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73b5e29e02
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@624 ebee16cc-31ac-478f-84a7-5cbb03baadba
105 lines
4.1 KiB
C
105 lines
4.1 KiB
C
/**
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******************************************************************************
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*
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* @file pios_hmc5843.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* @brief HMC5843 functions header.
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PIOS_HMC5843_H
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#define PIOS_HMC5843_H
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/* BMP085 Addresses */
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#define PIOS_HMC5843_I2C_ADDR 0x3C
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#define PIOS_HMC5843_CONFIG_REG_A (uint8_t)0x00
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#define PIOS_HMC5843_CONFIG_REG_B (uint8_t)0x01
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#define PIOS_HMC5843_MODE_REG (uint8_t)0x02
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#define PIOS_HMC5843_DATAOUT_XMSB_REG 0x03
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#define PIOS_HMC5843_DATAOUT_XLSB_REG 0x04
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#define PIOS_HMC5843_DATAOUT_YMSB_REG 0x05
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#define PIOS_HMC5843_DATAOUT_YLSB_REG 0x06
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#define PIOS_HMC5843_DATAOUT_ZMSB_REG 0x07
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#define PIOS_HMC5843_DATAOUT_ZLSB_REG 0x08
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#define PIOS_HMC5843_DATAOUT_STATUS_REG 0x09
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#define PIOS_HMC5843_DATAOUT_IDA_REG 0x0A
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#define PIOS_HMC5843_DATAOUT_IDB_REG 0x0B
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#define PIOS_HMC5843_DATAOUT_IDC_REG 0x0C
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/* Output Data Rate */
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#define PIOS_HMC5843_ODR_05 0x00
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#define PIOS_HMC5843_ODR_1 0x04
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#define PIOS_HMC5843_ODR_2 0x08
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#define PIOS_HMC5843_ODR_5 0x0C
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#define PIOS_HMC5843_ODR_10 0x10
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#define PIOS_HMC5843_ODR_20 0x14
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#define PIOS_HMC5843_ODR_50 0x18
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/* Measure configuration */
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#define PIOS_HMC5843_MEASCONF_NORMAL 0x00
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#define PIOS_HMC5843_MEASCONF_BIAS_POS 0x01
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#define PIOS_HMC5843_MEASCONF_BIAS_NEG 0x02
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/* Gain settings */
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#define PIOS_HMC5843_GAIN_0_7 0x00
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#define PIOS_HMC5843_GAIN_1 0x20
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#define PIOS_HMC5843_GAIN_1_5 0x40
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#define PIOS_HMC5843_GAIN_2 0x60
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#define PIOS_HMC5843_GAIN_3_2 0x80
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#define PIOS_HMC5843_GAIN_3_8 0xA0
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#define PIOS_HMC5843_GAIN_4_5 0xC0
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#define PIOS_HMC5843_GAIN_6_5 0xE0
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/* Modes */
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#define PIOS_HMC5843_MODE_CONTINUOS 0x00
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#define PIOS_HMC5843_MODE_SINGLE 0x01
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#define PIOS_HMC5843_MODE_IDLE 0x02
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#define PIOS_HMC5843_MODE_SLEEP 0x02
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/* Sensitivity Conversion Values */
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#define PIOS_HMC5843_Sensitivity_0_7Ga 1602 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_1Ga 1300 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_1_5Ga 970 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_2Ga 780 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_3_2Ga 530 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_3_8Ga 460 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_4_5Ga 390 // LSB/Ga
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#define PIOS_HMC5843_Sensitivity_6_5Ga 280 // LSB/Ga --> NOT RECOMMENDED
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/* Global Types */
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typedef struct {
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uint8_t M_ODR; /* OUTPUT DATA RATE --> here below the relative define (See datasheet page 11 for more details) */
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uint8_t Meas_Conf; /* Measurement Configuration,: Normal, positive bias, or negative bias --> here below the relative define */
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uint8_t Gain; /* Gain Configuration, select the full scale --> here below the relative define (See datasheet page 11 for more details) */
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uint8_t Mode;
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} PIOS_HMC5843_ConfigTypeDef;
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/* Global Variables */
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/* Public Functions */
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extern void PIOS_HMC5843_Init(void);
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extern void PIOS_HMC5843_Config(PIOS_HMC5843_ConfigTypeDef *HMC5843_Config_Struct);
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extern void PIOS_HMC5843_ReadMag(int16_t *out);
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extern void PIOS_HMC5843_ReadID(uint8_t *out);
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extern int32_t PIOS_HMC5843_Read(uint8_t address, uint8_t *buffer, uint8_t len);
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extern int32_t PIOS_HMC5843_Write(uint8_t address, uint8_t buffer);
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#endif /* PIOS_HMC5843_H */
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