The mma865x_auto-wake-sleep.c file implements the ISSDK MMA865x sensor example demonstrating configuring MMA8652 Accel and enabling detection motion detection event. 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 "mma865x_drv.h"

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Macros
#define	MT_FFMT_THS 0x07 /* Motion Threshold Value. */

#define	MT_FFMT_COUNT 0x00

#define	ASLP_COUNT 0x14

Functions
void	mma865x_isr_callback (void *pUserData)
	This is the Sensor ISR implementation. More...

int	main (void)
	This is the The main function implementation. More...

Variables
const registerwritelist_t	mma865x_autowake_motiondet_config []

const registerreadlist_t	gMma8562ReadSysMode [] = {{.readFrom = MMA865x_SYSMOD, .numBytes = 1}, __END_READ_DATA__}
	Read register list for MMA8562 to read SysMode Register. More...

volatile bool	gMma865xIntFlag = false

Detailed Description

The mma865x_auto-wake-sleep.c file implements the ISSDK MMA865x sensor example demonstrating configuring MMA8652 Accel and enabling detection motion detection event.

Definition in file mma865x_auto-wake-sleep.c.

Macro Definition Documentation

◆ ASLP_COUNT

#define ASLP_COUNT 0x14

Definition at line 40 of file mma865x_auto-wake-sleep.c.

◆ MT_FFMT_COUNT

#define MT_FFMT_COUNT 0x00

Definition at line 39 of file mma865x_auto-wake-sleep.c.

◆ MT_FFMT_THS

#define MT_FFMT_THS 0x07 /* Motion Threshold Value. */

Definition at line 38 of file mma865x_auto-wake-sleep.c.

Function Documentation

◆ main()

int main ( void )

This is the The main function implementation.

This function invokes board initializes routines, then then brings up the sensor and finally enters an endless loop to continuously read available samples.

Parameters

[in] void This is no input parameter.

Returns: void There is no return value.

Constraints:: None
No

Initialize the MCU hardware.

Initialize MMA865x pin used by FRDM board

Initialize RGB LED pin used by FRDM board

Initialize the I2C driver.

Set the I2C Power mode.

Set the I2C bus speed.

Initialize the MMA865x sensor driver.

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

Check whether Motion Interrupt has occurred and event status is Wake mode

Wake Mode Detected.

Clear the sensor event interrupt flag, it will be set again by the ISR.

Put MCU in low-power sleep.

Definition at line 102 of file mma865x_auto-wake-sleep.c.

References BOARD_BootClockRUN, BOARD_InitDebugConsole(), BOARD_InitPins(), GENERIC_DRIVER_GPIO::clr_pin, Driver_GPIO_KSDK, gMma865xIntFlag, GPIO_DIRECTION_IN, GPIO_DIRECTION_OUT, GREEN_LED, I2C_S_DEVICE_INDEX, I2C_S_DRIVER, I2C_S_SIGNAL_EVENT, I2Cdrv, int32_t(), MMA8652_I2C_ADDR, MMA8652_INT1, MMA8652_WHOAMI_VALUE, MMA865x_I2C_Configure(), MMA865x_I2C_Initialize(), MMA865x_I2C_ReadData(), MMA865x_I2C_SetIdleTask(), mma865x_isr_callback(), MMA865x_SYSMOD_SYSMOD_WAKE, GENERIC_DRIVER_GPIO::pin_init, RED_LED, SENSOR_ERROR_NONE, GENERIC_DRIVER_GPIO::set_pin, SMC, SMC_SetPowerModeVlpr(), SMC_SetPowerModeWait(), and status.

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◆ mma865x_isr_callback()

void mma865x_isr_callback ( void * pUserData )

This is the Sensor ISR implementation.

This function sets the flag which indicates if a new sample(s) is available for reading or new event has occurred.

Parameters

[in] pUserData This is a void pointer to the instance of the user specific data structure for the ISR.

Returns: void There is no return value.

Constraints:: None
Yes

Set flag to indicate Sensor has detected an event.

Definition at line 88 of file mma865x_auto-wake-sleep.c.

References gMma865xIntFlag.

Referenced by main().

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Variable Documentation

◆ gMma8562ReadSysMode

const registerreadlist_t gMma8562ReadSysMode[] = {{.readFrom = MMA865x_SYSMOD, .numBytes = 1}, __END_READ_DATA__}

Read register list for MMA8562 to read SysMode Register.

Definition at line 69 of file mma865x_auto-wake-sleep.c.

◆ gMma865xIntFlag

volatile bool gMma865xIntFlag = false

Definition at line 74 of file mma865x_auto-wake-sleep.c.

Referenced by main(), and mma865x_isr_callback().

◆ mma865x_autowake_motiondet_config

const registerwritelist_t mma865x_autowake_motiondet_config[]

Initial value:

= {
    
    {MMA865x_FF_MT_CFG, MMA865x_FF_MT_CFG_OAE_MOTION | MMA865x_FF_MT_CFG_YEFE_EN | MMA865x_FF_MT_CFG_XEFE_EN,
     MMA865x_FF_MT_CFG_OAE_MASK | MMA865x_FF_MT_CFG_YEFE_MASK | MMA865x_FF_MT_CFG_XEFE_MASK},
    
    {MMA865x_FF_MT_THS, MT_FFMT_THS, MMA865x_FF_MT_THS_THS_MASK},
     
    {MMA865x_FF_MT_COUNT, MT_FFMT_COUNT, 0},
    {MMA865x_ASLP_COUNT, ASLP_COUNT, 0},
    
    {MMA865x_CTRL_REG1, MMA865x_CTRL_REG1_ACTIVE_STANDBY | MMA865x_CTRL_REG1_F_READ_NORMAL | MMA865x_CTRL_REG1_DR_800HZ | MMA865x_CTRL_REG1_ASLP_RATE_1_56HZ,
     MMA865x_CTRL_REG1_ACTIVE_MASK | MMA865x_CTRL_REG1_F_READ_MASK | MMA865x_CTRL_REG1_DR_MASK | MMA865x_CTRL_REG1_ASLP_RATE_MASK},
    
    {MMA865x_CTRL_REG2, MMA865x_CTRL_REG2_MODS_LP | MMA865x_CTRL_REG2_SLPE_EN | MMA865x_CTRL_REG2_SMODS_LP,
     MMA865x_CTRL_REG2_MODS_MASK | MMA865x_CTRL_REG2_SLPE_MASK | MMA865x_CTRL_REG2_SMODS_MASK},
    
    {MMA865x_CTRL_REG3, MMA865x_CTRL_REG3_IPOL_ACTIVE_HIGH | MMA865x_CTRL_REG3_WAKE_FF_MT_EN,
     MMA865x_CTRL_REG3_IPOL_MASK | MMA865x_CTRL_REG3_WAKE_FF_MT_MASK},
    
                {MMA865x_CTRL_REG4, MMA865x_CTRL_REG4_INT_EN_FF_MT_EN, MMA865x_CTRL_REG4_INT_EN_FF_MT_MASK},
    {MMA865x_CTRL_REG5, MMA865x_CTRL_REG5_INT_CFG_FF_MT_INT1, MMA865x_CTRL_REG5_INT_CFG_FF_MT_MASK}, 
    __END_WRITE_DATA__}

Definition at line 45 of file mma865x_auto-wake-sleep.c.

Macros

Functions

Variables