This page collects information about Raspberry Pi's $25 Linux computer for Education, based on a new Broadcom media processor (Raspberry Pi are currently redacting the chip model number in comments on their forum) and featuring an ARM1176JZF-S core.
- 1 Events
- 2 Hardware
- 3 Availability
- 4 Adapters
- 5 BootRom
- 6 Code
- 7 Compiler
- 8 Development environments
- 9 Software hints
- 10 Graphics accelerator
- 11 Beginners guide
- 12 FAQ
- 13 Links
- 14 Subpages
- 15 Thanks
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 (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)
- Board size: Credit-card or smaller.
- Weight: <37g
- Currently 6 layer PCB; target: 4 layer
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
- Provisional main CPU clock speed is 700MHz
- No data currently released on the GPU or other component clock speeds
- Target power consumption is <1W
DLP Pico projector
The boards have both Composite and HDMI outputs so should interface with a range od DLP Pico projectors on the market.
Interfacing to Raw LCD Panels
No data currently available.
Estimated availablility is End of November 2011.
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.
Provisional information is that the boards will feature a Coax-style DC Jack connector accepting 6-20v (or possibly 5-16v)
It is likely that expansion boards will be offered both by Raspberry Pi Foundation and by 3rd parties.
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 and binaries for Raspberry Pi will be available at various places from launch.
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.
There is broad compiler support including gcc - please see ARM Compilers
It is currently unknown if there is a DSP present.
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.
This section collects hints, tips & tricks for various software components.
You just got your new Raspberry Pi device, and now? See beginners guides.
For Raspberry Pi frequently asked questions (FAQ) see FAQ.
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
(please use Google search or Google news for the moment)
Raspberry Pi wiki pages
Raspberry Pi photos
Raspberry Pi videos
- BBC iClick's Peter Price asks whether a £15 computer can solve the programming gap
- Raspberry Pi's David Braben talks to BBC's Rory Cellan-Jones
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