driver_mpu6050_dmp_pedometer_test.c

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#include "driver_mpu6050_dmp_pedometer_test.h"
#include <stdlib.h>
 
static mpu6050_handle_t gs_handle;        
static int16_t gs_accel_raw[128][3];      
static float gs_accel_g[128][3];          
static int16_t gs_gyro_raw[128][3];       
static float gs_gyro_dps[128][3];         
static int32_t gs_quat[128][4];           
static float gs_pitch[128];               
static float gs_roll[128];                
static float gs_yaw[128];                 

uint8_t mpu6050_dmp_pedometer_test_irq_handler(void)
{
    if (mpu6050_irq_handler(&gs_handle) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t mpu6050_dmp_pedometer_test(mpu6050_address_t addr, uint32_t times)
{
    uint8_t res;
    uint32_t ms;
    uint32_t ms_check;
    uint32_t cnt;
    uint32_t cnt_check;
    uint32_t i;
    uint16_t m;
    uint16_t m_check;
    int32_t gyro_offset_raw[3];
    int32_t accel_offset_raw[3];
    int32_t gyro_offset[3];
    int32_t accel_offset[3];
    mpu6050_info_t info;
    
    /* link interface function */
    DRIVER_MPU6050_LINK_INIT(&gs_handle, mpu6050_handle_t);
    DRIVER_MPU6050_LINK_IIC_INIT(&gs_handle, mpu6050_interface_iic_init);
    DRIVER_MPU6050_LINK_IIC_DEINIT(&gs_handle, mpu6050_interface_iic_deinit);
    DRIVER_MPU6050_LINK_IIC_READ(&gs_handle, mpu6050_interface_iic_read);
    DRIVER_MPU6050_LINK_IIC_WRITE(&gs_handle, mpu6050_interface_iic_write);
    DRIVER_MPU6050_LINK_DELAY_MS(&gs_handle, mpu6050_interface_delay_ms);
    DRIVER_MPU6050_LINK_DEBUG_PRINT(&gs_handle, mpu6050_interface_debug_print);
    DRIVER_MPU6050_LINK_RECEIVE_CALLBACK(&gs_handle, mpu6050_interface_receive_callback);
    
    /* get information */
    res = mpu6050_info(&info);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: get info failed.\n");
       
        return 1;
    }
    else
    {
        /* print chip info */
        mpu6050_interface_debug_print("mpu6050: chip is %s.\n", info.chip_name);
        mpu6050_interface_debug_print("mpu6050: manufacturer is %s.\n", info.manufacturer_name);
        mpu6050_interface_debug_print("mpu6050: interface is %s.\n", info.interface);
        mpu6050_interface_debug_print("mpu6050: driver version is %d.%d.\n", info.driver_version / 1000, (info.driver_version % 1000) / 100);
        mpu6050_interface_debug_print("mpu6050: min supply voltage is %0.1fV.\n", info.supply_voltage_min_v);
        mpu6050_interface_debug_print("mpu6050: max supply voltage is %0.1fV.\n", info.supply_voltage_max_v);
        mpu6050_interface_debug_print("mpu6050: max current is %0.2fmA.\n", info.max_current_ma);
        mpu6050_interface_debug_print("mpu6050: max temperature is %0.1fC.\n", info.temperature_max);
        mpu6050_interface_debug_print("mpu6050: min temperature is %0.1fC.\n", info.temperature_min);
    }
    
    /* start dmp pedometer test */
    mpu6050_interface_debug_print("mpu6050: start dmp pedometer test.\n");
    
    /* set the addr pin */
    res = mpu6050_set_addr_pin(&gs_handle, addr);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set addr pin failed.\n");
       
        return 1;
    }
    
    /* init */
    res = mpu6050_init(&gs_handle);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: init failed.\n");
       
        return 1;
    }
    
    /* delay 100 ms */
    mpu6050_interface_delay_ms(100);
    
