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This is an archived, read-only copy of the United-TI subforum , including posts and topic from May 2003 to April 2012. If you would like to discuss any of the topics in this forum, you can visit Cemetech's Calculator Hardware subforum. Some of these topics may also be directly-linked to active Cemetech topics. If you are a Cemetech member with a linked United-TI account, you can link United-TI topics here with your current Cemetech topics.

This forum is locked: you cannot post, reply to, or edit topics. Calculator Modifications => Calculator Hardware
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hydravien


Newbie


Joined: 06 Apr 2008
Posts: 5

Posted: 06 Apr 2008 07:43:50 pm    Post subject:

Hi All,

So I have managed to start a ti frenzy at my school... everyone has tetris, and a nifty little app me and a buddy made to solve quadratic equations...

So my question is, is it possible to splice some more connectors into the current ti link cable (these are ti 84+ and 83+ calcs but we all use the 83+ link) to work with multiplayer games such as ztetris and bomberkids? I doubt that it would be something that simple, but the reason i ask is that bomberkids has an option for 4 players.

Thanks,

Nick
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angel14995


Member


Joined: 13 Oct 2007
Posts: 181

Posted: 06 Apr 2008 08:48:42 pm    Post subject:

I always thought that the 4-way was only using 2 calcs. I know you can play Bomberkids 2-player on 1 calc, so 2 calcs=4 players.

And it would probably need to have you do some things, like create a router. I'm not the one to say anything much about hardware, but there are probably diagrams out there that explain a theoretical 4-way link.
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TheStorm


Calc Guru


Joined: 17 Apr 2007
Posts: 1233

Posted: 06 Apr 2008 09:45:51 pm    Post subject:

DCS6 has the capability of doing this but no one has bothered to use it because it has very few uses and would be slower than normal linking which we all know is blazing fast Razz.
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magicdanw
pcGuru()


Calc Guru


Joined: 14 Feb 2007
Posts: 1110

Posted: 06 Apr 2008 09:46:29 pm    Post subject:

angel14995 wrote:
I always thought that the 4-way was only using 2 calcs. I know you can play Bomberkids 2-player on 1 calc, so 2 calcs=4 players.

And it would probably need to have you do some things, like create a router. I'm not the one to say anything much about hardware, but there are probably diagrams out there that explain a theoretical 4-way link.
[post="122255"]<{POST_SNAPBACK}>[/post]

I thought someone made a circuit diagram for a 4-way link cable that would work with a special protocol. But I wasn't aware of any games or programs that actually used that protocol, since nobody wants to build their own cable just to play a game. So Bomberkids probably is 2 calcs with 4 players.
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kermmartian
Site Admin Kemetech


Calc Guru


Joined: 20 Mar 2004
Posts: 1220

Posted: 07 Apr 2008 04:52:14 am    Post subject:

TheStorm wrote:
DCS6 has the capability of doing this but no one has bothered to use it because it has very few uses and would be slower than normal linking which we all know is blazing fast Razz.
[post="122256"]<{POST_SNAPBACK}>[/post]

0x5, correct. Very Happy
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DarkerLine
ceci n'est pas une |


Super Elite (Last Title)


Joined: 04 Nov 2003
Posts: 8328

Posted: 07 Apr 2008 07:51:00 am    Post subject:

You wouldn't be able to play any already-existing games with a 3- or 4-way link cable, even if you made one; they don't have the code for it.
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hydravien


Newbie


Joined: 06 Apr 2008
Posts: 5

Posted: 08 Apr 2008 02:55:06 pm    Post subject:

thanks guys thats what i thought
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Liazon
title goes here


Bandwidth Hog


Joined: 01 Nov 2005
Posts: 2007

Posted: 08 Apr 2008 04:42:26 pm    Post subject:

DarkerLine wrote:
You wouldn't be able to play any already-existing games with a 3- or 4-way link cable, even if you made one; they don't have the code for it.
[post="122263"]<{POST_SNAPBACK}>[/post]


and thus another reason why few would develop such a game Sad
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tr1p1ea


Elite


Joined: 03 Aug 2003
Posts: 870

Posted: 08 Apr 2008 05:26:38 pm    Post subject:

Timendus did something along those lines: http://kvince83.tengun.net/maxboard/viewto...?t=1694&start=0
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luby
I want to go back to Philmont!!


