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Turbo Twist 2 & Trackball won't play nice!

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Encryptor:
Can you look at previous versions of MAME to find out what they used for a divisor before? When I first hooked up my TT2 it worked great and the mouse worked fine because it was on the X and Y axis. I think I was using around MAME 108 then.

Encryptor

bent98:
So to clarify if you purchase optiwiz you wont have this issue with newer mame version? If so what does the optiwiz do different?

ideft:

--- Quote ---The TT2 will not work with a standard Opti-Wiz interface.  The master
version of the TT2 will support a trackball with the correct cable, but
a TT2 needs a TT2 interface to function.

--- End quote ---

RandyT:

--- Quote from: bent98 on February 12, 2008, 05:41:21 pm ---So to clarify if you purchase optiwiz you wont have this issue with newer mame version? If so what does the optiwiz do different?

--- End quote ---

I can see there is some confusion here, so I will try to clear it up a bit.

This issue is only when using the TT2 on the Z-axis with certain versions of MAME.  MAME was tweaked several versions back to overcome an OS "feature" that makes the Z more sensitive than the X and Y axes.  The tweak was undone in a later version when the RAW Input code replaced the earlier input code (thanks u_rebel for verifying this).

The only way an Opti-Wiz (or other optical interface) will help, is to leave the TT2 on it's own interface and move it to either the X or Y axis, and use the Opti-Wiz for the Trackball.  Note: this is not necessary for the Electric ICE Trackball, as it has it's own interface.

This is actually the better approach anyway, as later versions of MAME will show the separate devices as MOUSEx , meaning that there is no possibility of interference between controls.  Having the TT2 on Z and the Trackball on X and Y accomplishes this separation as well (all on the same MOUSE device,) but relies on the specific version of MAME in use to support that configuration.

RandyT

fryguy:
Rats.  I just recently bought a Happ harness trackball and TT2 separately and thought I'd be able to use them together on the TT2 OptiWiz interface without incident.  Now it looks like I'll need a second OptiWiz for the trackball, so as not to limit myself from using current and future versions of MAME.  Bummer.  Makes me also second-guess getting the harness trackball instead of the USB version.  20/20 hindsight sucks.

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