PalmTX JTAG program
Submitted by tristar001 on 30 December, 2009 - 07:02.
Hello all.
I used nurom edit my TX rom,if seems finished ok from it's log.after I put the back reset button,it turn to reset loop.
I find it's JTAG port on the site
http://marex.hackndev.com/handheld-hardware/
Any body success to program the TX Flash chip?Or advice?
open it ,I find the flash is 8M NorFlash,it should be program by system jtag port,and 128M NandFlash should be overflow and RAM.
what's "nurom" ... yet
what's "nurom" ... yet another Grinberg's Palm-destruction-utility? If so, well, poor you.
Anyway, to reflash that thing, solder some JTAG adapter (you'll probably prefer parport wiggler one), get urjtag, compile it and run it.
Into the prompt type something like...
cable WIGGLER ppdev /dev/parport0
detect
detectflash 0
eraseflash 0 4
flashmem 0 file.bin
... refer to the documentation (or command "help") for the exact names, I don't recall them anymore properly. But the sequence will be very close to that.
Thanks very much! Nurom is a
Thanks very much!
Nurom is a edit TX flash program on palmos.
Because TX no bootloader,so if anyone to reflash the norflash nor nandflash(they called it overflow in NVFS system) maybe cause reset loop.
First I make a 4 pin wiggler cable(only TDI,TCK,TDO,TMS)，but my software could't find the target board.recently ,I guess may be the PXA270 need nRERET and nTRST signal,so I change it.But it seems not work.I need time to solve the problem(hardware or software).
I want to know,anyone have edit the nandflash by jtag,or have some methods to reprogram it?Thanks.