    /* disable sleep */
    res = mpu6050_set_sleep(&gs_handle, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set sleep failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* run the self test */
    res = mpu6050_self_test(&gs_handle, gyro_offset_raw, accel_offset_raw);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: self test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* set pll x */
    res = mpu6050_set_clock_source(&gs_handle, MPU6050_CLOCK_SOURCE_PLL_X_GYRO);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set clock source failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* set 50Hz */
    res = mpu6050_set_sample_rate_divider(&gs_handle, (1000 / 50) - 1);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set sample rate divider failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* ±2g */
    res = mpu6050_set_accelerometer_range(&gs_handle, MPU6050_ACCELEROMETER_RANGE_2G);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set accelerometer range failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* ±2000dps */
    res = mpu6050_set_gyroscope_range(&gs_handle, MPU6050_GYROSCOPE_RANGE_2000DPS);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set gyroscope range failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* set low pass filter 3 */
    res = mpu6050_set_low_pass_filter(&gs_handle, MPU6050_LOW_PASS_FILTER_3);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set low pass filter failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable temperature sensor */
    res = mpu6050_set_temperature_sensor(&gs_handle, MPU6050_BOOL_TRUE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set temperature sensor failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable cycle wake up */
    res = mpu6050_set_cycle_wake_up(&gs_handle, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set cycle wake up failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* set wake up frequency 1.25Hz */
    res = mpu6050_set_wake_up_frequency(&gs_handle, MPU6050_WAKE_UP_FREQUENCY_1P25_HZ);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set wake up frequency failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable acc x */
    res = mpu6050_set_standby_mode(&gs_handle, MPU6050_SOURCE_ACC_X, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set standby mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable acc y */
    res = mpu6050_set_standby_mode(&gs_handle, MPU6050_SOURCE_ACC_Y, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set standby mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable acc z */
    res = mpu6050_set_standby_mode(&gs_handle, MPU6050_SOURCE_ACC_Z, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set standby mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable gyro x */
    res = mpu6050_set_standby_mode(&gs_handle, MPU6050_SOURCE_GYRO_X, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set standby mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable gyro y */
    res = mpu6050_set_standby_mode(&gs_handle, MPU6050_SOURCE_GYRO_Y, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set standby mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable gyro z */
    res = mpu6050_set_standby_mode(&gs_handle, MPU6050_SOURCE_GYRO_Z, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set standby mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable gyroscope x test */
    res = mpu6050_set_gyroscope_test(&gs_handle, MPU6050_AXIS_X, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set gyroscope test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable gyroscope y test */
    res = mpu6050_set_gyroscope_test(&gs_handle, MPU6050_AXIS_Y, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set gyroscope test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable gyroscope z test */
    res = mpu6050_set_gyroscope_test(&gs_handle, MPU6050_AXIS_Z, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set gyroscope test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable accelerometer x test */
    res = mpu6050_set_accelerometer_test(&gs_handle, MPU6050_AXIS_X, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set accelerometer test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable accelerometer y test */
    res = mpu6050_set_accelerometer_test(&gs_handle, MPU6050_AXIS_Y, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set accelerometer test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable accelerometer z test */
    res = mpu6050_set_accelerometer_test(&gs_handle, MPU6050_AXIS_Z, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set accelerometer test failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable temp fifo */
    res = mpu6050_set_fifo_enable(&gs_handle, MPU6050_FIFO_TEMP, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fifo enable failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable xg fifo */
    res = mpu6050_set_fifo_enable(&gs_handle, MPU6050_FIFO_XG, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fifo enable failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable yg fifo */
    res = mpu6050_set_fifo_enable(&gs_handle, MPU6050_FIFO_YG, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fifo enable failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable zg fifo */
    res = mpu6050_set_fifo_enable(&gs_handle, MPU6050_FIFO_ZG, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fifo enable failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable accel fifo */
    res = mpu6050_set_fifo_enable(&gs_handle, MPU6050_FIFO_ACCEL, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fifo enable failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable fifo */
    res = mpu6050_set_fifo(&gs_handle, MPU6050_BOOL_TRUE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fifo failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* set interrupt level low */
    res = mpu6050_set_interrupt_level(&gs_handle, MPU6050_PIN_LEVEL_LOW);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt level failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* push-pull */
    res = mpu6050_set_interrupt_pin_type(&gs_handle, MPU6050_PIN_TYPE_PUSH_PULL);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt pin type failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable motion */
    res = mpu6050_set_interrupt(&gs_handle, MPU6050_INTERRUPT_MOTION, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable fifo overflow */
    res = mpu6050_set_interrupt(&gs_handle, MPU6050_INTERRUPT_FIFO_OVERFLOW, MPU6050_BOOL_TRUE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable dmp interrupt */
    res = mpu6050_set_interrupt(&gs_handle, MPU6050_INTERRUPT_DMP, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable i2c master */
    res = mpu6050_set_interrupt(&gs_handle, MPU6050_INTERRUPT_I2C_MAST, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable data ready */
    res = mpu6050_set_interrupt(&gs_handle, MPU6050_INTERRUPT_DATA_READY, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable latch */
    res = mpu6050_set_interrupt_latch(&gs_handle, MPU6050_BOOL_TRUE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt latch failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable interrupt read clear */
    res = mpu6050_set_interrupt_read_clear(&gs_handle, MPU6050_BOOL_TRUE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set interrupt read clear failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable sync input */
    res = mpu6050_set_extern_sync(&gs_handle, MPU6050_EXTERN_SYNC_INPUT_DISABLED);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set extern sync failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable fsync interrupt */
    res = mpu6050_set_fsync_interrupt(&gs_handle, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fsync interrupt failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* fsync interrupt level low */
    res = mpu6050_set_fsync_interrupt_level(&gs_handle, MPU6050_PIN_LEVEL_LOW);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set fsync interrupt level failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable iic master */
    res = mpu6050_set_iic_master(&gs_handle, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set iic master failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* disable iic bypass */
    res = mpu6050_set_iic_bypass(&gs_handle, MPU6050_BOOL_FALSE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: set iic bypass failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* load dmp firmware */
    mpu6050_interface_debug_print("mpu6050: load dmp firmware.\n");
    
