bma180.h File Reference

Bosch BMA180 3-axis accelerometer driver.

This file contains functions for initializing and reading data from a Bosch BMA180 3-axis accelerometer.

Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>

Macros
#define	BMA180_DATA_RESOLUTION   (14)
#define	BMA180_SPI_MODE   (3)
#define	BMA180_TEMP_OFFSET   (-40) /* temperature sensor offset */
#define	BMA180_TWI_ADDR   (0x40)
#define	BMA180_CHIP_ID   (0x00) /* chip ID - always 0x03 */
	BMA180 Register Addresses. More...
#define	BMA180_CHIP_VERSION   (0x01) /* chip revision */
#define	BMA180_ACC_X_LSB   (0x02) /* X accel - LSB + new data */
#define	BMA180_ACC_X_MSB   (0x03) /* X accel - MSB */
#define	BMA180_ACC_Y_LSB   (0x04) /* Y accel - LSB + new data */
#define	BMA180_ACC_Y_MSB   (0x05) /* Y accel - MSB */
#define	BMA180_ACC_Z_LSB   (0x06) /* Z accel - LSB + new data */
#define	BMA180_ACC_Z_MSB   (0x07) /* Z accel - MSB */
#define	BMA180_TEMP   (0x08) /* temperature */
#define	BMA180_STATUS1   (0x09) /* device status register 1 */
#define	BMA180_STATUS2   (0x0a) /* device status register 2 */
#define	BMA180_STATUS3   (0x0b) /* device status register 3 */
#define	BMA180_STATUS4   (0x0c) /* device status register 4 */
#define	BMA180_CTRL0   (0x0d) /* device control register 0 */
#define	BMA180_CTRL1   (0x0e) /* device control register 1 */
#define	BMA180_CTRL2   (0x0f) /* device control register 2 */
#define	BMA180_RESET   (0x10) /* soft reset */
#define	BMA180_BW_TCS   (0x20) /* bandwidth & temp compensation */
	BMA180 Default Setting Register Addresses. More...
#define	BMA180_CTRL3   (0x21) /* device control register 3 */
#define	BMA180_CTRL4   (0x22) /* device control register 4 */
#define	BMA180_HY   (0x23) /* hysteresis */
#define	BMA180_SLOPE_TAPSENS_INFO   (0x24) /* slope & tap sense info */
#define	BMA180_HIGH_LOW_INFO   (0x25) /* high & low info */
#define	BMA180_LOW_DUR   (0x26) /* low g duration */
#define	BMA180_HIGH_DUR   (0x27) /* high g duration */
#define	BMA180_TAPSENS_TH   (0x28) /* tap sense threshold */
#define	BMA180_LOW_TH   (0x29) /* low g threshold */
#define	BMA180_HIGH_TH   (0x2a) /* high g threshold */
#define	BMA180_SLOPE_TH   (0x2b) /* slope threshold */
#define	BMA180_CD1   (0x2c) /* customer data 1 */
#define	BMA180_CD2   (0x2d) /* customer data 2 */
#define	BMA180_TCO_X   (0x2e) /* temp compensation - X */
#define	BMA180_TCO_Y   (0x2f) /* temp compensation - Y */
#define	BMA180_TCO_Z   (0x30) /* temp compensation - Z */
#define	BMA180_GAIN_T   (0x31) /* gain - temperature */
#define	BMA180_GAIN_X   (0x32) /* gain - X */
#define	BMA180_GAIN_Y   (0x33) /* gain - Y */
#define	BMA180_GAIN_Z   (0x34) /* gain - Z */
#define	BMA180_OFFSET_LSB1   (0x35) /* offset LSB (X) & range */
#define	BMA180_OFFSET_LSB2   (0x36) /* offset LSB (Y & Z) */
#define	BMA180_OFFSET_T   (0x37) /* offset - temperature */
#define	BMA180_OFFSET_X   (0x37) /* offset MSB - X */
#define	BMA180_OFFSET_Y   (0x38) /* offset MSB - Y */
#define	BMA180_OFFSET_Z   (0x39) /* offset MSB - Z */
#define	BMA180_EE_BW_TCS   (0x20) /* bandwidth & temp compensation */
	BMA180 Default Setting Register Addresses (EEPROM) More...
#define	BMA180_EE_CTRL_REG3   (0x21) /* device control register 3 */
#define	BMA180_EE_CTRL_REG4   (0x22) /* device control register 4 */
