IJK interface diagrams.

This is the right place to discuss on how to implement hardware vsync, adding a VIA or AY chipset, puting multiple roms, or how to design a new flash expansion card.
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kenneth
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Re: IJK interface diagrams.

Post by kenneth »

Image
An other version
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HigashiJun
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Re: IJK interface diagrams.

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kenneth wrote: Mon Oct 25, 2021 12:33 pm Image
An other version
So cool and small !

Good job.

Do you plan to release it ?
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kenneth
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Re: IJK interface diagrams.

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I am writing the tutorial. :wink:
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Re: IJK interface diagrams.

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8)
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kenneth
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Re: IJK interface diagrams.

Post by kenneth »

the file is too big (4,7Mb) :evil:
I received "http error"
Last edited by kenneth on Sun Oct 31, 2021 7:13 am, edited 1 time in total.
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kenneth
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Re: IJK interface diagrams.

Post by kenneth »

The diagram
Image
The printer port
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Inside
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HigashiJun
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Re: IJK interface diagrams.

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It is quite crowded in that little connector...
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Dbug
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Re: IJK interface diagrams.

Post by Dbug »

Nice, thanks for the diagrams!

Btw, just published this video, it's not directly Oric related but the result works also on the Oric, so if you are looking for a decent "arcade quality" stick at a bargain price (Got that one at $12 + shipping) to play your Oric games, that would work just fine!

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kenneth
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Re: IJK interface diagrams.

Post by kenneth »

Interesting!
The jordanian joystick has real switches (0 ohm), while those we currently see are with carbon switches (200 ohm approx), I tried to modify a clone of CNES controller (Aliexpress store), the conductive rubber switches are covered with aluminum foil, and it only works with the old IJK interface because it requires amplification with transistors, otherwise, we detect all the keys and SELECT and START that activate the opposite directions at the same time.

Pink color; diodes for SELECT and START
Red: cut
Yellow: DB9 pin number

Image

The result

Image


the tutorial for StingyFlex
http://retrowiki.es/download/file.php?id=200025569
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Dbug
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Re: IJK interface diagrams.

Post by Dbug »

I did not even know there was such things as carbon switches Oo.

Somebody suggested that I use the +5v in the Atari connector to add an auto-fire on some of the other buttons, and use the two other buttons to select the auto-fire speed :)
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Re: IJK interface diagrams.

Post by jbperin »

kenneth wrote: Sun Oct 31, 2021 2:36 pm I tried to modify a clone of CNES controller (Aliexpress store),
The result
This is crazy !! :D :D so crazy !!
Dbug wrote: Sun Oct 31, 2021 7:35 am just published this video
Nice video.
Things look so simple when presented that way .. :)
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kenneth
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Re: IJK interface diagrams.

Post by kenneth »

Dbug wrote: Sun Aug 15, 2021 8:35 am What about soldering TWO cables, one for the IJK joystick, one for the PASE joystick, depending of the game you use one or the other, and you don't have to plug/unplug the connector (which could cause long term problems with the solders on the motherboard I guess)
I tried this:
Pase/Ijk left-right compatible without unplug.
Test version.
Image

The little black box is the "final package" :mrgreen:

Image
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Symoon
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Re: IJK interface diagrams.

Post by Symoon »

It's really nice looking, and another excellent piece of hardware. You hardware guys are amazing.
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jbperin
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Re: IJK interface diagrams.

Post by jbperin »

Waou !! :shock: :shock: :shock:

This really makes think of a Battle Zone For Oric because the arcade version had two joysticks !!

Does anyone know if this could be used in this type of game source ?
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Re: IJK interface diagrams.

Post by Chema »

Symoon wrote: Tue Nov 16, 2021 9:29 pm It's really nice looking, and another excellent piece of hardware. You hardware guys are amazing.
Totally agree!
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