, and there's Linux support for the touchscreen, the answer would be "yes".
 +
 
 +
==General Purpose Input/Output (GPIO), I2C, SPI==
 +
There are approximately 16 spare GPIOs, which are brought out to 1.27mm pin-strip. Voltage levels are 3v3.  The connector choice is deliberately annoying to connect to directly; there is no over-voltage protection on the board so the intention is that people interested in serious interfacing will use an external board with buffers, level conversion and analog I/O rather than soldering directly onto the main board.
 +
 
 +
We also bring 2x I2C (3v3) and an SPI (3v3) interface out to the same connector.
 +
 
 +
==MIPI CSI-2 & DSI==
 +
We also bring out MIPI CSI-2 & DSI interfaces to a 1.27 mm pinstrip.
 +
 
 +
=BootRom=
 +
 
 +
The boards do not include NAND or NOR storage - everything is on the SD card, which has a FAT32 partition with GPU firmware and a kernel image, and an EXT2 partition with the rootfs.
 +
 
 +
We're not currently using a bootloader - we actually boot via the GPU, which contains a proprietary RISC core (wacky architecture ;) . The GPU mounts the SD card, loads GPU firmware and brings up display/video/3d, loads a kernel image, resets the SD card host and starts the ARM.
 +
 
 +
You could replace the kernel image with a bootloader image, and that would work fine.
 +
 
 +
 
 +
=Code=
 +
 
 +
Code and binaries for Raspberry Pi will be available at various places from launch.
 +
 
 +
==Binaries==
 +
 
 +
==Source==
 +
 
 +
=Compiler=
 +
 
 +
The Broadcom processor on Raspberry Pi contains an ARM v6 general purpose processor and a GPU of currently unknown origin.  No data is currently available on other cores (if any) available in the BCMxxxx.
 +
 
 +
==ARM==
 +
 
 +
There is broad compiler support including gcc - please see [http://www.elinux.org/ARMCompilers ARM Compilers]
 +
 
 +
==GPU==
 +
The GPU provides APIs for Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode.
 +
 
 +
The GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24 GFLOPs of general purpose compute and features a bunch of texture filtering and DMA infrastructure - the Raspberry Pi team are looking at how they can make this available to application programmers.
 +
 
 +
==DSP==
 +
 
 +
There is a DSP, but there isn't currently a public API (Liz thinks the BC team are keen to make one available at some point).
 +
 
 +
=Development environments=
 +
 
 +
Instead of just using compiler + editor, you can use complete image create "development tool chains" which integrate compiler, build system, packaging tools etc. in one tool chain.
 +
 
 +
==Ubuntu==
 +
 
 +
Ubuntu is currently listed as the default distribution on the Raspberry Pi website.
 +
 
 +
Eben says (regarding default distribution): "Either Ubuntu or Fedora; the main point in Fedora’s favour is their ongoing support for ARMv6 architectures."
 +
 
 +
[https://wiki.ubuntu.com/ARM https://wiki.ubuntu.com/ARM]
 +
 
 +
==Fedora==
 +
 
 +
Eben says (regarding default distribution): "Either Ubuntu or Fedora; the main point in Fedora’s favour is their ongoing support for ARMv6 architectures."
 +
 
 +
[http://fedoraproject.org/wiki/Architectures/ARM http://fedoraproject.org/wiki/Architectures/ARM]
 +
 
 +
==Meego & XBMC==
 +
The MeeGo project provides a Linux-based, open source software platform for the next generation of computing devices. The MeeGo software platform is designed to give developers the broadest range of device segments to target for their applications, including netbooks, handheld computing and communications devices, in-vehicle infotainment devices, smart TVs, tablets and more – all using a uniform set of APIs based on Qt.  XBMC is an award-winning free and open source (GPL) software media player and entertainment hub for digital media.  Meego TV 1.2 uses XBMC as a reference GUI (that is, a starting point for creating a custom GUI).
 +
 
 +
[http://www.madeo.co.uk/?p=783 http://www.madeo.co.uk/?p=783]
 +
[http://www.madeo.co.uk/?page_id=605 http://www.madeo.co.uk/?page_id=605]
 +
 