#define	BMA180_EE_HY   (0x23) /* hysteresis */
#define	BMA180_EE_SLOPE_TAPSENS   (0x24) /* slope & tap sense info */
#define	BMA180_EE_HIGH_LOW   (0x25) /* high & low info */
#define	BMA180_EE_LOW_DUR   (0x26) /* low g duration */
#define	BMA180_EE_HIGH_DUR   (0x27) /* high g duration */
#define	BMA180_EE_TAPSENS_TH   (0x28) /* tap sense threshold */
#define	BMA180_EE_LOW_TH   (0x29) /* low g threshold */
#define	BMA180_EE_HIGH_TH   (0x2a) /* high g threshold */
#define	BMA180_EE_SLOPE_TH   (0x2b) /* slope threshold */
#define	BMA180_EE_CD1   (0x2c) /* customer data 1 */
#define	BMA180_EE_CD2   (0x2d) /* customer data 2 */
#define	BMA180_EE_TCO_X   (0x2e) /* temp compensation - X */
#define	BMA180_EE_TCO_Y   (0x2f) /* temp compensation - Y */
#define	BMA180_EE_TCO_Z   (0x30) /* temp compensation - Z */
#define	BMA180_EE_GAIN_T   (0x31) /* gain - temperature */
#define	BMA180_EE_GAIN_X   (0x32) /* gain - X */
#define	BMA180_EE_GAIN_Y   (0x33) /* gain - Y */
#define	BMA180_EE_GAIN_Z   (0x34) /* gain - Z */
#define	BMA180_EE_OFFSET_LSB1   (0x35) /* offset LSB (X) & range */
#define	BMA180_EE_OFFSET_LSB2   (0x36) /* offset LSB (Y & Z) */
#define	BMA180_EE_OFFSET_T   (0x37) /* offset - temperature */
#define	BMA180_EE_OFFSET_X   (0x37) /* offset MSB - X */
#define	BMA180_EE_OFFSET_Y   (0x38) /* offset MSB - Y */
#define	BMA180_EE_OFFSET_Z   (0x39) /* offset MSB - Z */
#define	BMA180_ID_VAL   (0x03) /* BMA180 chip id value */
	BMA180 Register Bit Definitions. More...
#define	ACC_NEW_DATA   (0x01) /* new data available */
#define	ACC_LSB_0_5   (0xfc) /* bits 0 to 5 of accel reading */
#define	STATUS1_EE_WRITE   (0x01) /* eeprom write in progress */
#define	STATUS1_OFFSET_ST_S   (0x02) /* offset or self-test complete */
#define	STATUS1_SLOPE_SIGN_Z_INT   (0x04) /* Z slope sign (0=pos 1=neg) */
#define	STATUS1_SLOPE_SIGN_Y_INT   (0x08) /* Y slope sign (0=pos 1=neg) */
#define	STATUS1_SLOPE_SIGN_X_INT   (0x10) /* X slope sign (0=pos 1=neg) */
#define	STATUS1_ALERT   (0x20) /* slope alert */
#define	STATUS1_SELF_TEST_RESULT   (0x40) /* test result (0=fail 1=pass) */
#define	STATUS1_FIRST_TAPSENS_S   (0x80) /* first tap detected */
#define	STATUS2_LOW_SIGN_Z_INT   (0x01) /* Z low-g sign (0=pos 1=neg) */
#define	STATUS2_LOW_SIGN_Y_INT   (0x02) /* Y low-g sign (0=pos 1=neg) */
#define	STATUS2_LOW_SIGN_X_INT   (0x04) /* X low-g sign (0=pos 1=neg) */
#define	STATUS2_TAPSENS_S   (0x10) /* tap event */
#define	STATUS2_SLOPE_S   (0x20) /* slope event */
#define	STATUS2_LOW_TH_S   (0x40) /* low-g threshold event */
#define	STATUS2_HIGH_TH_S   (0x80) /* high-g threshold event */
#define	STATUS3_Z_FIRST_INT   (0x01) /* first Z axis interrupt */
#define	STATUS3_Y_FIRST_INT   (0x02) /* first Y axis interrupt */
#define	STATUS3_X_FIRST_INT   (0x04) /* first X axis interrupt */
#define	STATUS3_TAPSENS_INT   (0x10) /* tap detected interrupt */
#define	STATUS3_SLOPE_INT_S   (0x20) /* slope event interrupt */
#define	STATUS3_LOW_TH_INT   (0x40) /* low-g event interrupt */
#define	STATUS3_HIGH_TH_INT   (0x80) /* high-g event interrupt */
#define	STATUS4_TAPSENS_SIGN_Z_INT   (0x04) /* Z tap sign (0=pos, 1=neg) */
#define	STATUS4_TAPSENS_SIGN_Y_INT   (0x08) /* Y tap sign (0=pos, 1=neg) */
