9Axis IMU MPU9150 's library. This project is ported from this Arduino's project https://github.com/jrowberg/i2cdevlib/tree/master/Arduino/MPU9150. Connect pinName 27 to SCL, PinName 28 to SDA, GND to GND, and VOUT to VCC to try this library. The example is here

Dependencies:   ArduinoSerial I2Cdev

Dependents:   MPU9150_Example

Revision:
0:78ba160ba5f3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MPU9150_9Axis_MotionApps41.h	Mon Feb 01 15:54:51 2016 +0000
@@ -0,0 +1,822 @@
+#ifndef _MPU9150_9AXIS_MOTIONAPPS41_H_
+#define _MPU9150_9AXIS_MOTIONAPPS41_H_
+
+#include "I2Cdev.h"
+#include "helper_3dmath.h"
+
+// MotionApps 4.1 DMP implementation, built using the MPU-9150 "MotionFit" board
+#define MPU9150_INCLUDE_DMP_MOTIONAPPS41
+
+#include "MPU9150.h"
+
+// Tom Carpenter's conditional PROGMEM code
+// http://forum.arduino.cc/index.php?topic=129407.0
+#ifdef __AVR__
+    #include <avr/pgmspace.h>
+#else
+    // Teensy 3.0 library conditional PROGMEM code from Paul Stoffregen
+    #ifndef __PGMSPACE_H_
+        #define __PGMSPACE_H_ 1
+        #include <inttypes.h>
+
+        #define PROGMEM
+        #define PGM_P  const char *
+        #define PSTR(str) (str)
+        #define F(x) x
+
+        typedef void prog_void;
+        typedef char prog_char;
+        typedef unsigned char prog_uchar;
+        typedef int8_t prog_int8_t;
+        typedef uint8_t prog_uint8_t;
+        typedef int16_t prog_int16_t;
+        typedef uint16_t prog_uint16_t;
+        typedef int32_t prog_int32_t;
+        typedef uint32_t prog_uint32_t;
+
+        #define strcpy_P(dest, src) strcpy((dest), (src))
+        #define strcat_P(dest, src) strcat((dest), (src))
+        #define strcmp_P(a, b) strcmp((a), (b))
+
+        #define pgm_read_byte(addr) (*(const unsigned char *)(addr))
+        #define pgm_read_word(addr) (*(const unsigned short *)(addr))
+        #define pgm_read_dword(addr) (*(const unsigned long *)(addr))
+        #define pgm_read_float(addr) (*(const float *)(addr))
+
+        #define pgm_read_byte_near(addr) pgm_read_byte(addr)
+        #define pgm_read_word_near(addr) pgm_read_word(addr)
+        #define pgm_read_dword_near(addr) pgm_read_dword(addr)
+        #define pgm_read_float_near(addr) pgm_read_float(addr)
+        #define pgm_read_byte_far(addr) pgm_read_byte(addr)
+        #define pgm_read_word_far(addr) pgm_read_word(addr)
+        #define pgm_read_dword_far(addr) pgm_read_dword(addr)
+        #define pgm_read_float_far(addr) pgm_read_float(addr)
+    #endif
+#endif
+
+// NOTE! Enabling DEBUG adds about 3.3kB to the flash program size.
+// Debug output is now working even on ATMega328P MCUs (e.g. Arduino Uno)
+// after moving string constants to flash memory storage using the F()
+// compiler macro (Arduino IDE 1.0+ required).
+
+//#define DEBUG
+#ifdef DEBUG
+    #include "ArduinoSerial.h"
+    ArduinoSerial arduinoSerial;
+    #define DEBUG_PRINT(x) arduinoSerial.print(x)
+    #define DEBUG_PRINTF(x, y) arduinoSerial.print(x, y)
+    #define DEBUG_PRINTLN(x) arduinoSerial.println(x)
+    #define DEBUG_PRINTLNF(x, y) arduinoSerial.println(x, y)
+#else
+    #define DEBUG_PRINT(x)
+    #define DEBUG_PRINTF(x, y)
+    #define DEBUG_PRINTLN(x)
+    #define DEBUG_PRINTLNF(x, y)
+#endif
+
+#define MPU9150_DMP_CODE_SIZE       1962    // dmpMemory[]
+#define MPU9150_DMP_CONFIG_SIZE     232     // dmpConfig[]
+#define MPU9150_DMP_UPDATES_SIZE    140     // dmpUpdates[]
+
+/* ================================================================================================ *
+ | Default MotionApps v4.1 48-byte FIFO packet structure:                                           |
+ |                                                                                                  |
+ | [QUAT W][      ][QUAT X][      ][QUAT Y][      ][QUAT Z][      ][GYRO X][      ][GYRO Y][      ] |
+ |   0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  |
+ |                                                                                                  |
+ | [GYRO Z][      ][MAG X ][MAG Y ][MAG Z ][ACC X ][      ][ACC Y ][      ][ACC Z ][      ][      ] |
+ |  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  |
+ * ================================================================================================ */
