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+// GameCube controller to USB adapter
+// Copyright (C) 2014 Florian Jung
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 3 as 
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+
+/* Setup:
+
+   lfuse: 0xe0
+   hfuse: 0xd9
+
+   attach a 12MHz quartz to the atmega8, using the appropriate XTAL pins.
+
+   connect avr.PD{2,3} over 68 Ohm to usb.DATA{+,-}
+   connect usb.DATA{+,-} over 3v6-Z-Diode ( ----|<---- ) to GND
+   connect usb.DATA- over 1.5kOhm to usb.Vcc
+   connect usb.GND to avr.GND.
+
+   supply 3.3V to the 3.3V line of the gamecube controller.
+   supply 5V to the 5V line of the gamecube controller.
+   connect the GND and SHIELD lines of the controller to the common GND.
+   connect the DATA line of the gamecube controller to the C5 pin.
+
+   !!! ensure that the PORTC has bit 0 cleared at any time. !!!
+   !!! otherwise, +5V is supplied to the pin; the gamecube  !!!
+   !!! controller, however, may shortcut the line down to   !!!
+   !!! GND at any time, leading to HARDWARE DAMAGE.         !!!
+*/
+
+