[quote name='patters']Since nobody seems to have listed the actual pin outs on the gameboy units - here is my diagram. I've successfully put a micro-style link plug on an F2A USB linker and can confirm it works fine:
EDIT - Ah, seen Troz's post above. oops. I think it matches up so that's good.
EDIT2 - Hmm, it doesn't seem to match so I'm not sure Troz's diagram is correct. His info earlier in the thread certainly wasn't because I tried wiring it like that and it didn't work. Mine is definitely tested working, and what I'm describing here are the actual sockets on the Gameboy units, not some particular brand of cable. I managed to get the information from here but in my diagram I've labelled what each pin does rather than just showing an equivalence:
http://www.gamesx.com/wiki/doku.php?do=show&id=schematics%3Agbmtogba[/quote]
My testing indicates that TROZ's pinout earlier in the thread might be accurate.
So I have a Micro Micro 2 player cable that I am butchering. I have been looking for the actual pinouts of the Micro for quite a while. ( this forum is the only one with any real info) Anyway, my interest is not in connecting to a GBA or GC or anything, rather I'm trying to make a Micro addon that was originally for the GBA. (
http://www.pixelproc.net/altivario.html )
My problem has been identifying the equivalent pinouts on the GBM. I just turned on my Micro and DMM and I am getting +3.3 V from pin 2 to 7 on Patter's drawing above. I.E. Pin 2 = GND, Pin 7 = 3.3V. This indicates to me that either the micro is holding SCLK high until it is pulled low at which point it would turn on 3.3 V at pin 3, or that the above pinout is incorrect. Ok, I just checked pins 3 to 6 as well, they all read 3.3 V relative to pin 2. I presume the GMB is waiting for one of the inputs to be pulled low before initiating communication, but I don't know much about serial comm.
On my GBM, at least, the Diagram above is incorrect since there would be no way for pin 3 (3.3V?) to be higher than pin 6 (GND) by 3.3 V, since I have measured 3.3 V on pin 6 relative to pin 2. Which means that on the above diagram pin 2 would either have to be at -3.3V or pin 3 would have to go up to 6.6V, which I highly doubt.
My operating assumption for Micro pinouts ( I dont have a GBA ):
(On a side note, I have been having trouble with pin orientation on some of the drawings I've seen. The way I understand it is the cable has the gold connector which is embedded into the back of the GBM: The Cable which looks like it would be 'Male' is actually Female. And the Micro itself has the Male connector. Is that what everyone understands?)
Also on the GBM - GBM 2 player cable, the only 2 pins for which I get continuity are pins 2 on both ends of the cable. None of the other pins are directly connected, which leads me to believe that pin 2 really is GND. ( The other pins 3-7 have 580 ohms between them and pins 2 and 5 on the opposite end (except for pin 6 which is unconnected to any of the pins on the opposite side.) )
I can't explain why Patter got the results he did. I wired my F2A usb linker up according to TROZ's original post last year, and I could never get it to work. (I have better test equipment at hand now) If I get the time I'll rewire my F2A usb link up according to Patters drawing and see how that goes.
I am waiting for a printed PCB to arrive for my main project. When that does I'll stuff it according to TROZ's pinout and if it works, I'd say that would be good evidence for a conclusive pinout on the Micro, since that'd be a direct pinout to electronics connection, without the link cables in between. The link cables obviously switch SIN and SOUT and I dont know which SCLK they use, but I think that may be the source of the confusion.
Jesse
Also, I thank everybody for contributing to this forum. I hope I can help out.