 +
==Android==
 +
 
 +
[http://www.arm.com/community/software-enablement/google/solution-center-android/index.php http://www.arm.com/community/software-enablement/google/solution-center-android/index.php]
 +
 
 +
'''EMBINUX'''
 +
 
 +
==Debian ARM==
 +
 
 +
[http://www.debian.org/ports/arm/ http://www.debian.org/ports/arm/]
 +
 
 +
==RISC OS==
 +
 
 +
RISC OS is a fast and lightweight computer operating system designed in Cambridge, England by [http://en.wikipedia.org/wiki/Acorn_Computers Acorn]. First released in 1987, its origins can be traced back to the original team that developed the ARM microprocessor.  RISC OS includes [http://en.wikipedia.org/wiki/BBC_BASIC BBC BASIC] which was primarily conceived to teach programming skills as part of the BBC computer literacy project.
 +
 
 +
[https://www.riscosopen.org/content/ https://www.riscosopen.org/content/]
 +
 
 +
==GeeXboX ARM==
 +
GeeXboX is a free and Open Source Media-Center purposed Linux distribution for embedded devices and desktop computers. GeeXboX is not an application, it’s a full-featured OS, that one can boot as a LiveCD, from a USB key, an SD/MMC card or install on its regular HDD. The GeeXboX distribution is lightweight and designed for one single goal: embed all major multimedia applications as to turn your computer into an HTPC.
 +
 
 +
[http://www.geexbox.org/category/arm/ http://www.geexbox.org/category/arm/]
 +
 
 +
==Scratchbox==
 +
Scratchbox is a cross-compilation toolkit designed to make embedded Linux application development easier. It also provides a full set of tools to integrate and cross-compile an entire Linux distribution. To find out what it can do, take a look at some of the [http://www.scratchbox.org/documentation/ documentation].
 +
 
 +
[http://www.scratchbox.org/ http://www.scratchbox.org/]
 +
 
 +
==OpenEmbedded==
 +
 
 +
==Eclipse==
 +
 
 +
==Mamona==
 +
 
 +
=Other software=
 +
 
 +
==Flash==
 +
 
 +
From Eben:
 +
"We'll have to take a look. We support hardware-accelerated OpenVG, and have had Flash Lite running incredibly fast. Personally, I'd like to get the official hardware-accelerated Flash 10 going on there, running against OpenGL ES 2.0, but that's something to think about after the launch."
 +
 
 +
=Software hints=
 +
 
 +
This section collects hints, tips & tricks for various software components.
 +
 
 +
=Graphics accelerator=
 +
 
 +
=FAQ=
 +
 
 +
* For Raspberry Pi frequently asked questions (FAQ) see [http://www.raspberrypi.org/?page_id=8 FAQ].
 +
* Raspberry Pi Forum FAQ: [http://www.raspberrypi.org/?page_id=43&mingleforumaction=viewtopic&t=67 Forum FAQ]
 +
 
