RJ-45 MC Cthulhu+ IMP+ Xbox 360 Dual Mod Tutorial Diagram _ Shoryuken

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RJ-45 MC Cthulhu+ IMP+ Xbox 360 Dual Mod Tutorial DiagramDiscussion in 'Tech Talk' started by rtdzign, Feb 13, 2010.

Edit: Now add 3DO (1player only, no daisy chain) and Dreamcast (no VMU support) to that list.

edit 2: Too lazy to update for Imp Version 2. That version autodetects. Here is another tutorial for it.

http://shoryuken.com/forum/index.ph...-xbox360-rj45-custom-stick-and-hitbox.132695/

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1

rtdzignWell-Known Member

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RJ-45 MC Cthulhu+ IMP+ Xbox 360 Dual Mod Tutorial Diagram | Shoryuken http://shoryuken.com/forum/index.php?threads/rj-45-mc-cthulhu-imp-xbo...

1 de 21 08-11-2012 20:27

So many people have been wanting a tutorial or guide for the Ultimate Stick setup:

The RJ-45 MC Cthulhu + Imp + Xbox 360 Controller Dual mod.

The goal of this tutorial is to visually show how to wire up the PCBs, and provide links to other tutorials/info pages for the other

needed info like making ethernet cables and hacking random Xbox 360 controller pcbs. I also must emphasize; I don't recommend

that you take this project on as your first joystick mod. As tempting as it sounds to get a stick like this setup, if you have no

soldering experience, there is a good chance you will screw up and short a part of your PCB. Obviously do this at your own risk.

Parts:

MC Cthulhu

Xbox 360 Madcatz Fightpad PCB or Madcatz common ground Xbox 360 pad

Imp Kit (no usb jack) or DPDT switch

Soldering Iron 15-30 watt with a fine tip recommended

Soldering wire

Desoldering spring action pump. Just in case you mess up or need to remove solder

Digital Multimeter (cheap category I with audio continuity check)

Cat 5e cable or Cat 6

Neutrik RJ-45 pass through.

Switchcraft RJ-45[/URL](best for wood), or any RJ-45 (and 24mm drill bit, forstner or spade bit for wood, holesaw for metal)

Ethernet Jack crimper

Extension cables for systems you want

Stranded wire (reccommend 26 gauge stranded in as many colors you can find)

Drill free option Update:

Instead of a 24mm hole to mount a neutrik or switchcraft RJ-45 jack, you can feed the ethernet through a notch and use a ethernet

coupler. Recently I modded a VLX but this can also be used with a TE or any stick with a cord notch. I didn't want to drill into my

VLX case so Instead I used an Ethernet coupler and hid that away in the cord compartment. I tied a knot in my ethernet cord so

that the cord would not be pulled out of the notch used for the default usb cord.

Prerequisites!!!!

First off I would have you also refer to the following tutorials for prerequisite knowledge information:

Know and understand everything about PCBs on slagcoin. I hope you have at least done one pad hack stick, or at the very least

wired a plain old cthulhu by itself and have made a working stick.

http://www.slagcoin.com/joystick/pcb_wiring.html

The often referred to Bomberman Dual Mod Tutorial while awesome, it is specific to madcatz sticks Edit: Looks like the thread is

lost forever. =(

Installing an MC Cthulhu and Imp in an Xbox 360 SF4 SE stick

http://forums.shoryuken.com/showthread.php?t=184787

(Official MC Cthulhu forum)

The official Cthulhu/ChImp board thread

http://www.shoryuken.com/showthread.php?t=162026

(More info on how to make system cables)

My RJ-45 ver 2 rewrite with new console info.

http://shoryuken.com/forum/index.ph...e-cthulhu-arcade-stick-tutorial-ver-2.100475/

(If you are using a regular madcatz pad)

How to padhack an 08/09 Madcatz 4716 Common Ground Xbox 360 Pad

http://shoryuken.com/forum/index.ph...adcatz-4716-common-ground-xbox-360-pad.71804/

For this Tutorial, You should already know basics such as hacking a common ground PCB or know how to hook up a cthulhu by

itself. Go to slagcoin.com or the cthulhu thread because I won't be going over that kind of basic info. In this diagram I am

reccomending a Madcatz SF fight pad, for ease of hacking (especially of LT and RT) and nice PCB size. I have an MC Cthulhu


2 de 21 08-11-2012 20:27

board minus the componnents for the lables. You can use a Madcatz 4716, a Madcatz Retro Stick PCB, or a SE or TE PCB, you

just have to know where the solder points are for those. Here are the signals for the 360 fightpad.

