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

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


Is this something that we can find somewhere?  Not just some old part you
had lying around?

- noah zoschke (nzoschke@juno.com)

On Sat, 21 Mar 1998 14:01:42 -0700 gussie@alaska.net (Grant Stockly)
writes:
>
>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...
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>>>>>
>>>>>
>>>
>>>
>>>
>>
>>
>>Content-Type: application/ms-tnef
>>
>>Attachment converted: Macintosh HD:RE- TI-H- TI-89/92 ROMs NOT com
>>(????/----) (00011845)
>
>
>

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