booyabeetz

Thanks again for making the gerbers for this board available. I finally went ahead and placed an order for some pcbs so I can have one of these nice programming setups for my collection. This will also let me free up my breadboards for other projects. Once complete I think I will start looking into making a 4CHi for my collection as well.

Looks great! I will probably build this jig as well if you ever get around to publishing the gerber file on your repo.

Awesome! I meant to suggest adding the component information to the silk screen but it looks like you were thinking the same. Good stuff!

I forgot to mention that I also started out building the regular/original ogx360 before I tried to make the 2-channel internal. The original is easier to make and so it's a better starting point if you do not have a lot of experience soldering etc. The 2CH/4CH internal variants also have components that are intended to be mounted using a hot air station or hot plate (such as the oscilator crystals and micro-usb connectors) whereas the regular ogx360 can be done entirely with a soldering iron. Just a heads up: https://github.com/Ryzee119/ogx360

This is kind of why I actually started with the 2-channel variant for this. The repo has the BOM with Digikey quick links etc. In any case most of the components overlap with the 4-channel variant so I guess you could infer the 4CH BOM that way: https://github.com/bolwire/OGX360I-2CH/tree/master/Hardware/OGX360I-2CH Main Personally I will probably wait for updates from Dtomcat18 before I order anything for the 4CH.

Nice! This clarifies a lot.

So the 2CH appears to be working great after I reversed the position for the LED on the mini board. I also mistakenly had the 12 pin JST cables reversed (from controller ports to ogx and ogx to xbox). Apparently wired controllers will still function as expected in bypass mode even with these cables reversed, however the wireless controllers will not work. In any case this means I can move on to the next project. The 4CH is on my todo list. I have the PCBs ready but I likely need to stock up on more components. I definitely cooked one or two ATMEGA32U4's from when I tried to burn the boot loader's with my bad breadboard setup...

Excellent! Great Work! In the meantime I had a look at the schematic for the 2CH and realized that I probably soldered the LED on the mini-board in the wrong orientation. Having flipped it around now gives the me the expected green light when the enable switch is flipped. Apparently I don't have enough experience to figure out which way a diode needs to point unless its explicitly spelled out on the pcb itself lol. I'll reconnect this back into the console in the morning to see if everything will work. Per the schematic it also appears that the extra 6 pin JST cable port is intended "to be used for future expansion board". I am not that good at reading schematics but I think it might be a method to daisy chain two of the 2CH units.

Thank you for the reminder. I just realized that I can view the schematic file in the repo. Maybe I will be able to figure it out.

I think I figured out how to make the JST jumper cable. It was not anything special like I had previously imagined. Right now with the 2CH hooked up to the console I am able to get it working in bypass (i.e. flipping the micro switch to allow wired controllers to communicate to the console). In this mode the wired controllers (as connected directly to the console) work as expected. Beyond that however I am not getting much luck in getting the wireless mode to work. I am testing with a known working 360 wireless receiver however the green "enabled" LED on the mini board with the microswitch does not turn on regardless of what I do. The wireless controllers are pairing properly to the wireless receiver however manipulating the buttons on the controller has no affect on the console (this is with the microswitch set to either position). To troubleshoot further I flashed Ryzee's debug firmware to the master Atmega32u4 and all the tests passed. This also confirms that the 2CH board can see and communicate properly with the wireless receiver. So at this point I am stuck and unsure of what to do... EDIT: I also have a 6 pin JST cable port on the 2CH that is not connected to anything. I have not yet figured out what this is for.

https://github.com/bolwire/OGX360I-2CH

Here is the latest I have for the 2CH. I am somewhat stuck at this point because I am not quite sure how these cables need to be made/wired up.

Ah that makes sense. I also heard that some people install the 2CHi & 4CHi with relays. Is that what you are doing as well?

I took another crack at setting up the clamshell socket for burning the bootloader and thankfully this time it works. Like suspected my wiring was way off because I relied on the pin markings on the clamshell for how I should land my wires. Next step for me will be to start soldering the smd components for the 2CH. In the meantime it dawned on me that I don't understand how the 4CH gets the ogx firmware uploaded to each chip. The 2CH has the 2 micro usb ports so I imagine the process is similar to how the regular ogx360 gets programmed. The 4CH however has no micro usb ports from what I can tell. In that case how does each chip get the ogx programming?

fantastic. I will probably make another attempt this week with the test socket I have. I have a zip lock bag full of parts ready to go for a ogx360i-2CH. I am sure your findings will help a lot when I start putting that together.