magneto2

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Magneto 2 Click

Magneto 2 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 collects data from the sensor, calculates position of absolute rotary angle and then logs it.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Magneto2

Example Key Functions

• magneto2_cfg_setup Config Object Initialization function.

void magneto2_cfg_setup ( magneto2_cfg_t *cfg );

• magneto2_init Initialization function.

err_t magneto2_init ( magneto2_t *ctx, magneto2_cfg_t *cfg );

• This function reads 14-bit data value from target register, calculates and converts to float angle value from 0� to 360�.

float magneto2_read_angle ( magneto2_t* ctx )

• magneto2_read_data This function takes 14-bit data value from target register.

uint16_t magneto2_read_data ( magneto2_t* ctx );

Application Init

Initializes driver and start write log.

void application_init ( void )
{
    log_cfg_t log_cfg;
    magneto2_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.

    magneto2_cfg_setup( &cfg );
    MAGNETO2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    magneto2_init( &magneto2, &cfg );

    angle_value = 0;
    angle_value_old = -1.0;
}

Application Task

Magneto 2 Click communicates with register via SPI by read from register and calculates position of absolute rotary angle float value. Results are being sent to the Uart Terminal where you can track their changes. All data logs on usb uart when magnetic field is detected.

void application_task ( void )
{
    angle_value = magneto2_read_angle( &magneto2 );
    Delay_100ms();

    if ( angle_value_old != angle_value )
    {
        if ( angle_value != -1 )
        {
            if ( angle_value != 0 )
            {
                log_printf( &logger, "Angle %f\r\n", angle_value );
            }
            else
            {
                log_printf( &logger, "Magnetic field too weak\r\n" );
            }
        }
        else
        {
            log_printf(&logger, "Magnetic field too strong\r\n");
        }

        angle_value_old = angle_value;
        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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