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Accelerometer.h
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Accelerometer.h
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#ifndef __ACCELEROMETER_H__
#define __ACCELEROMETER_H__
#include <stdint.h>
#include <stdbool.h>
/*******************************************************************************
* WHO_AM_I Register: Device Identification Register
* Read only register
* Default value: 0x3B
*******************************************************************************/
#define LIS302DL_WHO_AM_I_ADDR 0x0F
/*******************************************************************************
* CTRL_REG1 Register: Control Register 1
* Read Write register
* Default value: 0x07
* 7 DR: Data Rate selection.
* 0 - 100 Hz output data rate
* 1 - 400 Hz output data rate
* 6 PD: Power Down control.
* 0 - power down mode
* 1 - active mode
* 5 FS: Full Scale selection.
* 0 - Typical measurement range 2.3
* 1 - Typical measurement range 9.2
* 4:3 STP-STM Self Test Enable:
* STP | STM | mode
* ----------------------------
* 0 | 0 | Normal mode
* 0 | 1 | Self Test M
* 1 | 0 | Self Test P
* 2 Zen: Z axis enable.
* 0 - Z axis disabled
* 1- Z axis enabled
* 1 Yen: Y axis enable.
* 0 - Y axis disabled
* 1- Y axis enabled
* 0 Xen: X axis enable.
* 0 - X axis disabled
* 1- X axis enabled
********************************************************************************/
#define LIS302DL_CTRL_REG1_ADDR 0x20
#define LIS302DL_DATARATE_100 0x00
#define LIS302DL_DATARATE_400 0x80
#define LIS302DL_LOWPOWERMODE_POWERDOWN 0x00
#define LIS302DL_LOWPOWERMODE_ACTIVE 0x40
#define LIS302DL_FULLSCALE_2_3 0x00
#define LIS302DL_FULLSCALE_9_2 0x20
#define LIS302DL_SELFTEST_NORMAL 0x00
#define LIS302DL_SELFTEST_P 0x10
#define LIS302DL_SELFTEST_M 0x08
#define LIS302DL_X_ENABLE 0x01
#define LIS302DL_Y_ENABLE 0x02
#define LIS302DL_Z_ENABLE 0x04
#define LIS302DL_XYZ_ENABLE 0x07
#define LIS302DL_SENSITIVITY_2_3G 18 /* 18 mg/digit*/
#define LIS302DL_SENSITIVITY_9_2G 72 /* 72 mg/digit*/
/*******************************************************************************
* CTRL_REG2 Regsiter: Control Register 2
* Read Write register
* Default value: 0x00
* 7 SIM: SPI Serial Interface Mode Selection.
* 0 - 4 wire interface
* 1 - 3 wire interface
* 6 BOOT: Reboot memory content
* 0 - normal mode
* 1 - reboot memory content
* 5 Reserved
* 4 FDS: Filtered data selection.
* 0 - internal filter bypassed
* 1 - data from internal filter sent to output register
* 3 HP FF_WU2: High pass filter enabled for FreeFall/WakeUp#2.
* 0 - filter bypassed
* 1 - filter enabled
* 2 HP FF_WU1: High pass filter enabled for FreeFall/WakeUp#1.
* 0 - filter bypassed
* 1 - filter enabled
* 1:0 HP coeff2-HP coeff1 High pass filter cut-off frequency (ft) configuration.