Calc Guru


Joined: 23 Apr 2006
Posts: 1477

Posted: 08 Apr 2008 09:18:02 pm    Post subject:

Well, if you had a 84+, couldn't you connect w/ the usb and the I/O port?
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Liazon
title goes here


Bandwidth Hog


Joined: 01 Nov 2005
Posts: 2007

Posted: 09 Apr 2008 07:43:07 pm    Post subject:

true, but you'll have to test for the calc model and then 3 way would probably be the easiest (1 master + 2 slave calcs)

that'd be kind of cool though ^^ imho, there just should be more link cable multiplayer games.
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magicdanw
pcGuru()


Calc Guru


Joined: 14 Feb 2007
Posts: 1110

Posted: 09 Apr 2008 08:19:38 pm    Post subject:

I agree. Unfortunately, my latest calculator game (which I started two days ago) uses the link port for...something else Very Happy
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SonicBoom95


Member


Joined: 31 Jan 2008
Posts: 237

Posted: 10 Apr 2008 11:05:23 am    Post subject:

Why not just use the dual link ports on the 84 and up? You could link an infinite number of calcs with those.
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Liazon
title goes here


Bandwidth Hog


Joined: 01 Nov 2005
Posts: 2007

Posted: 10 Apr 2008 09:29:24 pm    Post subject:

the problem is trying to sync all the calculators up together, which gets harder the more calculators get added to this network. This is partly because each calc can only talk to two other calculators. Even if you link them in a circle, to get info from one calc all the way to the calc on the other side of the ring, and then send a response back, it will generally take a lot longer, although I don't have as much experience w/ the link port.

Keep in mind that both the link port and the USB part iirc are serial ports, so they only transfer data one bit at a time. The USB iirc is a little better because of some of the existing interfaces, as well as USB8x/MSD8x :)

magicdanw(): o.o sound?? coolness!!!

imho, in game sound would be a really cool thing to do.
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magicdanw
pcGuru()


Calc Guru


Joined: 14 Feb 2007
Posts: 1110

Posted: 10 Apr 2008 09:46:43 pm    Post subject:

Well, I was going to keep you guessing, but I guess sound is the only other thing the link port is likely to be used for. Yup, it's a game that, if finished, will rely heavily on sound, so hopefully I'll be able to pump up the quality! Smile
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TheStorm


Calc Guru


Joined: 17 Apr 2007
Posts: 1233

Posted: 11 Apr 2008 06:59:54 am    Post subject:

imo the original mario86 had sound but they scraped it in place of gray scale coolness.
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brandonw


Advanced Member


Joined: 12 Jan 2007
Posts: 455

Posted: 11 Apr 2008 11:47:59 am    Post subject:

Liazon wrote:
Keep in mind that both the link port and the USB part iirc are serial ports, so they only transfer data one bit at a time.  The USB iirc is a little better because of some of the existing interfaces, as well as USB8x/MSD8x Smile
[post="122364"]<{POST_SNAPBACK}>[/post]


Linking with the I/O port is well-understood, and I have some documentation on calc<->calc direct USB at http://brandonw.net/calcstuff/USBdocs.txt . It's not the best thing in the world, but it should be enough to get two calculators talking to each other. Best thing to do is look at a disassembly of pages 74h and 76h to see how the OS sends/receives large packets without issue.
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Liazon
title goes here


Bandwidth Hog


Joined: 01 Nov 2005
Posts: 2007

Posted: 12 Apr 2008 04:29:54 pm    Post subject:

I'm just pointing out it's not an ethernet cable.
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benryves


Active Member


Joined: 23 Feb 2006
Posts: 564

Posted: 12 Apr 2008 04:50:57 pm    Post subject:

The calculator's link port is ideal for IC, which has enough address space for 112 devices (and is a multi-master capable bus).
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magicdanw
pcGuru()


Calc Guru


Joined: 14 Feb 2007
Posts: 1110

Posted: 12 Apr 2008 05:31:20 pm    Post subject:

So, would that protocol allow several calculators to be connected, using radio shack adapters to plug two standard cables into one calculator? That sounds like it could be pretty useful for games, since I think the stigma against multi-player games is that they might need link cables to be soldered together, which many people can't do (for instance, me! Razz)
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