+
+// this block of memory gets written to the MPU on start-up, and it seems
+// to be volatile memory, so it has to be done each time (it only takes ~1
+// second though)
+const prog_uchar dmpMemory[MPU9150_DMP_CODE_SIZE] PROGMEM = {
+    // bank 0, 256 bytes
+    0xFB, 0x00, 0x00, 0x3E, 0x00, 0x0B, 0x00, 0x36, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x00,
+    0x00, 0x65, 0x00, 0x54, 0xFF, 0xEF, 0x00, 0x00, 0xFA, 0x80, 0x00, 0x0B, 0x12, 0x82, 0x00, 0x01,
+    0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x28, 0x00, 0x00, 0xFF, 0xFF, 0x45, 0x81, 0xFF, 0xFF, 0xFA, 0x72, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x03, 0xE8, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x7F, 0xFF, 0xFF, 0xFE, 0x80, 0x01,
+    0x00, 0x1B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x3E, 0x03, 0x30, 0x40, 0x00, 0x00, 0x00, 0x02, 0xCA, 0xE3, 0x09, 0x3E, 0x80, 0x00, 0x00,
+    0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00,
+    0x41, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x0B, 0x2A, 0x00, 0x00, 0x16, 0x55, 0x00, 0x00, 0x21, 0x82,
+    0xFD, 0x87, 0x26, 0x50, 0xFD, 0x80, 0x00, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x05, 0x80, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00,
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x6F, 0x00, 0x02, 0x65, 0x32, 0x00, 0x00, 0x5E, 0xC0,
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0xFB, 0x8C, 0x6F, 0x5D, 0xFD, 0x5D, 0x08, 0xD9, 0x00, 0x7C, 0x73, 0x3B, 0x00, 0x6C, 0x12, 0xCC,
+    0x32, 0x00, 0x13, 0x9D, 0x32, 0x00, 0xD0, 0xD6, 0x32, 0x00, 0x08, 0x00, 0x40, 0x00, 0x01, 0xF4,
+    0xFF, 0xE6, 0x80, 0x79, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0xD0, 0xD6, 0x00, 0x00, 0x27, 0x10,
+
+    // bank 1, 256 bytes
+    0xFB, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0xFA, 0x36, 0xFF, 0xBC, 0x30, 0x8E, 0x00, 0x05, 0xFB, 0xF0, 0xFF, 0xD9, 0x5B, 0xC8,
+    0xFF, 0xD0, 0x9A, 0xBE, 0x00, 0x00, 0x10, 0xA9, 0xFF, 0xF4, 0x1E, 0xB2, 0x00, 0xCE, 0xBB, 0xF7,
+    0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x02, 0x00, 0x02, 0x02, 0x00, 0x00, 0x0C,
+    0xFF, 0xC2, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0xCF, 0x80, 0x00, 0x40, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x14,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x03, 0x3F, 0x68, 0xB6, 0x79, 0x35, 0x28, 0xBC, 0xC6, 0x7E, 0xD1, 0x6C,
+    0x80, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB2, 0x6A, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0xF0, 0x00, 0x00, 0x00, 0x30,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x25, 0x4D, 0x00, 0x2F, 0x70, 0x6D, 0x00, 0x00, 0x05, 0xAE, 0x00, 0x0C, 0x02, 0xD0,
+
+    // bank 2, 256 bytes
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x65, 0x00, 0x54, 0xFF, 0xEF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x01, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x01, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x65, 0x00, 0x00, 0x00, 0x54, 0x00, 0x00, 0xFF, 0xEF, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x1B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
+    0x00, 0x1B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x47, 0x78, 0xA2,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+    // bank 3, 256 bytes
+    0xD8, 0xDC, 0xF4, 0xD8, 0xB9, 0xAB, 0xF3, 0xF8, 0xFA, 0xF1, 0xBA, 0xA2, 0xDE, 0xB2, 0xB8, 0xB4,
+    0xA8, 0x81, 0x98, 0xF7, 0x4A, 0x90, 0x7F, 0x91, 0x6A, 0xF3, 0xF9, 0xDB, 0xA8, 0xF9, 0xB0, 0xBA,
+    0xA0, 0x80, 0xF2, 0xCE, 0x81, 0xF3, 0xC2, 0xF1, 0xC1, 0xF2, 0xC3, 0xF3, 0xCC, 0xA2, 0xB2, 0x80,
+    0xF1, 0xC6, 0xD8, 0x80, 0xBA, 0xA7, 0xDF, 0xDF, 0xDF, 0xF2, 0xA7, 0xC3, 0xCB, 0xC5, 0xB6, 0xF0,
+    0x87, 0xA2, 0x94, 0x24, 0x48, 0x70, 0x3C, 0x95, 0x40, 0x68, 0x34, 0x58, 0x9B, 0x78, 0xA2, 0xF1,
+    0x83, 0x92, 0x2D, 0x55, 0x7D, 0xD8, 0xB1, 0xB4, 0xB8, 0xA1, 0xD0, 0x91, 0x80, 0xF2, 0x70, 0xF3,
+    0x70, 0xF2, 0x7C, 0x80, 0xA8, 0xF1, 0x01, 0xB0, 0x98, 0x87, 0xD9, 0x43, 0xD8, 0x86, 0xC9, 0x88,
+    0xBA, 0xA1, 0xF2, 0x0E, 0xB8, 0x97, 0x80, 0xF1, 0xA9, 0xDF, 0xDF, 0xDF, 0xAA, 0xDF, 0xDF, 0xDF,
+    0xF2, 0xAA, 0xC5, 0xCD, 0xC7, 0xA9, 0x0C, 0xC9, 0x2C, 0x97, 0x97, 0x97, 0x97, 0xF1, 0xA9, 0x89,
+    0x26, 0x46, 0x66, 0xB0, 0xB4, 0xBA, 0x80, 0xAC, 0xDE, 0xF2, 0xCA, 0xF1, 0xB2, 0x8C, 0x02, 0xA9,