Step 1: Piggyback

In this step refer to the MC Cthulhu documentation paper that has the holes labeled. I first solder the A-H and 1-9 on the MC

Cthulhu and solder it to the appropriate button signal on the xbox 360 according to the document. I use a multimeter to constantly

continuity check, and use many colors of wire to help me out in labeling.

Alternately, you can also solder or screw into the button signals to the screw terminals on the MCC, it is electrically the same. This

might be easier if you are dual modding a 360 TE.

Before you solder off that USB cable off of the Xbox 360 pad to solder on the Vcc, make sure you write down or draw or take a

picture of what order of colors the USB cable attach to the PCB. If looking at if from the front left to right it should be red(VCC)

White (D-) Green (D+) Black (Ground) if using the fighting pad pictured

Aside from piggybacking the buttons and directions, make sure that you also connect the Vcc (A on MC Cthulhu) to the Vcc (red

cable on USB on x360 pad) .

For wiring Ground, I like using one of the big contacts on the dpad on the Xbox 360 and wire that to the MC Cthulhu (hole "C". It

says to wire to USB black wire on 360 pad and that is fine too. Since Grounds are common all over the board it doesn't matter

where you solder too so long as it is one of the common grounds)


3 de 21 08-11-2012 20:27

Copied From Welcome Doc

This board is fully common ground, so can be used in dual pcb setups. The tight two rows of unlabeled points (labeled A-H and

1-9 in the image above, but unlabelled on the board itself) can be used as extra places to access the signal lines for making a dual

pcb setup. The pinout and recommended connection to a MadCatz360 pad is below. This is an advanced mod, and NO help will

be available to do this:

A - VCC. Connect to the spot the red wire from the 360 USB cable went

B - D-pad Down

C - Ground. Connect to the spot the black wire from the 360 USB cable went

D - Select

E - D-pad Right

F - Roundhouse/3rd Kick. Recommend at RB.

G - Fierce/3rd Punch. Recommend LB.

H - Jab/1st Punch.

1 - D-pad Up

2 - 4th Punch. Recommend RT.

3 - D-pad Left

4 - 4th Kick. Recommend LT

5 - Start

6 - 2nd Kick/Forward.

7 - 1st Kick/Short

8 - 2nd Punch/Strong

9 - Home/Guide


4 de 21 08-11-2012 20:27

Of course to do it neatly I solder the wires to the back side away from the bottom and try to keep it neat.

Step 2: D+ and D- to Imp

I am going to make MC Cthulhu Primary and Xbox 360 Secondary. You can switch it around if you want. The primary (MC Cthulhu)

will be default, and holding Guide will use the xbox 360 PCB. I reccomend that you have a dedicated button for Guide/Home as

opposed to Sel+Start = Guide/Home. I am not sure what happens when you set Select+Start to be Guide, because by default

Sel+Start on bootup enters bootloader mode. And Guide on bootup switches to option 2.

Take the D- from the MC Cthulhu (in this case column D, row 1 pictured) and wire it to one of the "1 D-" on the Imp. Take the D+

(use column E, row 1) and wire that to the "1 D+" on the imp

Do the same for the xbox 360 but to "2 D-" and "2 D+"

(Option B) Step 2B: Wiring to DPDT switch.

Alternatively, You can use a "Dual Pole Dual Throw" or DPDT switch if you don't want to use an Imp. You will have to drill a hole or

cut a slot into your stick depending on what type of DPDT switch to mount the case. That or train a hamster to live inside your

case to switch the DPDT for you, just be sure to clean the poop. If doing this step, skip step 3 and go straight to Step 4 option B.

