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did a NES Pad Hack... but need help (with PICs :) )
scorp.ius:
Hi!
Its not really an Arcade control. i wanted to use an old NES Pad on my PC... so i soldered a NES Pad to an USB Pad.
BUT: when i press "UP" on the NES Pad i get a "UP + B"
when i press "A" - i get a "A + LEFT"
just examples i dont know it for sure now, but pressing the digipad i get a direction an a button - the same with the buttons vice versa
the start and select buttons are working correct
the strange thing is: i startet with A and B only, and with only 3 wires soldered (A + B + one GND) it works for this two buttons correct.
question: what are those resistors(?) after the buttons and digicross for?
the first picture is the NES Pad - the second the USB Pad
NickG:
Those diodes are there to protect crosstalk between the inputs. They are supposed to ensure that a keypress only has one path to ground. You'll notice on the USB pad that the direction controls are grounded via pin 19, but the buttons are grounded via pin 20; so you need to separate the paths.
scorp.ius:
thanks for the fast reply :) :notworthy:
unfortunately i dont exactly know what you want me to do :dizzy:
could you please precise your answear?
EDIT: i think i have only ONE ground in the NES Pad, right? (the black wire that is connected the "start" buttons ground on the USB pad) so how could i seperate this one wire?
steveh:
why would you do such a thing?
http://www.retrousb.com/usb.html
you can get adapters, and kits to mod your controller right to usb. much better way of doing it.
I guess your way is more challenging. I can vouch for this company as i have purchased both kits fro my genesis controllers.
somunny:
--- Quote from: steveh on January 30, 2007, 12:12:02 pm ---why would you do such a thing?
--- End quote ---
The 'B' in BYOAC stands for 'build'. Granted, the products at retrousb are nice but some folks want to do it themselves.
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