On Sep 14,  1:14pm, Jonathan Stone wrote:
> 
> >  I have one in a 5000/200.  The PROM recognizes it as a PrestoServe
> >non-volatile memory, but I do not know how it does it.
> 
> I _think_ I do, but I'm not completely sure...
...
> There's also the hairy question of figuring out the battery status
> (which you need to in order know if the NVRAM contents is good),
> figuring out just how much NVRAM there is (IIRC, there were two sizes
> of board), and then checking the signature in the NVRAM.
> Plus maybe fiddling around with enabling charging/online mode,
> vs. going to standby (low-power mode), i forget.

  I've also got a hack in mem.c to let me access the PrestoServe memory
to play with reading and writing it from a user program.  One thing
I noticed was some bits set in the lower part of the memory.  I was
guessing that some of those bits could be the battery state.

-- 
Michael L. Hitch			mhitch@montana.edu
Computer Consultant
Information Technology Center
Montana State University	Bozeman, MT	USA