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| Wiring question: 2 Player CP to 2 Hacked Gamepads. |
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| ViciousXUSMC:
I need to know if this will work. I have a 2 player control panel: 1 joystick & 7 buttons for each player. This is going to be interfaced with 2 hacked dreamcast gamepads via a DB25 connection. I had planned on only having one ground wire chained to every button on the CP. So thats 22 signal wires and 1 ground wire. The question is, when using 2 gamepads can the ground be common between them? Or will I have to use another one of the DB25 pins and run a separate ground for player 2 controllers? Visual Diagram: |
| severdhed:
i can't imagine that will work...you will need to have a dedicated ground for each controller...assuming that the dreamcast controllers use a common ground in the first place. some game controllers do not use a common ground, so you may want to verify that first. are you interfacing this with a pc? are there even drivers that will work with these controllers? |
| ViciousXUSMC:
--- Quote from: severdhed on February 13, 2009, 12:15:01 am ---i can't imagine that will work...you will need to have a dedicated ground for each controller...assuming that the dreamcast controllers use a common ground in the first place. some game controllers do not use a common ground, so you may want to verify that first. are you interfacing this with a pc? are there even drivers that will work with these controllers? --- End quote --- No its going to a dreamcast, if it was PC I would not need it I would just use the I-PAC. I found out it wont work I need seperate ground. So I have updated the plans and added in how it will look final. I may use the one unused wire/pin for a coin input button but it would cost a lot to order just 1 button, so thats only going to happen if I find that I need one and maybe find a nice little button at radio shack. The I-PAC goes to PC for Mame and other PC stuff, the Hacked Gamepads go to the dreamcast for MVC2 :P (yes lots of money & trouble for one game, without this modular setup I could have just wired directly to the I-PAC with no need for DB25 cables, soldering, switches, project boxes ect... the payoff is that I have a modular system with room to add 2 more systems easily down the road) |
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