The imp was made for people that did not want to drill a hole in their stick or rework a wood case. Reworking a wood case takes

some effort,tools and skills that some people don't have.


5 de 21 08-11-2012 20:27

Step 3: Connecting Ground, VCC, and Guide/Home to Imp

You can take the Ground from anywhere from either the Xbox 360 or MC Cthulhu, doesn't matter, but here I'll choose this screw

terminal and solder that to the Ground.

Connect the VCC on the MC Cthulhu to the imp, I used A on the Piggy back connector holes, but the VCC screw terminal will work

too. In the case I ever find an optical joystick that requires a 5+V Vcc at a reasonable price, I'll keep the VCC screw terminal open.

Connect the Guide from the MC Cthulhu to imp. I chose to solder to 9 on the piggy back connector, but you can also use the home

screw terminal or solder to the guide on Xbox 360.

Step 4: RJ-45


6 de 21 08-11-2012 20:27

This is where it is gets hard to wrap your head around it. The Imp is used to control the D+ and D- from each pcb when using

USB. So we wire all but two wires from the RJ-45 out jack to the MC Cthulhu. Those two wires we route to the output D+ and D-

on the imp. I think the picture will explain it better. Once this is done you can plug the RJ-45 into the pass through port. If you are

using a keystone jack then you have to punch down the wires into the proper terminals. Just so you know most Cat 5/6 cables are

color ordered in type "B" layout as shown below, so make sure that you look into the end of your jack and the color layout matches

up to what I got here.

(Option B) Step 4B- RJ 45 with a DPDT switch.

Wire the 5 (D-) and 6 (D+). The Blue/White wire should line up with the other two white wires and the green wire should line up to

the other two green wires. The switch will only activate one pair of D+ or D- lines.


7 de 21 08-11-2012 20:27

Step 5: Wire up your buttons and Joystick

Assuming you are attempting this mod you should already know how to wire up a joystick and buttons. Use the Screw terminals to

the appropriate buttons and joystick connectors/harness wires. If you don't know how to do this then I'm just going to point you to

slagcoin.com and look up PCB and Wiring.

http://slagcoin.com/joystick/pcb_wiring/custom_setup.png

Now look at the mess of wires. It is no wonder that despite there being a tutorial already, this mod is hard to follow.


8 de 21 08-11-2012 20:27

Hi Res wiring Examples (some have variations in wiring but as illustrated above is best):

Dhalsim stick with 2009 pad with trigger invertors:

Blue Aluminum Stick with 2007 Madcatz pad:

Using DPDT Switch with Retro PCB:

Step 6: Make a cable

I am going to just refer to this thread:

RJ-45 Tutorial ver.2

http://shoryuken.com/forum/index.ph...e-cthulhu-arcade-stick-tutorial-ver-2.100475/


9 de 21 08-11-2012 20:27

My RJ-45 ver 2 rewrite with new console info. Skip to post 2 for the creating cables part. Look for the stop sign that reads "Making

System Cables"

Edit:Picture for Imp Version 2

Too lazy to do a step by step, but hopefully this pic will help out with the different changes. With the newer Imp Version 2 you get

autodetection, so you don't have to hold a button on plug in.

Taken from this thread by Bapex215

http://shoryuken.com/forum/index.ph...-arceye2-toodles-fgwidget-led-control.132695/

RJ-45 pinout.


10 de 21 08-11-2012 20:27

rtdzign, Feb 13, 2010 #1

xpulse, tato_6_6_6 and dako like this.

Torta, Feb 13, 2010 #2

bigsexyc420, Feb 13, 2010 #3

Ikagi-chan, Feb 13, 2010 #4

So.. that's the setup for using 360 , and mc cthulhu with just 1 RJ45? that's makes me HAWT

Thanks for this Ritz, a visual guide is def what people needed to make things alot easier. 'Specially bieng a visual learner myself, I

can say that it makes it much easier.

