Re: Internal omnigo battrey?

Max Mansour (mmansour@gis.net)
Wed, 31 Jul 1996 16:52:37 -0400

Jeff Hinman wrote:
>
> > Hi, Teusday morning my omnigo crashed and i couldnt soft or hard
> > boot because i couldnt find a pin and soft booting didnt respond so i
> > took out the batterys (both). About 5 min later i put them back in and
> > my work wasnt gone! It restarted and went into geos and all my apps
> > were still there. That meanes that there must be some kind of
> > rechargable backup battery (besides the coin cell) built into the omnigo
> >
> > THaks
> > Jake
> >
>
> Most likely this is due to capacitance and SRAM memory threshold. This is quite
> common with volatile RAM (some SRAM cards do this also - some for 24 hours or
> more). A user has taken apart the Omnigo and has described the contents and did
> not mention an additional battery. Any one else?

But the OmniGo's RAM is *not* Static RAM. It is Self Refresh DRAM
(SRDRAM), which requires constant power. That is why the Omnigo has no
"off" mode (see my recent post with power mode info, or the OmniGo SDK
Book).

>
> Jeff Hinman
> ust941@edcca4.bgl.ca.boeing.com
>
> 

-- 
; Max Mansour  // mail : mmansour@gis.net
;             // irc : Justarius
; 
; The Presidents -> http://www.gis.net/~mmansour/
; HP OmniGo 100  -> http://www.gis.net/~mmansour/omnigo/omnigo.html
; ZShell         -> http://www.gis.net/~mmansour/zshell/zshell.html


.end