fxls8962_freefall.c File Reference

The fxls8962_freefall.c file implements the ISSDK FXLS8962 sensor driver example demonstration for Freefall Detection. More...

#include "pin_mux.h"
#include "clock_config.h"
#include "board.h"
#include "fsl_debug_console.h"
#include "Driver_I2C.h"
#include "issdk_hal.h"
#include "gpio_driver.h"
#include "fxls8962_drv.h"
#include "systick_utils.h"

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Go to the source code of this file.

Macros
#define	SDCD_WT_DBCNT   0x0A /* Debounce count value. */
#define	SDCD_LTHS_LSB   0x33 /* Lower Threshold LSB value. */
#define	SDCD_LTHS_MSB   0x0F /* Lower Threshold MSB value. */
#define	SDCD_UTHS_LSB   0xCD /* Upper Threshold LSB value. */
#define	SDCD_UTHS_MSB   0x00 /* Upper Threshold MSB value. */

Functions
void	fxls8962_int_event_ready_callback (void *pUserData)
	This is the Sensor Data Ready ISR implementation. More...
int	main (void)
	Main function. More...

Variables
const registerwritelist_t	cFxls8962ConfigFreeFall []
	Register settings for free-fall detection. More...
const registerreadlist_t	cFxls8962FreeFallEvent []
	Address of SDCD Status Register. More...
volatile bool	gFxls8962EventReady = false

Detailed Description

The fxls8962_freefall.c file implements the ISSDK FXLS8962 sensor driver example demonstration for Freefall Detection.

Definition in file fxls8962_freefall.c.

Macro Definition Documentation

SDCD_LTHS_LSB

#define SDCD_LTHS_LSB   0x33 /* Lower Threshold LSB value. */

Definition at line 41 of file fxls8962_freefall.c.

SDCD_LTHS_MSB

#define SDCD_LTHS_MSB   0x0F /* Lower Threshold MSB value. */

Definition at line 42 of file fxls8962_freefall.c.

SDCD_UTHS_LSB

#define SDCD_UTHS_LSB   0xCD /* Upper Threshold LSB value. */

Definition at line 43 of file fxls8962_freefall.c.

SDCD_UTHS_MSB

#define SDCD_UTHS_MSB   0x00 /* Upper Threshold MSB value. */

Definition at line 44 of file fxls8962_freefall.c.

SDCD_WT_DBCNT

#define SDCD_WT_DBCNT   0x0A /* Debounce count value. */

Definition at line 40 of file fxls8962_freefall.c.

Function Documentation

fxls8962_int_event_ready_callback()

void fxls8962_int_event_ready_callback

(

void *

pUserData

)

This is the Sensor Data Ready ISR implementation.

Set flag to indicate Sensor has signalled data ready.

Definition at line 91 of file fxls8962_freefall.c.

References gFxls8962EventReady.

Referenced by main().

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main()

int main

(

void

)

Main function.

Initialize FXLS8962 pin used by FRDM board

Initialize the I2C driver.

Set the I2C Power mode.

Set the I2C bus speed.

Initialize the FXLS8962 sensor driver.

Set the task to be executed while waiting for I2C transactions to complete.

Configure the FXLS8962 sensor for Freefall detection Mode.

Clear the data ready flag, it will be set again by the ISR.

Read the Freefall event FLAGs from FXLS8962.

Display that a freefall event has been detected.

Definition at line 99 of file fxls8962_freefall.c.

References BOARD_BootClockRUN, BOARD_InitDebugConsole(), BOARD_InitPins(), BOARD_SystickEnable(), Driver_GPIO_KSDK, FXLS8962_I2C_ADDR, FXLS8962_I2C_Configure(), FXLS8962_I2C_Initialize(), FXLS8962_I2C_ReadData(), FXLS8962_I2C_SetIdleTask(), FXLS8962_INT1, fxls8962_int_event_ready_callback(), FXLS8962_SDCD_INT_SRC2_WT_EA_EVENT_NO, FXLS8962_SDCD_INT_SRC2_WT_EA_MASK, FXLS8962_WHOAMI_VALUE, fxls8962Driver, FXLS8964_WHOAMI_VALUE, FXLS8967_WHOAMI_VALUE, FXLS8974_WHOAMI_VALUE, gFxls8962EventReady, GPIO_DIRECTION_IN, I2C_S_DEVICE_INDEX, I2C_S_DRIVER, I2C_S_SIGNAL_EVENT, I2Cdrv, int32_t(), pGpioDriver, GENERIC_DRIVER_GPIO::pin_init, SENSOR_ERROR_NONE, SMC, SMC_SetPowerModeVlpr(), SMC_SetPowerModeWait(), and status.

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Variable Documentation

cFxls8962ConfigFreeFall

const registerwritelist_t cFxls8962ConfigFreeFall[]

Initial value:

= {
    
    {FXLS8962_SENS_CONFIG3, FXLS8962_SENS_CONFIG3_WAKE_ODR_100HZ, FXLS8962_SENS_CONFIG3_WAKE_ODR_MASK},
    
    {FXLS8962_SDCD_CONFIG1, FXLS8962_SDCD_CONFIG1_WT_ELE_EN | FXLS8962_SDCD_CONFIG1_X_WT_EN_EN |
                                FXLS8962_SDCD_CONFIG1_Y_WT_EN_EN | FXLS8962_SDCD_CONFIG1_Z_WT_EN_EN,
     FXLS8962_SDCD_CONFIG1_WT_ELE_MASK | FXLS8962_SDCD_CONFIG1_X_WT_EN_MASK | FXLS8962_SDCD_CONFIG1_Y_WT_EN_MASK |
         FXLS8962_SDCD_CONFIG1_Z_WT_EN_MASK},
    
    {FXLS8962_SDCD_CONFIG2, FXLS8962_SDCD_CONFIG2_SDCD_EN_EN | FXLS8962_SDCD_CONFIG2_REF_UPDM_FIXED_VAL |
                                FXLS8962_SDCD_CONFIG2_WT_DBCTM_CLEARED,
     FXLS8962_SDCD_CONFIG2_SDCD_EN_MASK | FXLS8962_SDCD_CONFIG2_REF_UPDM_MASK | FXLS8962_SDCD_CONFIG2_WT_DBCTM_MASK},
    
    {FXLS8962_INT_EN, FXLS8962_INT_EN_SDCD_WT_EN_EN, FXLS8962_INT_EN_SDCD_WT_EN_MASK},

    
    {FXLS8962_SDCD_WT_DBCNT, SDCD_WT_DBCNT, 0},
    
    {FXLS8962_SDCD_LTHS_LSB, SDCD_LTHS_LSB, 0},
    
    {FXLS8962_SDCD_LTHS_MSB, SDCD_LTHS_MSB, 0},
    
    {FXLS8962_SDCD_UTHS_LSB, SDCD_UTHS_LSB, 0},
    
    {FXLS8962_SDCD_UTHS_MSB, SDCD_UTHS_MSB, 0},
    __END_WRITE_DATA__}

Register settings for free-fall detection.

Definition at line 50 of file fxls8962_freefall.c.

cFxls8962FreeFallEvent

const registerreadlist_t cFxls8962FreeFallEvent[]

Initial value:

= {{.readFrom = FXLS8962_SDCD_INT_SRC2, .numBytes = 1},
                                                     __END_READ_DATA__}

Address of SDCD Status Register.

Definition at line 79 of file fxls8962_freefall.c.

gFxls8962EventReady

volatile bool gFxls8962EventReady = false

Definition at line 85 of file fxls8962_freefall.c.

Referenced by fxls8962_int_event_ready_callback(), and main().