WiiNunchuckDefs.h

00001 /*
00002 * WiiNunchuckReader. A program allowing the output of one or two
00003 * Wii Nunchucks to be read via I2C and decoded for use, using the mbed
00004 * microcontroller and its associated libraries.
00005 *
00006 * Copyright (C) <2009> Petras Saduikis <petras@petras.co.uk>
00007 *
00008 * This file is part of WiiNunchuckReader.
00009 *
00010 * WiiNunchuckReader is free software: you can redistribute it and/or modify
00011 * it under the terms of the GNU General Public License as published by
00012 * the Free Software Foundation, either version 3 of the License, or
00013 * (at your option) any later version.
00014 *
00015 * WiiNunchuckReader is distributed in the hope that it will be useful,
00016 * but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018 * GNU General Public License for more details.
00019 *
00020 * You should have received a copy of the GNU General Public License
00021 * along with WiiNunchuckReader.  If not, see <http://www.gnu.org/licenses/>.
00022 */
00023 
00024 #ifndef SNATCH59_WIINUNCHUCKDEFS_H
00025 #define SNATCH59_WIINUNCHUCKDEFS_H
00026 
00027 // I2C
00028 #define NUNCHUCK_ADDR     0xA4  // I2C library doesn't right shift the address, so provided shifted
00029 #define NUNCHUCK_REGADDR  0x40  // relevant register address
00030 #define NUNCHUCK_READLEN  0x06  // always read this many bytes back
00031 
00032 // received byte position
00033 #define JOY_X      0
00034 #define JOY_Y      1
00035 #define ACCEL_X    2
00036 #define ACCEL_Y    3
00037 #define ACCEL_Z    4
00038 #define ADDITIONAL 5
00039 
00040 // bitmasks for addition info byte
00041 #define MASK_CZ      0x03
00042 #define MASK_ACCLX1  0x04
00043 #define MASK_ACCLX2  0x08
00044 #define MASK_ACCLY1  0x10
00045 #define MASK_ACCLY2  0x20
00046 #define MASK_ACCLZ1  0x40
00047 #define MASK_ACCLZ2  0x80
00048 
00049 // timing
00050 #define I2C_READ_DELAY  0.01
00051 
00052 // I2C status
00053 #define I2C_OK        0    // zero on success (ACK), non-zero on fail (NACK) for read or write
00054 
00055 #endif