dac13

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DAC 13 Click

DAC 13 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 : Oct 2022.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of DAC 13 Click board by changing the outputs voltage level every 2 seconds.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.DAC13

Example Key Functions

• dac13_cfg_setup Config Object Initialization function.

void dac13_cfg_setup ( dac13_cfg_t *cfg );

• dac13_init Initialization function.

err_t dac13_init ( dac13_t *ctx, dac13_cfg_t *cfg );

• dac13_default_cfg Click Default Configuration function.

err_t dac13_default_cfg ( dac13_t *ctx );

• dac13_set_output_range This function sets the output voltage range and as well as the @b ctx->v_zero_scale and @b ctx->v_full_scale variables for the selected range.

err_t dac13_set_output_range ( dac13_t *ctx, uint8_t out_range );

• dac13_set_dac_value This function sets the raw DAC value.

err_t dac13_set_dac_value ( dac13_t *ctx, uint16_t dac_value );

• dac13_set_output_voltage This function sets the DAC output voltage.

err_t dac13_set_output_voltage ( dac13_t *ctx, float voltage );

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    dac13_cfg_t dac13_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.
    dac13_cfg_setup( &dac13_cfg );
    DAC13_MAP_MIKROBUS( dac13_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == dac13_init( &dac13, &dac13_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    if ( DAC13_ERROR == dac13_default_cfg ( &dac13 ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }
    
    log_info( &logger, " Application Task " );
}

Application Task

Changes the output voltage every 2 seconds and logs the voltage value on the USB UART. It will go through the entire voltage range taking into account the number of steps which is defined below.

void application_task ( void )
{
    float step = ( dac13.v_full_scale - dac13.v_zero_scale ) / ( NUMBER_OF_STEPS - 1 );
    float out_voltage = dac13.v_zero_scale;
    for ( uint8_t cnt = 0; cnt < NUMBER_OF_STEPS; cnt++ )
    {
        if ( DAC13_OK == dac13_set_output_voltage ( &dac13, out_voltage ) )
        {
            log_printf ( &logger, " Output voltage : %.2f V\r\n\n", out_voltage );
            out_voltage += step;
            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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