* ft= ODR[hz]/6*HP coeff
* HP coeff2 | HP coeff1 | HP coeff
* -------------------------------------------
* 0 | 0 | 8
* 0 | 1 | 16
* 1 | 0 | 32
* 1 | 1 | 64
* HP coeff | ft[hz] | ft[hz] |
* |ODR 100Hz | ODR 400Hz |
* --------------------------------------------
* 00 | 2 | 8 |
* 01 | 1 | 4 |
* 10 | 0.5 | 2 |
* 11 | 0.25 | 1 |
*******************************************************************************/
#define LIS302DL_CTRL_REG2_ADDR 0x21
#define LIS302DL_SERIALINTERFACE_4WIRE 0x00
#define LIS302DL_SERIALINTERFACE_3WIRE 0x80
#define LIS302DL_BOOT_NORMALMODE 0x00
#define LIS302DL_BOOT_REBOOTMEMORY 0x40
#define LIS302DL_FILTEREDDATASELECTION_BYPASSED 0x00
#define LIS302DL_FILTEREDDATASELECTION_OUTPUTREGISTER 0x20
#define LIS302DL_HIGHPASSFILTERINTERRUPT_OFF 0x00
#define LIS302DL_HIGHPASSFILTERINTERRUPT_1 0x04
#define LIS302DL_HIGHPASSFILTERINTERRUPT_2 0x08
#define LIS302DL_HIGHPASSFILTERINTERRUPT_1_2 0x0C
#define LIS302DL_HIGHPASSFILTER_LEVEL_0 0x00
#define LIS302DL_HIGHPASSFILTER_LEVEL_1 0x01
#define LIS302DL_HIGHPASSFILTER_LEVEL_2 0x02
#define LIS302DL_HIGHPASSFILTER_LEVEL_3 0x03
/*******************************************************************************
* CTRL_REG3 Register: Interrupt Control Register
* Read Write register
* Default value: 0x00
* 7 IHL active: Interrupt active high/low.
* 0 - active high
* 1 - active low
* 6 PP_OD: push-pull/open-drain.
* 0 - push-pull
* 1 - open-drain
* 5:3 I2_CFG2 - I2_CFG0 Data signal on INT2 pad control bits
* 2:0 I1_CFG2 - I1_CFG0 Data signal on INT1 pad control bits
* I1(2)_CFG2 | I1(2)_CFG1 | I1(2)_CFG0 | INT1(2) Pad
* ----------------------------------------------------------
* 0 | 0 | 0 | GND
* 0 | 0 | 1 | FreeFall/WakeUp#1
* 0 | 1 | 0 | FreeFall/WakeUp#2
* 0 | 1 | 1 | FreeFall/WakeUp#1 or FreeFall/WakeUp#2
* 1 | 0 | 0 | Data ready
* 1 | 1 | 1 | Click interrupt
*******************************************************************************/
#define LIS302DL_CTRL_REG3_ADDR 0x22
/*******************************************************************************
* HP_FILTER_RESET Register: Dummy register. Reading at this address zeroes
* instantaneously the content of the internal high pass filter. If the high pass
* filter is enabled all three axes are instantaneously set to 0g.
* This allows to overcome the settling time of the high pass filter.
* Read only register
* Default value: Dummy
*******************************************************************************/
#define LIS302DL_HP_FILTER_RESET_REG_ADDR 0x23
/*******************************************************************************
* STATUS_REG Register: Status Register
* Default value: 0x00
* 7 ZYXOR: X, Y and Z axis data overrun.
* 0: no overrun has occurred
* 1: new data has overwritten the previous one before it was read
* 6 ZOR: Z axis data overrun.
* 0: no overrun has occurred
* 1: new data for Z-axis has overwritten the previous one before it was read
* 5 yOR: y axis data overrun.
* 0: no overrun has occurred
* 1: new data for y-axis has overwritten the previous one before it was read
* 4 XOR: X axis data overrun.
* 0: no overrun has occurred
* 1: new data for X-axis has overwritten the previous one before it was read
* 3 ZYXDA: X, Y and Z axis new data available
* 0: a new set of data is not yet available
* 1: a new set of data is available
* 2 ZDA: Z axis new data available.