+    0xB6, 0x98, 0x00, 0x89, 0x0E, 0x16, 0x1E, 0xB8, 0xA9, 0xB4, 0x99, 0x2C, 0x54, 0x7C, 0xB0, 0x8A,
+    0xA8, 0x96, 0x36, 0x56, 0x76, 0xF1, 0xB9, 0xAF, 0xB4, 0xB0, 0x83, 0xC0, 0xB8, 0xA8, 0x97, 0x11,
+    0xB1, 0x8F, 0x98, 0xB9, 0xAF, 0xF0, 0x24, 0x08, 0x44, 0x10, 0x64, 0x18, 0xF1, 0xA3, 0x29, 0x55,
+    0x7D, 0xAF, 0x83, 0xB5, 0x93, 0xF0, 0x00, 0x28, 0x50, 0xF5, 0xBA, 0xAD, 0x8F, 0x9F, 0x28, 0x54,
+    0x7C, 0xB9, 0xF1, 0xA3, 0x86, 0x9F, 0x61, 0xA6, 0xDA, 0xDE, 0xDF, 0xDB, 0xB2, 0xB6, 0x8E, 0x9D,
+    0xAE, 0xF5, 0x60, 0x68, 0x70, 0xB1, 0xB5, 0xF1, 0xDA, 0xA6, 0xDF, 0xD9, 0xA6, 0xFA, 0xA3, 0x86,
+
+    // bank 4, 256 bytes
+    0x96, 0xDB, 0x31, 0xA6, 0xD9, 0xF8, 0xDF, 0xBA, 0xA6, 0x8F, 0xC2, 0xC5, 0xC7, 0xB2, 0x8C, 0xC1,
+    0xB8, 0xA2, 0xDF, 0xDF, 0xDF, 0xA3, 0xDF, 0xDF, 0xDF, 0xD8, 0xD8, 0xF1, 0xB8, 0xA8, 0xB2, 0x86,
+    0xB4, 0x98, 0x0D, 0x35, 0x5D, 0xB8, 0xAA, 0x98, 0xB0, 0x87, 0x2D, 0x35, 0x3D, 0xB2, 0xB6, 0xBA,
+    0xAF, 0x8C, 0x96, 0x19, 0x8F, 0x9F, 0xA7, 0x0E, 0x16, 0x1E, 0xB4, 0x9A, 0xB8, 0xAA, 0x87, 0x2C,
+    0x54, 0x7C, 0xB9, 0xA3, 0xDE, 0xDF, 0xDF, 0xA3, 0xB1, 0x80, 0xF2, 0xC4, 0xCD, 0xC9, 0xF1, 0xB8,
+    0xA9, 0xB4, 0x99, 0x83, 0x0D, 0x35, 0x5D, 0x89, 0xB9, 0xA3, 0x2D, 0x55, 0x7D, 0xB5, 0x93, 0xA3,
+    0x0E, 0x16, 0x1E, 0xA9, 0x2C, 0x54, 0x7C, 0xB8, 0xB4, 0xB0, 0xF1, 0x97, 0x83, 0xA8, 0x11, 0x84,
+    0xA5, 0x09, 0x98, 0xA3, 0x83, 0xF0, 0xDA, 0x24, 0x08, 0x44, 0x10, 0x64, 0x18, 0xD8, 0xF1, 0xA5,
+    0x29, 0x55, 0x7D, 0xA5, 0x85, 0x95, 0x02, 0x1A, 0x2E, 0x3A, 0x56, 0x5A, 0x40, 0x48, 0xF9, 0xF3,
+    0xA3, 0xD9, 0xF8, 0xF0, 0x98, 0x83, 0x24, 0x08, 0x44, 0x10, 0x64, 0x18, 0x97, 0x82, 0xA8, 0xF1,
+    0x11, 0xF0, 0x98, 0xA2, 0x24, 0x08, 0x44, 0x10, 0x64, 0x18, 0xDA, 0xF3, 0xDE, 0xD8, 0x83, 0xA5,
+    0x94, 0x01, 0xD9, 0xA3, 0x02, 0xF1, 0xA2, 0xC3, 0xC5, 0xC7, 0xD8, 0xF1, 0x84, 0x92, 0xA2, 0x4D,
+    0xDA, 0x2A, 0xD8, 0x48, 0x69, 0xD9, 0x2A, 0xD8, 0x68, 0x55, 0xDA, 0x32, 0xD8, 0x50, 0x71, 0xD9,
+    0x32, 0xD8, 0x70, 0x5D, 0xDA, 0x3A, 0xD8, 0x58, 0x79, 0xD9, 0x3A, 0xD8, 0x78, 0x93, 0xA3, 0x4D,
+    0xDA, 0x2A, 0xD8, 0x48, 0x69, 0xD9, 0x2A, 0xD8, 0x68, 0x55, 0xDA, 0x32, 0xD8, 0x50, 0x71, 0xD9,
+    0x32, 0xD8, 0x70, 0x5D, 0xDA, 0x3A, 0xD8, 0x58, 0x79, 0xD9, 0x3A, 0xD8, 0x78, 0xA8, 0x8A, 0x9A,
+
+    // bank 5, 256 bytes
+    0xF0, 0x28, 0x50, 0x78, 0x9E, 0xF3, 0x88, 0x18, 0xF1, 0x9F, 0x1D, 0x98, 0xA8, 0xD9, 0x08, 0xD8,
+    0xC8, 0x9F, 0x12, 0x9E, 0xF3, 0x15, 0xA8, 0xDA, 0x12, 0x10, 0xD8, 0xF1, 0xAF, 0xC8, 0x97, 0x87,
+    0x34, 0xB5, 0xB9, 0x94, 0xA4, 0x21, 0xF3, 0xD9, 0x22, 0xD8, 0xF2, 0x2D, 0xF3, 0xD9, 0x2A, 0xD8,
+    0xF2, 0x35, 0xF3, 0xD9, 0x32, 0xD8, 0x81, 0xA4, 0x60, 0x60, 0x61, 0xD9, 0x61, 0xD8, 0x6C, 0x68,
+    0x69, 0xD9, 0x69, 0xD8, 0x74, 0x70, 0x71, 0xD9, 0x71, 0xD8, 0xB1, 0xA3, 0x84, 0x19, 0x3D, 0x5D,
+    0xA3, 0x83, 0x1A, 0x3E, 0x5E, 0x93, 0x10, 0x30, 0x81, 0x10, 0x11, 0xB8, 0xB0, 0xAF, 0x8F, 0x94,
+    0xF2, 0xDA, 0x3E, 0xD8, 0xB4, 0x9A, 0xA8, 0x87, 0x29, 0xDA, 0xF8, 0xD8, 0x87, 0x9A, 0x35, 0xDA,
+    0xF8, 0xD8, 0x87, 0x9A, 0x3D, 0xDA, 0xF8, 0xD8, 0xB1, 0xB9, 0xA4, 0x98, 0x85, 0x02, 0x2E, 0x56,
+    0xA5, 0x81, 0x00, 0x0C, 0x14, 0xA3, 0x97, 0xB0, 0x8A, 0xF1, 0x2D, 0xD9, 0x28, 0xD8, 0x4D, 0xD9,
+    0x48, 0xD8, 0x6D, 0xD9, 0x68, 0xD8, 0xB1, 0x84, 0x0D, 0xDA, 0x0E, 0xD8, 0xA3, 0x29, 0x83, 0xDA,
+    0x2C, 0x0E, 0xD8, 0xA3, 0x84, 0x49, 0x83, 0xDA, 0x2C, 0x4C, 0x0E, 0xD8, 0xB8, 0xB0, 0x97, 0x86,
+    0xA8, 0x31, 0x9B, 0x06, 0x99, 0x07, 0xAB, 0x97, 0x28, 0x88, 0x9B, 0xF0, 0x0C, 0x20, 0x14, 0x40,
+    0xB9, 0xA3, 0x8A, 0xC3, 0xC5, 0xC7, 0x9A, 0xA3, 0x28, 0x50, 0x78, 0xF1, 0xB5, 0x93, 0x01, 0xD9,
+    0xDF, 0xDF, 0xDF, 0xD8, 0xB8, 0xB4, 0xA8, 0x8C, 0x9C, 0xF0, 0x04, 0x28, 0x51, 0x79, 0x1D, 0x30,
+    0x14, 0x38, 0xB2, 0x82, 0xAB, 0xD0, 0x98, 0x2C, 0x50, 0x50, 0x78, 0x78, 0x9B, 0xF1, 0x1A, 0xB0,
+    0xF0, 0xB1, 0x83, 0x9C, 0xA8, 0x29, 0x51, 0x79, 0xB0, 0x8B, 0x29, 0x51, 0x79, 0xB1, 0x83, 0x24,
+
+    // bank 6, 256 bytes
+    0x70, 0x59, 0xB0, 0x8B, 0x20, 0x58, 0x71, 0xB1, 0x83, 0x44, 0x69, 0x38, 0xB0, 0x8B, 0x39, 0x40,
+    0x68, 0xB1, 0x83, 0x64, 0x48, 0x31, 0xB0, 0x8B, 0x30, 0x49, 0x60, 0xA5, 0x88, 0x20, 0x09, 0x71,
+    0x58, 0x44, 0x68, 0x11, 0x39, 0x64, 0x49, 0x30, 0x19, 0xF1, 0xAC, 0x00, 0x2C, 0x54, 0x7C, 0xF0,
