gc-forever - Gamecube/Wii Forums

Here are a couple of circuits that do "one shot pulses" that might be suitable for you.

http://www.discovercircuits.com/DJ-Circ ... c1shot.htm
http://www.discovercircuits.com/PDF-FILES/oneshots.pdf

I don't know if anything simpler can be designed. I haven't designed/worked with electronics since college, 20+ years ago.

What happens when you insert a Wii disc?

Does it give an error, or does it just ignore the disc?

Paul.str wrote:What happens when you insert a Wii disc?

Does it give an error, or does it just ignore the disc?

It will probably be a DRE. Or it will magically play wii games on your gamecube

and thanks gtmtnbiker, I'll take a look at those.

EDIT: its on a timer, so it would have to be made manual (don't want your game ejecting every few seconds). Honestly, a tactlie switch may work fine. I'll try to get all the parts to run testing asap.

EDIT: http://www.play-hookey.com/digital/expe ... ulser.html

^ according to this site, a push button or tactile will generate a couple pulses with even one quick push. Might not be a problem, but just in case, this article explains how to generate a manual pulse generator that only allows a single pulse to go through.

Wow.... So many questions have been brought up today that need answered now. I will do some more testing with this setup tomorrow before work again and try to get some video uploaded.

List of things to do:

1. Switch between pin 29 and ground/1.9v for eject
2. Try Wii game in drive... lol
3. Try backup GC games (D2lite drivechip is installed with the hacked firmware that allows backup loading)
4. Get the make of my Wii DVD drive for reference
5. Multidisc game compatibility

Anything else? I really don't wanna take my Wii apart again after this next time. ;P

Edit: Also I made some progress with the sundriver today after I discovered all of this by powering the sun on after the GC boots (you may have noticed that the GC does not autoboot games from the Wii drive, they need to be started manually). This got me thinking that the GC does some part of the boot sequence slower than the Wii. Its nothing that works yet (or maybe ever will) but its a step in the right direction hopefully.

Ashen, yes even our DVD emulator which is in WIP doesn't boot immediately - there's a delay that's done on purpose.

if this is fully working some time in the past i'd gladly swap my drive for a wii drive, just for lazyness
i mean, it ejects automatically!

Ok

So if the "contact bouncing" Tchay mentions won't be a problem, maybe something like this would work



Let's say the wire on the top left goes to pin 29, and the red and green leds are 2 separate lines. GND and +1.9V

When pressed, the switch will break the connection between GND and 29 and instead feed it with 1.9V.

This is something I made in like 15 mins so it's quite rough around the edges

Looks good man! Probably a better solution than the tact switch I ripped out of an old computer mouse today to use as a makeshift eject button. the "always on" leads connected to pin 29(wii) and gnd and the "button pushed" pin to 1.9v from power supply.

Did some testing for everyone this morning, its all in the video below but this is what I got:

(please excuse my sh@tty camera work) http://www.youtube.com/watch?v=sMeXMlDtaGE

The first thing you will probably notice is that the "disc insertion/disc eject" motor acts oddly (runs and runs until disc is put in, same when a disc is removed. It does eventually give up though). This is most likely a side effect of Pins 32, 31 and 30 being unhooked on the Wii side, These pins most likely help control disc in/out sensing.

The first game I boot in the video (SSBM) gets a random error. This is the first time I've seen this. Could have something to do with how I have eject wired up. Note that SSBM booted many other times for me without error.

Wii drivechips dont work for backup loading (at least my d2lite didnt) the GC gets an error when trying to mount the game. I dont have a spare GC modchip to wire up to try. Someone else can try if they do this mod (I'm not taking my Wii apart anymore) ;P

Wii games dont work... lol. I really didnt expect this to fly anyway.

Multidisc games SHOULD work as I ejected many discs in the middle of gameplay without error and on reinsertion they started right back up from the same spot. Should be the same for disc switching on a multidisc game.

Thats it for now I think. I'm going to be working with the sundriver again for the next few days. I will be ordering some Wii DVD drives though.

Is there any way thru homebrew on my Wii to identify my drive type? Need to find this out but I couldn't see anywhere physically on the drive that it says what type/revision the drive is.

wow realy good work. maybe the sundriver realy works on the gamecube. the wii drive seems to work with some games.

yamaharacer wrote:wow realy good work. maybe the sundriver realy works on the gamecube. the wii drive seems to work with some games.

All the games I've tried so far have worked flawlessly. Besides the error with SSBM I got this morning while recording. But I think i may have bumped something I shouldn't have. I'll post a list of games ive run later. Total is 13 I think.

My question now is what other Wii modchips allow HDD loading? I know the wode and sunkey fusion do. Do these chips NEED to have the wii drive attached to function properly? Or will they work without the DVD drive hooked up?

Also emu, what exactly does the prepatcher for swiss do to a GC iso? Would patching games with prepatcher help the sundriver at all?

Ashen, no prepatcher is only for swiss and not the sundriver.

I wonder if the Wode would work out as a better solution instead of the sundriver.

emu_kidid wrote:Ashen, no prepatcher is only for swiss and not the sundriver.

I know prepatcher is meant specifically for swiss. I was just wondering what exactly it modifies in the iso image. You see, I have the sundriver booting proper now by
Powering it on after the GC boots. But I now get the "cant read disc" error for every iso I try to load.

emu_kidid wrote:I wonder if the Wode would work out as a better solution instead of the sundriver.

I'm wondering the same thing now. Maybe the wode would emulate the dvd drive better. I need to know if it can run without it though. Or with just the daughterboard hooked up. Also I wonder if the wode guys would be willing to donate one for testing... I'm running out of money. Hehe

I have one I'll test out when my adapter thingy arrives

if this might work flawlessly it will be good for people playing backups on fullsize discs sind the GC motor will sooner or later give up on bigger discs. the wii drive is used to them, so....

As far as I've heard, the WODE works without a drive plugged in, but it doesn't support GC games using audio streaming.
This is because the WODE chip is missing some of the pin connections to the motherboard which are used for audio streaming.
I don't know if this is changed in later revisions though.

How many games use audio streaming anyway?

Ashen, it's possible that it's not booting up (the sundriver) because it's doing something strange like timing when to insert the ISO or something similar. does it error reading disc and fail to a black screen or is it unable to read disc in the "Press Start" screen?

unable to read disc in the "press start" screen. cube still functions no black screens or anything. I'll get some video up in a bit.

Edit: Also I think it may just have something to do with the way Wii drivechips work (incompatible with GC). I get similar errors when trying to load backup games on the Wii DVD drive using my D2lite when connected to the cube. I also tried wiring up my viper extreme to see if it would help at all with the sun/dvd drive. With the sun connected the GC wont even boot (sits at cobra "please wait screen"). With the DVD drive hooked up the GC boots to cobra and will boot normal bios but errors out as soon as a backup disc is inserted. If I boot direct from disc from the cobra bios screen I just get a black screen.

Ok, if you're using a Wii DVD drive, Cobra won't know how to patch this drive (cause it's not possible). That explains the error you see in the GC bios there.

The Wii drive modchips might be trying to determine region and failing - same as the Sundriver. I don't recall, is it possible to disable region forcing and for you to try the boot menu as something of a known region?

The Unable to read disc in the press start screen means that it's reading data ok, but the data is not what the GC expected, like if you were to put in a out-of-region disc or a wii disc/etc.

http://www.youtube.com/watch?v=Tb1yHNCTROs

I'll get the sun video up in a little bit.

Yeah that explains what I was thinking. but the other one, with the sundriver, are you getting a "Unable to read disc" in the smaller red text box on the Press Start screen? (and it brings up the question mark)

This:

http://www.youtube.com/watch?v=Pib31Wc_NP8

and then... AMAZINGLY.... THIS:

http://www.youtube.com/watch?v=GbxXJEhSzy4

dont get to excited though... after it loaded the bootloader i'm pretty sure it hung there.

nice write a game as the bootloader.

Its odd though don't you think? for one thing... Why did the sun loader come up as crazy taxi? and why did it boot THAT time but no others I've tried?

I think the Sundriver is trying to be smart here.. It looks to me like it fakes that it is crazy taxi and then waits a while, then becomes the loader. This would explain a lot.. hmm, time for a wode