magneto

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MAGNETO Click

MAGNETO 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 : Mihajlo Djordjevic
• Date : Dec 2019.
• Type : SPI type

Software Support

Example Description

Example presents precise angle measurements down to 0.05º in 14-bit resolution.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Magneto

Example Key Functions

• magneto_cfg_setup Config Object Initialization function.

void magneto_cfg_setup ( magneto_cfg_t *cfg );

• magneto_init Initialization function.

err_t magneto_init ( magneto_t *ctx, magneto_cfg_t *cfg );

• magneto_default_cfg Click Default Configuration function.

void magneto_default_cfg ( magneto_t *ctx );

• magneto_get_state This function read and returns the value of the state register.

uint16_t magneto_get_state ( magneto_t *ctx );

• magneto_calculate_angle This function read the 16-bit data from register then calculate and convert to float angle value from 0deg to 360deg.

float magneto_calculate_angle ( magneto_t *ctx );

Application Init

Application Init performs Logger and Click initialization.

void application_init ( void )
{
    log_cfg_t log_cfg;
    magneto_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_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, "     Application  Init\r\n" );
    Delay_ms ( 100 );

    //  Click initialization.

    magneto_cfg_setup( &cfg );
    MAGNETO_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    magneto_init( &magneto, &cfg );
    
    log_printf( &logger, "--------------------------\r\n" );
    log_printf( &logger, " ----- MAGNETO Click ---- \r\n" );
    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 1000 );
    
    if ( magneto_get_state( &magneto ) != 1 )
    {
        log_printf( &logger, " -- Initialization done --\r\n" );
    }
    else
    {
        log_printf( &logger, " -------- ERROR ! --------\r\n" );
    }

    log_printf( &logger, "--------------------------\r\n" );
    Delay_ms ( 1000 );
}

Application Task

Magneto Click communicates with register via SPI by write and read from register and calculate float angle value. Results are being sent to the UART Terminal where you can track their changes. All data logs on USB UART for aproximetly every 2 sec.

void application_task ( void )
{
    angle_value = magneto_calculate_angle( &magneto );
    log_printf( &logger, "  [ANGLE] : %0.3f \r\n", angle_value );

    Delay_ms ( 1000 );
    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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