+    0x8C, 0xA8, 0x04, 0x28, 0x50, 0x78, 0xF1, 0x88, 0x97, 0x26, 0xA8, 0x59, 0x98, 0xAC, 0x8C, 0x02,
+    0x26, 0x46, 0x66, 0xF0, 0x89, 0x9C, 0xA8, 0x29, 0x51, 0x79, 0x24, 0x70, 0x59, 0x44, 0x69, 0x38,
+    0x64, 0x48, 0x31, 0xA9, 0x88, 0x09, 0x20, 0x59, 0x70, 0xAB, 0x11, 0x38, 0x40, 0x69, 0xA8, 0x19,
+    0x31, 0x48, 0x60, 0x8C, 0xA8, 0x3C, 0x41, 0x5C, 0x20, 0x7C, 0x00, 0xF1, 0x87, 0x98, 0x19, 0x86,
+    0xA8, 0x6E, 0x76, 0x7E, 0xA9, 0x99, 0x88, 0x2D, 0x55, 0x7D, 0x9E, 0xB9, 0xA3, 0x8A, 0x22, 0x8A,
+    0x6E, 0x8A, 0x56, 0x8A, 0x5E, 0x9F, 0xB1, 0x83, 0x06, 0x26, 0x46, 0x66, 0x0E, 0x2E, 0x4E, 0x6E,
+    0x9D, 0xB8, 0xAD, 0x00, 0x2C, 0x54, 0x7C, 0xF2, 0xB1, 0x8C, 0xB4, 0x99, 0xB9, 0xA3, 0x2D, 0x55,
+    0x7D, 0x81, 0x91, 0xAC, 0x38, 0xAD, 0x3A, 0xB5, 0x83, 0x91, 0xAC, 0x2D, 0xD9, 0x28, 0xD8, 0x4D,
+    0xD9, 0x48, 0xD8, 0x6D, 0xD9, 0x68, 0xD8, 0x8C, 0x9D, 0xAE, 0x29, 0xD9, 0x04, 0xAE, 0xD8, 0x51,
+    0xD9, 0x04, 0xAE, 0xD8, 0x79, 0xD9, 0x04, 0xD8, 0x81, 0xF3, 0x9D, 0xAD, 0x00, 0x8D, 0xAE, 0x19,
+    0x81, 0xAD, 0xD9, 0x01, 0xD8, 0xF2, 0xAE, 0xDA, 0x26, 0xD8, 0x8E, 0x91, 0x29, 0x83, 0xA7, 0xD9,
+    0xAD, 0xAD, 0xAD, 0xAD, 0xF3, 0x2A, 0xD8, 0xD8, 0xF1, 0xB0, 0xAC, 0x89, 0x91, 0x3E, 0x5E, 0x76,
+    0xF3, 0xAC, 0x2E, 0x2E, 0xF1, 0xB1, 0x8C, 0x5A, 0x9C, 0xAC, 0x2C, 0x28, 0x28, 0x28, 0x9C, 0xAC,
+
+    // bank 7, 170 bytes (remainder)
+    0x30, 0x18, 0xA8, 0x98, 0x81, 0x28, 0x34, 0x3C, 0x97, 0x24, 0xA7, 0x28, 0x34, 0x3C, 0x9C, 0x24,
+    0xF2, 0xB0, 0x89, 0xAC, 0x91, 0x2C, 0x4C, 0x6C, 0x8A, 0x9B, 0x2D, 0xD9, 0xD8, 0xD8, 0x51, 0xD9,
+    0xD8, 0xD8, 0x79, 0xD9, 0xD8, 0xD8, 0xF1, 0x9E, 0x88, 0xA3, 0x31, 0xDA, 0xD8, 0xD8, 0x91, 0x2D,
+    0xD9, 0x28, 0xD8, 0x4D, 0xD9, 0x48, 0xD8, 0x6D, 0xD9, 0x68, 0xD8, 0xB1, 0x83, 0x93, 0x35, 0x3D,
+    0x80, 0x25, 0xDA, 0xD8, 0xD8, 0x85, 0x69, 0xDA, 0xD8, 0xD8, 0xB4, 0x93, 0x81, 0xA3, 0x28, 0x34,
+    0x3C, 0xF3, 0xAB, 0x8B, 0xA3, 0x91, 0xB6, 0x09, 0xB4, 0xD9, 0xAB, 0xDE, 0xB0, 0x87, 0x9C, 0xB9,
+    0xA3, 0xDD, 0xF1, 0xA3, 0xA3, 0xA3, 0xA3, 0x95, 0xF1, 0xA3, 0xA3, 0xA3, 0x9D, 0xF1, 0xA3, 0xA3,
+    0xA3, 0xA3, 0xF2, 0xA3, 0xB4, 0x90, 0x80, 0xF2, 0xA3, 0xA3, 0xA3, 0xA3, 0xA3, 0xA3, 0xA3, 0xA3,
+    0xA3, 0xA3, 0xB2, 0xA3, 0xA3, 0xA3, 0xA3, 0xA3, 0xA3, 0xB0, 0x87, 0xB5, 0x99, 0xF1, 0xA3, 0xA3,
+    0xA3, 0x98, 0xF1, 0xA3, 0xA3, 0xA3, 0xA3, 0x97, 0xA3, 0xA3, 0xA3, 0xA3, 0xF3, 0x9B, 0xA3, 0xA3,
+    0xDC, 0xB9, 0xA7, 0xF1, 0x26, 0x26, 0x26, 0xD8, 0xD8, 0xFF
+};
+
+const prog_uchar dmpConfig[MPU9150_DMP_CONFIG_SIZE] PROGMEM = {
+//  BANK    OFFSET  LENGTH  [DATA]
+    0x02,   0xEC,   0x04,   0x00, 0x47, 0x7D, 0x1A,   // ?
+    0x03,   0x82,   0x03,   0x4C, 0xCD, 0x6C,         // FCFG_1 inv_set_gyro_calibration
+    0x03,   0xB2,   0x03,   0x36, 0x56, 0x76,         // FCFG_3 inv_set_gyro_calibration
+    0x00,   0x68,   0x04,   0x02, 0xCA, 0xE3, 0x09,   // D_0_104 inv_set_gyro_calibration
+    0x01,   0x0C,   0x04,   0x00, 0x00, 0x00, 0x00,   // D_1_152 inv_set_accel_calibration
+    0x03,   0x86,   0x03,   0x0C, 0xC9, 0x2C,         // FCFG_2 inv_set_accel_calibration
+    0x03,   0x90,   0x03,   0x26, 0x46, 0x66,         //   (continued)...FCFG_2 inv_set_accel_calibration
+    0x00,   0x6C,   0x02,   0x40, 0x00,               // D_0_108 inv_set_accel_calibration
+
+    0x02,   0x40,   0x04,   0x00, 0x00, 0x00, 0x00,   // CPASS_MTX_00 inv_set_compass_calibration
+    0x02,   0x44,   0x04,   0x40, 0x00, 0x00, 0x00,   // CPASS_MTX_01
+    0x02,   0x48,   0x04,   0x00, 0x00, 0x00, 0x00,   // CPASS_MTX_02
+    0x02,   0x4C,   0x04,   0x40, 0x00, 0x00, 0x00,   // CPASS_MTX_10
+    0x02,   0x50,   0x04,   0x00, 0x00, 0x00, 0x00,   // CPASS_MTX_11
+    0x02,   0x54,   0x04,   0x00, 0x00, 0x00, 0x00,   // CPASS_MTX_12
+    0x02,   0x58,   0x04,   0x00, 0x00, 0x00, 0x00,   // CPASS_MTX_20
+    0x02,   0x5C,   0x04,   0x00, 0x00, 0x00, 0x00,   // CPASS_MTX_21
+    0x02,   0xBC,   0x04,   0xC0, 0x00, 0x00, 0x00,   // CPASS_MTX_22
+
+    0x01,   0xEC,   0x04,   0x00, 0x00, 0x40, 0x00,   // D_1_236 inv_apply_endian_accel
+    0x03,   0x86,   0x06,   0x0C, 0xC9, 0x2C, 0x97, 0x97, 0x97, // FCFG_2 inv_set_mpu_sensors
+    0x04,   0x22,   0x03,   0x0D, 0x35, 0x5D,         // CFG_MOTION_BIAS inv_turn_on_bias_from_no_motion
+    0x00,   0xA3,   0x01,   0x00,                     // ?
