hal_vti_cma3000_D01_accelerometer.h File Reference

public methods for hal_vti_cma3000_D01_accelerometer.c More...

Defines
#define	ACCEL_WHO_AM_I   0x00
#define	ACCEL_REVID   0x01
#define	ACCEL_CTRL   0x02
#define	ACCEL_STATUS   0x03
#define	ACCEL_RSTR   0x04
#define	ACCEL_INT_STATUS   0x05
#define	ACCEL_DOUTX   0x06
#define	ACCEL_DOUTY   0x07
#define	ACCEL_DOUTZ   0x08
#define	ACCEL_MDTHR   0x09
#define	ACCEL_MDFFTMR   0x0A
#define	ACCEL_FFTHR   0x0B
#define	ACCEL_I2C_ADDR   0x0C
#define	G_RANGE_2   0x80
#define	INT_LEVEL_LOW   0x40
#define	MDET_NO_EXIT   0x20
#define	I2C_DIS   0x10
#define	MODE_PD   0x00
#define	MODE_100   0x02
#define	MODE_400   0x04
#define	MODE_40   0x06
#define	MODE_MD_10   0x08
#define	MODE_FF_100   0x0A
#define	MODE_FF_400   0x0C
#define	INT_DIS   0x01
#define	ACCELEROMETER_DELAY_BETWEEN_OPERATIONS_US   44
Functions
unsigned char	readAccelerometerRegister (unsigned char Address)
unsigned char	writeAccelerometerRegister (unsigned char Address, unsigned char Data)
char *	getAccelerometerInterruptReason (unsigned char interruptReason)

---

Detailed Description

public methods for hal_vti_cma3000_D01_accelerometer.c

include this file in applications where you want to use the accelerometer.

Rev

545

Author

dsmith

Date

2010-05-27 17:09:05 -0700 (Thu, 27 May 2010)

YOU ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.

---

Function Documentation

char* getAccelerometerInterruptReason

(

unsigned char

interruptReason

)

Returns the name of the Accelerometer Interrupt Status Register that caused the interrupt.

Parameters:

interruptReason

the value read from the ACCEL_INT_STATUS register.

Returns:

the name of the reason for the interrupt, e.g. "Motion on X" or "Motion on Y" or "Free Fall" etc.

unsigned char readAccelerometerRegister

(

unsigned char

reg

)

Read a byte from the accelerometer over SPI

Precondition:

SPI port configured for the accelerometer correctly

Parameters:

reg

which register to read from

Returns:

the value read from the register

unsigned char writeAccelerometerRegister	(	unsigned char	reg,
		unsigned char	data
	)

Write a byte to the acceleration sensor over SPI

Precondition:

SPI port configured correctly

Parameters:

reg

which register to read from

Returns:

the value returned by the write operation