Is there any way of making a 49-1 joystick function as a 8 way joystick?

Got a good idea on how to do it cleanly, and found PCB-mount 12-pin .156" female connectors, so I'll spin some boards and see what happens.

Finally got around to testing, and they seem to work fine.
Small central dead zone, clean 8-way operation, using only one TTL chip -- too bad the female 12-pin is so expensive...

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Pass through on the 12-pin .156" to power the adapter and the optos on the joystick, with an 6-pin .100" header for gnd + the 4 directions to hook up to a normal stick.

Pins are unlabeled, since what's up/down/right/left is dependent on which way the optical stick is oriented, and I'm not sure all games do it the same way so you might need to experiment in our own cab to get it hooked up right.
 
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I started the thread so I'm game!
I've got a Pikskin 621 AD that Im looking to pop some other 8-way joystick games in.
Let me know if I can be your test.
pm sent to you.


Maybe... I only have parts to build 10, so if someone wants to be the guinea pig, LMK...
 
I started the thread so I'm game!
I've got a Pikskin 621 AD that Im looking to pop some other 8-way joystick games in.
Let me know if I can be your test.
pm sent to you.

well i posted last so HA.

:) i'm in no rush so have at it shawn :)
 
Ok.
I just got Marks adaptors in the mail (Thanks again for the adaptors Mark) and am having one issue.
Where do I connect in the 6-pin .100 connection on the adaptor.
I believe I have the .156 pins connected properly, I'm just not sure how to tie in the 6-pin.
Here's a picture of the bottom of the 49-in-1 joystick with the adaptor attached to one of the Pigskin joysticks.
 

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Still scratching my head on where to connect the 6-pin .100 connector.
I know from what Mark has pmed me that pin 1 is the ground and based off of the joystick orientation that pins 3/4 are one direction and pins 5/6 are the other directions but where do I tap these into on the game?
 
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Ok.
So what I'm thinking is I'm tying into the connections on the .156 connection going to the joystick to get the directions, right?
 

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Ah...............
So I'm tying into the up, down, left, right directly from the jamma edge connector, right?
Do I have the .156 connections connected to the adaptor properly by the way too?

No... those are the inputs to the converter board from the 49-way....

You 3-6 need to go back to the JAMMA edge connector.
 
Ah...............
So I'm tying into the up, down, left, right directly from the jamma edge connector, right?
Do I have the .156 connections connected to the adaptor properly by the way too?

The joystick and adapter get power from the 12-pin .156.

There's places to solder power wires (+ and O) if you don't want to leave the 12-pin connected.
 
Having it connected is fine by me.
Just traced the wiring from the edge connector and it comes to the control panel connector going to the CP.
I'll keep you posted on progress.
Thanks again Mark. :)

The joystick and adapter get power from the 12-pin .156.

There's places to solder power wires (+ and O) if you don't want to leave the 12-pin connected.
 
Ok.
Got a chance to wire everything up yesterday and success!
Well...................... Sort of.
:p
Pin-6 - GND
Pin-5 - Key
Pin-4 - Up
Pin-3 - Down
Pin-2 - Right
Pin-1 - Left

After Mark mentioned to connect the up, down, left, right from the Jamma edge connector, I am getting the left and right directions working perfectly.
The problem that I'm having is that the up is functional, but the down is functioning as up as well.
I can get down to work, but I have to position the joystick to the up/right diagonal direction and down works sometimes.
I also tried switching the up and down directions around and got the same result.
Do you happen to have any suggestions of fixing the problem Mark or things I can try to get the down to function?
 
Is there an opto-test on Pigskin?

I'd expect there would be one -- I'd go through that and make sure all the optos are good. Since the adapter is 'dumb', it can't compensate for unexpected codes.

That said, each axis is driven from a one-hot decoder, so it shouldn't be possible to have both up and down triggered, unless you've got a short in your wiring -- if you soldered wires to the back instead of using crimp connectors, double check the soldering, and ohm out between up & down.
 
I'll see.
I'm assuming having all of the wiring hooked up that if I have the 8-way wired and try the opto-test through the pigskin game it should show the flat up, down, left, right, when I go through the test, right?
 
I'll see.
I'm assuming having all of the wiring hooked up that if I have the 8-way wired and try the opto-test through the pigskin game it should show the flat up, down, left, right, when I go through the test, right?

Pigskin should see the full 49-way... It should ignore the JAMMA control inputs and only look at what's coming in on the 12pins.
 
Ok.
I'll go through the opto's to make sure that their all good.
I'll also hook-up the other side to see if it is my wiring too.
Will keep you posted.
Thanks for the feedback.

Pigskin should see the full 49-way... It should ignore the JAMMA control inputs and only look at what's coming in on the 12pins.
 
Ok.
I've got all of the controls to work, but the up is very choppy.
The joystick has a little give to it and you have to gently move the joystick up to go up.
I'm happy with the result, but is there any way of making the up a little more solid?
 
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