#define	STATUS4_TAPSENS_SIGN_X_INT   (0x10) /* X tap sign (0=pos, 1=neg) */
#define	STATUS4_HIGH_SIGN_Z_INT   (0x20) /* Z high-g sign (0=pos 1=neg) */
#define	STATUS4_HIGH_SIGN_Y_INT   (0x40) /* Y high-g sign (0=pos 1=neg) */
#define	STATUS4_HIGH_SIGN_X_INT   (0x80) /* X high-g sign (0=pos 1=neg) */
#define	CTRL0_DIS_WAKE_UP   (0x01) /* disable wake-up mode */
#define	CTRL0_SLEEP_MODE   (0x02) /* enter sleep mode */
#define	CTRL0_ST0   (0x04) /* self-test 0 (electrostatic) */
#define	CTRL0_ST1   (0x08) /* self-test 1 (digital only) */
#define	CTRL0_EE_W   (0x10) /* enable image/eeprom reg write */
#define	CTRL0_UPDATE_IMAGE   (0x20) /* copy eeprom to image regs */
#define	CTRL0_RESET_INT   (0x40) /* reset latched interrupt */
#define	CTRL0_ST_DAMP   (0x80) /* use damping in self test */
#define	CTRL1_SEL_Z   (0x01) /* internal only - do not use */
#define	CTRL1_SEL_Y   (0x02) /* internal only - do not use */
#define	CTRL1_SEL_X   (0x04) /* internal only - do not use */
#define	CTRL1_SEL_T   (0x08) /* internal only - do not use */
#define	CTRL1_EN_OFFSET_Z   (0x20) /* enable offset regulation - Z */
#define	CTRL1_EN_OFFSET_Y   (0x40) /* enable offset regulation - Y */
#define	CTRL1_EN_OFFSET_X   (0x80) /* enable offset regulation - X */
#define	CTRL2_ST_AMP   (0x0e) /* self-test amplitude (3 bits) */
#define	CTRL2_UNLOCK_EE   (0xf0) /* internal only - do not use */
#define	SOFT_RESET_VAL   (0xb6) /* write value for soft reset */
#define	TCS   (0x0f) /* temp compensation (4 bits) */
#define	TCS_NEG_4_0_PCT   (0x00) /* -4.0% */
#define	TCS_NEG_3_5_PCT   (0x01) /* -3.5% */
#define	TCS_NEG_3_0_PCT   (0x02) /* -3.0% */
#define	TCS_NEG_2_5_PCT   (0x03) /* -2.5% */
#define	TCS_NEG_2_0_PCT   (0x04) /* -2.0% */
#define	TCS_NEG_1_5_PCT   (0x05) /* -1.5% */
#define	TCS_NEG_1_0_PCT   (0x06) /* -1.0% */
#define	TCS_NEG_0_5_PCT   (0x07) /* -0.5% */
#define	TCS_0_0_PCT   (0x08) /* 0.0% (default) */
#define	TCS_0_5_PCT   (0x09) /* +0.5% */
#define	TCS_1_0_PCT   (0x0a) /* +1.0% */
#define	TCS_1_5_PCT   (0x0b) /* +1.5% */
#define	TCS_2_0_PCT   (0x0c) /* +2.0% */
#define	TCS_2_5_PCT   (0x0d) /* +2.5% */
#define	TCS_3_0_PCT   (0x0e) /* +3.0% */
#define	TCS_3_5_PCT   (0x0f) /* +3.5% */
#define	BW   (0xf0) /* bandwidth (4 bits) */
#define	BW_10HZ   (0x00) /* 10 Hz */
#define	BW_20HZ   (0x10) /* 20 Hz */
#define	BW_40HZ   (0x20) /* 40 Hz */
#define	BW_75HZ   (0x30) /* 75 Hz */
#define	BW_150HZ   (0x40) /* 150 Hz (default) */
#define	BW_300HZ   (0x50) /* 300 Hz */
#define	BW_600HZ   (0x60) /* 600 Hz */
#define	BW_1200HZ   (0x70) /* 1200 Hz */
#define	BW_HIGH_PASS   (0x80) /* 1 Hz high pass filter */
#define	BW_BAND_PASS   (0x90) /* 0.2 to 300 Hz band pass fltr */
#define	CTRL3_LAT_INT   (0x01) /* latch ints until reset_int */
#define	CTRL3_NEW_DATA_INT   (0x02) /* generate int when new data */
#define	CTRL3_ADV_INT   (0x04) /* enable advanced int controls */
#define	CTRL3_TAPSENS_INT_EN   (0x08) /* enable tap sense interrupt */
#define	CTRL3_LOW_INT   (0x10) /* enable low-g interrupt */
#define	CTRL3_HIGH_INT   (0x20) /* enable high-g interrupt */
#define	CTRL3_SLOPE_INT   (0x40) /* enable slope interrupt */
#define	CTRL3_SLOPE_ALERT   (0x80) /* enable slope alert mode */
#define	CTRL4_OFFSET_FINETUNING   (0x03) /* offset fine tuning (2 bits) */
