Didj
Contents
Project Goals
Here is a place to list all the the goals or wants we have for this project.
- Port Gp2x Libraries
- Flash Player
- Emulation
- NES
- SNES
- Gameboy BW/Color/Advanced
- Gamegear
- MAME
- Others
Tutorials/How To's
Technical Information
- Home Brew Cartridge
- Initial Memory Map Dump
- the #edev guys (#edev on irc.freenode.net) located THIS on the leapfrog site
- Didj Linux and root filesystem source is here
- busybox isn't listed
- linux kernel source is now available from LeapFrog
- Access to the Didj as a ThumbDriver From Windows
Discussion/Links
- Diji Project Forum
- Cozybit boasts of their involvment in integrating Linux with the Didj
- Hacking around with the Leapfrog Didj
- Hackaday Posts
- didj homebrew forum
Graphics Hardware
- Resolution: 320x240
- Display Modes: RGBA 565
- MLC: Multi-layer controller provides HW compositing for up to three graphics layers
- One 24-bit 2D layers (no HW accel)
- One 16-bit 3D layer
- One YUV video layer (no HW accel)
- Graphics API OpenGL ES 1.1: A reduced instruction set version of OpenGL for embedded systems. OpenGL is a 3D graphics programming interface. Proprietary interface to Multi- Layer Display controller for 2D RGB and YUV video buffer support. FreeType Font renderer. Theora video codec plays OGG-Theora files.
Chip List
Processor
- OEM branded version of the MagicEyes Pollux VF3520F (datasheet available)
- Appears to be the 393MHz version of the same processor in the GP2x Wiz
- BGA package
- 288 pins
- .65mm pitch
- 15x15mm
- has onboard usb device
- 12mhz xtal
- 27mhz xtal (suspect it is for the audio interface)
- unknown barrel xtal(suspect it is rtc)
- ARM926EJ-S
- possible JTAG on pads
* TP8 - Vcc * TP9 * TP10 * TP11 * TP12 * TP13 * TP14 - Vss
- marked with "LF-1000"
- marked with "ARM"
- marked with "N12N1D"
- marked with "H0815"
- onboard tft controller
- onboard i2s or ac97 interface
- 393MHz
Memory
- 1 QImonda HYB25DC25616OCE-5 - 32megabyte sdram datasheet
- 1 Micron MT29F2G08AAC - 256megabyte nand flash 8-bit datasheet
Audio
- 1 Cirrus Logic CS43L22 - audio codec datasheet
Display Driver
- 1 Giantplus GPM758A0 - 320x240 TFT Pinouts and Specifications
Power
- 1 Intersil ISL7665SACBAZ - Programmable Over/Under Voltage Detector datasheet
- 3 TI TPS62050 - Adjustable Step-Down Converter datasheet
Cartridges
Original Cartridge
Manufactured by Sandisk
s740878-1 4620329 0621 151-10043-07-a