The "padhacking" thread

The-priest · January 29, 2009, 5:29am

u have a question, i just recently modded my stick with a psx H series pad(not the dualshock version) im using a radio shack usb adapter for my computer. when i was testing it on mame it seemed about 65% responsive for double fireball supers and hadoken and huricane kick motions, charge characters work fairly decent, is this some kind of input lag because its a psx pcb or what?? i need help ive dropped so much money on this project i need help before i waste more money

System_1 · January 29, 2009, 5:41am

Hi!
I’m also having the madcatz retro arcade stick that I’m playing with. And like some of you I also have problems with my Right Trigger (my Left Trigger works well). I just tried with a 100kohm 0,25W resistor today but it didn’t solved my problem.

When I try it on windows controlpanel it shows this when I press my RT. (its swedish language but I think you know what I’m talking about)

http://www.kajfatam.net/dropzone/sticka/RTpressed.jpg

anyone got a clue?

Purrin what problem do you have with you madcatz arcade triggers and did you manage to solve it?

System_1 · January 29, 2009, 6:14am

Ah this actually solved my problem thanks infoseeker

Purrin · January 29, 2009, 7:59am

I’m about to try it out tonight in an hour or so, so no I haven’t yet. I did just ask Arugulaz about the black spinners for the triggers and he said he removed them for his, so if you didn’t do that it could be a solution as I know those can ef with direction. If you did remove them, maybe try a different resistor as Arguluaz said he used a 10k ohm which is what I plan on trying with. Good luck!

System_1 · January 30, 2009, 11:45pm

I’m about to start with my first stick…

I used this PCB diagram on slagcoin.com for the late version 360 wireless controller as a guide.

http://img222.imageshack.us/img222/5766/pcbug9.th.jpg
Is the wiring correct?

It would be great if you could also help me out with this questions:

Is it possible to connect the LB and RB on the front of the PCB (yellow boxes) or is it necessary to connect them with the pins on the back? (like on slagcoins diagram)
How do you hook up a button to the controller’s connect button? (purple box)
RT and LT need the pink ground, not the red, right?
Both red grounds are the same, right?
In the diagram on slagcoin.com, what does he mean by “set triggers to neutral”. Do you just leave them as they are or do you have to do something else?
If I connect the LT and RT like in the diagram, they will only work as digital buttons, right?

pixeldotz · January 31, 2009, 1:30am

@moonkin

everything looks good. the LB/RB can be connected on the otherside where the switches are soldered too. I believe the triggers EACH need a ground and signal. they are not part of the CG setup. Middle ping on the sync button is the signal.

here’s RDCs trace out in case it helps. i’d post more of the info he has on it, but you seem to have the rest all figured out.

http://i50.photobucket.com/albums/f320/RDCXBG/Repair/360CGWirelessBoardTop.jpg

ArugulaZ · January 31, 2009, 4:18am

Definitely get you some 10K resistors. 100K is too much resistance and might be shorting out the input on those triggers.

The-priest · January 31, 2009, 4:29am

anybody gonna answer my question on the last page? i was asking about any known problems with using a psx pcb with a converter

Purrin · January 31, 2009, 6:04am

Thanks man, 10k worked out great as the triggers seem to work perfectly fine.

I’m running into a dual PCB problem now though. Whatever PS2 button I have sharing with the 360 triggers seem to always stay ON. When I use the 360 they work fine of course thanks to the resistors, but when I plug in the PS2 PCB those 2 buttons act if they’re grounded. Everything else works fine on it though.

Any knowledge of how to get the 360 triggers to not give a grounded signal?

System_1 · January 31, 2009, 6:34am

Searched but cannot find anything.

I am hacking a mad catz live retro stick and on the diagram from slagcoin it shows on the back as RC and LC. what are those? Also to set the triggers to neutral you just open it up with them in the open position or is there a way to set them?

Thanks for any answers.

ArugulaZ · January 31, 2009, 6:39am

I don’t know, homeskillet. I’d have to know more about your project before I can offer some advice.

