mma8491q_example.c File Reference

The mma8491q_example.c file implements the ISSDK MMA8491Q sensor driver example demonstration with Timers. More...

#include "board.h"
#include "pin_mux.h"
#include "fsl_lptmr.h"
#include "clock_config.h"
#include "fsl_debug_console.h"
#include "Driver_I2C.h"
#include "issdk_hal.h"
#include "gpio_driver.h"
#include "mma8491q_drv.h"

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Macros
#define	mma8491q_en_callback   LPTMR0_IRQHandler
#define	MMA8491Q_T_ODR_ms   100U
#define	LPTMR_T_CORRECTION_ms   2

Functions
void	mma8491q_en_delay ()
void	mma8491q_en_callback (void)
void	mma8491q_timer_fwk_init (uint32_t samplingInterval)
int	main (void)
	Main function. More...

Variables
const registerreadlist_t	cMma8491qStatus [] = {{.readFrom = MMA8491Q_STATUS, .numBytes = 1}, __END_READ_DATA__}
	Address of Status Register. More...
const registerreadlist_t	cMma8491qOutput []
	Address and size of Raw Acceleration Data. More...
volatile bool	bMma849qDataReady = false
gpioConfigKSDK_t	gGpioConfigInPins
GENERIC_DRIVER_GPIO *	pGpioDriver = &Driver_GPIO_KSDK

Detailed Description

The mma8491q_example.c file implements the ISSDK MMA8491Q sensor driver example demonstration with Timers.

Definition in file mma8491q_example.c.

Macro Definition Documentation

LPTMR_T_CORRECTION_ms

#define LPTMR_T_CORRECTION_ms   2

Definition at line 70 of file mma8491q_example.c.

Referenced by mma8491q_timer_fwk_init().

mma8491q_en_callback

#define mma8491q_en_callback   LPTMR0_IRQHandler

Definition at line 66 of file mma8491q_example.c.

MMA8491Q_T_ODR_ms

#define MMA8491Q_T_ODR_ms   100U

Definition at line 68 of file mma8491q_example.c.

Referenced by main().

Function Documentation

main()

int main

(

void

)

Main function.

Initialize the MCU hardware.

Initialize GREEN LED pin used by FRDM board

Initialize the I2C driver.

Set the I2C Power mode.

Set the I2C bus speed.

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

Initialize MMA8491_ODR Timer framework.

Process packets on Data ready Timer Expiry

Process packets only when data ready is indicated by the MMA8491Q.

Read the raw sensor data from the MMA8491Q.

Process the sample and convert the raw sensor data.

Definition at line 135 of file mma8491q_example.c.

References mma8491q_acceldata_t::accel, ASK_USER_TO_RESUME, bMma849qDataReady, BOARD_BootClockRUN, BOARD_InitDebugConsole(), BOARD_InitPins(), GENERIC_DRIVER_GPIO::clr_pin, data, GPIO_DIRECTION_IN, GPIO_DIRECTION_OUT, GREEN_LED, I2C_S_DEVICE_INDEX, I2C_S_DRIVER, I2C_S_SIGNAL_EVENT, int32_t(), MMA8491_EN, MMA8491_I2C_ADDR, MMA8491_XOUT, MMA8491_YOUT, MMA8491_ZOUT, MMA8491Q_DATA_SIZE, mma8491q_en_delay(), MMA8491Q_I2C_Initialize(), MMA8491Q_I2C_ReadData(), MMA8491Q_I2C_SetIdleTask(), MMA8491Q_STATUS_ZYXDR_MASK, MMA8491Q_T_ODR_ms, mma8491q_timer_fwk_init(), GENERIC_DRIVER_GPIO::pin_init, rawData, GENERIC_DRIVER_GPIO::read_pin, SENSOR_ERROR_NONE, GENERIC_DRIVER_GPIO::set_pin, SMC, SMC_SetPowerModeWait(), status, mma8491q_acceldata_t::tilt, fxls8962_acceldataUser_t::timestamp, and GENERIC_DRIVER_GPIO::toggle_pin.

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mma8491q_en_callback()

void mma8491q_en_callback

(

void

)

Definition at line 112 of file mma8491q_example.c.

References bMma849qDataReady.

mma8491q_en_delay()

void mma8491q_en_delay

(

)

Definition at line 99 of file mma8491q_example.c.

References MMA8491Q_T_ON_TYPICAL.

Referenced by main().

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mma8491q_timer_fwk_init()

void mma8491q_timer_fwk_init

(

uint32_t

samplingInterval

)

Definition at line 119 of file mma8491q_example.c.

References LPTMR_T_CORRECTION_ms.

Referenced by main().

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Variable Documentation

bMma849qDataReady

volatile bool bMma849qDataReady = false

Definition at line 85 of file mma8491q_example.c.

Referenced by main(), and mma8491q_en_callback().

cMma8491qOutput

const registerreadlist_t cMma8491qOutput[]

Initial value:

= {{.readFrom = MMA8491Q_OUT_X_MSB, .numBytes = MMA8491Q_DATA_SIZE},
                                              __END_READ_DATA__}

Address and size of Raw Acceleration Data.

Definition at line 79 of file mma8491q_example.c.

cMma8491qStatus

const registerreadlist_t cMma8491qStatus[] = {{.readFrom = MMA8491Q_STATUS, .numBytes = 1}, __END_READ_DATA__}

Address of Status Register.

Definition at line 76 of file mma8491q_example.c.

gGpioConfigInPins

gpioConfigKSDK_t gGpioConfigInPins

Initial value:

= 
    {
        .pinConfig = {kGPIO_DigitalInput, 0},
        .interruptMode = kPORT_InterruptOrDMADisabled,
        .portPinConfig = {0},
        .portPinConfig.mux = kPORT_MuxAsGpio,
}

Definition at line 86 of file mma8491q_example.c.

pGpioDriver

GENERIC_DRIVER_GPIO* pGpioDriver = &Driver_GPIO_KSDK

Definition at line 93 of file mma8491q_example.c.

Referenced by main().