Re: TI-H: TI-85 schematics, CHECK THEM OUT!!!


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Re: TI-H: TI-85 schematics, CHECK THEM OUT!!!




I'd love to take a look, but what's your web page address (i missed it if
you posted it beofre).

- Jon Olson

-----Original Message-----
From: Richard Piotter <richfiles1@hotmail.com>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Monday, February 02, 1998 4:45 PM
Subject: TI-H: TI-85 schematics, CHECK THEM OUT!!!


>
>Mel Tsai gave me his incompleted TI-85 schematic. I finnished up the
>power circuits and keyboard. There are a few processor pins not
>connected yet, but they will be added soon. I just need some strong
>solvent to eat away the paint on the circuit board so I can get the the
>wires. Should be 100% done very soon! There are even DATA and ADDRESS
>bus pins marked!!! This means DIRECT BUS ACCESS may be in the forseable
>future!!!
>
>Go to my web page to see the shematic. It takes a good 50K, so I'm not
>attaching it. I tried but it never would send. Just scroll down in the
>news & updates section and it'll be the first item. It will definitely
>be up by 2:00 PM Central time!
>
>I'll also clean it up some day as well!
>
>Hope you enjoy!
>
>Richard Piotter
>richfiles1@hotmail.com
>
>>
>>Hey, I finally remembered to scan the stuff in.  It's very crude and
>>will probably take you a while to figure out what was drawn, and it's
>>incomplete as well.
>>
>>I've also included the schematic for the internal AT45D041 schematic
>>using the four 'ports' (actually it only uses three).  The programming
>>of these ports takes quite a bit of experimentation and detailed
>>observation of what's going on... I don't have time to explain it.
>>But you have it.
>>
>>-Mel
>>
>
>
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