#define	CTRL4_FF_CD_R   (0x0c) /* free fall countdown (2 bits) */
#define	CTRL4_MOT_CD_R   (0x30) /* motion countdown (2 bits) */
#define	CTRL4_LOW_HY_LSB   (0xc0) /* low-g hysteresis (low 2 bits) */
#define	LOW_HY_MSB   (0x07) /* low-g hysteresis (high 3bits) */
#define	HIGH_HY   (0xf8) /* high-g hysteresis (5 bits) */
#define	TAPSENS_FILT   (0x01) /* filter tap sensing */
#define	TAPSENS_INT_Z   (0x02) /* generate int on Z tap */
#define	TAPSENS_INT_Y   (0x04) /* generate int on Y tap */
#define	TAPSENS_INT_X   (0x08) /* generate int on X tap */
#define	SLOPE_FILT   (0x10) /* filter slope sensing */
#define	SLOPE_INT_Z   (0x20) /* generate int on Z slope */
#define	SLOPE_INT_Y   (0x40) /* generate int on Y slope */
#define	SLOPE_INT_X   (0x80) /* generate int on X slope */
#define	LOW_FILT   (0x01) /* filter low-g sensing */
#define	LOW_INT_Z   (0x02) /* generate int on Z low-g */
#define	LOW_INT_Y   (0x04) /* generate int on Y low-g */
#define	LOW_INT_X   (0x08) /* generate int on X low-g */
#define	HIGH_FILT   (0x10) /* filter high-g sensing */
#define	HIGH_INT_Z   (0x20) /* generate int on Z high-g */
#define	HIGH_INT_Y   (0x40) /* generate int on Y high-g */
#define	HIGH_INT_X   (0x80) /* generate int on X high-g */
#define	TCO_RANGE   (0x01) /* increase temp comp range */
#define	LOW_DUR   (0xfe) /* low-g detect duration (7bits) */
#define	DIS_I2C   (0x01) /* disable I2C interface */
#define	HIGH_DUR   (0xfe) /* high-g detect duration (7bits) */
#define	SLOPE_DUR   (0x03) /* slope detect duration (2bits) */
#define	TCO_X   (0xfc) /* temp comp value - X (6 bits) */
#define	WAKE_UP_DUR   (0x03) /* wake up duration (2 bits) */
#define	TCO_Y   (0xfc) /* temp comp value - Y (6 bits) */
#define	MODE_CONFIG   (0x03) /* std. mode "sub mode" (2 bits) */
#define	MODE_LOW_NOISE   (0x00) /* low noise mode */
#define	MODE_SUPER_LOW_NOISE   (0x01) /* super low noise mode */
#define	MODE_ULTRA_LOW_NOISE   (0x02) /* ultra low noise mode */
#define	MODE_LOW_POWER   (0x03) /* low power mode */
#define	TCO_Z   (0xfc) /* temp comp value - Z (6 bits) */
#define	TAPSENS_DUR   (0x07) /* tap sense duration (3 bits) */
#define	GAIN_T   (0xf8) /* temperature gain (5 bits) */
#define	DIS_REG   (0x01) /* disable voltage regulators */
#define	GAIN_X   (0xfe) /* X gain (7 bits) */
#define	SHADOW_DIS   (0x01) /* disable MSB/LSB shadowing */
#define	GAIN_Y   (0xfe) /* Y gain (7 bits) */
#define	WAKE_UP   (0x01) /* enter normal (wake) mode */
#define	GAIN_Z   (0xfe) /* Z gain (7 bits) */
#define	SMP_SKIP   (0x01) /* enable sample skipping */
#define	RANGE   (0x0e) /* accel range +/- g (3 bits) */
#define	BMA180_RANGE_1G   (0x00) /* +/- 1 g */
#define	BMA180_RANGE_1_5G   (0x02) /* +/- 1.5 g */
#define	BMA180_RANGE_2G   (0x04) /* +/- 2 g */
#define	BMA180_RANGE_3G   (0x06) /* +/- 3 g */
#define	BMA180_RANGE_4G   (0x08) /* +/- 4 g */
#define	BMA180_RANGE_8G   (0x0a) /* +/- 8 g */
#define	BMA180_RANGE_16G   (0x0c) /* +/- 16 g */
#define	OFFSET_X_LSB   (0xf0) /* X offset (low 4 bits) */
#define	OFFSET_Y_LSB   (0x0f) /* Y offset (low 4 bits) */
#define	OFFSET_Z_LSB   (0xf0) /* Z offset (low 4 bits) */
#define	READOUT_12BIT   (0x01) /* enable 12-bit output mode */
#define	OFFSET_T   (0xfe) /* temperature offset (7 bits) */

