Re: A89: Backups

To: assembly-89@lists.ticalc.org
Subject: Re: A89: Backups
From: Adam Davis <adavis@baladyne.com>
Date: Thu, 17 Dec 1998 09:47:51 -0500
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
References: <b29772d2.36783c73@aol.com>
Reply-To: assembly-89@lists.ticalc.org


I imagine that the only code needed in the rom would be code to d/l
software from a graphlink.

-Adam

Mrosst92@aol.com wrote:
> 
> If I recall correctly the 89 has a full version of the 1.00 system version in
> a regular ROM chip(1Mb chip I think).  The first time it is turned on after
> losing power (or crashing and rebooting) the system is loaded in to the Flash
> ROM.  I can't easily see how you could keep the calculator working properly
> after a loss of power unless this is the case.  If the system in the Flash ROM
> were accidentally, or intentionally, corrupted the calculator would be
> unusable and could not be recovered.   Upgrades to the system or new
> applications would be lost in the event of power loss.  Even if some code was
> still in the Flash ROM the system wouldn't know the address of it.

References:

Re: Re: A89: Backups

From: Mrosst92@aol.com