tmrangle

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TMR Angle Click

TMR Angle Click demo application is developed using the NECTO Studio, ensuring compatibility with mikroSDK's open-source libraries and tools. Designed for plug-and-play implementation and testing, the demo is fully compatible with all development, starter, and mikromedia boards featuring a mikroBUS™ socket.

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Click Library

• Author : MikroE Team
• Date : Dec 2019.
• Type : SPI type

Software Support

Example Description

This example reads and value in deegres, and then logs the result.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.TMRAngle

Example Key Functions

• tmrangle_cfg_setup Config Object Initialization function.

void tmrangle_cfg_setup ( tmrangle_cfg_t *cfg );

• tmrangle_init Initialization function.

err_t tmrangle_init ( tmrangle_t *ctx, tmrangle_cfg_t *cfg );

• tmrangle_default_cfg Click Default Configuration function.

void tmrangle_default_cfg ( tmrangle_t *ctx );

• tmrangle_init_sensor_data Function read and stores negative and positive, sine and cosine parameters data.

void tmrangle_init_sensor_data ( tmrangle_t* ctx );

• tmrangle_calibration_find_param This function will extract the maximum, minimum voltage levels, amplitude, offset, and orthogonality.

void tmrangle_calibration_find_param  ( tmrangle_t* ctx, tmrangle_calib_data_t* calib_param  );

• tmrangle_get_calib_angle Function calculates the calibrated angle in degrees and this structure holds the current sensor calibration parameters.

float tmrangle_get_calib_angle ( tmrangle_calib_data_t* calib_param );

Application Init

Initializes driver, and also write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    tmrangle_cfg_t cfg;

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, "---- Application Init ----" );

    //  Click initialization.

    tmrangle_cfg_setup( &cfg );
    TMRANGLE_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    tmrangle_init( &tmrangle, &cfg );

}

Application Task

Reads angle value in degrees and logs the results.

void application_task ( void )
{
    float angle;
    trigonometry_t trig_set;
    tmrangle_calib_data_t calibration_store_params;
    tmrangle_init_sensor_data( &tmrangle );

    trig_set.max_diff_sin = TMRANGLE_MAX_DIFF_SIN;
    trig_set.max_diff_cos = TMRANGLE_MAX_DIFF_COS;
    trig_set.min_diff_sin = TMRANGLE_MIN_DIFF_SIN;
    trig_set.min_diff_cos = TMRANGLE_MIN_DIFF_COS;
    trig_set.sin_45 = TMRANGLE_SIN_45;
    trig_set.cos_45 = TMRANGLE_COS_45;
    trig_set.sin_135 = TMRANGLE_SIN_135;
    trig_set.cos_135 = TMRANGLE_COS_135;

    tmrangle_init_calib_data( &tmrangle, &calibration_store_params, &trig_set );
    tmrangle_calibration_find_param( &tmrangle, &calibration_store_params );

    angle = tmrangle_get_calib_angle( &tmrangle, &calibration_store_params );

    log_printf( &logger, "Angle is %f deg\r\n", angle );

    Delay_ms ( 1000 );
}

Application Output

This Click board can be interfaced and monitored in two ways:

• Application Output - Use the "Application Output" window in Debug mode for real-time data monitoring. Set it up properly by following this tutorial.
• UART Terminal - Monitor data via the UART Terminal using a USB to UART converter. For detailed instructions, check out this tutorial.

Additional Notes and Information

The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.

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