Functions
bool	bma180_init (sensor_t *, int)
	Bosch BMA180 accelerometer driver initialization. More...

#define ACC_LSB_0_5   (0xfc) /* bits 0 to 5 of accel reading */

#define ACC_NEW_DATA   (0x01) /* new data available */

#define BMA180_ACC_X_LSB   (0x02) /* X accel - LSB + new data */

Referenced by bma180_init().

#define BMA180_ACC_X_MSB   (0x03) /* X accel - MSB */

#define BMA180_ACC_Y_LSB   (0x04) /* Y accel - LSB + new data */

#define BMA180_ACC_Y_MSB   (0x05) /* Y accel - MSB */

#define BMA180_ACC_Z_LSB   (0x06) /* Z accel - LSB + new data */

#define BMA180_ACC_Z_MSB   (0x07) /* Z accel - MSB */

#define BMA180_BW_TCS   (0x20) /* bandwidth & temp compensation */

BMA180 Default Setting Register Addresses.

Referenced by bma180_set_bandwidth().

#define BMA180_CD1   (0x2c) /* customer data 1 */

#define BMA180_CD2   (0x2d) /* customer data 2 */

#define BMA180_CHIP_ID   (0x00) /* chip ID - always 0x03 */

BMA180 Register Addresses.

Referenced by bma180_device_id(), and bma180_init().

#define BMA180_CHIP_VERSION   (0x01) /* chip revision */

Referenced by bma180_device_id().

#define BMA180_CTRL0   (0x0d) /* device control register 0 */

#define BMA180_CTRL1   (0x0e) /* device control register 1 */

#define BMA180_CTRL2   (0x0f) /* device control register 2 */

#define BMA180_CTRL3   (0x21) /* device control register 3 */

#define BMA180_CTRL4   (0x22) /* device control register 4 */

#define BMA180_DATA_RESOLUTION   (14)

Referenced by bma180_init().

#define BMA180_EE_BW_TCS   (0x20) /* bandwidth & temp compensation */

BMA180 Default Setting Register Addresses (EEPROM)

#define BMA180_EE_CD1   (0x2c) /* customer data 1 */

#define BMA180_EE_CD2   (0x2d) /* customer data 2 */

#define BMA180_EE_CTRL_REG3   (0x21) /* device control register 3 */

#define BMA180_EE_CTRL_REG4   (0x22) /* device control register 4 */

#define BMA180_EE_GAIN_T   (0x31) /* gain - temperature */

#define BMA180_EE_GAIN_X   (0x32) /* gain - X */

#define BMA180_EE_GAIN_Y   (0x33) /* gain - Y */

#define BMA180_EE_GAIN_Z   (0x34) /* gain - Z */

#define BMA180_EE_HIGH_DUR   (0x27) /* high g duration */

#define BMA180_EE_HIGH_LOW   (0x25) /* high & low info */

#define BMA180_EE_HIGH_TH   (0x2a) /* high g threshold */

#define BMA180_EE_HY   (0x23) /* hysteresis */

#define BMA180_EE_LOW_DUR   (0x26) /* low g duration */

#define BMA180_EE_LOW_TH   (0x29) /* low g threshold */

#define BMA180_EE_OFFSET_LSB1   (0x35) /* offset LSB (X) & range */

#define BMA180_EE_OFFSET_LSB2   (0x36) /* offset LSB (Y & Z) */

#define BMA180_EE_OFFSET_T   (0x37) /* offset - temperature */

#define BMA180_EE_OFFSET_X   (0x37) /* offset MSB - X */

#define BMA180_EE_OFFSET_Y   (0x38) /* offset MSB - Y */

#define BMA180_EE_OFFSET_Z   (0x39) /* offset MSB - Z */

#define BMA180_EE_SLOPE_TAPSENS   (0x24) /* slope & tap sense info */

#define BMA180_EE_SLOPE_TH   (0x2b) /* slope threshold */

#define BMA180_EE_TAPSENS_TH   (0x28) /* tap sense threshold */

#define BMA180_EE_TCO_X   (0x2e) /* temp compensation - X */

#define BMA180_EE_TCO_Y   (0x2f) /* temp compensation - Y */

#define BMA180_EE_TCO_Z   (0x30) /* temp compensation - Z */

#define BMA180_GAIN_T   (0x31) /* gain - temperature */

#define BMA180_GAIN_X   (0x32) /* gain - X */

#define BMA180_GAIN_Y   (0x33) /* gain - Y */

#define BMA180_GAIN_Z   (0x34) /* gain - Z */

#define BMA180_HIGH_DUR   (0x27) /* high g duration */

#define BMA180_HIGH_LOW_INFO   (0x25) /* high & low info */

#define BMA180_HIGH_TH   (0x2a) /* high g threshold */

#define BMA180_HY   (0x23) /* hysteresis */

#define BMA180_ID_VAL   (0x03) /* BMA180 chip id value */

BMA180 Register Bit Definitions.

Referenced by bma180_init().

#define BMA180_LOW_DUR   (0x26) /* low g duration */

#define BMA180_LOW_TH   (0x29) /* low g threshold */

#define BMA180_OFFSET_LSB1   (0x35) /* offset LSB (X) & range */

Referenced by bma180_set_range().