 +
=News articles and blog posts about Raspberry Pi=
 +
 
 +
==Articles==
 +
 
 +
* [http://hardware.slashdot.org/story/11/07/29/1523225/Raspberry-Pi-25-PC-Goes-Into-Alpha-Production Slashdot: Raspberry Pi $25 PC Goes Into Alpha Production] (29 July 2011)
 +
* [http://www.geek.com/articles/chips/raspberry-pi-25-pc-goes-into-alpha-production-20110728/ Geek.com: Raspberry Pi $25 PC goes into alpha production] (28 July 2011)
 +
* [http://www.csmonitor.com/Innovation/Responsible-Tech/2011/0712/Raspberry-Pi-Rise-of-the-25-computer Christian Science Monitor: Raspberry Pi: Rise of the $25 computer] - David talks to the Christian Science Monitor about the educational implications of the project. (12 July 2011)
 +
* [http://armdevices.net/2011/05/06/25-arm-powered-desktop-presented-by-raspberry-pi-foundation/ ARMDevices.net: $25 ARM Powered Desktop presented by Raspberry Pi Foundation]
 +
* [http://www.huffingtonpost.co.uk/2011/07/28/why-doesnt-the-uk-have-it_n_911915.html HuffPost UK: Why Doesn't The UK Have Its Own Apple Inc?] - article on the state of the UK computer industry, which interviews Eben and includes some uplifting material on Raspi. (28 July 2011)
 +
* [http://blogs.computerworlduk.com/open-enterprise/2011/05/as-british-as-raspberry-pi/index.htm Computer World UK: As British as Raspberry Pi?]
 +
* http://www.next-gen.biz/features/david-braben-raspberry-pi - David talks pi and computer education in the UK. (Aug 3 2011)
 +
* http://journaltec.com/2011/08/04/raspberry-pi-interview-with-eben-upton.html - Email interview with Eben. (Aug 4 2011)
 +
* http://www.greentablet.info/gadget-25-raspberry-minicomputer-now-in-alpha-production-stage.html - Another short news piece about the board going alpha. (30 July 2011)
 +
* http://orvtech.com/general/raspberry-pi-servidor-casero-alpha/ - Piece in Spanish about the project and the board going alpha. Note shiny US quarter photoshopped over the official 20p piece photo! (30 July 2011)
 +
* http://www.exanders.fr/raspberry-pi-lordinateur-a-17-euros-en-bonne-voie-de-concretisation/ - French article on the how far we've come on the project. (1 Aug 2011)
 +
* http://www.pvsm.ru/article/63919 - Russian article about the Raspi. I am charmed to discover that Google Translate says the English for the Russian version of Braben is Brabo. I think we should adopt Brabo as David's superhero name. (31 July 2011)
 +
* http://www.linuxjournal.com/content/raspberry-pi-tiny-computer-runs-linux - Linux Journal is, perhaps not surprisingly, very pleased that the Raspi will be running Linux. (31 May 2011)
 +
* http://www.techeye.net/hardware/15-usb-pc-creator-david-braben-in-talks-with-government - TechEye talks to David (who talks a bit about his impressions of ICT teaching in the UK as well as about the device). (6 May 2011)
 +
* http://www.electronicsweekly.com/Articles/2011/05/26/51140/in-depth-raspberry-pi-the-computer-on-a-stick.htm - EW interviews Eben. (26 May 2011)
 +
* http://www.theinquirer.net/inquirer/news/2068735/uk-developer-creates-gbp15-kids - The Inquirer chats to David. (6 May 2011)
 +
* http://micromath.wordpress.com/2011/06/04/digital-illiteracy-and-raspberry-pi/ - Mathematics under the Microscope, a great maths teaching blog, on Raspi. There's an interesting follow-up post too - and if you have an interest in education, especially in the sciences, the whole blog is well worth your time. (4 June 2011)
 +
* http://amplecan.com/archives/762 - Blog post from TheSynapseUK, who posts on the Raspberry Pi boards. This is particularly good on some of the stumbling blocks we have to overcome in schools beyond the curriculum, like all those ICT teachers who don't have any programming experience. (2 Aug 2011)
 +
* http://www.cabume.co.uk/hardware/cambridges-fifteen-quid-computer-set-for-q4-launch.html - Cambridge Business Media is chuffed that, among other things, we're based in Cambridge. (3 Aug 2011)
 +
 
 +
==Video==
 +
* [http://news.bbc.co.uk/1/hi/programmes/click_online/9504208.stm BBC iClick's Peter Price asks whether a £15 computer can solve the programming gap] (6 minutes, 3 June 2011)
 +
* [http://www.youtube.com/watch?v=pQ7N4rycsy4 Raspberry Pi's David Braben talks to BBC's Rory Cellan-Jones] (2:28 minutes, 5 May 2011)
 +
 
 +
==Audio==
 +
* [http://foundationlibraries.blogspot.com/2011/06/cfl-podcast-eben-upton-raspberry-pi.html Podcast of a phone interview with Eben about the project and the motivations behind it] (15 minutes long.) (3 June 2011) Transcription [http://tomhannen.posterous.com/raspberry-pi-podcast-transcript here].
 +
 