    /* dmp load firmware */
    res = mpu6050_dmp_load_firmware(&gs_handle);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp load firmware failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* load dmp firmware successful */
    mpu6050_interface_debug_print("mpu6050: load dmp firmware successful .\n");
    
    /* mpu6050_dmp_set_pedometer_walk_time/mpu6050_dmp_get_pedometer_walk_time test */
    mpu6050_interface_debug_print("mpu6050: mpu6050_dmp_set_pedometer_walk_time/mpu6050_dmp_get_pedometer_walk_time test.\n");
    
    ms = 200;
    res = mpu6050_dmp_set_pedometer_walk_time(&gs_handle, ms);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set pedometer walk time failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: dmp set pedometer walk time %d ms.\n", ms);
    res = mpu6050_dmp_get_pedometer_walk_time(&gs_handle, &ms_check);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp get pedometer walk time failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: check pedometer walk time %s.\n", ms_check == ms ? "ok" : "error");
    
    /* mpu6050_dmp_set_pedometer_step_count/mpu6050_dmp_get_pedometer_step_count test */
    mpu6050_interface_debug_print("mpu6050: mpu6050_dmp_set_pedometer_step_count/mpu6050_dmp_get_pedometer_step_count test.\n");
    
    cnt = rand() % 1000;
    res = mpu6050_dmp_set_pedometer_step_count(&gs_handle, cnt);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set pedometer step count failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: dmp set pedometer step count %d.\n", cnt);
    res = mpu6050_dmp_get_pedometer_step_count(&gs_handle, &cnt_check);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp get pedometer step count failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: check pedometer step count %s.\n", cnt_check == cnt ? "ok" : "error");
    