* 0: a new set of data is not yet available
* 1: a new data for Z axis is available
* 1 YDA: Y axis new data available
* 0: a new set of data is not yet available
* 1: a new data for Y axis is available
* 0 XDA: X axis new data available
* 0: a new set of data is not yet available
* 1: a new data for X axis is available
*******************************************************************************/
#define LIS302DL_STATUS_REG_ADDR 0x27
/*******************************************************************************
* OUT_X Register: X-axis output Data
* Read only register
* Default value: output
* 7:0 XD7-XD0: X-axis output Data
*******************************************************************************/
#define LIS302DL_OUT_X_ADDR 0x29
/*******************************************************************************
* OUT_Y Register: Y-axis output Data
* Read only register
* Default value: output
* 7:0 YD7-YD0: Y-axis output Data
*******************************************************************************/
#define LIS302DL_OUT_Y_ADDR 0x2B
/*******************************************************************************
* OUT_Z Register: Z-axis output Data
* Read only register
* Default value: output
* 7:0 ZD7-ZD0: Z-axis output Data
*******************************************************************************/
#define LIS302DL_OUT_Z_ADDR 0x2D
/*******************************************************************************
* FF_WW_CFG_1 Register: Configuration register for Interrupt 1 source.
* Read write register
* Default value: 0x00
* 7 AOI: AND/OR combination of Interrupt events.
* 0: OR combination of interrupt events
* 1: AND combination of interrupt events
* 6 LIR: Latch/not latch interrupt request
* 0: interrupt request not latched
* 1: interrupt request latched
* 5 ZHIE: Enable interrupt generation on Z high event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value higher than preset threshold
* 4 ZLIE: Enable interrupt generation on Z low event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value lower than preset threshold
* 3 YHIE: Enable interrupt generation on Y high event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value higher than preset threshold
* 2 YLIE: Enable interrupt generation on Y low event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value lower than preset threshold
* 1 XHIE: Enable interrupt generation on X high event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value higher than preset threshold
* 0 XLIE: Enable interrupt generation on X low event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value lower than preset threshold
*******************************************************************************/
#define LIS302DL_FF_WU_CFG1_REG_ADDR 0x30
#define LIS302DL_INTERRUPTREQUEST_NOTLATCHED 0x00
#define LIS302DL_INTERRUPTREQUEST_LATCHED 0x40
#define LIS302DL_CLICKINTERRUPT_XYZ_DISABLE 0x00
#define LIS302DL_CLICKINTERRUPT_X_ENABLE 0x01
#define LIS302DL_CLICKINTERRUPT_Y_ENABLE 0x04
#define LIS302DL_CLICKINTERRUPT_Z_ENABLE 0x10
#define LIS302DL_CLICKINTERRUPT_XYZ_ENABLE 0x15
#define LIS302DL_DOUBLECLICKINTERRUPT_XYZ_DISABLE 0x00
#define LIS302DL_DOUBLECLICKINTERRUPT_X_ENABLE 0x02
#define LIS302DL_DOUBLECLICKINTERRUPT_Y_ENABLE 0x08
#define LIS302DL_DOUBLECLICKINTERRUPT_Z_ENABLE 0x20
#define LIS302DL_DOUBLECLICKINTERRUPT_XYZ_ENABLE 0x2A
/*******************************************************************************
* FF_WU_SRC_1 Register: Interrupt 1 source register.
* Reading at this address clears FF_WU_SRC_1 register and the FF, WU 1 interrupt
* and allow the refreshment of data in the FF_WU_SRC_1 register if the latched option
* was chosen.
* Read only register
* Default value: 0x00
* 7 Reserved
* 6 IA: Interrupt active.
* 0: no interrupt has been generated
* 1: one or more interrupts have been generated
* 5 ZH: Z high.
* 0: no interrupt
* 1: ZH event has occurred
* 4 ZL: Z low.
* 0: no interrupt
* 1: ZL event has occurred
* 3 YH: Y high.
* 0: no interrupt
* 1: YH event has occurred
* 2 YL: Y low.
* 0: no interrupt
* 1: YL event has occurred
* 1 YH: X high.
* 0: no interrupt
* 1: XH event has occurred
* 0 YL: X low.
