Cmonex,
Thanks for the info:
Processor: xscale pxa255 + standard stuff
Need more detail
Keyboard: keyboard is hooked up to a non standard part
ROM chip: OS ROM intel strataflash
(28f128j3c150
)
See:
http://www.intel.com/design/flcomp/datashts/290667.htm
Listed as a 128Mb thats bit so this should be a 16 megabyte chip???
Doesnt make sense to me. How many are there? 1 or 2?
Userdisk: msystems DOC
Need more details
See:
http://www.m-systems.com
This is the "disk on chip" flash memory emulating a ide drive?
Video controller: epson epson s1d13806f00a1
(VGA out only?
)
Also used in the Pretec PocketPresenter CF VGA adapter
From Epson site: 13xxx Discontinued LCD Controllers » S1D13806 »
See:
http://www.erd.epson.com/index.php?option=com_docman&task=cat_view&...
My guess is this chip is used for both VGA out and the internal LCD, but no proof.
Unknown pic: pic16lf877
(friend said he hated programming this particular one
)
Need more detail. Probably have to follow traces to see where it goes.
Sound: c394 lcx3224
(audio? didnt look at that at all, sorry. i can next time
)
No clue, more details.
Google turned up nothing that seemed to relate.
LCD: lcd is physically compatible with nec 7xx .. dont know more..
A lot of research was done on this to try to convert it to a TFT. I cant remember where I found the threads but
Someone found the part numbers/data sheet and a possible TFT replacement. My theory is that if we get linux
running on it, we have to directly control the LCD controller anyway so reprogramming it to support the TFT
replacement should not be that hard. Where as attempting to rewrite the NEC WinCE LCD controller rountines,
making a new ROM and flashing it, is impossible for my little brain to even consider though cmonex has probably
already done this.
Can you take detailed photo's next time you open one up. Simple hand magnifier and digital camera will provide loads of detail/information.
Legal disclaimer: I am not encouraging breaking the law, the following idea might be illegal to pursue in your country.
Also, IN THEORY, is it possible for you to use that rom disassembly util to look at the WinCE ROM and find the keyboard, sound, and video driver locations?
(my copy of that dissasm tool was a demo and expired.
) Dissasembly of these would probably produce great info for writing the linux drivers.
Bill