+    0x04,   0x29,   0x04,   0x87, 0x2D, 0x35, 0x3D,   // FCFG_5 inv_set_bias_update
+    0x07,   0x62,   0x05,   0xF1, 0x20, 0x28, 0x30, 0x38, // CFG_8 inv_send_quaternion
+    0x07,   0x9F,   0x01,   0x30,                     // CFG_16 inv_set_footer
+    0x07,   0x67,   0x01,   0x9A,                     // CFG_GYRO_SOURCE inv_send_gyro
+    0x07,   0x68,   0x04,   0xF1, 0x28, 0x30, 0x38,   // CFG_9 inv_send_gyro -> inv_construct3_fifo
+    0x07,   0x62,   0x05,   0xF1, 0x20, 0x28, 0x30, 0x38, // ?
+    0x02,   0x0C,   0x04,   0x00, 0x00, 0x00, 0x00,   // ?
+    0x07,   0x83,   0x06,   0xC2, 0xCA, 0xC4, 0xA3, 0xA3, 0xA3, // ?
+                 // SPECIAL 0x01 = enable interrupts
+    0x00,   0x00,   0x00,   0x01, // SET INT_ENABLE, SPECIAL INSTRUCTION
+    0x07,   0xA7,   0x01,   0xFE,                     // ?
+    0x07,   0x62,   0x05,   0xF1, 0x20, 0x28, 0x30, 0x38, // ?
+    0x07,   0x67,   0x01,   0x9A,                     // ?
+    0x07,   0x68,   0x04,   0xF1, 0x28, 0x30, 0x38,   // CFG_12 inv_send_accel -> inv_construct3_fifo
+    0x07,   0x8D,   0x04,   0xF1, 0x28, 0x30, 0x38,   // ??? CFG_12 inv_send_mag -> inv_construct3_fifo
+    0x02,   0x16,   0x02,   0x00, 0x03                // D_0_22 inv_set_fifo_rate
+
+    // This very last 0x01 WAS a 0x09, which drops the FIFO rate down to 20 Hz. 0x07 is 25 Hz,
+    // 0x01 is 100Hz. Going faster than 100Hz (0x00=200Hz) tends to result in very noisy data.
+    // DMP output frequency is calculated easily using this equation: (200Hz / (1 + value))
+
+    // It is important to make sure the host processor can keep up with reading and processing
+    // the FIFO output at the desired rate. Handling FIFO overflow cleanly is also a good idea.
+};
+
+const prog_uchar dmpUpdates[MPU9150_DMP_UPDATES_SIZE] PROGMEM = {
+    0x01,   0xB2,   0x02,   0xFF, 0xF5,
+    0x01,   0x90,   0x04,   0x0A, 0x0D, 0x97, 0xC0,
+    0x00,   0xA3,   0x01,   0x00,
+    0x04,   0x29,   0x04,   0x87, 0x2D, 0x35, 0x3D,
+    0x01,   0x6A,   0x02,   0x06, 0x00,
+    0x01,   0x60,   0x08,   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00,   0x60,   0x04,   0x40, 0x00, 0x00, 0x00,
+    0x02,   0x60,   0x0C,   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x01,   0x08,   0x02,   0x01, 0x20,
+    0x01,   0x0A,   0x02,   0x00, 0x4E,
+    0x01,   0x02,   0x02,   0xFE, 0xB3,
+    0x02,   0x6C,   0x04,   0x00, 0x00, 0x00, 0x00, // READ
+    0x02,   0x6C,   0x04,   0xFA, 0xFE, 0x00, 0x00,
+    0x02,   0x60,   0x0C,   0xFF, 0xFF, 0xCB, 0x4D, 0x00, 0x01, 0x08, 0xC1, 0xFF, 0xFF, 0xBC, 0x2C,
+    0x02,   0xF4,   0x04,   0x00, 0x00, 0x00, 0x00,
+    0x02,   0xF8,   0x04,   0x00, 0x00, 0x00, 0x00,
+    0x02,   0xFC,   0x04,   0x00, 0x00, 0x00, 0x00,
+    0x00,   0x60,   0x04,   0x40, 0x00, 0x00, 0x00,
+    0x00,   0x60,   0x04,   0x00, 0x40, 0x00, 0x00
+};
+
+uint8_t MPU9150::dmpInitialize() {
+    // reset device
+    DEBUG_PRINTLN(F("\n\nResetting MPU9150..."));
+    reset();
+    wait_ms(30); // wait after reset
+
+    // disable sleep mode
+    DEBUG_PRINTLN(F("Disabling sleep mode..."));
+    setSleepEnabled(false);
+
+    // get MPU product ID
+    DEBUG_PRINTLN(F("Getting product ID..."));
+    //uint8_t productID = 0; //getProductID();
+    DEBUG_PRINT(F("Product ID = "));
+    DEBUG_PRINT(productID);
+
+    // get MPU hardware revision
+    DEBUG_PRINTLN(F("Selecting user bank 16..."));
+    setMemoryBank(0x10, true, true);
+    DEBUG_PRINTLN(F("Selecting memory byte 6..."));
+    setMemoryStartAddress(0x06);
+    DEBUG_PRINTLN(F("Checking hardware revision..."));
+    uint8_t hwRevision = readMemoryByte();
+    DEBUG_PRINT(F("Revision @ user[16][6] = "));
+    DEBUG_PRINTLNF(hwRevision, HEX);
+    DEBUG_PRINTLN(F("Resetting memory bank selection to 0..."));
+    setMemoryBank(0, false, false);
+
+    // check OTP bank valid
+    DEBUG_PRINTLN(F("Reading OTP bank valid flag..."));
+    uint8_t otpValid = getOTPBankValid();
+    DEBUG_PRINT(F("OTP bank is "));
+    DEBUG_PRINTLN(otpValid ? F("valid!") : F("invalid!"));
+
+    // get X/Y/Z gyro offsets
+    DEBUG_PRINTLN(F("Reading gyro offset values..."));
+    int8_t xgOffset = getXGyroOffset();
+    int8_t ygOffset = getYGyroOffset();
+    int8_t zgOffset = getZGyroOffset();
+    DEBUG_PRINT(F("X gyro offset = "));
+    DEBUG_PRINTLN(xgOffset);
+    DEBUG_PRINT(F("Y gyro offset = "));
+    DEBUG_PRINTLN(ygOffset);
+    DEBUG_PRINT(F("Z gyro offset = "));
+    DEBUG_PRINTLN(zgOffset);
+
+    I2Cdev::readByte(devAddr, MPU9150_RA_USER_CTRL, buffer); // ?
