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Old 23 March 2019, 18:14   #1
tomywong
 
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SFC/SNES Controller is perfect for CD32

I just modded my SFC joypad. So, it can use for CD32. Keys mapping are same as cd32. It is very nice.
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Old 23 March 2019, 18:59   #2
DanyPPC
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I didn't understand.

Have you used a special chip for conversion ?
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Old 23 March 2019, 19:21   #3
Daedalus
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Yeah, looks like someone made a PIC converter chip or something similar, and then ground the part numbers off the chip out of paranoia. The same conversion can be done with two off-the-shelf logic chips - after all, that's all that's inside the CD32.
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Old 23 March 2019, 21:30   #4
tomywong
 
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Original have two TTL chips and with some resistors and capacitors. If I follow it to modify my SFC joypad, then it is trouble. So, I make a chip combine two TTL chips. And my chip no need any resistors and capacitors. The component inside SFC joypad is enough. Just don't remove any component from it.
 
Old 24 March 2019, 04:04   #5
breech
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Quote:
Originally Posted by tomywong View Post
Original have two TTL chips and with some resistors and capacitors. If I follow it to modify my SFC joypad, then it is trouble. So, I make a chip combine two TTL chips. And my chip no need any resistors and capacitors. The component inside SFC joypad is enough. Just don't remove any component from it.
Nice, but is there any reason you are not sharing your chip details and source?
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Old 24 March 2019, 04:21   #6
tomywong
 
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All the info and detail you can get from the web : http://gerdkautzmann.de/cd32gamepad/cd32gamepad.html
It has CD32 controller protocol there. My chip is PLD chip, not PIC.

Last edited by tomywong; 24 March 2019 at 04:27.
 
Old 01 August 2020, 22:17   #7
BippyM
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So I think I've figured out the chip used. Now I need some advice on programming it and what I need to get this going.

I hope to make this competent free.. Anyone able to point me in the right direction (so understand how the controllers work, down to writing the program for the pld
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