 +
==Photos==
 +
* [http://www.raspberrypi.org/?page_id=11 Press photos]
 +
* [http://www.raspberrypi.org/wp-content/uploads/2011/07/raspberry1.png PCB layout]
 +
 
 +
==Raspberry Pi wiki pages==
 +
 
 +
=Links=
 +
==Home page==
 +
[http://www.raspberrypi.org raspberrypi.org] (RaspberryPi home)
 +
* Using [http://www.google.com/ Google] you can search raspberrypi.org (including [http://www.raspberrypi.org/?page_id=43 Forum]) using ''site:raspberrypi.org <search term>''.  The home page and forum each have their own search facilitiy also.
 +
 
 +
==Manuals and resources==
 +
 
 +
==Contact and communication==
 +
* [http://www.raspberrypi.org/ Home page and blog]
 +
* [http://www.raspberrypi.org/?page_id=8 FAQ]
 +
* [http://www.raspberrypi.org/?page_id=2 Contact Raspberry Pi Foundation (info and press inquiries)]
 +
* [http://twitter.com/intent/user?screen_name=Raspberry_Pi Twitter]
 +
 
 +
==Books==
 +
 
 +
==Education & Training materials==
 +
* [http://en.wikipedia.org/wiki/Hackety_Hack Hackety Hack]
 +
* [http://en.opensuse.org/openSUSE:Education-Li-f-e OpenSUSE Linux for Education (LiFE)]
 +
* http://projectguts.org/
 +
 
 +
==Programming==
 +
 
 +
Raspberry Pi plans to support Python and C as primary teaching languages, but expect to have some sort of BASIC on there too. Perhaps even BBC BASIC or SuperBASIC depending on copyright issues.
 +
 
 +
===Programming languages, IDEs, etc===
 +
* Eclipse
 +
* Lazarus
 +
* (maybe) BoaConstructor
 +
* Anjuta for C/C++
 +
* Dev-C++
 +
* CodeBlocks
 +
* [http://www.lua.org/ Lua]
 +
* [http://www.bbcbasic.co.uk/bbcbasic.html BBC BASIC]
 +
** [http://mdfs.net/Software/BBCBasic/ mdfs.net]
 +
** [http://www.riscosopen.org/wiki/documentation/show/*BASIC ROOL wiki], forum threads: [http://www.riscosopen.org/forum/forums/1/topics/693 1], [http://www.riscosopen.org/forum/forums/3/topics/183 2], [http://www.riscosopen.org/forum/forums/5/topics/129 3], [http://www.riscosopen.org/forum/forums/2/topics/71 4], [http://www.riscosopen.org/forum/forums/2/topics/71 5]
 +
* [http://smallbasic.com/ Small Basic]
 +
* [http://www.squeak.org/ Squeek implementation of Smalltalk]
 +
* [http://processing.org/ Processing]
 +
 
 +
===Graphical Programming===
 +
* [http://gambas.sourceforge.net/ Gambas] - possibly a good choice; easy like old visual basic
 +
* [http://scratch.mit.edu/ Scratch]
 +
* [http://www.alice.org/ Alice]
 +
* [http://appinventor.googlelabs.com/ Android App Inventor]
 +
* [http://fuse.microsoft.com/projects-kodu.html Kodu]
 +
* [http://education.mit.edu/starlogo/ Star Logo]
 +
 
 +
===Robotics===
 +
* [http://mindstorms.lego.com/en-us/Default.aspx Lego Mindstorms]
 +
 
 +
===Uncategorised===
 +
* [http://wiki.sugarlabs.org/go/What_is_Sugar%3F Sugar Learning Platform: An alternative to the Desktop metaphor of the GUI]
 +
* [http://futureboy.us/frinkdocs/ Frink]
 +
* [http://www.geometricalgebra.net/gaviewer_download.html GAViewer]
 +
* [http://www.geogebra.org/cms/ GeoGebra]
 +
 