+
+    DEBUG_PRINTLN(F("Enabling interrupt latch, clear on any read, AUX bypass enabled"));
+    I2Cdev::writeByte(devAddr, MPU9150_RA_INT_PIN_CFG, 0x32);
+
+    // enable MPU AUX I2C bypass mode
+    //DEBUG_PRINTLN(F("Enabling AUX I2C bypass mode..."));
+    //setI2CBypassEnabled(true);
+
+    DEBUG_PRINTLN(F("Setting magnetometer mode to power-down..."));
+    //mag -> setMode(0);
+    I2Cdev::writeByte(0x0E, 0x0A, 0x00);
+
+    DEBUG_PRINTLN(F("Setting magnetometer mode to fuse access..."));
+    //mag -> setMode(0x0F);
+    I2Cdev::writeByte(0x0E, 0x0A, 0x0F);
+
+    DEBUG_PRINTLN(F("Reading mag magnetometer factory calibration..."));
+    int8_t asax, asay, asaz;
+    //mag -> getAdjustment(&asax, &asay, &asaz);
+    I2Cdev::readBytes(0x0E, 0x10, 3, buffer);
+    asax = (int8_t)buffer[0];
+    asay = (int8_t)buffer[1];
+    asaz = (int8_t)buffer[2];
+    DEBUG_PRINT(F("Adjustment X/Y/Z = "));
+    DEBUG_PRINT(asax);
+    DEBUG_PRINT(F(" / "));
+    DEBUG_PRINT(asay);
+    DEBUG_PRINT(F(" / "));
+    DEBUG_PRINTLN(asaz);
+
+    DEBUG_PRINTLN(F("Setting magnetometer mode to power-down..."));
+    //mag -> setMode(0);
+    I2Cdev::writeByte(0x0E, 0x0A, 0x00);
+
+    // load DMP code into memory banks
+    DEBUG_PRINT(F("Writing DMP code to MPU memory banks ("));
+    DEBUG_PRINT(MPU9150_DMP_CODE_SIZE);
+    DEBUG_PRINTLN(F(" bytes)"));
+    if (writeProgMemoryBlock(dmpMemory, MPU9150_DMP_CODE_SIZE)) {
+        DEBUG_PRINTLN(F("Success! DMP code written and verified."));
+
+        DEBUG_PRINTLN(F("Configuring DMP and related settings..."));
+
+        // write DMP configuration
+        DEBUG_PRINT(F("Writing DMP configuration to MPU memory banks ("));
+        DEBUG_PRINT(MPU9150_DMP_CONFIG_SIZE);
+        DEBUG_PRINTLN(F(" bytes in config def)"));
+        if (writeProgDMPConfigurationSet(dmpConfig, MPU9150_DMP_CONFIG_SIZE)) {
+            DEBUG_PRINTLN(F("Success! DMP configuration written and verified."));
+
+            DEBUG_PRINTLN(F("Setting DMP and FIFO_OFLOW interrupts enabled..."));
+            setIntEnabled(0x12);
+
+            DEBUG_PRINTLN(F("Setting sample rate to 200Hz..."));
+            setRate(4); // 1khz / (1 + 4) = 200 Hz
+
+            DEBUG_PRINTLN(F("Setting clock source to Z Gyro..."));
+            setClockSource(MPU9150_CLOCK_PLL_ZGYRO);
+
+            DEBUG_PRINTLN(F("Setting DLPF bandwidth to 42Hz..."));
+            setDLPFMode(MPU9150_DLPF_BW_42);
+
+            DEBUG_PRINTLN(F("Setting external frame sync to TEMP_OUT_L[0]..."));
+            setExternalFrameSync(MPU9150_EXT_SYNC_TEMP_OUT_L);
+
+            DEBUG_PRINTLN(F("Setting gyro sensitivity to +/- 2000 deg/sec..."));
+            setFullScaleGyroRange(MPU9150_GYRO_FS_2000);
+
+            DEBUG_PRINTLN(F("Setting DMP configuration bytes (function unknown)..."));
+            setDMPConfig1(0x03);
+            setDMPConfig2(0x00);
+
+            DEBUG_PRINTLN(F("Clearing OTP Bank flag..."));
+            setOTPBankValid(false);
+
+            DEBUG_PRINTLN(F("Setting X/Y/Z gyro offsets to previous values..."));
+            setXGyroOffsetTC(xgOffset);
+            setYGyroOffsetTC(ygOffset);
+            setZGyroOffsetTC(zgOffset);
+
+            DEBUG_PRINTLN(F("Setting X/Y/Z gyro user offsets to zero..."));
+            setXGyroOffset(0);
+            setYGyroOffset(0);
+            setZGyroOffset(0);
+
+            DEBUG_PRINTLN(F("Writing final memory update 1/19 (function unknown)..."));
+            uint8_t dmpUpdate[16], j;
+            uint16_t pos = 0;
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Writing final memory update 2/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Resetting FIFO..."));
+            resetFIFO();
+
+            DEBUG_PRINTLN(F("Reading FIFO count..."));
+            uint8_t fifoCount = getFIFOCount();
+
+            DEBUG_PRINT(F("Current FIFO count="));
+            DEBUG_PRINTLN(fifoCount);
+            uint8_t fifoBuffer[128];
+            //getFIFOBytes(fifoBuffer, fifoCount);
+
+            DEBUG_PRINTLN(F("Writing final memory update 3/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Writing final memory update 4/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Disabling all standby flags..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_PWR_MGMT_2, 0x00);
+
+            DEBUG_PRINTLN(F("Setting accelerometer sensitivity to +/- 2g..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_ACCEL_CONFIG, 0x00);
+
+            DEBUG_PRINTLN(F("Setting motion detection threshold to 2..."));
+            setMotionDetectionThreshold(2);
+
+            DEBUG_PRINTLN(F("Setting zero-motion detection threshold to 156..."));
+            setZeroMotionDetectionThreshold(156);
+
+            DEBUG_PRINTLN(F("Setting motion detection duration to 80..."));
+            setMotionDetectionDuration(80);
+
+            DEBUG_PRINTLN(F("Setting zero-motion detection duration to 0..."));
+            setZeroMotionDetectionDuration(0);
+
+            DEBUG_PRINTLN(F("Setting AK8975 to single measurement mode..."));
+            //mag -> setMode(1);
+            I2Cdev::writeByte(0x0E, 0x0A, 0x01);
+
+            // setup AK8975 (0x0E) as Slave 0 in read mode
+            DEBUG_PRINTLN(F("Setting up AK8975 read slave 0..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV0_ADDR, 0x8E);
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV0_REG,  0x01);
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV0_CTRL, 0xDA);
+
+            // setup AK8975 (0x0E) as Slave 2 in write mode
+            DEBUG_PRINTLN(F("Setting up AK8975 write slave 2..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV2_ADDR, 0x0E);
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV2_REG,  0x0A);
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV2_CTRL, 0x81);
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV2_DO,   0x01);
+
+            // setup I2C timing/delay control
+            DEBUG_PRINTLN(F("Setting up slave access delay..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_SLV4_CTRL, 0x18);
+            I2Cdev::writeByte(0x68, MPU9150_RA_I2C_MST_DELAY_CTRL, 0x05);
+
+            // enable interrupts
+            DEBUG_PRINTLN(F("Enabling default interrupt behavior/no bypass..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_INT_PIN_CFG, 0x00);
+
+            // enable I2C master mode and reset DMP/FIFO
+            DEBUG_PRINTLN(F("Enabling I2C master mode..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_USER_CTRL, 0x20);
