cool, looks like you guys have kicked off the mobilepro900c distro in this thread
I've just bought one of these on ebay, I've charged it up, confirmed the hardware works and openned it up for a look inside - I can't wait to put linux on this machine so count me in as a dev ... anyone feel like setting up a wiki page and mailing list on handhelds.org ??
re JTAG I noticed two 12 pin headers on the back of the motherboard, one labelled PIC CN18
(interface to program the pic chip?
) - would be cool if the other one is JTAG. cmonex if you've desoldered the CPU from a board you could check with a multimeter if any of the header pins connect to the CPU JTAG pads
from the PXA255 design guide from Intel:
H11 is nTRST - jtag reset
H12 TCK - jtag clock
H13 TMS - jtag mode select
H15 TDI - data input
H16 TDO - data output
some more hardware info
- 2 big 144pin chips are neomagic NMC1110 PC-card/CF interface
- audio is Wolfson Microelectronics WM8731
- USB uses Philips ISP1161A1
- my guess is the PIC chip is decoding the keyboard
- Texas Instruments MAX3243 provides RS232 level serial port
- the Epson SID13806 LCD interface is documented by Epson though discontinued product
- the two LCX32245 are buffers
(Fairchild 74LCX32245
) and should be transparent I hope
I've started downloading datasheets and suggest others do the same - no idea yet what is already supported in the kernel and what we have to hack ourselves ...
I don't have the serial cable so I'm looking at tapping into the IR rx/tx signals for a possible serial console - then I can try booting a kernel with Haret and get some feedback.
And I agree uboot would be a great bootloader flashed into ROM and my personal preference.
This project needs a name and logo and stuff like that too
cheers all cosmo0