 +
See also [[:Category:Education]]
 +
 
 +
==Past events==
 +
 
 +
==Manufacturing==
 +
 
 +
==Compliancy==
 +
Products are RoHS and CE compliant.  Please contact Raspberry Pi for details regarding WEEE in your country.
 +
 
 +
==Shipping==
 +
 
 +
Raspberry Pi will ship worldwide to the best of their ability (ie subject to UK export and local import laws). China should be
 +
 
 +
Raspberry Pi devices will ship from the UK and Raspberry Pi will be looking to sign up distribution partners in due course.
 +
 
 +
=Subpages=
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<splist
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parent=
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showparent=no
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sort=desc
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sortby=title
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liststyle=ordered
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showpath=no
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kidsonly=no
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debug=0
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/>
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 +
=Thanks=
 +
*  The layout for this page is based on the excellent [[BeagleBoard]] page on this site.
 +
*  Some of the text on this page has been adapted from contributions made by the contributors to the [[BeagleBoard]] page on this site.
 +
 
 +
=Foreign Language Translations=
 +
 
 +
* [[de:test]]
 +
* [[es:RaspberryPiBoardEsTest]]

Revision as of 10:15, 7 August 2011


This page collects information about Raspberry Pi Foundation's ultra-low-cost (~15UKP or 25USD) Linux computer for teaching computer programming to children.

The Raspberry Pi Foundation is a UK registered charity (Registration Number 1129409) which exists to promote the study of computer science and related topics, especially at school level, and to put the fun back into learning computing. We expect this computer to have many other applications both in the developed and the developing world.

Please note that the Raspberry Pi isn't released yet - this page is a community work in progress in preperation for the launch

NEWS:


Events

The following are general-interest industry events and are not an indication that Raspberry Pi will be attending, exhibiting or speaking at the event. For Raspberry Pi event and speaker schedule, please contact press@raspberrypi.org.


Provisional specification

The first product is about the size of a credit card, and is designed to plug into a TV or be combined with a touch screen for a low cost tablet. The expected price is $25 for a fully-configured system.

  • 700MHz Broadcom media processor featuring an ARM11 (ARM1176JZF-S) core, Broadcom GPU core, DSP core and support for Package-on-Package (PoP) RAM
  • 128MiB (Model A) or 256MiB of SDRAM (Model B), stacked on top of the CPU as a PoP device
  • OpenGL ES 2.0
  • 1080p30 H.264 high-profile decode
  • Composite and HDMI video output
  • One USB 2.0 port provided by the BCMxxxx
  • SD/MMC/SDIO memory card slot
  • General-purpose I/O (About 16 3v3) and various other interfaces, brought out to 1.27mm pin-strip
  • Optional integrated 2-port USB hub and 10/100 Ethernet controller (Model B)
  • Open software (Ubuntu, Iceweasel, KOffice, Python)
  • Capability to support various expansion boards

Availability

Estimated availability (as of 1st August 2011) is end of November 2011.

Case

A protective case is an often-cited required accessory. Cases are likely to be offered both directly from Raspberry Pi and from 3rd party companies such as Special Computing.

Power Adapters

Provisional information is that the boards will feature a Coax-style DC Jack connector accepting 6-20v (or possibly 5-16v)

Expansion boards

It is likely that expansion boards will be offered both by Raspberry Pi Foundation and by 3rd parties.

Beginners guide

You just got your new Raspberry Pi device, and now? See beginners guides.

Hardware

The first product is about the size of a credit card, and is designed to plug into a TV or be combined with a touch screen accessory for a low cost tablet. The product will be available in two configurations: Model A and Model B. The expected price is $25 for a fully-configured Model-A system and around $35 for a Model B.

Components

(PCB IDs are those of the Model B Alpha board)

Based on a new Broadcom media processor (Raspberry Pi are currently redacting the chip model number in comments on their forum).

