Re: TI-H: re: mouse interface
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Re: TI-H: re: mouse interface
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.
>>>
>>>
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>--
>Greetings from Visti Andresen (talpa/IRIS)
> May the AMIGA be with you.
> http://www.mip.ou.dk/~talpa
>
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>
>
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