Re: Dual Trackballs

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Posted by Cryofax on 14, 2000 at 9:52 PM:

In Reply to: Re: Dual Trackballs posted by Tom61 on 14, 2000 at 9:20 PM:

Whoops you're right. For some reason I was thinking the trackballs themselves were sending unique signals but the computer is just polling the port and can't distinguish between them.

So I guess I should hook up one PS/2 trackball and another Serial one? Will the "normal" DOS Mame under Windows 98 recognize a USB trackball? I have an available Serial Port, USB ports, and PS/2 Port.

Thanks - Cryo

: : I'll have two PS/2 trackballs, both connected to a PI Electronics PS/2 port splitter, which then runs to my computer's PS/2 port. From there I plan to use AdvanceMame to seperate and use the two trackball's signals for two-player games (marble madness, etc etc)...

: That won't work, the trackballs have to be connected to different places, a "splitter" only switches between the two to make the computer think that they're one trackball.

: : I'm also going to have a Hagstrom K72 encoder. Is there a good reason I should get the K72T and run the trackballs to that before they go to the computer? Is there any difference?

: If they're arcade trackballs they have to each be connected to an interface. If they're PC trackballs you don't need an interface.

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Solution and additional dual trackballs questions... EmuMannen 10/15/2000 (0)

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: Whoops you're right. For some reason I was thinking the trackballs themselves were sending unique signals but the computer is just polling the port and can't distinguish between them. : So I guess I should hook up one PS/2 trackball and another Serial one? Will the "normal" DOS Mame under Windows 98 recognize a USB trackball? I have an available Serial Port, USB ports, and PS/2 Port. : Thanks - Cryo : : : : I'll have two PS/2 trackballs, both connected to a PI Electronics PS/2 port splitter, which then runs to my computer's PS/2 port. From there I plan to use AdvanceMame to seperate and use the two trackball's signals for two-player games (marble madness, etc etc)... : : That won't work, the trackballs have to be connected to different places, a "splitter" only switches between the two to make the computer think that they're one trackball. : : : I'm also going to have a Hagstrom K72 encoder. Is there a good reason I should get the K72T and run the trackballs to that before they go to the computer? Is there any difference? : : If they're arcade trackballs they have to each be connected to an interface. If they're PC trackballs you don't need an interface.

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