  • SoC: Broadcom BCMxxxx media procesor system-on-chip featuring:
    • CPU core: ARM1176JZF-S ARM11 core clocked at 700MHz; ARM VFP.
    • GPU core: an unnamed Broadcom proprietary GPU providing Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode. There are 24 GFLOPS of general purpose compute and a bunch of texture filtering and DMA infrastructure. Eben worked on the architecture team for this and the Raspberry Pi team are looking at how they can make some of the proprietary features available to application programmers
    • DSP core: There is a DSP, but there isn't currently a public API (Liz thinks the BC team are keen to make one available at some point)
    • RAM: 128MiB (Model A) or 256MiB (Model B) of SDRAM. The RAM is physically stacked on top of the Broadcom media processor (package-on-package technology)
  • Either 1x USB 2.0 (Model A) or LAN9512 (Data Brief | Data Sheet) providing 10/100Mb Ethernet and 2x USB 2.0 (J10: Model B)
  • 1.27mm header providing ~16 GPIOs at 3v3, I2C and SPI interfaces
  • 1.27mm header providing MIPI CSI-2 & DSI interfaces
  • J1: DC Jack (6-20v input provisionally)
  • HDMI connector providing HDMI 1.3a out
  • SD/MMC/SDIO memory card slot
  • J5: JTAG (ARM11)
  • J6: Audio connector: 3.5mm stereo jack
  • J7: Composite Video connector: RCA


  • Board size: Credit-card or smaller.
  • Weight: <40g?
  • Currently 6 layer PCB; target: 4 layer

Manual

Documentation will presumably be available when the product is release (current target ~November 2011)

Schematic / Layout

Errata

Clocking

  • Provisional main CPU clock speed is 700MHz
  • No data currently released on the GPU or other component clock speeds

Power management

  • Target power consumption is <1W

DLP Pico projector

The boards have both Composite and HDMI outputs so should interface with a range of DLP Pico projectors on the market.

Interfacing to Raw LCD Panels

No data currently available.

If the touchscreen interface talks via USB, they choose Linux as an OS, and there's Linux support for the touchscreen, the answer would be "yes".

General Purpose Input/Output (GPIO), I2C, SPI

There are approximately 16 spare GPIOs, which are brought out to 1.27mm pin-strip. Voltage levels are 3v3. The connector choice is deliberately annoying to connect to directly; there is no over-voltage protection on the board so the intention is that people interested in serious interfacing will use an external board with buffers, level conversion and analog I/O rather than soldering directly onto the main board.

We also bring 2x I2C (3v3) and an SPI (3v3) interface out to the same connector.

MIPI CSI-2 & DSI

We also bring out MIPI CSI-2 & DSI interfaces to a 1.27 mm pinstrip.

BootRom

The boards do not include NAND or NOR storage - everything is on the SD card, which has a FAT32 partition with GPU firmware and a kernel image, and an EXT2 partition with the rootfs.

We're not currently using a bootloader - we actually boot via the GPU, which contains a proprietary RISC core (wacky architecture ;) . The GPU mounts the SD card, loads GPU firmware and brings up display/video/3d, loads a kernel image, resets the SD card host and starts the ARM.

You could replace the kernel image with a bootloader image, and that would work fine.


Code

Code and binaries for Raspberry Pi will be available at various places from launch.

Binaries

Source

Compiler

The Broadcom processor on Raspberry Pi contains an ARM v6 general purpose processor and a GPU of currently unknown origin. No data is currently available on other cores (if any) available in the BCMxxxx.

ARM

There is broad compiler support including gcc - please see ARM Compilers

GPU

The GPU provides APIs for Open GL ES 2.0, hardware-accelerated OpenVG, and 1080p30 H.264 high-profile decode.

The GPU is capable of 1Gpixel/s, 1.5Gtexel/s or 24 GFLOPs of general purpose compute and features a bunch of texture filtering and DMA infrastructure - the Raspberry Pi team are looking at how they can make this available to application programmers.

DSP

There is a DSP, but there isn't currently a public API (Liz thinks the BC team are keen to make one available at some point).

Development environments

Instead of just using compiler + editor, you can use complete image create "development tool chains" which integrate compiler, build system, packaging tools etc. in one tool chain.

Ubuntu

Ubuntu is currently listed as the default distribution on the Raspberry Pi website.