#define BMA180_OFFSET_LSB2   (0x36) /* offset LSB (Y & Z) */

#define BMA180_OFFSET_T   (0x37) /* offset - temperature */

#define BMA180_OFFSET_X   (0x37) /* offset MSB - X */

#define BMA180_OFFSET_Y   (0x38) /* offset MSB - Y */

#define BMA180_OFFSET_Z   (0x39) /* offset MSB - Z */

#define BMA180_RANGE_16G   (0x0c) /* +/- 16 g */

#define BMA180_RANGE_1_5G   (0x02) /* +/- 1.5 g */

#define BMA180_RANGE_1G   (0x00) /* +/- 1 g */

#define BMA180_RANGE_2G   (0x04) /* +/- 2 g */

#define BMA180_RANGE_3G   (0x06) /* +/- 3 g */

#define BMA180_RANGE_4G   (0x08) /* +/- 4 g */

#define BMA180_RANGE_8G   (0x0a) /* +/- 8 g */

#define BMA180_RESET   (0x10) /* soft reset */

#define BMA180_SLOPE_TAPSENS_INFO   (0x24) /* slope & tap sense info */

#define BMA180_SLOPE_TH   (0x2b) /* slope threshold */

#define BMA180_SPI_MODE   (3)

#define BMA180_STATUS1   (0x09) /* device status register 1 */

#define BMA180_STATUS2   (0x0a) /* device status register 2 */

#define BMA180_STATUS3   (0x0b) /* device status register 3 */

#define BMA180_STATUS4   (0x0c) /* device status register 4 */

#define BMA180_TAPSENS_TH   (0x28) /* tap sense threshold */

#define BMA180_TCO_X   (0x2e) /* temp compensation - X */

#define BMA180_TCO_Y   (0x2f) /* temp compensation - Y */

#define BMA180_TCO_Z   (0x30) /* temp compensation - Z */

#define BMA180_TEMP   (0x08) /* temperature */

Referenced by bma180_get_temperature().

#define BMA180_TEMP_OFFSET   (-40) /* temperature sensor offset */

Referenced by bma180_get_temperature().

#define BMA180_TWI_ADDR   (0x40)

#define BW   (0xf0) /* bandwidth (4 bits) */

Referenced by bma180_set_bandwidth().

