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#pragma once
//Some details thanks to AdaFruit library for the HMC5883 magnentometer/compass written by Kevin Townsend for Adafruit Industries.
//I2C ADDRESS / BITS
//I2C Address 8 - bit read address 0x3D
// 8 - bit write address 0x3C
#define HMC5883_ADDRESS_MAG (0x3C >> 1) // 0011110x
//REGISTERS
typedef enum
{
HMC5883_REGISTER_MAG_CRA_REG_M = 0x00,
HMC5883_REGISTER_MAG_CRB_REG_M = 0x01,
HMC5883_REGISTER_MAG_MR_REG_M = 0x02,
HMC5883_REGISTER_MAG_OUT_X_H_M = 0x03,
HMC5883_REGISTER_MAG_OUT_X_L_M = 0x04,
HMC5883_REGISTER_MAG_OUT_Z_H_M = 0x05,
HMC5883_REGISTER_MAG_OUT_Z_L_M = 0x06,
HMC5883_REGISTER_MAG_OUT_Y_H_M = 0x07,
HMC5883_REGISTER_MAG_OUT_Y_L_M = 0x08,
HMC5883_REGISTER_MAG_SR_REG_Mg = 0x09,
HMC5883_REGISTER_MAG_IRA_REG_M = 0x0A,
HMC5883_REGISTER_MAG_IRB_REG_M = 0x0B,
HMC5883_REGISTER_MAG_IRC_REG_M = 0x0C,
HMC5883_REGISTER_MAG_TEMP_OUT_H_M = 0x31,
HMC5883_REGISTER_MAG_TEMP_OUT_L_M = 0x32
} hmc5883MagRegisters_t;
/* from the data sheet
00 Configuration Register A Read/Write
01 Configuration Register B Read/Write
02 Mode Register Read/Write
03 Data Output X MSB Register Read
04 Data Output X LSB Register Read
05 Data Output Z MSB Register Read
06 Data Output Z LSB Register Read
07 Data Output Y MSB Register Read
08 Data Output Y LSB Register Read
09 Status Register Read
10 Identification Register A Read
11 Identification Register B Read
12 Identification Register C Read
Note if you read from register 3 and then read again, it will read from 4,5-8 before returning to 3 again.
*/
/*=========================================================================
MAGNETOMETER GAIN SETTINGS
-----------------------------------------------------------------------*/
typedef enum
{
HMC5883_MAGGAIN_1_3 = 0x20, // +/- 1.3
HMC5883_MAGGAIN_1_9 = 0x40, // +/- 1.9
HMC5883_MAGGAIN_2_5 = 0x60, // +/- 2.5
HMC5883_MAGGAIN_4_0 = 0x80, // +/- 4.0
HMC5883_MAGGAIN_4_7 = 0xA0, // +/- 4.7
HMC5883_MAGGAIN_5_6 = 0xC0, // +/- 5.6
HMC5883_MAGGAIN_8_1 = 0xE0 // +/- 8.1
} hmc5883MagGain;
/*=========================================================================*/