+            DEBUG_PRINTLN(F("Resetting FIFO..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_USER_CTRL, 0x24);
+            DEBUG_PRINTLN(F("Rewriting I2C master mode enabled because...I don't know"));
+            I2Cdev::writeByte(0x68, MPU9150_RA_USER_CTRL, 0x20);
+            DEBUG_PRINTLN(F("Enabling and resetting DMP/FIFO..."));
+            I2Cdev::writeByte(0x68, MPU9150_RA_USER_CTRL, 0xE8);
+
+            DEBUG_PRINTLN(F("Writing final memory update 5/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 6/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 7/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 8/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 9/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 10/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 11/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Reading final memory update 12/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            readMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            #ifdef DEBUG
+                DEBUG_PRINT(F("Read bytes: "));
+                for (j = 0; j < 4; j++) {
+                    DEBUG_PRINTF(dmpUpdate[3 + j], HEX);
+                    DEBUG_PRINT(" ");
+                }
+                DEBUG_PRINTLN("");
+            #endif
+
+            DEBUG_PRINTLN(F("Writing final memory update 13/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 14/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 15/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 16/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+            DEBUG_PRINTLN(F("Writing final memory update 17/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Waiting for FIRO count >= 46..."));
+            while ((fifoCount = getFIFOCount()) < 46);
+            DEBUG_PRINTLN(F("Reading FIFO..."));
+            getFIFOBytes(fifoBuffer, min(fifoCount, 128)); // safeguard only 128 bytes
+            DEBUG_PRINTLN(F("Reading interrupt status..."));
+            getIntStatus();
+
+            DEBUG_PRINTLN(F("Writing final memory update 18/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Waiting for FIRO count >= 48..."));
+            while ((fifoCount = getFIFOCount()) < 48);
+            DEBUG_PRINTLN(F("Reading FIFO..."));
+            getFIFOBytes(fifoBuffer, min(fifoCount, 128)); // safeguard only 128 bytes
+            DEBUG_PRINTLN(F("Reading interrupt status..."));
+            getIntStatus();
+            DEBUG_PRINTLN(F("Waiting for FIRO count >= 48..."));
+            while ((fifoCount = getFIFOCount()) < 48);
+            DEBUG_PRINTLN(F("Reading FIFO..."));
+            getFIFOBytes(fifoBuffer, min(fifoCount, 128)); // safeguard only 128 bytes
+            DEBUG_PRINTLN(F("Reading interrupt status..."));
+            getIntStatus();
+
+            DEBUG_PRINTLN(F("Writing final memory update 19/19 (function unknown)..."));
+            for (j = 0; j < 4 || j < dmpUpdate[2] + 3; j++, pos++) dmpUpdate[j] = pgm_read_byte(&dmpUpdates[pos]);
+            writeMemoryBlock(dmpUpdate + 3, dmpUpdate[2], dmpUpdate[0], dmpUpdate[1]);
+
+            DEBUG_PRINTLN(F("Disabling DMP (you turn it on later)..."));
+            setDMPEnabled(false);
+
+            DEBUG_PRINTLN(F("Setting up internal 48-byte (default) DMP packet buffer..."));
+            dmpPacketSize = 48;
+            /*if ((dmpPacketBuffer = (uint8_t *)malloc(42)) == 0) {
+                return 3; // TODO: proper error code for no memory
+            }*/
+
+            DEBUG_PRINTLN(F("Resetting FIFO and clearing INT status one last time..."));
+            resetFIFO();
+            getIntStatus();
+        } else {
+            DEBUG_PRINTLN(F("ERROR! DMP configuration verification failed."));
+            return 2; // configuration block loading failed
+        }
+    } else {
+        DEBUG_PRINTLN(F("ERROR! DMP code verification failed."));
+        return 1; // main binary block loading failed
+    }
+    return 0; // success
+}
+
+bool MPU9150::dmpPacketAvailable() {
+    return getFIFOCount() >= dmpGetFIFOPacketSize();
+}
+
+// uint8_t MPU9150::dmpSetFIFORate(uint8_t fifoRate);
+// uint8_t MPU9150::dmpGetFIFORate();
+// uint8_t MPU9150::dmpGetSampleStepSizeMS();
+// uint8_t MPU9150::dmpGetSampleFrequency();
+// int32_t MPU9150::dmpDecodeTemperature(int8_t tempReg);
+
+//uint8_t MPU9150::dmpRegisterFIFORateProcess(inv_obj_func func, int16_t priority);
+//uint8_t MPU9150::dmpUnregisterFIFORateProcess(inv_obj_func func);
+//uint8_t MPU9150::dmpRunFIFORateProcesses();
+
+// uint8_t MPU9150::dmpSendQuaternion(uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendGyro(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendAccel(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendLinearAccel(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendLinearAccelInWorld(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendControlData(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendSensorData(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendExternalSensorData(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendGravity(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendPacketNumber(uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendQuantizedAccel(uint_fast16_t elements, uint_fast16_t accuracy);
+// uint8_t MPU9150::dmpSendEIS(uint_fast16_t elements, uint_fast16_t accuracy);
+
+uint8_t MPU9150::dmpGetAccel(int32_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = ((packet[34] << 24) + (packet[35] << 16) + (packet[36] << 8) + packet[37]);
+    data[1] = ((packet[38] << 24) + (packet[39] << 16) + (packet[40] << 8) + packet[41]);
+    data[2] = ((packet[42] << 24) + (packet[43] << 16) + (packet[44] << 8) + packet[45]);
+    return 0;
+}
+uint8_t MPU9150::dmpGetAccel(int16_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = (packet[34] << 8) + packet[35];
+    data[1] = (packet[38] << 8) + packet[39];
+    data[2] = (packet[42] << 8) + packet[43];
+    return 0;
+}
+uint8_t MPU9150::dmpGetAccel(VectorInt16 *v, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    v -> x = (packet[34] << 8) + packet[35];
+    v -> y = (packet[38] << 8) + packet[39];
+    v -> z = (packet[42] << 8) + packet[43];
+    return 0;
+}
+uint8_t MPU9150::dmpGetQuaternion(int32_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = ((packet[0] << 24) + (packet[1] << 16) + (packet[2] << 8) + packet[3]);
