1. Beagleboard and Friends Nathan Gough

2. Hardware – OMAP3  Based around Texas Instruments OMAP3530 “Applications Processor”  OMAP3 Platform:  Arm Cortex-A8  600MHz, superscalar.  NEON multimedia instruction set  Paired with a C64x+ DSP core  VLIW core. 6 ALUs, single 32 bit arithmetic per clock cycle  Two multipliers supporting 4 16x16 bit multiply per instruction cycle

3. Hardware – OMAP3  POWERVR SGX Graphics Accelerator  10M Polygon/sec Tile based processor  Multithreaded shader engine: Pixel and vertex  Supports OpenGLES 1.1 and 2.0, OpenVG1.0

4. Beagleboard – Rev. C

5. Hardware - Beagleboard  OMAP3530 forms the core of the board.  Uses Package on Package stacking of memory on top of OMAP  Memory:  256MB NAND, 256MB DDR SDRAM  Interfaces:  DVI-D (via HDMI connector), JTAG, RS232, USB2 OTG  Stereo In, Stereo Out, S-Video, USB2 Host  Expansion Header: I2C, I2S, SPI, MMC/SD  Can be USB bus powered or take DC power

6. Using the Beagleboard  Booting:  NAND -> USB-> UART -> MMC  Or USB -> UART -> MMC -> NAND (changed by pushing USER button on board)  Uses U-Boot (Universal Bootloader)  Provides a simple CLI to manipulate hardware prior to booting a kernel  MMC/SD is the only way to bring up a new board.  Also used to recover from bad NAND writes  Boot output appears on UART3

7. Beagleboard - Software  Distributions you can use:  Angstrom (what I’ve used)  Ubuntu  Android (Google’s open source software stack for mobile devices)  + about a million other embedded linux distros.  Applications:  Ffmpeg (compiled with NEON optimisations)  Omapfbplay (uses OMAP framebuffer; can do 720p decoding)  Anything you can build…

8. Developing for Beagleboard  Openembedded (OE):  Provides an easy to use build environment  Collection of metadata about software packages  Uses bitbake “recipes” to build software  Collections of recipes form images eg “x11-image, console- image”  Other options:  Use the Android SDK  Build your own toolchain  Start from a ready made image

9. Links  www.beagleboard.org www.beagleboard.org  Elinux.org/beagleboard (user wiki <- best source of information)  http://www.angstrom-distribution.org/ http://www.angstrom-distribution.org/  http://wiki.openembedded.net/index.php/Main_Page http://wiki.openembedded.net/index.php/Main_Page  http://focus.ti.com/docs/prod/folders/print/omap3530.html http://focus.ti.com/docs/prod/folders/print/omap3530.html