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Author Topic: CDTV mouse protocoll?  (Read 3656 times)

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Offline freqmaxTopic starter

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CDTV mouse protocoll?
« on: December 21, 2011, 08:28:41 PM »
What protocol does the CDTV mouse really use?, it seems to be a real oddball..

This is what I could find out:

Mouse (4 pin mini-DIN):

cdtv.org.uk: Commodore CDTV Expansion Ports Explained from link at abime.net
Pin Signal
 1 GND
 2 GND
 3 PRDT (Mouse Data?)
 4 +5V
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Offline Cignale

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Re: CDTV mouse protocoll?
« Reply #1 on: December 21, 2011, 08:42:31 PM »
Maybe this link could be helpful   ? :

http://web.archive.org/web/19990209110532/nyquist.ee.ualberta.ca/~ewaniu/cdtv/cdtv-joystick.html


ADDENDUM: erm...no, it can't help..... :-(
« Last Edit: December 21, 2011, 08:54:53 PM by Cignale »
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Offline Zac67

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Re: CDTV mouse protocoll?
« Reply #2 on: December 21, 2011, 09:36:29 PM »
That's a tough one....

The PRDT line runs into the 6500/1 MC - seems to be used with a serial protocol. Unless anyone has access to developer infos it'd be a lot of work to find out how it's working. The SM doesn't detail anything around here. It's probably much easier to circumvent the 6500/1 and tap into the lines in known territories, as explained in the link Cignale came up with.
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Offline freqmaxTopic starter

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Re: CDTV mouse protocoll?
« Reply #3 on: December 21, 2011, 10:34:35 PM »
One use logic analyzer and some brains, it usually gives the answer.

But one need equipment to rig it. And then to export the data. Any takers? ;)
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Offline Minuous

Re: CDTV mouse protocoll?
« Reply #4 on: December 22, 2011, 01:02:54 AM »
That's bizarre, I always assumed the CDTV just had a standard mouse port like any other Amiga. More Commodore idiocy I guess.

The Amiga Developer CD has a lot of CDTV developer info; the answers you seek might possibly be there.
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Offline freqmaxTopic starter

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Re: CDTV mouse protocoll?
« Reply #5 on: December 22, 2011, 01:48:12 AM »
Seems even the "The Amiga Developer CD" assumes the mouse is a 9-pin device 8 Interface Hardware / Controller Port Interface ;)

CDTV is an oddball ;)
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Offline omnicron10

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Re: CDTV mouse protocoll?
« Reply #6 on: December 22, 2011, 02:13:28 AM »
I would like to know the IR protocol for the mouse.  It might be easier to make a PS2 to IR adapter.  The CDTV had a CD1252 wireless IR mouse.  I have a dead one (battery leakage) and they seem impossible to find.  I like wireless!
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Offline Amiwest

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Re: CDTV mouse protocoll?
« Reply #7 on: December 22, 2011, 03:09:51 AM »
//amiga-manuals.xiik.net/hardware lists a manual for the CDTV 1253 mouse that might help.
http://www.l8r.net/technical/cdtv-technical.html has good info for the cdtv.
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Offline freqmaxTopic starter

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Re: CDTV mouse protocoll?
« Reply #8 on: December 22, 2011, 03:33:22 AM »
http://amiga-manuals.xiik.net/hardware/

The "CDTV - CD-1253 - Mouse - Manual-DE.rar" only tells you where to plug in the mouse in essence..
« Last Edit: December 22, 2011, 04:32:27 AM by freqmax »
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Offline psxphill

Re: CDTV mouse protocoll?
« Reply #9 on: December 22, 2011, 08:50:25 AM »
Quote from: omnicron10;672322
I would like to know the IR protocol for the mouse. It might be easier to make a PS2 to IR adapter. The CDTV had a CD1252 wireless IR mouse. I have a dead one (battery leakage) and they seem impossible to find. I like wireless!

It wouldn't suprise me if the mouse port and the IR protocol were the same.
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Offline strim

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Re: CDTV mouse protocoll?
« Reply #10 on: December 22, 2011, 10:23:32 AM »
Quote from: psxphill;672348
It wouldn't suprise me if the mouse port and the IR protocol were the same.


AFAIK they are the same. I suspect that Individual Computers reverse engineered the protocol for their Chameleon cart (which supports CDTV's IR protocol).
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Offline freqmaxTopic starter

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Re: CDTV mouse protocoll?
« Reply #11 on: December 22, 2011, 01:55:21 PM »
Sounds plausible. Guess only soldering & programming remains then ;)
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Offline omnicron10

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Re: CDTV mouse protocoll?
« Reply #12 on: December 22, 2011, 05:29:14 PM »
Quote from: strim;672356
AFAIK they are the same. I suspect that Individual Computers reverse engineered the protocol for their Chameleon cart (which supports CDTV's IR protocol).


But the Chameleon does not support the CDTV wireless mouse, only the CDTV wireless pad.  Not having a working wireless mouse to read the IR protocol has made it hard for me to figure out how to make an PS2 mouse IR adapter like I wanted.
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Offline freqmaxTopic starter

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Re: CDTV mouse protocoll?
« Reply #13 on: December 22, 2011, 10:44:40 PM »
Nothing like "move mouse" keys on the remote control ?
Otherwise.. send random bits until you get some response.
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Offline Cignale

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Re: CDTV mouse protocoll?
« Reply #14 on: December 23, 2011, 08:56:43 AM »
In this chamaleon forum thread there are the "codes" explained; maybe
this can help ?


http://tech.groups.yahoo.com/group/chameleon_64/messages/627?threaded=1&m=e&var=1&tidx=1
« Last Edit: December 23, 2011, 12:13:43 PM by Cignale »
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