fxas21002_poll.c

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/*
 * The Clear BSD License
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 * Copyright 2016-2017 NXP
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/**
 * @file fxas21002_poll.c
 * @brief The fxas21002_poll.c file implements the ISSDK FXAS21002 sensor driver
 *        example demonstration with polling mode.
 */

/*  SDK Includes */
#include "board.h"
#include "pin_mux.h"
#include "clock_config.h"
#include "fsl_debug_console.h"

/* CMSIS Includes */
#include "Driver_I2C.h"

/* ISSDK Includes */
#include "issdk_hal.h"
#include "fxas21002_drv.h"

/*******************************************************************************
 * Constants
 ******************************************************************************/
/*! Prepare the register write list to configure FXAS21002 in non-FIFO mode. */
const registerwritelist_t fxas21002_Config_Normal[] = {
    /*! Configure CTRL_REG1 register to put FXAS21002 to 12.5Hz sampling rate. */
    {FXAS21002_CTRL_REG1, FXAS21002_CTRL_REG1_DR_12_5HZ, FXAS21002_CTRL_REG1_DR_MASK},
    __END_WRITE_DATA__};

/*! Prepare the register read list to read FXAS21002 DataReady status. */
const registerreadlist_t fxas21002_DRDY[] = {{.readFrom = FXAS21002_STATUS, .numBytes = 1}, __END_READ_DATA__};

/*! Prepare the register read list to read the raw gyro data from the FXAS21002. */
const registerreadlist_t fxas21002_Output_Values[] = {
    {.readFrom = FXAS21002_OUT_X_MSB, .numBytes = FXAS21002_GYRO_DATA_SIZE}, __END_READ_DATA__};

/*******************************************************************************
 * Code
 ******************************************************************************/
/*!
 * @brief Main function
 */
int main(void)
{
    int32_t status;
    uint8_t dataReady;
    uint8_t data[FXAS21002_GYRO_DATA_SIZE];
    fxas21002_gyrodata_t rawData;

    ARM_DRIVER_I2C *I2Cdrv = &I2C_S_DRIVER; // Now using the shield.h value!!!
    fxas21002_i2c_sensorhandle_t FXAS21002drv;

    /*! Initialize the MCU hardware. */
    BOARD_InitPins();
    BOARD_BootClockRUN();
    BOARD_InitDebugConsole();

    PRINTF("\r\n ISSDK FXAS21002 sensor driver example demonstration with poll mode\r\n");

    /*! Initialize the I2C driver. */
    status = I2Cdrv->Initialize(I2C_S_SIGNAL_EVENT);
    if (ARM_DRIVER_OK != status)
    {
        PRINTF("\r\n I2C Initialization Failed\r\n");
        return -1;
    }

    /*! Set the I2C Power mode. */
    status = I2Cdrv->PowerControl(ARM_POWER_FULL);
    if (ARM_DRIVER_OK != status)
    {
        PRINTF("\r\n I2C Power Mode setting Failed\r\n");
        return -1;
    }

    /*! Set the I2C bus speed. */
    status = I2Cdrv->Control(ARM_I2C_BUS_SPEED, ARM_I2C_BUS_SPEED_FAST);
    if (ARM_DRIVER_OK != status)
    {
        PRINTF("\r\n I2C Control Mode setting Failed\r\n");
        return -1;
    }

    /*! Initialize the FXAS21002 sensor driver. */
    status = FXAS21002_I2C_Initialize(&FXAS21002drv, &I2C_S_DRIVER, I2C_S_DEVICE_INDEX, FXAS21002_I2C_ADDR,
                                      FXAS21002_WHO_AM_I_WHOAMI_PROD_VALUE);
    if (SENSOR_ERROR_NONE != status)
    {
        PRINTF("\r\n Sensor Initialization Failed\r\n");
        return -1;
    }
    PRINTF("\r\n Successfully Initiliazed Sensor\r\n");

    /*!  Set the task to be executed while waiting for I2C transactions to complete. */
    FXAS21002_I2C_SetIdleTask(&FXAS21002drv, (registeridlefunction_t)SMC_SetPowerModeWait, SMC);

    /*! Configure the FXAS21002 sensor driver. */
    status = FXAS21002_I2C_Configure(&FXAS21002drv, fxas21002_Config_Normal);
    if (SENSOR_ERROR_NONE != status)
    {
        PRINTF("\r\n FXAS21002 Sensor Configuration Failed, Err = %d\r\n", status);
        return -1;
    }
    PRINTF("\r\n Successfully Applied FXAS21002 Sensor Configuration\r\n");

    for (;;) /* Forever loop */
    {
        /*! Wait for data ready from the FXAS21002. */
        status = FXAS21002_I2C_ReadData(&FXAS21002drv, fxas21002_DRDY, &dataReady);
        if (0 == (dataReady & FXAS21002_DR_STATUS_ZYXDR_MASK))
        {
            continue;
        }

        /*! Read the raw sensor data from the FXAS21002. */
        status = FXAS21002_I2C_ReadData(&FXAS21002drv, fxas21002_Output_Values, data);
        if (ARM_DRIVER_OK != status)
        {
            PRINTF("\r\n Read Failed. \r\n");
            return -1;
        }

        /*! Convert the raw sensor data to signed 16-bit container for display to the debug port. */
        rawData.gyro[0] = ((int16_t)data[0] << 8) | data[1];
        rawData.gyro[1] = ((int16_t)data[2] << 8) | data[3];
        rawData.gyro[2] = ((int16_t)data[4] << 8) | data[5];

        /* NOTE: PRINTF is relatively expensive in terms of CPU time, specially when used with-in execution loop. */
        PRINTF("\r\n Gyro X = %d  Y = %d  Z = %d\r\n", rawData.gyro[0], rawData.gyro[1], rawData.gyro[2]);
        ASK_USER_TO_RESUME(100); /* Ask for user input after processing 100 samples. */
    }
}