The CD32 Gamepad is one of the worst controll devices I ever saw. When
playing CD32 game I usually gets into troubles cause the left handed joystick
replacement thing turns around and stops to work.
There is a good CD32 Gamepad replacement available from CompetitionPro but it has the same disadvantage like any other Gamepads:
They are all designed for left-handers !
Cause I am a right-handed person, I would prefer to controll the movement of a game character or spaceship with my right hand. Pressing the fire button does not need much accuracy, it could be done by the left hand.
I decided to find out, if a normal joystick could be transformed into a CD32 compatible joystick with all its extra buttons. Unfortunately there was not any documentation about the CD32 Gamepad available and re-engineeering turned out to be more difficult than expected.
During a discussion on www.amiga-news.de Jens Schönfeld gave me a hand drawn schematic and told me some details about the CD32 Gamepad. He had done some re-engineering to make his new Catweazle MK4 (www.ami.ga ) more CD32 compatible for emulators like UAE.
Here is the documentation I have made out of all this information.There ar different CD32 Gampad out there, they have some minor changes, to suppress spikes or wrong signals. The Schematic is still missing some capazitators, but it should work the way it is drawn.
What is Missing ?
Some capazitators are missing in the schematic, every chip should have a blocking capazitator.
I have still not checked evrything.