Hi all,
I am new in embedded/JTAG/OpenOCD world and I need some help:
I bought a “Devel board” (yoggie open soho: pxa270, 4 MB nor flash, 128 MB nand, serial console, JTAG, Linux) and I would like to change the software on it.
It uses the UBOOT bootloader but they use 0 sec delay for the booting so I can’t stop the booting procedure to rewrite the flash or chosse another kernel from the bootloader. So, if I make an unbootable kernel/device → I can’t use it anymore.
So I would like to backup the flashes (both nor and nand).
I found the OpenOCD (and I have a wiggler2 JTAG debugger) and I know it, it can write flash memories but can I backup them?
Or can I change the 0 sec delay to 5 sec on the flash ram? (debug the booting procedure and if it read the delay variant I see value 0 on a memory segment and I change it to 5) Is it possible?
Regards and sorry if these questions are dummy,
Balázs Zachár