Good Job man.

nominated.

rtdzign, this is a great tutorial! I was wondering how people were doing the 1 RJ-45 port mod for everything for a while and I guess

I know how to now! I'm not sure if you know, but since you've been pretty involved with the Multi-Console Cthulu project, does

having the RJ-45 jack take care of the USB connections as well make you lose any opportunity for other consoles on the MC

Cthulu? Like for instance, are you still able to use the newly implemented NES and SNES controller support with this variant of the

RJ-45 mod?

Of course you can use the SNES/NES using this.

This basically gives you full MC functionality using the RJ45 port, but allows the PS3 USB cable you make to work on a 360 if you

TortaA piece of Cake

bigsexyc420Keystone II

Ikagi-chanLoves his HRAP2SA!

<3


11 de 21 08-11-2012 20:27

Kreeeee, Feb 13, 2010 #5

Ikagi-chan, Feb 13, 2010 #6


shrimpnoodles, Feb 13, 2010 #8

jdm714, Feb 13, 2010 #9

hold the guide button down. No offence but I'd make sure you fully understand what's going on before blindly following a mod like

this as it saves a load of problems occurring further down the line.

Personally I did this to a 360 SE, making the RS switch activate the PS3 mode, so DP or LS is for the 360, and RS is used for all

other consoles.

Kreeeee said: ↑

Of course you can use the SNES/NES using this.

This basically gives you full MC functionality using the RJ45 port, but allows the PS3 USB cable you make to work on a 360

if you hold the guide button down. No offence but I'd make sure you fully understand what's going on before blindly following

a mod liek this as it saves a load of problems occurring further down the line.

Personally I did this to a 360 SE, making the RS switch activate the PS3 mode, so DP or LS is for the 360, and RS is used

for all other consoles.

If the "No offense" bit was directed at me, none taken at all! I have however done RJ-45 mods (to 3 sticks actually, all for my

friends) but I never did one with just 1 RJ-45 port for all functions. Usually, I'd be using a USB cable on the side for the PlayStation

3 and Xbox 360 support, but I might have to try this if it can still retain the full console range provided by the Multi-Console Cthulu

(though it's not like it matters; neither my friends nor myself need compatibility for the NES, SNES, or Xbox 1! ).

Yeah I tested this out with SNES/NES and every console that the MC Cthulu supports, with the exception of original Xbox, I have

an xbox cable made from a busted controller, but never decided to dig the system out of storage.

I didn't read the whole thing, but looking at the pics, I don't think you show the connection between the vcc/ground from the x360 to

Cthulhu or imp. only Cthulhu to imp. so only 1 pad is powered right now. or it's not clear. try to make important things like that as

clear as possible otherwise, you'll have a lot of posts asking why it doesn't work. the kick to kick punch to punch, that you can be

vague about.

I see it.

+5V of Xbox 360 PCB is connected to Unlabeled VCC on Multi-Console Cthulhu.

shrimpnoodles said: ↑

I didn't read the whole thing, but looking at the pics, I don't think you show the connection between the vcc/ground from the

x360 to Cthulhu or imp. only Cthulhu to imp. so only 1 pad is powered right now. or it's not clear. try to make important

things like that as clear as possible otherwise, you'll have a lot of posts asking why it doesn't work. the kick to kick punch to

punch, that you can be vague about.

It is done during the piggyback step 1. Vcc is A on A-H. Ground is connected through piggyback as well. As long as all of the piggy

back holes are used then this is taken care of. Nonetheless I decided that it was worth pointing out in the step via text, but doesn't

need an extra picture.

KreeeeeXBox 3-Sticksty!

Ikagi-chanLoves his HRAP2SA!

<3


shrimpnoodlesduh

jdm714Blue Blue Glass Moon



12 de 21 08-11-2012 20:27


DeepThoughts, Feb 13, 2010 #11

Toodles, Feb 13, 2010 #12

Gasp, Feb 13, 2010 #13

Matskat, Feb 13, 2010 #14

b15sdm, Feb 13, 2010 #15

networkingyuppy, Feb 13, 2010 #16

How did you determine which SNES lines (clock, latch, data) went to which cthulhu columns (A, B .. ,F)?