ArugulaZ · January 31, 2009, 6:42am

http://forums.shoryuken.com/showpost.php?p=6033425&postcount=2069

Hey Ecto311, all your answers can be found right here. LC and RC must refer to the triggers on the bottom of the Arcade Stick. They’re analog, but you can make them digital by joining the first two pins of each trigger with a 10K resistor.

Purrin · January 31, 2009, 7:36am

This Is my Project. I’m using exactly those 2 PCB’s even. I have it working fine with no problems as it is in the diagram, but notice that L1 and L2 do not share any connection with the Madcatz PCB as it doesn’t have RT/LT connected at all.

So what I did was use a 10k Resistor on on each trigger, then I connected RT/LT to L2/L1. Well when I plug in the PSX PCB, L1 and L2 are ON and stay ON unless I disconnect the RT/LT wire(s).

So in theory, the RT and LT connections on the Madcatz board must have some kind of ‘ground’ that makes the L1/L2 buttons stay activated. RT/LT work perfectly when I plug in the 360 PCB so the resistors are working fine. I just know I need to connect more stuff to the triggers to get the ground signal weak enough so it doesn’t mess up the PSX buttons.

So is this even possible to do? If so, what and where do I solder it?

I know people just usually drop LT/RT like in the diagram (thanks fsckyle for the diagram and thread btw), I’m just seeing if there’s a workaround as I’d like to keep those buttons.

Thanks if you can offer any help. My EE knowledge is pretty basic.

System_1 · January 31, 2009, 7:53am

I figured it out. Its the under side of the sticks. It is the click function of the sticks.

When I read trigger I was thinking about the left and right triggers on top of the controller.

I doubt that they will be used so I will skip them for now. Also for the triggers with the pot, how do you set that to neutral? Does that even work for a stick or is it mandatory to fuse them together with a resistor?

Thanks for the help thus far.

System_1 · January 31, 2009, 9:45pm

So i just want to clear some stuff up, i’ve heard different things and am confused about the subject. I am hacking a madcatz 360 wired pad for my friend and he wants me to utilize the left/right triggers as well as the left/right buttons. In order to use these do i need to get a 10k resistor for each trigger going to the signal. Do i need to remove the black circular piece? Which of the three solder points are the ground signal I know the middle is the signal but what are the other two? Thanks in advance

ArugulaZ · February 1, 2009, 1:37am

Auti0: Yes, you need a 10K resistor for each trigger, and you can remove the potentiometers (the black circular pieces) if you like. If your controller has a common ground you won’t need to know the ground signal… you can connect ground to another point on your controller.

Purrin: I haven’t worked much with Playstation 2 controllers. However, my guess is that the shoulder buttons on a PS2 controller have a different range than the ones in an Xbox 360 controller, which is why you’re having trouble making a cross-compatible joystick.

The Playstation 2 pad is an odd duck. My understanding is that EVERY button on that controller is pressure-sensitive, not just the triggers on the top. They probably function in a different way than the Xbox 360 triggers as well, which is why you can’t get the two to play nice with each other. There’s a chance that you’ll have to add a switch to your project to address this.

Ecto311: Yes, I believe 10K resistors are necessary to turn off the triggers. If you DON’T add them, any games that use those two buttons will totally freak out.

There’s a lot of great information on this page specifically pertaining to the Xbox 360. I’d recommend that you guys give it a look!

http://forums.xbox-scene.com/index.php?showtopic=471958

Monte · February 1, 2009, 1:50am

quick question, in the series H PSX pcb can the little pcbs that goto the triggers be cut off?

talking about the little ribbons that come out of the side of the PCB on the bottom half of that pic.

Toodles · February 1, 2009, 1:52am

Three little wires and go ONLY to the triggers? Yeah, you can remove those and solder directly to the holes. THe problems happen when you remove the big ribbon connecting the two larger boards together.

System_1 · February 1, 2009, 2:07am

alright thank you very much for the conformation. My board is not common ground, so where is the ground of each trigger.
Thanks

P.S. that list you found is awesome thank you!

Monte · February 1, 2009, 2:51am

yeah the one only connecting the triggers, the horrors of cutting the big ribbon are well documented in tech talk.

thanks for the info!

*The "padhacking" thread*

The "padhacking" thread