* 0: no interrupt
* 1: XL event has occurred
*******************************************************************************/
#define LIS302DL_FF_WU_SRC1_REG_ADDR 0x31
/*******************************************************************************
* FF_WU_THS_1 Register: Threshold register
* Read Write register
* Default value: 0x00
* 7 DCRM: Reset mode selection.
* 0 - counter resetted
* 1 - counter decremented
* 6 THS6-THS0: Free-fall/wake-up threshold value.
*******************************************************************************/
#define LIS302DL_FF_WU_THS1_REG_ADDR 0x32
/*******************************************************************************
* FF_WU_DURATION_1 Register: duration Register
* Read Write register
* Default value: 0x00
* 7:0 D7-D0 Duration value. (Duration steps and maximum values depend on the ODR chosen)
******************************************************************************/
#define LIS302DL_FF_WU_DURATION1_REG_ADDR 0x33
/*******************************************************************************
* FF_WW_CFG_2 Register: Configuration register for Interrupt 2 source.
* Read write register
* Default value: 0x00
* 7 AOI: AND/OR combination of Interrupt events.
* 0: OR combination of interrupt events
* 1: AND combination of interrupt events
* 6 LIR: Latch/not latch interrupt request
* 0: interrupt request not latched
* 1: interrupt request latched
* 5 ZHIE: Enable interrupt generation on Z high event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value higher than preset threshold
* 4 ZLIE: Enable interrupt generation on Z low event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value lower than preset threshold
* 3 YHIE: Enable interrupt generation on Y high event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value higher than preset threshold
* 2 YLIE: Enable interrupt generation on Y low event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value lower than preset threshold
* 1 XHIE: Enable interrupt generation on X high event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value higher than preset threshold
* 0 XLIE: Enable interrupt generation on X low event.
* 0: disable interrupt request
* 1: enable interrupt request on measured accel. value lower than preset threshold
*******************************************************************************/
#define LIS302DL_FF_WU_CFG2_REG_ADDR 0x34
/*******************************************************************************
* FF_WU_SRC_2 Register: Interrupt 2 source register.
* Reading at this address clears FF_WU_SRC_2 register and the FF, WU 2 interrupt
* and allow the refreshment of data in the FF_WU_SRC_2 register if the latched option
* was chosen.
* Read only register
* Default value: 0x00
* 7 Reserved
* 6 IA: Interrupt active.
* 0: no interrupt has been generated
* 1: one or more interrupts have been generated
* 5 ZH: Z high.
* 0: no interrupt
* 1: ZH event has occurred
* 4 ZL: Z low.
* 0: no interrupt
* 1: ZL event has occurred
* 3 YH: Y high.
* 0: no interrupt
* 1: YH event has occurred
* 2 YL: Y low.
* 0: no interrupt
* 1: YL event has occurred
* 1 YH: X high.
* 0: no interrupt
* 1: XH event has occurred
* 0 YL: X low.
* 0: no interrupt
* 1: XL event has occurred
*******************************************************************************/
#define LIS302DL_FF_WU_SRC2_REG_ADDR 0x35
/*******************************************************************************
* FF_WU_THS_2 Register: Threshold register
* Read Write register
* Default value: 0x00
* 7 DCRM: Reset mode selection.
* 0 - counter resetted
* 1 - counter decremented
* 6 THS6-THS0: Free-fall/wake-up threshold value.
*******************************************************************************/
#define LIS302DL_FF_WU_THS2_REG_ADDR 0x36
/*******************************************************************************
* FF_WU_DURATION_2 Register: duration Register
* Read Write register
* Default value: 0x00
* 7:0 D7-D0 Duration value. (Duration steps and maximum values depend on the ODR chosen)
******************************************************************************/
#define LIS302DL_FF_WU_DURATION2_REG_ADDR 0x37
/******************************************************************************
* CLICK_CFG Register: click Register
* Read Write register
* Default value: 0x00
* 7 Reserved
* 6 LIR: Latch Interrupt request.