Good shit son. The diagrams look absolutely perfect.

im about to do this mod too

just in time!!!!

is there a link how adding the ps2 to this works i never quite understood it

I thanked you via PM, but gotta do it publicly!

GREAT JOB....I finished mine this afternoon - started working on it around 10am.

Perfect tutorial.

I built a Mushihimesama Futari stick and finished it today, just in time because the game arrived in the mail moments after I got the

stick to register on both my PS3 and 360.

Perfect timing....I'll post the stick later...I'm gonna play!

Excellent tutorial for those that never quite understood how to undertake a dual mod. The fact that you also showed how to wire

the RJ45 cable is a bonus.

Brilliant work!

Good stuff rtdzign!

I was wondering about one thing though about the VCC hole of the USB jack on the Imp board; Where should that line be

connected to?

DeepThoughtsWell-Known Member

Toodlesda Fetus of Gawd!

Gasp| | | | |

MatskatCustom Arcade Sticks

b15sdmWell-Known Member


13 de 21 08-11-2012 20:27

gahrling, Feb 13, 2010 #17

hikarutilmitt, Feb 13, 2010 #18

rkmx52, Feb 13, 2010 #19

Quieted Chaos, Feb 13, 2010 #20

cables, Feb 13, 2010 #21

networkingyuppy said: ↑

Where should that line be connected to?

It wouldn't.

Damn, you beat me to it. I was going to make a diagram, too.

I think the only thing I did different, for sake of being thorough, was solder the "fat ground" from the 360 PCB to one of the large

usb grounds on the imp (more or less like how it's done with a chimp). I noticed early on it didn't seem necessary but it's a good

"just in case" in the event someone mixes the two ground wires up and is wondering where the fat ground goes to.

Either way, awesome. Now I don't have to mess around with Gimp.

I have a question for the small slots in Cthulhu, when you soldered them to connections like A-H/1-9 or the columns for RJ-45,

what kind of soldering technique did you use. Did you strip the wires, tin them with solder, then put it in with solder applied on the

connections or did you just leave the wire unstripped? What I did was I stripped the wire at least about an inch and insert into the

slot and bend the stripped part, then I solder the connections and cut the stripped part off. I didn't really have anything else to make

sure the wires stay in place, so I was wondering what methods you used.

Originally Posted by Kreeeee

Personally I did this to a 360 SE, making the RS switch activate the PS3 mode, so DP or LS is for the 360, and RS is used

for all other consoles.

How did you wire it to do that?

Thanks rtdzign! (And thanks to hikarutilmitt for the good intentions.) I just finished rewiring my TE and it's working awesome. I know

people have explained how to wire both the 360 & MC Cthulhu to the RJ-45, but having a diagram makes everything so

unambiguous.

Also, I thought I read that the MC Cthulhu had to be the Primary on the Imp, so I'm glad you made it clear that it doesn't. It's a bit

more convenient for me having the 360 Primary. Speaking of which...

Quieted Chaos said: ↑

How did you wire it to do that?

To have your SE/TE stick work like Kreeee's, you have to wire the MC Cthulhu to 2 D+ and 2 D- on the Imp, and wire the 360 PCB

to 1 D+ and 1 D- on the Imp. The pictured diagram in Step 2 does it the other way around, but notes that it can be switched. You'd

also have to connect the Imp's Guide point to the RS point on the 360 PCB, instead of connecting it the way it is in this guide.

Bomberman's guide has images that show how to do this with both the SE and TE.

DeepThoughts said: ↑

networkingyuppyRandoMadness.

gahrlingNeoEmpire.com

hikarutilmittWell-Known Member

rkmx52nerf gen moar

Quieted ChaosGuest

cablesMember


14 de 21 08-11-2012 20:27


Kreeeee, Feb 14, 2010 #23

Phreakazoid, Feb 15, 2010 #24

How did you determine which SNES lines (clock, latch, data) went to which cthulhu columns (A, B .. ,F)?

