Re: TI-H: re: mouse interface

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Re: TI-H: re: mouse interface


 Ok, here is my $.02 on the mouse idea. 
 First, use a PS/2 mouse.  The wires it uses are +3.3V, Gnd, and Clock
(01010101...) and Data from the mouse.  
 Next, obviously, tie the grounds together and put two AA's on the power
wire to the mouse.
 The hard part will be having the TI-xx decode the constant stream of data
from the data line.

At 06:07 PM 10/31/98 +0100, you wrote:
>
>They made the mouse work with the HP-48, so I believe it would be possible
>for the TI-92 or the TI-89 that are at least twice as fast as the HP and a
>lot better. It is a pity that there are so many cool things for the HP and
>so few for the TI.
>
>MP <philhuck@club-internet.fr> <http://mp.i-france.com>
>
>
>-----Message d'origine-----
>De : Visti Andresen <talpa@mip.ou.dk>
>À : ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>Date : mercredi 28 octobre 1998 17:10
>Objet : Re: TI-H: re: mouse interface
>
>
>>
>>On 28-Oct-98, Grant Stockly wrote:
>>>
>>> Most mice are serial.  I'm not sure if a mouse like you describe actually
>>> exists...  :\
>>>
>>> Grant
>>
>>I'm believe that even a PC mouse contains "quadrature" signals (line A and
>>line B is out of phase by 90°)...
>>
>>they look something like this:
>>
>>     (G)     here the mouse changes direction
>>
>>
>>line A
>000001111110000011110000011111000001111G1111111000000001111110000011111
>>line B
>>000111110000111111000011111000001111100000111111100001111100000111111000
>>
>>if you then connect line A to a bidirectional counters clock input
>(triggering
>>on changes)
>>and connect line B to the direction input it will count up if you move the
>>mouse
>>in one direction and down in the other direction...  (there are naturally
>two
>>line for up/down and two for left/right)
>>(in PC mice this data is transformed into serial data)
>>
>>>
>>>
>>>> To put a mouse interface in a ti-86 you could try putting connections to
>>>> all of the arrow keys, and enter and 2nd, or whatever, thenmodify a
>mouse
>>>> s that moving it just closes the switches.
>>>>
>>>>
>>>> -----------------------------------------------
>>>> FREE! The World's Best Email Address @email.com
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>>--
>>Greetings from Visti Andresen (talpa/IRIS)
>>     May the AMIGA be with you.
>>  http://www.mip.ou.dk/~talpa
>>
>>    Want my PGP key? Look at my WWW Page or mail me.
>>
>>
>
>
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