Difference between revisions of "RaspberryPiBoard"

From eLinux.org
Jump to: navigation, search
(Components)
(go direct to RPi Hub)
 
(353 intermediate revisions by 57 users not shown)
Line 1: Line 1:
[[Category: Linux]]
+
#REDIRECT [[RPi Hub]]
[[Category: OMAP]]
 
[[Category: Development Boards]]
 
[[Category: RaspberryPi]]
 
[[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/?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 ARM11 ([http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf ARM1176JZF-S]) core
 
*    128MB (Model A) or 256MB of SDRAM (Model B)
 
*    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, 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)
 
 
 
=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).
 
 
 
* CPU: Broadcom BCMxxxx featuring the [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: 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: 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: 128MB (Model A) or 256MB (Model B) of SDRAM
 
* Either 1x USB 2.0 (Model A) or LAN9512 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
 
* SD/MMC/SDIO memory card slot
 
* J5: JTAG
 
* J6: Audio connector
 
* J7: Composite Video connector
 
 
 
 
 
* 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==
 
 
 
* PCB mask: http://www.raspberrypi.org/wp-content/uploads/2011/07/raspberry1.png
 
* Prototype1 board: http://www.raspberrypi.org/wp-content/uploads/2011/07/pcb1.jpg
 
 
 
==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 connecotor 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 I2C and SPI 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 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].
 
 
 
=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]
 
 
 
==Articles==
 
(please use Google search or Google news for the moment)
 
 
 
* [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]
 
* [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]
 
* [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]
 
* [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?]
 
* [http://blogs.computerworlduk.com/open-enterprise/2011/05/as-british-as-raspberry-pi/index.htm Computer World UK: As British as Raspberry Pi?]
 
 
 
==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 languages, IDEs, etc==
 
* Eclipse
 
* Gambas
 
* Lazarus
 
* (maybe) BoaConstructor
 
* Anjuta for C/C++
 
* Dev-C++
 
* CodeBlocks
 
* [http://www.bbcbasic.co.uk/bbcbasic.html BBC BASIC] (See also http://mdfs.net/Software/BBCBasic/, https://www.riscosopen.org/content/)
 
* [http://smallbasic.com/ Small Basic]
 
* [http://www.squeak.org/ Squeek implementation of Smalltalk]
 
* [http://processing.org/ Processing]
 
 
 
==Graphical Programming==
 
* [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]
 
*  See also [[:Category:Education]]
 
 
 
==Past events==
 
 
 
==Raspberry Pi wiki pages==
 
 
 
==Raspberry Pi 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 videos==
 
* [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]
 
* [http://www.youtube.com/watch?v=pQ7N4rycsy4 Raspberry Pi's David Braben talks to BBC's Rory Cellan-Jones]
 
 
 
==Manufacturing==
 
 
 
=Subpages=
 
<splist
 
parent=
 
showparent=no
 
sort=desc
 
sortby=title
 
liststyle=ordered
 
showpath=no
 
kidsonly=no
 
debug=0
 
/>
 
 
 
=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.
 

Latest revision as of 19:34, 20 September 2012

Redirect to: