Jostick Help

[Ton80]

I an just a dumb nooB trying to build a mame cabinet, most everything so far has gone just as expected, however, I recently bought a control panel from an old arcade game called 'Kozmic Krooz'r' It consists of an 8 way trigger joystick, Looks IDENTICAL to a tron joystick, I couldnt wait to hook it up to my IPac, but I soon discovereed this isnt like a normal joystick, It has 21 Wires coming out of it.. I found the wire for the trigger and the ground for that, so I quickly got that working (and thought I was on my way). However I couldnt figure out the other 19 wires. After an exhastive search for this schematics for this thing, I finally found it. This still doesnt help me, as I am not sure how to wire it to the IPac (or OptiPac). Here is the pin layout, and suggestions or help would be much appreciated, can this even be hooked to my IPac? Do I need another interface for it? Or is it even possible? Here is the pinout:

Pin Function
1 +5V
2 --
3 Ground
4 --
5 CLR (dunno what this hooks to stands for Clear (duh))
6 --
7 Y0
8 Y1
9 Y2
10 Y3
11 Y4
12 Y5
13 Y6
14 Y7
15 --
16 X0
17 X1
18 X2
19 X3
20 X4
21 X5
22 X6
23 X7

Ive seen pictures of the tron joystick and it looks to be wired differenttly, this one actually has a little pcb on it and all. I can send you picture if that will help. Not sure what the CLR pin is for.
Also, the control panel has a spinner with down button, Can't get that to work either, but havent tried to much with that (that will be next, only 7 wires for it)

Thanks for any help

Dave
-a confused noob-

[u_rebelscum]

For those who didn't see this on the other forum:

It's an analog joystick, with 100k POTs, and the joystick A/D board part of the joystick.  The pins he listed is the binary output, 8 pins per axis looks like 8 bits to me.

According to mame's driver, the center is 0100 000, far up or left is something close to 0001 1110, and far down or right is 0110 0010.  The driver might not be perfect though.

The KLOV is wrong and says the joystick is 8-way.

A 10 meg pdf manual can be found at basementarcade . com/arcade/library/manuals/k/KozmikKroozr.pdf (intentionally not linked so the site doesn't get flooded with hundreds of uninterested downloads.)


One suggestion is wire directly to the 100K POTs, and not the pins, but I don't know if the POT needs to be disconnected from the circuit

Other question is I don't know much about IC chips.  The CLR pin is connected to the reset pin 2 and pin 12 (reset too?) of two 74393 IC chips, and to pin 11 of two MC14040 chips.  (actual circuit schematics can be found in manual)

[usedelectronics]

I don't think the stick uses pots, unless the one I have isn't the same as the rest...

It appears to be a inductive type pickup, rather than a pot/switch.

[u_rebelscum]

I don't think the stick uses pots, unless the one I have isn't the same as the rest...

It appears to be a inductive type pickup, rather than a pot/switch.

Possible, but the manual mentions POTs.  Let me find... ahh, page 138 of pdf, schematic lists "100k POT 1/8 watt, 2".  I think you have the same, because same page lists "10-40uH Coil, 2".  The POTs might just be for calibrating, though.

Either way (inductive vs POT), it's analog.


Since you have a different sig, how did you wire it to the PC, if you did?

[usedelectronics]

There are pots on the board near the coils. I assume they are for calibrating as well.
Unfortunatly, I havent had time to play with this joystick yet, So I don't have an answer for how to make it work...Sorry!

[grafixmonkey]

This sounds suspiciously like Happ's "49-Way Joystick" that's some weird combination of analog and digital;  digital, but with 7 digital positions per axis, making it act analog...   could this be it?

forgive me, I've never seen either an inductive-pickup joystick or the 49-way, but those 7 pins per axis plus power and button pins just made me think of it right away.  I do know that if it has pots, it only needs a power and ground, then one wire per axis and one wire per button.  Unless it does the analog - digital conversion on the joystick itself, which would be weird, but I guess it could do that.

[Ton80]

 UsedElectronics - thats exactly the control panel I've got, You need to get that hooked up to the pc.. =)

Dave

[u_rebelscum]

This sounds suspiciously like Happ's "49-Way Joystick" that's some weird combination of analog and digital;  digital, but with 7 digital positions per axis, making it act analog...   could this be it?

Nope.  Both the older sinistar and the newer atari/happs 49-way joysticks have 4 (four) pins per axis.

.... Unless it does the analog - digital conversion on the joystick itself, which would be weird, but I guess it could do that.

I think that's what it's doing.  

If you think about it, all analog joysticks are translated to digital at some point in PCs and mame games.  And all analog USB controllers are translated to digital format inside the controller since USB is digital.  Even many "gameport" analog controllers translate to digital to get around the 4 button limit of the "gameport standard" (they use the midi signal instead).  

Just that most arcade games do it in the main, daughter, or sound PCB.  I guess not with this controller.  [shrug]