On Sun, 1 Dec 2002, Andrew Kohlsmith wrote:
Now I imagine that these are tied to a MOSFET to +12V
which is run off of a
probably a good guess.
Another way I found it on one board was to try every combination of GPIOs
until the FLASH started working. Not fun, but pretty fast if you write a
I can always cut the traces and hard-wire to +12V but
I'd like to see if I
can't do this programmatically. I have a number of boards I want to use and
hardware hacking is something I'd like to avoid doing if possible.
get the flash burner for this board, run under a simulator of some sort,
and watch the IOs. Or put a PCI bus analyzer on the machine, run the flash
program, and watch the IOs. It's not going to be fun.
I still don't see how running under Bochs helps with the chipset but maybe
I missed something.
Now I know that every motherboard is different and
that there may be other
things locking me out, but generally speaking is there an "industry standard"
way of enabling/disabling BIOS reflash?
No, the goal is to make it hard for you to reflash. So the vendors keep
coming up with new ways to hide this. Very annoying!