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PICList Thread
'Pic to Ti calc....'
1998\08\25@092508 by Ryan Pogge

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I have built several projects  for a ti calculator based around a PIC  ...
however I always had to buy the PIC's pre programed beacaus ethe creators
would not release the code..  I do not know enough about asm yet to even
begin to atempt this .. but it sure would be a cool project for anyone that
had the skills to do so.

I have heard many many people ask about comunication between a stamp and a
ti-calc on the stamp list, but have not heard anything on this list yet.

to anyone interested I have a few url's which I found very interesting...
about Ti-link protocal and such

www.geocities.com/SiliconValley/3061/index.html
here there are text files dealing with the link protocal

here are some of the projects which use pics...
http://www.flash.net/~bryanr/eii/
the EII is an external memory expansion device.

http://unet.univie.ac.at/~a9501901/irlink/
this is an IR link and remote controll.


duno, just thought it might be of intrest,
latter,
Ryan

1998\08\27@051721 by Russell McMahon

picon face
Are you saying that there is a TI calculator where the cpu is an
'ordinary" PIC - if so, what is the model?

this could be very useful as the basis of small volume
keyboard/display based handheld projects with extra functionality as
required. Keyboard/display/case/battery connections etc usually cost
far more than typical bottom end calculators.



{Original Message removed}

1998\08\27@102357 by Ryan Pogge

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Boy ... you realy jump the gun on that one... :)
no Thats not what I meant... I meant many people interface projects to their
Ti calculators through a PIC.
like the pic handles the communication and reads and write a flash memory
device or something....


>Are you saying that there is a TI calculator where the cpu is an
>'ordinary" PIC - if so, what is the model?
>
>this could be very useful as the basis of small volume
>keyboard/display based handheld projects with extra functionality as
>required. Keyboard/display/case/battery connections etc usually cost
>far more than typical bottom end calculators.
>
>
>
>{Original Message removed}

1998\08\27@213305 by tsk3000

picon face
Ryan Pogge wrote:
>
> Boy ... you realy jump the gun on that one... :)
> no Thats not what I meant... I meant many people interface projects to their
> Ti calculators through a PIC.
> like the pic handles the communication and reads and write a flash memory
> device or something....
Yeah, someone tried to make a "Hard Drive" for their TI to increase
the total memory size.  It was kinda pointless because, if you
didn't have the software on your TI (e.g.: some idiot pulls the
batteries and the TI gets erased), then the little "Hard Drive" was
completly useless.  A good idea, but not very reliable.

> >>I have built several projects  for a ti calculator based around a
> >>PIC  ...
> >>however I always had to buy the PIC's pre programed beacaus ethe
> >>creators would not release the code..
Yeah, most of those TI ASM programmer people are real (pardon my
language) assholes.  They are probably the stingiest group around.
I used to be involved with them, but I've gotten outta there because
there were only one or two people there that I knew that did not
have a cork up their ass.
BTW:  If you (or anyone elseO would like _any_ help with TI calcs,
lemme know...  I am _very_ experienced.
And, speaking of TI people, I'm reminded of the IRC channel they
ran.  Would anyone here be interested in opening/managing a PIC
channel?

> >>I do not know enough about asm yet to even
> >>begin to atempt this .. but it sure would be a cool project for
> >>anyone that had the skills to do so.
I have done this.  I built a TI -> DMX-512 Converter/Transmitter for
a TI-92 (it could be used with others, but...).  If you'd like a
subroutine (for a PIC) to recieve bytes of data from a TI, I can
provide you with such.

Cheers,
--
~Keith
spam_OUTtsk3000TakeThisOuTspamProdigy.Net
ICQ #: 15590177
http://pages.prodigy.net/tsk3000/

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