BMX160 Power Mode - Transitions

[Nikosant03]

Hi everyone,

I have a question regarding the switching in Power Modes. What can I understand is that there are two ways to change power mode:

EITHER 

sensor.accel_cfg.power = BMI160_ACCEL_NORMAL_MODE;
sensor.gyro_cfg.power = BMI160_GYRO_NORMAL_MODE; 

rslt = bmi160_set_sens_conf(&sensor);

OR

sensor.accel_cfg.power = BMI160_ACCEL_NORMAL_MODE;
sensor.gyro_cfg.power = BMI160_GYRO_NORMAL_MODE; 

rslt = bmi160_set_power_mode(&sensor);

Which function should I use in order to change properly power mode?  Should I should both functions? Should I use both functions but in a particular order?

Please advice

Thanks in advance

Nick

[fish]

Hello,

From API code as bellow, two function are different. So you could follow example code to make configuration.

/*!
 * @brief This API configures the power mode, range and bandwidth
 * of sensor.
 */
int8_t bmi160_set_sens_conf(struct bmi160_dev *dev)
{
    int8_t rslt = BMI160_OK;

    /* Null-pointer check */
    if ((dev == NULL) || (dev->delay_ms == NULL))
    {
        rslt = BMI160_E_NULL_PTR;
    }
    else
    {
        rslt = set_accel_conf(dev);
        if (rslt == BMI160_OK)
        {
            rslt = set_gyro_conf(dev);
            if (rslt == BMI160_OK)
            {
                /* write power mode for accel and gyro */
                rslt = bmi160_set_power_mode(dev);
                if (rslt == BMI160_OK)
                {
                    rslt = check_invalid_settg(dev);
                }
            }
        }
    }

    return rslt;
}

/*!
 * @brief This API sets the power mode of the sensor.
 */
int8_t bmi160_set_power_mode(struct bmi160_dev *dev)
{
    int8_t rslt = 0;

    /* Null-pointer check */
    if ((dev == NULL) || (dev->delay_ms == NULL))
    {
        rslt = BMI160_E_NULL_PTR;
    }
    else
    {
        rslt = set_accel_pwr(dev);
        if (rslt == BMI160_OK)
        {
            rslt = set_gyro_pwr(dev);
        }
    }

    return rslt;
}

[Nikosant03]

Thank you for your reply fish

Actually the bmi160_set_sens_conf() includes the bmi160_set_power_mode().. 

So I could use either the bmi160_set_sens_conf() or the bmi160_set_power_mode() to switch power mode right? It is identical isn't it?

[Vincent · Accepted solution]

Yes, they are identical if you put correct power mode value into configure data group already.