#define BW_10HZ   (0x00) /* 10 Hz */

#define BW_1200HZ   (0x70) /* 1200 Hz */

#define BW_150HZ   (0x40) /* 150 Hz (default) */

#define BW_20HZ   (0x10) /* 20 Hz */

#define BW_300HZ   (0x50) /* 300 Hz */

#define BW_40HZ   (0x20) /* 40 Hz */

#define BW_600HZ   (0x60) /* 600 Hz */

#define BW_75HZ   (0x30) /* 75 Hz */

#define BW_BAND_PASS   (0x90) /* 0.2 to 300 Hz band pass fltr */

#define BW_HIGH_PASS   (0x80) /* 1 Hz high pass filter */

#define CTRL0_DIS_WAKE_UP   (0x01) /* disable wake-up mode */

#define CTRL0_EE_W   (0x10) /* enable image/eeprom reg write */

#define CTRL0_RESET_INT   (0x40) /* reset latched interrupt */

#define CTRL0_SLEEP_MODE   (0x02) /* enter sleep mode */

#define CTRL0_ST0   (0x04) /* self-test 0 (electrostatic) */

#define CTRL0_ST1   (0x08) /* self-test 1 (digital only) */

#define CTRL0_ST_DAMP   (0x80) /* use damping in self test */

#define CTRL0_UPDATE_IMAGE   (0x20) /* copy eeprom to image regs */

#define CTRL1_EN_OFFSET_X   (0x80) /* enable offset regulation - X */

#define CTRL1_EN_OFFSET_Y   (0x40) /* enable offset regulation - Y */

#define CTRL1_EN_OFFSET_Z   (0x20) /* enable offset regulation - Z */

#define CTRL1_SEL_T   (0x08) /* internal only - do not use */

#define CTRL1_SEL_X   (0x04) /* internal only - do not use */

#define CTRL1_SEL_Y   (0x02) /* internal only - do not use */

#define CTRL1_SEL_Z   (0x01) /* internal only - do not use */

#define CTRL2_ST_AMP   (0x0e) /* self-test amplitude (3 bits) */

#define CTRL2_UNLOCK_EE   (0xf0) /* internal only - do not use */

#define CTRL3_ADV_INT   (0x04) /* enable advanced int controls */

#define CTRL3_HIGH_INT   (0x20) /* enable high-g interrupt */

#define CTRL3_LAT_INT   (0x01) /* latch ints until reset_int */

#define CTRL3_LOW_INT   (0x10) /* enable low-g interrupt */

#define CTRL3_NEW_DATA_INT   (0x02) /* generate int when new data */

#define CTRL3_SLOPE_ALERT   (0x80) /* enable slope alert mode */

#define CTRL3_SLOPE_INT   (0x40) /* enable slope interrupt */

#define CTRL3_TAPSENS_INT_EN   (0x08) /* enable tap sense interrupt */

#define CTRL4_FF_CD_R   (0x0c) /* free fall countdown (2 bits) */

#define CTRL4_LOW_HY_LSB   (0xc0) /* low-g hysteresis (low 2 bits) */

#define CTRL4_MOT_CD_R   (0x30) /* motion countdown (2 bits) */

#define CTRL4_OFFSET_FINETUNING   (0x03) /* offset fine tuning (2 bits) */

#define DIS_I2C   (0x01) /* disable I2C interface */

#define DIS_REG   (0x01) /* disable voltage regulators */

#define GAIN_T   (0xf8) /* temperature gain (5 bits) */

#define GAIN_X   (0xfe) /* X gain (7 bits) */

#define GAIN_Y   (0xfe) /* Y gain (7 bits) */

#define GAIN_Z   (0xfe) /* Z gain (7 bits) */

#define HIGH_DUR   (0xfe) /* high-g detect duration (7bits) */

#define HIGH_FILT   (0x10) /* filter high-g sensing */

#define HIGH_HY   (0xf8) /* high-g hysteresis (5 bits) */

#define HIGH_INT_X   (0x80) /* generate int on X high-g */

#define HIGH_INT_Y   (0x40) /* generate int on Y high-g */

#define HIGH_INT_Z   (0x20) /* generate int on Z high-g */

#define LOW_DUR   (0xfe) /* low-g detect duration (7bits) */

#define LOW_FILT   (0x01) /* filter low-g sensing */

#define LOW_HY_MSB   (0x07) /* low-g hysteresis (high 3bits) */

#define LOW_INT_X   (0x08) /* generate int on X low-g */

#define LOW_INT_Y   (0x04) /* generate int on Y low-g */

#define LOW_INT_Z   (0x02) /* generate int on Z low-g */

#define MODE_CONFIG   (0x03) /* std. mode "sub mode" (2 bits) */

#define MODE_LOW_NOISE   (0x00) /* low noise mode */

#define MODE_LOW_POWER   (0x03) /* low power mode */

#define MODE_SUPER_LOW_NOISE   (0x01) /* super low noise mode */

#define MODE_ULTRA_LOW_NOISE   (0x02) /* ultra low noise mode */

#define OFFSET_T   (0xfe) /* temperature offset (7 bits) */

#define OFFSET_X_LSB   (0xf0) /* X offset (low 4 bits) */

#define OFFSET_Y_LSB   (0x0f) /* Y offset (low 4 bits) */

#define OFFSET_Z_LSB   (0xf0) /* Z offset (low 4 bits) */

#define RANGE   (0x0e) /* accel range +/- g (3 bits) */

Referenced by bma180_set_range().

