Ps/2 Drivers
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Ps/2 Drivers
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kermmartian
Site Admin Kemetech


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Joined: 20 Mar 2004
Posts: 1220
Posted: 16 Jun 2004 10:02:47 am    Post subject:
Yesterday I released what should be correct drivers for PS/2 <--> TI-83/+ communication. The two devices require no extra circuitry other than a 3V to 5V power supply. The connections are as follows:

Tip of link cable <---> PS/2 clock line
Middle of lc <---> PS/2 Data line
Base of lc <---> PS/2 GND and power supply gnd
Power supply +v <---> PS/2 +5V

It seems to be okay, and if anyone would built an interface that would make these connections and test it out, that would be great.
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DigiTan
Unregistered HyperCam 2


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Joined: 10 Nov 2003
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Posted: 17 Jun 2004 12:39:46 am    Post subject:
I don't know about testing (no Ti83 available), but I could maybe do a 82 port and test that one out.
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agility
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Joined: 16 May 2004
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Posted: 17 Jun 2004 06:17:22 am    Post subject:
I'll test out your port for the TI83+. I checked my parts availability yesterday so either today or tomorrow you will have your answer. Anyways, where are these "correct drivers" of yours?
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Arcane Wizard
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Joined: 02 Jun 2003
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Posted: 17 Jun 2004 06:21:04 am    Post subject:
http://www.geocities.com/kermmartian/projects/hardware.html
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agility
Calc Spammer


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Posted: 17 Jun 2004 06:32:30 am    Post subject:
I thought those where the old ones...
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agility
Calc Spammer


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Joined: 16 May 2004
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Posted: 17 Jun 2004 07:13:47 am    Post subject:
Someone's already done this or something similar to this before: http://216.239.37.104/translate_c?hl=en&u=...-8%26oe%3DUTF-8
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Arcane Wizard
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Joined: 02 Jun 2003
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Posted: 17 Jun 2004 07:58:55 am    Post subject:
Well, there's a link there where you can download his PS/2 mouse drivers, and he said he finished them yesterday so I take it they're pretty new.

Last edited by Guest on 17 Jun 2004 07:59:19 am; edited 1 time in total
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wrigley


Advanced Member


Joined: 19 May 2004
Posts: 399
Posted: 17 Jun 2004 03:46:42 pm    Post subject:
I'll do a test on the 83+ as well, but I probably wont get the time before the end of next week.

I have one question though. What is it supposed to do, the driver? how do we test it, do we just connect a keyboard to the calc and see if it types the letters we press, or what?

btw. while were talking keyboards check this program out as well clicky

Last edited by Guest on 17 Jun 2004 03:51:53 pm; edited 1 time in total
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kermmartian
Site Admin Kemetech


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Joined: 20 Mar 2004
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Posted: 17 Jun 2004 04:36:25 pm    Post subject:
They're all new - the old ones had some fairly major errors.

PS/2 Drivers

To wrigley - They need a program to actually make the communication work. Currently there's just [font="Courier"]ps2SendByte and [font="Courier"]ps2GetByte. I'm working on it...

Last edited by Guest on 17 Jun 2004 04:37:58 pm; edited 1 time in total
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Arcane Wizard
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Posted: 17 Jun 2004 04:47:34 pm    Post subject:
So to test it just a loop untill ps2SendByte is true and then display it's value would be enough?
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agility
Calc Spammer


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Posted: 18 Jun 2004 07:05:22 am    Post subject:
What would be cool is if this interface worked with an IR keyboard.
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kermmartian
Site Admin Kemetech


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Joined: 20 Mar 2004
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Posted: 18 Jun 2004 01:19:03 pm    Post subject:
agility wrote:
What would be cool is if this interface worked with an IR keyboard.

It works with every piece of hardware that utilizes the PS/2 protocol, including wired and wireless mice and keyboards. So if the device works with a computer, it'll work with this.

EDIT:

OK, I finished a Shell Expansion (SE) for Doors CS that makes use of the drivers. When used with Doors CS, you can navigate as if you were using the arrow keys.
Cool.

Last edited by Guest on 18 Jun 2004 01:47:24 pm; edited 1 time in total
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agility
Calc Spammer


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Posted: 18 Jun 2004 02:15:15 pm    Post subject:
Have you physically tested this yet? Are you working on the other TICI things anymore such as color screen?
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kermmartian
Site Admin Kemetech


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Joined: 20 Mar 2004
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Posted: 18 Jun 2004 02:19:28 pm    Post subject:
I have not physically tested it yet, although in theory it should work.

Yes, the other TICI 1.0 projects are still underway. I am currently building a prototype of the next TICI 1.0 Color Screen to test it. I will post updates when I make substantial progress.
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agility
Calc Spammer


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Posted: 18 Jun 2004 02:21:46 pm    Post subject:
What parts are you using?
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Arcane Wizard
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Posted: 18 Jun 2004 02:26:19 pm    Post subject:
Arcane Wizard wrote:
So to test it just a loop untill ps2SendByte is true and then display it's value would be enough?

Well? oh, and would there be any Ti83/+ intercompatibility problems?

Last edited by Guest on 18 Jun 2004 02:26:58 pm; edited 1 time in total
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agility
Calc Spammer


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Posted: 18 Jun 2004 02:27:57 pm    Post subject:
Quote:
OK, I finished a Shell Expansion (SE) for Doors CS that makes use of the drivers. When used with Doors CS, you can navigate as if you were using the arrow keys.
Cool.


You can always try disassembling that if he won't answer.
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kermmartian
Site Admin Kemetech


Calc Guru


Joined: 20 Mar 2004
Posts: 1220
Posted: 18 Jun 2004 02:34:17 pm    Post subject:
Arcane Wizard wrote:
Arcane Wizard wrote:
So to test it just a loop untill ps2SendByte is true and then display it's value would be enough?

Well? oh, and would there be any Ti83/+ intercompatibility problems?

Sorry 'bout that...
Basically, do this:


Code:
GetLoop:
    call ps2getbyte
    ld h,0
    ld l,a
    call _disphl
    call _getkey


The ps2getbyte and ps2sendbyte routines don't return to the code that called them until the byte sent/received is confirmed. If I put in time-out routines, it would slow it down too much and the calc wouldn't be able to keep up with the mouse sending rate.

There shouldn't be a problem between the TI-83 -/+

To agility:

<> 4-AND gate IC
<> 4-Invertor IC
<> 2 red LEDs
<> 2 green LEDs
<> 2 blue LEDs
<> 3 100-ohm resistors (ish-I need to check that)
<> 1 piece of plexiglass, 2" by 2 and 25/32"
<> Equal sized piece of tin foil or thin semi-reflective metal

That's it!

Last edited by Guest on 18 Jun 2004 02:37:59 pm; edited 1 time in total
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agility
Calc Spammer


Calc Guru


Joined: 16 May 2004
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Posted: 18 Jun 2004 03:28:19 pm    Post subject:
Well, that's definitely different than your schematics show... BTW have you ever experimented with Pic Programmers?
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Jeremiah Walgren
General Operations Director


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Joined: 24 May 2003
Posts: 1937
Posted: 19 Jun 2004 12:14:43 am    Post subject:
Yay for PS/2 Keyboards.
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