TI-H: Motion control and a UNIVERSAL Interface

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TI-H: Motion control and a UNIVERSAL Interface

>What do you plan on using with the interface?

Anything you want, and that is why it's so cool!

>BTW, if it works, that may be something for Mel to add to his Expander.

Not realy. His expander gives you basic memory expansion or extra 
features, but it would be pointless. The best thing would be to have the 
device plug into the calc because it doesn't use any special comands or 
anything. It is a straight data Reading/Writing device. You give it a 
piece of 8-bit data, an 8-bit address and a high or low address line, 
and a R/W line, and you have it running. You could have a library or 
driver send the stuff to the I2C chips to output and then programs 
wouldn't have to worry about anything other than the address, data, and 
R/W lines. No commands, No controlers. Only an I2C driver to relay those 
simple bits of data through the I2C chips and back into simple bits of 
data! Probably the first interface that DOESN'T need a micro controler 
to run smoothly and efficiently. Why the hell do you think it is called 
the UNIVERSAL COMPUTER EXPANDER BOARD!  (=

Putting a microcontroller on it would be as overkill as putting a quad 
processor, 275MHz PowerPC addon board to a TI-92 and plugging it in to a 
21" monitor, just to play Interstate 76 with 40 other people accross the 
world wide web!!!   (=   (=   (=

>I wish you luck on it =3D)

Thanks! I have the main board etched, but never put all the parts on it. 
I think it might be time to finnish!

>2 other things:

>1) I believe I saw you talking about stereo speakers, have you made or
>designed any that worked?  Also, do you have TI driver source for it?  
(I
>would like to port it to the 86)

The Stereo earphones are not my design. I got it off of ticalc.org. If 
we get the amplified speakers to work, then you could make a stereo cart 
or maybe have an earphone plug that supports stereo. If you just want 
stereo earphones, connect one speaker to the data (tip or red on link, 
top right on SPinTerface) and the other to the clock (middle or white on 
link, bottom right on SPinTerface). The groung connects to the gnd (base 
or bare on link, bottom, second right on SPinTerface)

>2) Would you mind if I took your SPinterface page, and rewrote it to 
fit
>the 86's design? (Credit given of course).

It isn't required, because the SPinTerface is identical for all calcs. 
You just need to find a suitable location for it. The TI-85 and TI-82 
instalations are identical. 83 and 86 instalations are probably 
different from 82/85, but they are identical to each other. The TI-92 is 
far different, but quite easy to install the SPinTerface onto. The big 
space under the back panel (not the cover, but the panel that covers the 
4 batteries) allows space for tons of upgrades. The parts all fit 
perfectly into that area, and the connector can protrude from the case 
next to the link port. You just need to run wires from the link port 
connector and the batteries to the SPinTerface circuitry. I have only 
seen the inside of a TI-83 once, and it was brief, just to clean wet 
sand out of it (= !!! I don't know exactly how much space there is due 
to the narrow, ergonomic bottom, but I'm sure it can protrue at an angle 
or out the side. If you want it to protrude from the bottom, you could 
cut a little back and bend out a small piece of the side. You could then 
glue small pieces of plastic to cover the side of the connector

  |                 |\ <--Small piece of plastic to cover protrusion,
  |                 |_\   If it needs to protrude that far out.
   \________________/_| <--/
                 |____| <----connector


>If so, may I have the driver
>source for the SPinterface as well so that I can port that to the 86?

Do you know how to port link software from 85 to 86? If so, then you 
already know how to port the SPinTerface, because it is not a "new" type 
of port. It is just a BETTER link port. The only difference is that it 
contains a 5v power source and allows dirrect connection to the battery, 
which makes battery expansion, calc "jumper cables," daisy chaning of 
devices and calcs, and the adding of power packs easy to do. Its built 
in power supply allows cartridges to be built. Things no longer need a 
separate power supply and batteries.

There is no software to port for the SPinTerface only. Only link 
software, because the SPinTerface simply attaches to the link port's 
connections.

I hope that clears things up and says why I am so excited about this 
project, no matter what people say, and thanks to those who wish me luck 
or help on this project!!!   (=

Richard Piotter

e-mail: richfiles@hotmail.com

home page: <A 
HREF="http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html">The 
Richfiles</A>

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