#define READOUT_12BIT   (0x01) /* enable 12-bit output mode */

#define SHADOW_DIS   (0x01) /* disable MSB/LSB shadowing */

#define SLOPE_DUR   (0x03) /* slope detect duration (2bits) */

#define SLOPE_FILT   (0x10) /* filter slope sensing */

#define SLOPE_INT_X   (0x80) /* generate int on X slope */

#define SLOPE_INT_Y   (0x40) /* generate int on Y slope */

#define SLOPE_INT_Z   (0x20) /* generate int on Z slope */

#define SMP_SKIP   (0x01) /* enable sample skipping */

#define SOFT_RESET_VAL   (0xb6) /* write value for soft reset */

#define STATUS1_ALERT   (0x20) /* slope alert */

#define STATUS1_EE_WRITE   (0x01) /* eeprom write in progress */

#define STATUS1_FIRST_TAPSENS_S   (0x80) /* first tap detected */

#define STATUS1_OFFSET_ST_S   (0x02) /* offset or self-test complete */

#define STATUS1_SELF_TEST_RESULT   (0x40) /* test result (0=fail 1=pass) */

#define STATUS1_SLOPE_SIGN_X_INT   (0x10) /* X slope sign (0=pos 1=neg) */

#define STATUS1_SLOPE_SIGN_Y_INT   (0x08) /* Y slope sign (0=pos 1=neg) */

#define STATUS1_SLOPE_SIGN_Z_INT   (0x04) /* Z slope sign (0=pos 1=neg) */

#define STATUS2_HIGH_TH_S   (0x80) /* high-g threshold event */

#define STATUS2_LOW_SIGN_X_INT   (0x04) /* X low-g sign (0=pos 1=neg) */

#define STATUS2_LOW_SIGN_Y_INT   (0x02) /* Y low-g sign (0=pos 1=neg) */

#define STATUS2_LOW_SIGN_Z_INT   (0x01) /* Z low-g sign (0=pos 1=neg) */

#define STATUS2_LOW_TH_S   (0x40) /* low-g threshold event */

#define STATUS2_SLOPE_S   (0x20) /* slope event */

#define STATUS2_TAPSENS_S   (0x10) /* tap event */

#define STATUS3_HIGH_TH_INT   (0x80) /* high-g event interrupt */

#define STATUS3_LOW_TH_INT   (0x40) /* low-g event interrupt */

#define STATUS3_SLOPE_INT_S   (0x20) /* slope event interrupt */

#define STATUS3_TAPSENS_INT   (0x10) /* tap detected interrupt */

#define STATUS3_X_FIRST_INT   (0x04) /* first X axis interrupt */

#define STATUS3_Y_FIRST_INT   (0x02) /* first Y axis interrupt */

#define STATUS3_Z_FIRST_INT   (0x01) /* first Z axis interrupt */

#define STATUS4_HIGH_SIGN_X_INT   (0x80) /* X high-g sign (0=pos 1=neg) */

#define STATUS4_HIGH_SIGN_Y_INT   (0x40) /* Y high-g sign (0=pos 1=neg) */

#define STATUS4_HIGH_SIGN_Z_INT   (0x20) /* Z high-g sign (0=pos 1=neg) */

#define STATUS4_TAPSENS_SIGN_X_INT   (0x10) /* X tap sign (0=pos, 1=neg) */

#define STATUS4_TAPSENS_SIGN_Y_INT   (0x08) /* Y tap sign (0=pos, 1=neg) */

#define STATUS4_TAPSENS_SIGN_Z_INT   (0x04) /* Z tap sign (0=pos, 1=neg) */

#define TAPSENS_DUR   (0x07) /* tap sense duration (3 bits) */

#define TAPSENS_FILT   (0x01) /* filter tap sensing */

#define TAPSENS_INT_X   (0x08) /* generate int on X tap */

#define TAPSENS_INT_Y   (0x04) /* generate int on Y tap */

#define TAPSENS_INT_Z   (0x02) /* generate int on Z tap */

#define TCO_RANGE   (0x01) /* increase temp comp range */

#define TCO_X   (0xfc) /* temp comp value - X (6 bits) */

#define TCO_Y   (0xfc) /* temp comp value - Y (6 bits) */

#define TCO_Z   (0xfc) /* temp comp value - Z (6 bits) */

#define TCS   (0x0f) /* temp compensation (4 bits) */

#define TCS_0_0_PCT   (0x08) /* 0.0% (default) */

#define TCS_0_5_PCT   (0x09) /* +0.5% */

#define TCS_1_0_PCT   (0x0a) /* +1.0% */

#define TCS_1_5_PCT   (0x0b) /* +1.5% */

#define TCS_2_0_PCT   (0x0c) /* +2.0% */

#define TCS_2_5_PCT   (0x0d) /* +2.5% */

#define TCS_3_0_PCT   (0x0e) /* +3.0% */

#define TCS_3_5_PCT   (0x0f) /* +3.5% */

#define TCS_NEG_0_5_PCT   (0x07) /* -0.5% */

#define TCS_NEG_1_0_PCT   (0x06) /* -1.0% */

#define TCS_NEG_1_5_PCT   (0x05) /* -1.5% */

#define TCS_NEG_2_0_PCT   (0x04) /* -2.0% */

#define TCS_NEG_2_5_PCT   (0x03) /* -2.5% */

#define TCS_NEG_3_0_PCT   (0x02) /* -3.0% */

#define TCS_NEG_3_5_PCT   (0x01) /* -3.5% */

#define TCS_NEG_4_0_PCT   (0x00) /* -4.0% */

#define WAKE_UP   (0x01) /* enter normal (wake) mode */

#define WAKE_UP_DUR   (0x03) /* wake up duration (2 bits) */

bool bma180_init	(	sensor_t *	sensor,
		int	resvd
	)

Bosch BMA180 accelerometer driver initialization.

This is the main initialization function for the BMA180 device. The accelerometer range and bandwidth are set based on user-specified values from the system configuration.

Parameters

sensor	Address of a sensor device descriptor.
resvd	Reserved value.

Returns

bool true if the call succeeds, else false is returned.

References ARRAYSIZE, band_table, sensor_hal::bandwidth, BMA180_ACC_X_LSB, BMA180_CHIP_ID, BMA180_DATA_RESOLUTION, BMA180_ID_VAL, bma180_ioctl(), bma180_read(), bma180_set_bandwidth(), bma180_set_range(), sensor_hal::burst_addr, sensor_hal::bus, sensor_desc::drv, sensor_device_t::func, sensor_desc::hal, sensor_hal::range, range_table, sensor_funcs_t::read, sensor_hal::resolution, sensor_bus_get, SENSOR_CAPS_3_AXIS, SENSOR_CAPS_AUX_TEMP, SENSOR_CAPS_HI_G_EVENT, SENSOR_CAPS_LO_G_EVENT, SENSOR_CAPS_SELFTEST, SENSOR_SCALE_milli, SENSOR_UNITS_g0, SENSOR_VENDOR_BOSCH, status, bus_desc_t::status, and STATUS_OK.