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Mame Wiring
coliveira:
Hello.
I'm hoping you guys can help me out. I'm trying to help a friend with a 4 player mame cabinet. He doesn't like the inconvenience of the 4 to 8 way convertible joysticks and would instead like to add a 4 way joystick to his four 8 way joysticks. I hope this makes sense. By the way, he's building the control panel himself to attach to a Pit Fighter cabinet.
Anyway, he's already ordered a jpac and an ipac2. Will it be possible to wire a 4 way joystick to the leftover buttons on the ipac2? I guess I'm wondering if the ipac knows if there's a button or joystick attached and if it makes a difference.
Any suggestions on how to help him out if I can't wire it up to the extra button spots?
Thanks in advance. You guys are incredible.
Chris
dfmaverick:
How many buttons is he using?
I only ask since he may not have enough inputs with a 4-player cab and an ipac2.(May need an ipac4)
With the 4-way, you can wire it up to open terminals, but you'd have to change input settings in mame for it. It'd probably be better to wire it up in conjunction with the 8-way.(so it uses the same inputs as the 8-way)
The ipac doesn't care if it's a button or joystick, they're just switches to the ipac. Everything is handled in the software.
coliveira:
Wow. Thank you for the quick response!
He'd only use 5 buttons per player on the ipac2 (3 buttons for play, 1 coin, and 1 start). I think that would leave him enough extra buttons for the 4 way joy stick.
To clarify, are you saying to wire the player 1 joystick and the 4 way joystick together so that you could use either one at a given time?
Also, would he probably just use the player 1 buttons when he used the 4 way or should he put buttons next to it?
This is a bit off topic, what's the most amount of buttons that a 4 way joystick game used? I'm not sure what he has in store for the control panel, but I'm thinking he might want separate buttons next to it.
Finally, would it make sense to wire the 4 way joystick with the player 1 joystick and any buttons he puts with the 4way joystick with the player 1 buttons and then he could use either as was convenient (and hope his kids and friends didn't screw with him while he was playing).
Thanks again.
Chris
dfmaverick:
--- Quote from: coliveira on June 29, 2011, 12:09:26 am ---He'd only use 5 buttons per player on the ipac2 (3 buttons for play, 1 coin, and 1 start). I think that would leave him enough extra buttons for the 4 way joy stick.
--- End quote ---
4 joysticks = 16 inputs
5 buttons x 4 = 20 inputs
16+20 = 36
I believe Ipac2 handles only 32 (without shifting)
--- Quote from: coliveira on June 29, 2011, 12:09:26 am ---
To clarify, are you saying to wire the player 1 joystick and the 4 way joystick together so that you could use either one at a given time?
--- End quote ---
Yes.
--- Quote from: coliveira on June 29, 2011, 12:09:26 am ---
Also, would he probably just use the player 1 buttons when he used the 4 way or should he put buttons next to it?
--- End quote ---
Depends on the layout.
--- Quote from: coliveira on June 29, 2011, 12:09:26 am ---This is a bit off topic, what's the most amount of buttons that a 4 way joystick game used? I'm not sure what he has in store for the control panel, but I'm thinking he might want separate buttons next to it.
--- End quote ---
Generally two is good. A few may have used more.
--- Quote from: coliveira on June 29, 2011, 12:09:26 am ---Finally, would it make sense to wire the 4 way joystick with the player 1 joystick and any buttons he puts with the 4way joystick with the player 1 buttons and then he could use either as was convenient (and hope his kids and friends didn't screw with him while he was playing).
--- End quote ---
Yes.
coliveira:
Fantastic. Thank you so much. He actually bought a jpac in addition to the ipac2 and I'm under the impression that they can be connected. I was going to suggest that he get an ipac4, but he needs the video capabilities of the jpac for booting.
Thanks again.
Chris
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