+    data[1] = ((packet[4] << 24) + (packet[5] << 16) + (packet[6] << 8) + packet[7]);
+    data[2] = ((packet[8] << 24) + (packet[9] << 16) + (packet[10] << 8) + packet[11]);
+    data[3] = ((packet[12] << 24) + (packet[13] << 16) + (packet[14] << 8) + packet[15]);
+    return 0;
+}
+uint8_t MPU9150::dmpGetQuaternion(int16_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = ((packet[0] << 8) + packet[1]);
+    data[1] = ((packet[4] << 8) + packet[5]);
+    data[2] = ((packet[8] << 8) + packet[9]);
+    data[3] = ((packet[12] << 8) + packet[13]);
+    return 0;
+}
+uint8_t MPU9150::dmpGetQuaternion(Quaternion *q, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    int16_t qI[4];
+    uint8_t status = dmpGetQuaternion(qI, packet);
+    if (status == 0) {
+        q -> w = (float)qI[0] / 16384.0f;
+        q -> x = (float)qI[1] / 16384.0f;
+        q -> y = (float)qI[2] / 16384.0f;
+        q -> z = (float)qI[3] / 16384.0f;
+        return 0;
+    }
+    return status; // int16 return value, indicates error if this line is reached
+}
+// uint8_t MPU9150::dmpGet6AxisQuaternion(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetRelativeQuaternion(long *data, const uint8_t* packet);
+uint8_t MPU9150::dmpGetGyro(int32_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = ((packet[16] << 24) + (packet[17] << 16) + (packet[18] << 8) + packet[19]);
+    data[1] = ((packet[20] << 24) + (packet[21] << 16) + (packet[22] << 8) + packet[23]);
+    data[2] = ((packet[24] << 24) + (packet[25] << 16) + (packet[26] << 8) + packet[27]);
+    return 0;
+}
+uint8_t MPU9150::dmpGetGyro(int16_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = (packet[16] << 8) + packet[17];
+    data[1] = (packet[20] << 8) + packet[21];
+    data[2] = (packet[24] << 8) + packet[25];
+    return 0;
+}
+uint8_t MPU9150::dmpGetMag(int16_t *data, const uint8_t* packet) {
+    // TODO: accommodate different arrangements of sent data (ONLY default supported now)
+    if (packet == 0) packet = dmpPacketBuffer;
+    data[0] = (packet[28] << 8) + packet[29];
+    data[1] = (packet[30] << 8) + packet[31];
+    data[2] = (packet[32] << 8) + packet[33];
+    return 0;
+}
+// uint8_t MPU9150::dmpSetLinearAccelFilterCoefficient(float coef);
+// uint8_t MPU9150::dmpGetLinearAccel(long *data, const uint8_t* packet);
+uint8_t MPU9150::dmpGetLinearAccel(VectorInt16 *v, VectorInt16 *vRaw, VectorFloat *gravity) {
+    // get rid of the gravity component (+1g = +4096 in standard DMP FIFO packet)
+    v -> x = vRaw -> x - gravity -> x*4096;
+    v -> y = vRaw -> y - gravity -> y*4096;
+    v -> z = vRaw -> z - gravity -> z*4096;
+    return 0;
+}
+// uint8_t MPU9150::dmpGetLinearAccelInWorld(long *data, const uint8_t* packet);
+uint8_t MPU9150::dmpGetLinearAccelInWorld(VectorInt16 *v, VectorInt16 *vReal, Quaternion *q) {
+    // rotate measured 3D acceleration vector into original state
+    // frame of reference based on orientation quaternion
+    memcpy(v, vReal, sizeof(VectorInt16));
+    v -> rotate(q);
+    return 0;
+}
+// uint8_t MPU9150::dmpGetGyroAndAccelSensor(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetGyroSensor(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetControlData(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetTemperature(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetGravity(long *data, const uint8_t* packet);
+uint8_t MPU9150::dmpGetGravity(VectorFloat *v, Quaternion *q) {
+    v -> x = 2 * (q -> x*q -> z - q -> w*q -> y);
+    v -> y = 2 * (q -> w*q -> x + q -> y*q -> z);
+    v -> z = q -> w*q -> w - q -> x*q -> x - q -> y*q -> y + q -> z*q -> z;
+    return 0;
+}
+// uint8_t MPU9150::dmpGetUnquantizedAccel(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetQuantizedAccel(long *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetExternalSensorData(long *data, int size, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetEIS(long *data, const uint8_t* packet);
+
+uint8_t MPU9150::dmpGetEuler(float *data, Quaternion *q) {
+    data[0] = atan2(2*q -> x*q -> y - 2*q -> w*q -> z, 2*q -> w*q -> w + 2*q -> x*q -> x - 1);   // psi
+    data[1] = -asin(2*q -> x*q -> z + 2*q -> w*q -> y);                              // theta
+    data[2] = atan2(2*q -> y*q -> z - 2*q -> w*q -> x, 2*q -> w*q -> w + 2*q -> z*q -> z - 1);   // phi
+    return 0;
+}
+uint8_t MPU9150::dmpGetYawPitchRoll(float *data, Quaternion *q, VectorFloat *gravity) {
+    // yaw: (about Z axis)
+    data[0] = atan2(2*q -> x*q -> y - 2*q -> w*q -> z, 2*q -> w*q -> w + 2*q -> x*q -> x - 1);
+    // pitch: (nose up/down, about Y axis)
+    data[1] = atan(gravity -> x / sqrt(gravity -> y*gravity -> y + gravity -> z*gravity -> z));
+    // roll: (tilt left/right, about X axis)
+    data[2] = atan(gravity -> y / sqrt(gravity -> x*gravity -> x + gravity -> z*gravity -> z));
+    return 0;
+}
+
+// uint8_t MPU9150::dmpGetAccelFloat(float *data, const uint8_t* packet);
+// uint8_t MPU9150::dmpGetQuaternionFloat(float *data, const uint8_t* packet);
+
+uint8_t MPU9150::dmpProcessFIFOPacket(const unsigned char *dmpData) {
+    /*for (uint8_t k = 0; k < dmpPacketSize; k++) {
+        if (dmpData[k] < 0x10) Serial.print("0");
+        Serial.print(dmpData[k], HEX);
+        Serial.print(" ");
+    }
+    Serial.print("\n");*/
+    //Serial.println((uint16_t)dmpPacketBuffer);
+    return 0;
+}
+uint8_t MPU9150::dmpReadAndProcessFIFOPacket(uint8_t numPackets, uint8_t *processed) {
+    uint8_t status;
+    uint8_t buf[dmpPacketSize];
+    for (uint8_t i = 0; i < numPackets; i++) {
+        // read packet from FIFO
+        getFIFOBytes(buf, dmpPacketSize);
+
+        // process packet
+        if ((status = dmpProcessFIFOPacket(buf)) > 0) return status;
+
+        // increment external process count variable, if supplied
+        if (processed != 0) *processed++;
+    }
+    return 0;
+}
+
+// uint8_t MPU9150::dmpSetFIFOProcessedCallback(void (*func) (void));
+
+// uint8_t MPU9150::dmpInitFIFOParam();
+// uint8_t MPU9150::dmpCloseFIFO();
+// uint8_t MPU9150::dmpSetGyroDataSource(uint_fast8_t source);
+// uint8_t MPU9150::dmpDecodeQuantizedAccel();
+// uint32_t MPU9150::dmpGetGyroSumOfSquare();
+// uint32_t MPU9150::dmpGetAccelSumOfSquare();
+// void MPU9150::dmpOverrideQuaternion(long *q);
+uint16_t MPU9150::dmpGetFIFOPacketSize() {
+    return dmpPacketSize;
+}
+
+#endif /* _MPU9150_9AXIS_MOTIONAPPS41_H_ */
\ No newline at end of file