    /* continuous mode */
    res = mpu6050_dmp_set_interrupt_mode(&gs_handle, MPU6050_DMP_INTERRUPT_MODE_CONTINUOUS);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set interrupt mode failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: dmp set gesture continuous mode.\n");
    
    /* mpu6050_dmp_set_fifo_rate/mpu6050_dmp_get_fifo_rate test */
    mpu6050_interface_debug_print("mpu6050: mpu6050_dmp_set_fifo_rate/mpu6050_dmp_get_fifo_rate test.\n");
    
    m = 50;
    res = mpu6050_dmp_set_fifo_rate(&gs_handle, m);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set fifo rate failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: dmp set fifo rate %dHz.\n", m);
    res = mpu6050_dmp_get_fifo_rate(&gs_handle, &m_check);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp get fifo rate failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: check fifo rate %s.\n", m_check == m ? "ok" : "error");
    
    /* mpu6050_dmp_set_feature test */
    mpu6050_interface_debug_print("mpu6050: mpu6050_dmp_set_feature test.\n");
    
    /* enable feature */
    res = mpu6050_dmp_set_feature(&gs_handle, MPU6050_DMP_FEATURE_6X_QUAT | MPU6050_DMP_FEATURE_GYRO_CAL | 
                                              MPU6050_DMP_FEATURE_PEDOMETER);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set feature failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    mpu6050_interface_debug_print("mpu6050: enable feature pedometer.\n");
    
    /* dmp gyro accel raw offset convert */
    res = mpu6050_dmp_gyro_accel_raw_offset_convert(&gs_handle, gyro_offset_raw, accel_offset_raw, 
                                                    gyro_offset, accel_offset);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp gyro accel raw offset convert failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* dmp set accel bias */
    res = mpu6050_dmp_set_accel_bias(&gs_handle, accel_offset);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set accel bias failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* dmp set gyro bias */
    res = mpu6050_dmp_set_gyro_bias(&gs_handle, gyro_offset);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set gyro bias failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* enable the dmp */
    res = mpu6050_dmp_set_enable(&gs_handle, MPU6050_BOOL_TRUE);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: dmp set enable failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* force fifo reset */
    res = mpu6050_force_fifo_reset(&gs_handle);
    if (res != 0)
    {
        mpu6050_interface_debug_print("mpu6050: force fifo reset failed.\n");
        (void)mpu6050_deinit(&gs_handle);
       
        return 1;
    }
    
    /* delay 200 ms */
    mpu6050_interface_delay_ms(200);
    
    i = 0;
    while (times != 0)
    {
        uint16_t l;
        
        /* read the data */
        l = 128;
        res = mpu6050_dmp_read(&gs_handle, 
                               gs_accel_raw, gs_accel_g,
                               gs_gyro_raw, gs_gyro_dps,
                               gs_quat,
                               gs_pitch, gs_roll, gs_yaw,
                               &l
                              );
        if (res == 0)
        {
            i++;
            if (i > 5)
            {
                i = 0;
                
                /* get the pedometer step count */
                res = mpu6050_dmp_get_pedometer_step_count(&gs_handle, &cnt);
                if (res != 0)
                {
                    mpu6050_interface_debug_print("mpu6050: dmp get pedometer step count failed.\n");
                    (void)mpu6050_deinit(&gs_handle);
                   
                    return 1;
                }
                
                /* check the cnt */
                if (cnt != cnt_check)
                {
                    mpu6050_interface_debug_print("mpu6050: pedometer step count is %d.\n", cnt);
                    cnt_check = cnt;
                    times--;
                }
            }
        }
        
        /* delay 200 ms */
        mpu6050_interface_delay_ms(200);
    }
    
    /* finish dmp pedometer test */
    mpu6050_interface_debug_print("mpu6050: finish dmp pedometer test.\n");
    (void)mpu6050_deinit(&gs_handle);
    
    return 0;
}