RE: TI-H: TI-89/92 ROMs NOT compatible

To: ti-hardware@lists.ticalc.org
Subject: RE: TI-H: TI-89/92 ROMs NOT compatible
From: gussie@alaska.net (Grant Stockly)
Date: Sat, 21 Mar 1998 14:01:42 -0700
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: ti-hardware@lists.ticalc.org

You have no idea which HD I use.  The HDs I use only use about 50ma at full
access.  They are the HP KittyHawk kind.  They are about the size of a pack
of those hotell matches or the size of the metal part of a disk.

>Okay, the deal is that a hard drive will eat power alive.  4 AAA batteries
>won't cut it.  However, if we do plan on connecting all of this extra
>secondary storage in any form, why not give ELKS a shot on the 89?  Seeing
>as there's Linux on the PalmPilot (another 68K system), perhaps we could
>dumb it down a bit and have something close to POSIX compliant UNIX on the
>calcs.  Of course, I would personally recommend actually upgrading the
>system RAM as well to something a bit more respectable, since EMS and
>virtual memory schemes are painfully slow, and we don't want to write too
>often to an EEPROM.
>        But Linux would be great.  Think about it, finally some real power
>on a calc.
>Christopher Kalos
>raptorone@geocities.com
>VirtuTech Developer's Group
>AOL IM: Raptor1CK
>
>----------
>From:   Robert Brack[SMTP:reb@netride.com]
>Sent:   Friday, March 20, 1998 8:06 AM
>To:     ti-hardware@lists.ticalc.org
>Subject:        Re: TI-H: TI-89/92 ROMs NOT compatible
>
>
>
>
>Is is possible to make the hard drive part of the EII?  Like an extension,
>get the smallest EII chip, use it as a dedicated driver for the HD, and then
>figure out how to format the HD.  If we format it IBM, then we can download
>games and stuff from the computer to the HD, and not need a link cable.
>
>
>>Probably on the 89 or 92with + module...we'd have to modify the calcs rom
>>and use a special bus address line.  That would mean we would have to find
>>an empty space in rom...  Maybe a pointer in the flash rom (in 89 or +
>>module) that looks for the driver in RAM.  If it finds it then it can
>>access the HD.  we don't have enough room in rom for a HD driver...  we
>>need at least 12k
>>
>>Grant
>>
>>>http://www.eklektix.com/gfc/gsale/ He only has one, though.  How hard
>would
>>>it be to change the program to suit a different sized hard drive?  Also,
>>>where can you get yours?  Go for 40MB, 2 dollars won't break anyone, even
>if
>>>noone will go over 20MB in the first place, still, 8 years ago I though I
>>>would never outgrow my 40MB drive!!!  And if we get more space, the
>programs
>>>can be made bigger, better, and with more cool pics.  Imagine a 100MB calc
>>>game :-)  Anyways, think about it.
>>>
>>>
>>>>
>>>>Where?  I can get 20MB for $2 and 40MB for $4...
>>>>
>>>>>I know where to get a 100MB SCSI drive for $20 or less, would that still
>>>>>work?  I don't know where to buy a 20MB!!!
>>>>>
>>>>>
>>>>>>
>>>>>>For now lets do a 20MB HD...then we can get a 21.5GB Quantum to work
>:)
>>>>>>
>>>>>>>Yeah, CD-ROM support!!  Get every single Fargo program on one CD-R and
>>>pop
>>>>>>>it in!  Well, a small hard drive would be more practical. . .
>>>>>>>
>>>>>>>>Does anyone want SCSI support on the TI92/89?  I was diging around my
>>>>>>>>"treasure" room and found my "hot wired" 512k.  Apple sold 200 of
>those
>>>>>to
>>>>>>>>special distributiors to demonstrate the 'puter.  They thought that
>>>>>>>>customers would buy a computer if it had 4MB/SCSI/800k instead of
>>>>>>>>512k/400k...
>>>>>>>>
>>>>>>>>
>>>>>>>>The neat thing is that steve jobs actually signed the motherboard!
>not
>>>>>>>>only the Case!  There are about 20 wires running from the CPU to a
>chip
>>>>>>>>which connects to a ribon cable and then goes out the battery port
>>>thing.
>>>>>>>>It uses the standard a SCSI controller so...SCSI on the 92!  I think
>>>its
>>>>>a
>>>>>>>>NCR.
>>>>>>>>
>>>>>>>>>> new OS onto the chip.  With 1 meg of space on it, why not put a
>>>>>modified
>>>>>>>>>> MacOS?  When I say modified, I mean, moving the command keys
>around,
>>>>>and
>>>>>>>>>> pointing the ADB port out the link port (we'd have to supply power
>>>>>>>>>> seperatly.)
>>>>>>>>>
>>>>>>>>>OS is Easily done, but I don't know about ADB.
>>>>>>>>
>>>>>>>>Just use the arrow keys...
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>
>>>>
>>
>>
>>
>
>
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Follow-Ups:
Re: TI-H: TI-89/92 ROMs NOT compatible
From: nzoschke@juno.com (Noah S Zoschke)