Eben says (regarding default distribution): "Either Ubuntu or Fedora; the main point in Fedora’s favour is their ongoing support for ARMv6 architectures."

https://wiki.ubuntu.com/ARM

Fedora

Eben says (regarding default distribution): "Either Ubuntu or Fedora; the main point in Fedora’s favour is their ongoing support for ARMv6 architectures."

http://fedoraproject.org/wiki/Architectures/ARM

Meego & XBMC

The MeeGo project provides a Linux-based, open source software platform for the next generation of computing devices. The MeeGo software platform is designed to give developers the broadest range of device segments to target for their applications, including netbooks, handheld computing and communications devices, in-vehicle infotainment devices, smart TVs, tablets and more – all using a uniform set of APIs based on Qt. XBMC is an award-winning free and open source (GPL) software media player and entertainment hub for digital media. Meego TV 1.2 uses XBMC as a reference GUI (that is, a starting point for creating a custom GUI).

http://www.madeo.co.uk/?p=783 http://www.madeo.co.uk/?page_id=605

Android

http://www.arm.com/community/software-enablement/google/solution-center-android/index.php

EMBINUX

Debian ARM

http://www.debian.org/ports/arm/

RISC OS

RISC OS is a fast and lightweight computer operating system designed in Cambridge, England by Acorn. First released in 1987, its origins can be traced back to the original team that developed the ARM microprocessor. RISC OS includes BBC BASIC which was primarily conceived to teach programming skills as part of the BBC computer literacy project.

https://www.riscosopen.org/content/

GeeXboX ARM

GeeXboX is a free and Open Source Media-Center purposed Linux distribution for embedded devices and desktop computers. GeeXboX is not an application, it’s a full-featured OS, that one can boot as a LiveCD, from a USB key, an SD/MMC card or install on its regular HDD. The GeeXboX distribution is lightweight and designed for one single goal: embed all major multimedia applications as to turn your computer into an HTPC.

http://www.geexbox.org/category/arm/

Scratchbox

Scratchbox is a cross-compilation toolkit designed to make embedded Linux application development easier. It also provides a full set of tools to integrate and cross-compile an entire Linux distribution. To find out what it can do, take a look at some of the documentation.

http://www.scratchbox.org/

OpenEmbedded

Eclipse

Mamona

Other software

Flash

From Eben: "We'll have to take a look. We support hardware-accelerated OpenVG, and have had Flash Lite running incredibly fast. Personally, I'd like to get the official hardware-accelerated Flash 10 going on there, running against OpenGL ES 2.0, but that's something to think about after the launch."

Software hints

This section collects hints, tips & tricks for various software components.

Graphics accelerator

FAQ

  • For Raspberry Pi frequently asked questions (FAQ) see FAQ.
  • Raspberry Pi Forum FAQ: Forum FAQ

News articles and blog posts about Raspberry Pi

Articles

Video

Audio

Photos

Raspberry Pi wiki pages

Links

Home page

raspberrypi.org (RaspberryPi home)

  • Using Google you can search raspberrypi.org (including Forum) using site:raspberrypi.org <search term>. The home page and forum each have their own search facilitiy also.

Manuals and resources

Contact and communication

Books

Education & Training materials

Programming

Raspberry Pi plans to support Python and C as primary teaching languages, but expect to have some sort of BASIC on there too. Perhaps even BBC BASIC or SuperBASIC depending on copyright issues.

Programming languages, IDEs, etc

Graphical Programming

Robotics

Uncategorised

See also Category:Education

Past events

Manufacturing

Compliancy

Products are RoHS and CE compliant. Please contact Raspberry Pi for details regarding WEEE in your country.

Shipping

Raspberry Pi will ship worldwide to the best of their ability (ie subject to UK export and local import laws). China should be

Raspberry Pi devices will ship from the UK and Raspberry Pi will be looking to sign up distribution partners in due course.

Subpages

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Thanks

  • The layout for this page is based on the excellent BeagleBoard page on this site.
  • Some of the text on this page has been adapted from contributions made by the contributors to the BeagleBoard page on this site.

Foreign Language Translations