digiio

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DIGI IO Click

DIGI IO 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 : Stefan Filipovic
• Date : May 2024.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of DIGI IO Click board by setting and reading the DOI channels state.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.DIGIIO

Example Key Functions

• digiio_cfg_setup Config Object Initialization function.

void digiio_cfg_setup ( digiio_cfg_t *cfg );

• digiio_init Initialization function.

err_t digiio_init ( digiio_t *ctx, digiio_cfg_t *cfg );

• digiio_default_cfg Click Default Configuration function.

err_t digiio_default_cfg ( digiio_t *ctx );

• digiio_write_reg This function writes data to the selected register by using SPI serial interface.

err_t digiio_write_reg ( digiio_t *ctx, uint8_t reg, uint8_t data_in );

• digiio_read_reg This function reads data from the selected register by using SPI serial interface.

err_t digiio_read_reg ( digiio_t *ctx, uint8_t reg, uint8_t *data_out );

• digiio_sync_io This function synchronizes registers by toggling the SYNC pin logic state.

void digiio_sync_io ( digiio_t *ctx );

Application Init

Initializes the driver and performs the Click default configuration which sets the DOI1 and DOI2 as output and the DOI3 and DOI4 as inputs.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    digiio_cfg_t digiio_cfg;  /**< Click config object. */

    /** 
     * 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.
    digiio_cfg_setup( &digiio_cfg );
    DIGIIO_MAP_MIKROBUS( digiio_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == digiio_init( &digiio, &digiio_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( DIGIIO_ERROR == digiio_default_cfg ( &digiio ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
}

Application Task

Toggles the DOI1 and DOI2 pins state and then reads the status of all four DOI pins and displays the results on the USB UART approximately once per second.

void application_task ( void )
{
    uint8_t set_out = 0;
    uint8_t doi_level = 0;
    digiio_sync_io ( &digiio );
    if ( DIGIIO_OK == digiio_read_reg ( &digiio, DIGIIO_REG_SET_OUT, &set_out ) )
    {
        set_out ^= ( DIGIIO_SET_OUT_HIGH_O1_MASK | DIGIIO_SET_OUT_HIGH_O2_MASK );
        if ( DIGIIO_OK == digiio_write_reg ( &digiio, DIGIIO_REG_SET_OUT, set_out ) )
        {
            digiio_sync_io ( &digiio );
        }
    }
    if ( DIGIIO_OK == digiio_read_reg ( &digiio, DIGIIO_REG_DOI_LEVEL, &doi_level ) )
    {
        if ( doi_level & DIGIIO_DOI_LEVEL_DOI1 )
        {
            log_printf ( &logger, " DOI1: HIGH\r\n" );
        }
        else
        {
            log_printf ( &logger, " DOI1: LOW\r\n" );
        }
        if ( doi_level & DIGIIO_DOI_LEVEL_DOI2 )
        {
            log_printf ( &logger, " DOI2: HIGH\r\n" );
        }
        else
        {
            log_printf ( &logger, " DOI2: LOW\r\n" );
        }
        if ( doi_level & DIGIIO_DOI_LEVEL_DOI3 )
        {
            log_printf ( &logger, " DOI3: HIGH\r\n" );
        }
        else
        {
            log_printf ( &logger, " DOI3: LOW\r\n" );
        }
        if ( doi_level & DIGIIO_DOI_LEVEL_DOI4 )
        {
            log_printf ( &logger, " DOI4: HIGH\r\n" );
        }
        else
        {
            log_printf ( &logger, " DOI4: LOW\r\n" );
        }
        log_printf ( &logger, "\r\n" );
    }
    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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