Diagrams halfway down.

http://www.shoryuken.com/showthread.php?t=162026&page=150

rkmx52 said: ↑

I have a question for the small slots in Cthulhu, when you soldered them to connections like A-H/1-9 or the columns for

RJ-45, what kind of soldering technique did you use. Did you strip the wires, tin them with solder, then put it in with solder

applied on the connections or did you just leave the wire unstripped? What I did was I stripped the wire at least about an

inch and insert into the slot and bend the stripped part, then I solder the connections and cut the stripped part off. I didn't

really have anything else to make sure the wires stay in place, so I was wondering what methods you used.

I used 26 gauge stranded and have 10 colors of wire used to help color code. I cut all of my wires to size first. I strip off maybe

5mm to a 1cm of wire, tin it, insert through hole, solder in, cut excess, then move on to the next hole. After all holes on MC cthulhu

are done, I then wrap it in a wire sleeve and use my multimeter to test what wire is what. The color codes I used help me figure out

what wire is what. I cut to proper size, strip tin then solder them to the xbox 360 pad. After each point bridged I do a second

continuity check to make sure it is right before moving on.

cables said: ↑

To have your SE/TE stick work like Kreeee's, you have to wire the MC Cthulhu to 2 D+ and 2 D- on the Imp, and wire the

360 PCB to 1 D+ and 1 D- on the Imp. The pictured diagram in Step 2 does it the other way around, but notes that it can be

switched. You'd also have to connect the Imp's Guide point to the RS point on the 360 PCB, instead of connecting it the way

it is in this guide. Bomberman's guide has images that show how to do this with both the SE and TE.

Correct.

Follow this tutorial but do the following differently:

1 - Swap D+/D- around on the imp so the 360 is on the "1" channel

2 - Wire the guide on the imp to the RS switch

It's much more elegant this way imo.

Finally thoroughly took a look at this, well done.. it's a pretty slick ass way to allow for only 1 port. Using the Imp as a passthrough

for the 2 required lines during MC functionality is a very sweet way to do things.

I likes that a LOT...I may be using that fairly soon. Good shit man!

Has everyone nominated this post?

RTDZIGN deserves serious recognition for this....it's really about time someone did this.

I can't stress enough how helpful abd well written this is, and can't help but think that I had some part in this.

I PM'd RT asking questions about the mod, prior to this posting...I guess he got sick of my questions and wrote this

VERY MUCH APPRECIATED!

Someone needs to STICKY this thread...but anyway...

NOM-NOM-NOMINATE!


KreeeeeXBox 3-Sticksty!

PhreakazoidWoof Woof.

MatskatCustom Arcade Sticks


15 de 21 08-11-2012 20:27

Matskat, Feb 15, 2010 #25



gamegirl79, Feb 20, 2010 #28

KILABEE, Feb 27, 2010 #29


Everyone....do it!

Matskat said: ↑

I PM'd RT asking questions about the mod, prior to this posting...I guess he got sick of my questions and wrote this

*Chuckles* If I was going to answer you I figure I might as well do it right and do it for everyone.

If you look at Kyle's Sticky Read first tutorials/ thread in the tutorials section, he actually listed it there. He made a tutorials sticky

because there where too many stickies to the point where the first page was more than half stickies.

Yeah a lot of people kept asking about this on the forums, and I recently sold networkingyuppy some ethernet hacked cables and

was worried he might hook it up wrong. It was something I've wanted to do for a while so having these folks asking on how to do it

prompted me to write it.

Updated with info for DPDT switch option if you do not want to use an Imp.

Thank you so much for this guide. This is exactly what I've been looking for.

i have a few questions about the piggy back method.

1. i have a regular madcatz xbox pad do i have to solder the buttons and d pad to certain points on the MC cthulhu??

or do i just solder away and the board detects the points??

2. is it better to use the IMP or the DPDT switch method?

3.if you can can you put up what wire goes to what spot on the MC cthulhu.

thanks man!

1. Look to 3. For regular Madcatz tutorial look at Upas' Madcatz padhacking tutorial.. Instead of putting the button signals to the

button switches you solder those to the unlabeled points.

