Difference between revisions of "Didj"
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* [http://www.cozybit.com/stories.htm Cozybit boasts of their involvment in integrating Linux with the Didj] | * [http://www.cozybit.com/stories.htm Cozybit boasts of their involvment in integrating Linux with the Didj] | ||
* the #edev guys located [http://www.leapfrog.com/etc/medialib/leapfrog/legal.Par.14642.File.dat/Additional%20Third%20Party%20Notices%20for%20LF%20Connect%20Application%20.pdf THIS] on the leapfrog site | * the #edev guys located [http://www.leapfrog.com/etc/medialib/leapfrog/legal.Par.14642.File.dat/Additional%20Third%20Party%20Notices%20for%20LF%20Connect%20Application%20.pdf THIS] on the leapfrog site | ||
− | + | * links are dead | |
− | + | * busybox isn't listed | |
Revision as of 19:39, 5 September 2008
Discussion
- #edev on irc.freenode.net
- didj homebrew forum
- How to extract files from the firmware .exe
- Initial Memory Map Dump
- Cozybit boasts of their involvment in integrating Linux with the Didj
- the #edev guys located THIS on the leapfrog site
* links are dead * busybox isn't listed
Chip List
processor info
- 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
after some careful research and elimination, it appears that the processor might be a variation of the STn8811 or STn8815 from ST which now is a part of NXP. the bga packaging and layout of the pins appear to be very very similiar. in addition, the STn8811 and STn8815 are the only commercially announced ARM926EJ-S that operates ate 393MHz.
1 Micron MT29F2G08AAC - 256megabyte nand flash 8-bit datasheet
1 Cirrus Logic CS43L22 - audio codec datasheet
1 QImonda HYB25DC25616OCE-5 - 32megabyte sdram datasheet
1 Giantplus GPM758A0 - 320x240 tft website
1 Intersil ISL7665SACBAZ - Programmable Over/Under Voltage Detector datasheet
3 TI TPS62050 - Adjustable Step-Down Converter datasheet