* 0: interrupt request not latched
* 1: interrupt request latched
* 5 Double_Z: Enable interrupt generation on double click event on Z axis.
* 0: disable interrupt request
* 1: enable interrupt request
* 4 Single_Z: Enable interrupt generation on single click event on Z axis.
* 0: disable interrupt request
* 1: enable interrupt request
* 3 Double_Y: Enable interrupt generation on double click event on Y axis.
* 0: disable interrupt request
* 1: enable interrupt request
* 2 Single_Y: Enable interrupt generation on single click event on Y axis.
* 0: disable interrupt request
* 1: enable interrupt request
* 1 Double_X: Enable interrupt generation on double click event on X axis.
* 0: disable interrupt request
* 1: enable interrupt request
* 0 Single_y: Enable interrupt generation on single click event on X axis.
* 0: disable interrupt request
* 1: enable interrupt request
******************************************************************************/
#define LIS302DL_CLICK_CFG_REG_ADDR 0x38
/******************************************************************************
* CLICK_SRC Register: click status Register
* Read only register
* Default value: 0x00
* 7 Reserved
* 6 IA: Interrupt active.
* 0: no interrupt has been generated
* 1: one or more interrupts have been generated
* 5 Double_Z: Double click on Z axis event.
* 0: no interrupt
* 1: Double Z event has occurred
* 4 Single_Z: Z low.
* 0: no interrupt
* 1: Single Z event has occurred
* 3 Double_Y: Y high.
* 0: no interrupt
* 1: Double Y event has occurred
* 2 Single_Y: Y low.
* 0: no interrupt
* 1: Single Y event has occurred
* 1 Double_X: X high.
* 0: no interrupt
* 1: Double X event has occurred
* 0 Single_X: X low.
* 0: no interrupt
* 1: Single X event has occurred
*******************************************************************************/
#define LIS302DL_CLICK_SRC_REG_ADDR 0x39
/*******************************************************************************
* CLICK_THSY_X Register: Click threshold Y and X register
* Read Write register
* Default value: 0x00
* 7:4 THSy3-THSy0: Click threshold on Y axis, step 0.5g
* 3:0 THSx3-THSx0: Click threshold on X axis, step 0.5g
*******************************************************************************/
#define LIS302DL_CLICK_THSY_X_REG_ADDR 0x3B
/*******************************************************************************
* CLICK_THSZ Register: Click threshold Z register
* Read Write register
* Default value: 0x00
* 7:4 Reserved
* 3:0 THSz3-THSz0: Click threshold on Z axis, step 0.5g
*******************************************************************************/
#define LIS302DL_CLICK_THSZ_REG_ADDR 0x3C
/*******************************************************************************
* CLICK_TimeLimit Register: Time Limit register
* Read Write register
* Default value: 0x00
* 7:0 Dur7-Dur0: Time Limit value, step 0.5g
*******************************************************************************/
#define LIS302DL_CLICK_TIMELIMIT_REG_ADDR 0x3D
/*******************************************************************************
* CLICK_Latency Register: Latency register
* Read Write register
* Default value: 0x00
* 7:0 Lat7-Lat0: Latency value, step 1msec
*******************************************************************************/
#define LIS302DL_CLICK_LATENCY_REG_ADDR 0x3E
/*******************************************************************************
* CLICK_Window Register: Window register
* Read Write register
* Default value: 0x00
* 7:0 Win7-Win0: Window value, step 1msec
*******************************************************************************/
#define LIS302DL_CLICK_WINDOW_REG_ADDR 0x3F
void InitializeAccelerometer();
bool PingAccelerometer();
void SetAccelerometerMainConfig(uint8_t config);
void SetAccelerometerFilterConfig(uint8_t config);
void SetAccelerometerInterruptConfig(uint8_t config);
void ResetAccelerometer();
void ResetAccelerometerFilter();
void ReadRawAccelerometerData(int8_t *values);
#endif