2. Reasons listed in first post. It is about whether or not you can drill a hole in your case to mount the switch.

3. Comes with MC Cthulhu. Any drawing I make would be too messy or too much work.

http://www.marcuspost.com/downloads/cthulhuwelcome.doc



gamegirl79Guest

KILABEEscrub magnet


16 de 21 08-11-2012 20:27

Gummo, Mar 8, 2010 #31

RichL, Mar 8, 2010 #32

rtdzign, Mar 8, 2010 #33

RichL, Mar 8, 2010 #34

Wouldn't wiring the 360 as primary on the imp cause you to have to hold down the guide button in order to play on ps2 (and any

other system that uses either the D or E line on the mc)?

I don't understand the significance of wiring the RJ-45 cable to the Imp at all.

Gummowned said: ↑

Wouldn't wiring the 360 as primary on the imp cause you to have to hold down the guide button in order to play on ps2 (and

any other system that uses either the D or E line on the mc)?

Yeap, that is why Cthulhu is recommended as primary unless you do 70%-90% of your gaming on xbox 360. You actually have to

press guide for any system that uses the Cthulhu.

RichL said: ↑

I don't understand the significance of wiring the RJ-45 cable to the Imp at all.

This is needed to allow USB to work. The D+ and D- lines are data lines for USB. If you want one USB cable port to work for 360

and PS3/PC, you need the imp or dpdt swtich to prevent data from both boards going to the system of choice at the same time.

If you notice the D+ and D- both come off the Cthulhu and and 360 pad. The imp chooses one set of data lines to be out put to the

console. The output of that goes to the RJ-45 cable. While both boards are on the output data. Imagine that the xbox D+D_ lines

speak English and the PS3 speaks Japanese to the console. If you don't separate them the system simultaneously gets english

and japanese letters for both those lines and the communcation makes no sense. Imp chooses one or the other.

rtdzign said: ↑

This is needed to allow USB to work. The D+ and D- lines are data lines for USB. If you want one USB cable port to work for

360 and PS3/PC, you need the imp or dpdt swtich to prevent data from both boards going to the system of choice at the

same time.

If you notice the D+ and D- both come off the Cthulhu and and 360 pad. The imp chooses one set of data lines to be out put

to the console. The output of that goes to the RJ-45 cable. While both boards are on the output data. Imagine that the xbox

D+D_ lines speak English and the PS3 speaks Japanese to the console. If you don't separate them the system

simultaneously gets english and japanese letters for both those lines and the communcation makes sense. Imp chooses one

or the other.

Oh all right. Thanks. I didn't install a Neutrik USB port on mine since when I did the RJ-45 mod I had a MC Cthulhu in there already

for 360/PS3. The RJ-45 was only for custom cables.


GummoCan We Mod It? Yes,

We Can!

RichL你和我rtdzign

Well-Known Member

RichL你和我


17 de 21 08-11-2012 20:27

Castigation, Mar 14, 2010 #35


Castigation, Mar 15, 2010 #37

Xrebellion, Mar 30, 2010 #38


Xrebellion, Mar 30, 2010 #40

eightballah, Apr 10, 2010 #41

Is there any reason why the VCC and Ground lines aren't wired to the IMP instead of the Cthulhu?

They wired in step 3. You might be do it either way since VCC are all have the same continuity and Common Ground does too.

But then for option b with a dpdt switch, it makes writing a tutorial more complicated, and I have not tested wiring the VCC to the

imp directly.

The reason I'm asking is that I'm trying to accomplish something similar. Only I didn't have room to fit a RJ45 connector to my

case so I went with CAT5 cable with a DIN connector at the end. Connecting the stick with that cable does absolutely nothing at the

moment, not even the USB ding and a failure. Connecting the Cthulhu with a USB cable however works just fine and everything

worked with the IMP before I rewired it to fit my new cable scheme. I guess I'll have to hook it up and bust out the multimeter.

