2013-01-08 22:40:58 +08:00
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/***************************************************************************//**
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* @file mma7455l.c
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* @brief Header file of Freescale MMA7455L 3 axis Low-g digital output
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* accelerometer
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* COPYRIGHT (C) 2012, RT-Thread Development Team
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* @author onelife
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* @version 1.0
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*******************************************************************************
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* @section License
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
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*******************************************************************************
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* @section Change Logs
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* Date Author Notes
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* 2011-08-02 onelife Initial creation
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******************************************************************************/
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#ifndef __MMA7455L_H__
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#define __MMA7455L_H__
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#define XOUTL 0x00 //00 10 bits output value X LSB (Read only)
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#define XOUTH 0x01 //01 10 bits output value X MSB (Read only)
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#define YOUTL 0x02 //02 10 bits output value Y LSB (Read only)
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#define YOUTH 0x03 //03 10 bits output value Y MSB (Read only)
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#define ZOUTL 0x04 //04 10 bits output value Z LSB (Read only)
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#define ZOUTH 0x05 //05 10 bits output value Z MSB (Read only)
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#define XOUT8 0x06 //06 8 bits Output value X (Read only)
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#define YOUT8 0x07 //07 8 bits Output value Y (Read only)
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#define ZOUT8 0x08 //08 8 bits Output value Z (Read only)
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#define STATUS 0x09 //09 Status registers (Read only)
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#define DETSRC 0x0A //10 Detection source registers (Read only)
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#define TOUT 0x0B //11 Temperature output value (Optional)
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#define RESERVED1 0x0C //12 Reserved
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#define I2CAD 0x0D //13 I2C device address (Bit[6:0]: Read only, Bit[7]: Read/Write)
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#define USRINF 0x0E //14 User information (Optional, Read only)
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#define WHOAMI 0x0F //15 Who am I value (Optional, Read only)
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#define XOFFL 0x10 //16 Offset drift X value (LSB) (Read/Write)
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#define XOFFH 0x11 //17 Offset drift X value (MSB) (Read/Write)
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#define YOFFL 0x12 //18 Offset drift Y value (LSB) (Read/Write)
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#define YOFFH 0x13 //19 Offset drift Y value (MSB) (Read/Write)
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#define ZOFFL 0x14 //20 Offset drift Z value (LSB) (Read/Write)
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#define ZOFFH 0x15 //21 Offset drift Z value (MSB) (Read/Write)
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#define MCTL 0x16 //22 Mode control (Read/Write)
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#define INTRST 0x17 //23 Interrupt latch reset (Read/Write)
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#define CTL1 0x18 //24 Control 1 (Read/Write)
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#define CTL2 0x19 //25 Control 2 (Read/Write)
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#define LDTH 0x1A //26 Level detection threshold limit value (Read/Write)
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#define PDTH 0x1B //27 Pulse detection threshold limit value (Read/Write)
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#define PW 0x1C //28 Pulse duration value (Read/Write)
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#define LT 0x1D //29 Latency time value (Read/Write)
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#define TW 0x1E //30 Time window for second pulse value(Read/Write)
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#define RESERVED2 0x1F //31 Reserved
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/* For DETSRC */
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#define DETSRC_INT_1 (0x01 << 0)
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#define DETSRC_INT_2 (0x01 << 1)
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#define DETSRC_PULSE_Z (0x01 << 2)
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#define DETSRC_PULSE_Y (0x01 << 3)
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#define DETSRC_PULSE_X (0x01 << 4)
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#define DETSRC_LEVEL_Z (0x01 << 5)
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#define DETSRC_LEVEL_Y (0x01 << 6)
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#define DETSRC_LEVEL_X (0x01 << 7)
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/* For MCTL */
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#define MCTL_SHIFT_MODE (0)
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#define MCTL_SHIFT_G (2)
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#define MCTL_MASK_MODE (0x03)
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#define MCTL_MASK_G (0x0c)
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#define MCTL_MODE_STANDBY (0x00 << MCTL_SHIFT_MODE)
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#define MCTL_MODE_MEASUREMENT (0x01 << MCTL_SHIFT_MODE)
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#define MCTL_MODE_LEVEL (0x02 << MCTL_SHIFT_MODE)
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#define MCTL_MODE_PULSE (0x03 << MCTL_SHIFT_MODE)
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#define MCTL_RANGE_8G (0x00 << MCTL_SHIFT_G)
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#define MCTL_RANGE_4G (0x02 << MCTL_SHIFT_G)
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#define MCTL_RANGE_2G (0x01 << MCTL_SHIFT_G)
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#define MCTL_PIN_INT1 (0x01 << 6)
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/* For INTRST */
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#define INTRST_INT_1 (0x01 << 0)
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#define INTRST_INT_2 (0x01 << 1)
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/* For CTL1 */
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#define CTL1_SHIFT_INTPIN (0)
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#define CTL1_SHIFT_INT (1)
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#define CTL1_SHIFT_AXES (3)
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#define CTL1_SHIFT_THRESHOLD (6)
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#define CTL1_SHIFT_BANDWIDTH (7)
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#define CTL1_MASK_AXES (0x38)
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#define CTL1_INTPIN_INVERSE (0x01 << CTL1_SHIFT_INTPIN)
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#define CTL1_INT_LEVEL_PULSE (0x00 << CTL1_SHIFT_INT)
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#define CTL1_INT_PULSE_LEVEL (0x01 << CTL1_SHIFT_INT)
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#define CTL1_INT_SINGLE_DOUBLE (0x02 << CTL1_SHIFT_INT)
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#define CTL1_X_DISABLE (0x01 << CTL1_SHIFT_AXES)
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#define CTL1_Y_DISABLE (0x02 << CTL1_SHIFT_AXES)
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#define CTL1_Z_DISABLE (0x04 << CTL1_SHIFT_AXES)
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#define CTL1_THRESHOLD_ABSOLUTE (0x00 << CTL1_SHIFT_THRESHOLD)
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#define CTL1_THRESHOLD_INTEGER (0x01 << CTL1_SHIFT_THRESHOLD)
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#define CTL1_BANDWIDTH_62_5HZ (0x00 << CTL1_SHIFT_BANDWIDTH)
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#define CTL1_BANDWIDTH_125HZ (0x01 << CTL1_SHIFT_BANDWIDTH)
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/* For CTL2 */
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#define CTL1_SHIFT_LEVEL (0)
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#define CTL1_SHIFT_PULSE (1)
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#define CTL1_SHIFT_DRIVE (2)
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#define CTL2_LEVEL_OR (0x00 << CTL1_SHIFT_LEVEL)
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#define CTL2_LEVEL_AND (0x01 << CTL1_SHIFT_LEVEL)
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#define CTL2_PULSE_OR (0x00 << CTL1_SHIFT_PULSE)
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#define CTL2_PULSE_AND (0x01 << CTL1_SHIFT_PULSE)
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#define CTL2_DRIVE_STANDARD (0x00 << CTL1_SHIFT_DRIVE)
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#define CTL2_DRIVE_STRONG (0x01 << CTL1_SHIFT_DRIVE)
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#endif /* __MMA7455L_H__ */
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