I'm experiencing a similar problem. The usb cable connects the MC Cthulhu just fine, but the RJ-45 jack gives nothing, nor will it

hop over to 360 mode. After checking the continuity between the D+ , D- wires and the keyjack pinout, i have to say something

gets muddled somewhere around the imp

Usually if you can figure out how to take pictures with the macro on, people often will look over any wiring problems you may have.

Sometimes D+ and D- might be shorting each other out. Check all adjacent soldering spots for continuity with a multimeter. There

is a possibility that something is linked that should not.

rtdzign said: ↑

Usually if you can figure out how to take pictures with the macro on, people often will look over any wiring problems you

may have. Sometimes D+ and D- might be shorting each other out. Check all adjacent soldering spots for continuity with a

multimeter. There is a possibility that something is linked that should not.

Ok, i'm going to figure that out somehow. For the sake of helping others, should I reply info here, or onto the Main Cthulhu thread?

Does anyone have a picture of the finished product done cleanly in a TE? I'd like to see the best way to mount everything and

route the wires.

I just did wired up the guts by themselves and it worked but it looks like shit. I want to redo this this correctly, cleanly, in my TE.

CastigationS-Rank, Baby!


CastigationS-Rank, Baby!

XrebellionWell-Known Member


XrebellionWell-Known Member


18 de 21 08-11-2012 20:27

Casper0878, May 30, 2010 #42

jdm714, May 30, 2010 #43

rtdzign, May 30, 2010 #44

Casper0878, May 30, 2010 #45

Is there a better diagram of this picture?

Because you used the same color to represent the wires, and the way they blend, its kinda hard to distinguish exactly where the

wires are supposed to be hooked up to. Is there a better picture to illustrate this? for example, i can see that you used the ground

from the left directional button, but i cant tell if the top or bottom is the ground cause the wires are the same color

a picture like this would be cool:

as it clearly shows where everything goes


And where the wires go to?

They are in the Cthulhu Welcome Document.

I don't think it is effective to draw a clean diagram. I copied the welcome doc info because you should do it by looking at the list in

the doc rather than following a picture of criss crossed wires.

I also did not want to include 6 pictures of diagrams for the 6 (2005-2007 4716, 2008+4716, Retro, Fightpad, SE/TE, TE-s)

different Xbox 360 PCBs you can use, because you should already know how to padhack a pcb if you're attempting this, and there

are other tutorials written to do this.

Like I said, I suggest beginners to not attempt this. Finding grounds for a button is a pad hacking basic skill. That is why you buy a

multimeter to figure out what side is ground by doing a continuity check between known ground buttons.

jdm714 said: ↑


And where the wires go to?

They are in the Cthulhu Welcome Document.

Awesome!! Thanks, those pics help sooo much. and thanks rtdzign for the guide. now that my box is done, gonna be starting the

wiring process soon

eightballahMember

Casper0878Member



Casper0878Member


19 de 21 08-11-2012 20:27

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tatsumakix3, Jun 1, 2010 #46

rtdzign, Jun 1, 2010 #47

tatsumakix3, Jun 1, 2010 #48

FrakkinToaster, Jun 3, 2010 #49

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Very good work rtdzign !!

I did the same dual mod but with a madcatz 2007 4716 gamepad, and my problem is :

I can switch to Xbox360's mode on PC but not on Xbox360 system

every thing works fine on PC and the MC Cthulhu works fine too.

any idea please ? thanks in advance !!

tatsumakix3 said: ↑

Very good work rtdzign !!

I did the same dual mod but with a madcatz 2007 4716 gamepad, and my problem is :

I can switch to Xbox360's mode on PC but not on Xbox360 system

every thing works fine on PC and the MC Cthulhu works fine too.

any idea please ? thanks in advance !!

No idea. If I had to guess it may be the xbox. Try making a new USB cable without the breakaway thing if you already have the

stuff handy.

Thank you for the quick reply !!!

I'll try using another USB cable.

Will this work if the 360 PCB and Cthulhu are both wired to the buttons through a terminal strip, instead of the 360 PCB

piggybacking onto the Cthulhu? That's my current setup (with a DPDT switch).

Yes.

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