dac7

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DAC 7 Click

DAC 7 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 : Jan 2020.
• Type : SPI type

Software Support

Example Description

DAC 7 Click carries the AD5624R 12-bit buffered Digital-to-Analog Converter that converts digital value to the corresponding voltage level using external voltage reference.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Dac7

Example Key Functions

• dac7_cfg_setup Config Object Initialization function.

void dac7_cfg_setup ( dac7_cfg_t *cfg );

• dac7_init Initialization function.

err_t dac7_init ( dac7_t *ctx, dac7_cfg_t *cfg );

• dac7_default_cfg Click Default Configuration function.

void dac7_default_cfg ( dac7_t *ctx );

• dac7_sw_reset This function set software reset of selected channel of AD5624R Quad, 12-bit nanoDACs on DAC 7 Click board.

err_t dac7_sw_reset ( dac7_t *ctx );

• dac7_set_power This function set power mode of selected channel of AD5624R Quad, 12-bit nanoDACs on DAC 7 Click board.

err_t dac7_set_power ( dac7_t *ctx, uint8_t pwr_en, uint8_t sel_ch );

• dac7_set_ch_voltage This function set 12-bit value of 3-bit command definition to the target 3-bit address command of AD5624R Quad, 12-bit nanoDACs on DAC 7 Click board.

err_t dac7_set_ch_voltage ( dac7_t *ctx, uint8_t addr_ch, uint16_t vol_val, uint16_t v_ref_mv );

Application Init

Application Init performs Logger and Click initialization.

void application_init ( void )
{
    log_cfg_t log_cfg;
    dac7_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 ----" );
    Delay_ms ( 100 );

    //  Click initialization.

    dac7_cfg_setup( &cfg );
    DAC7_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    dac7_init( &dac7, &cfg );
    
    log_printf( &logger, "--------------------------\r\n\n" );
    log_printf( &logger, " ------  DAC 7 Click  ------\r\n" );
    log_printf( &logger, "--------------------------\r\n\n" );
    Delay_ms ( 1000 );
    
    v_ref_sel = DAC7_VREF_5000mV;

    if ( dac7_sw_reset( &dac7 ) == DAC7_SUCCESS )
    {
        log_printf( &logger, "   Software reset   \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );
        for ( ; ; );
    }
    
    Delay_ms ( 500 );
    log_printf( &logger, "--------------------------\r\n\n" );

    
    if ( dac7_set_power( &dac7, DAC7_PWR_ON_ENABLE, DAC7_SELECT_CHANNEL_ALL ) == DAC7_SUCCESS )
    {
        log_printf( &logger, "   All channel Power On   \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );

        for ( ; ; );
    }

    Delay_ms ( 500 );
    log_printf( &logger, "--------------------------\r\n\n" );
    log_printf( &logger, " -- Initialization  done. --\r\n" );
    log_printf( &logger, "--------------------------\r\n\n" );
    Delay_ms ( 1000 );
}

Application Task

In this example, we adjust the DAC output voltage from 1000 mV to 4000 mV for the channels, starting from channel A to channel D and then set the DAC output voltage to 5000 mV for all channels. Results are being sent to UART Terminal where you can track their changes. All data logs write on USB UART changes every 5 sec.

void application_task ( void )
{
    if ( dac7_set_ch_voltage ( &dac7, DAC7_ADDRESS_CHANNEL_A, 1000, v_ref_sel ) == DAC7_SUCCESS )
    {
        log_printf( &logger, "  Channel A : 1000 mV  \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );
        for ( ; ; );
    }

    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n\n" );
    
    if ( dac7_set_ch_voltage ( &dac7, DAC7_ADDRESS_CHANNEL_B, 2000, v_ref_sel ) == DAC7_SUCCESS )
    {
        log_printf( &logger, "  Channel B : 2000 mV  \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );
        for ( ; ; );
    }

    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n\n" );
    
    if ( dac7_set_ch_voltage ( &dac7, DAC7_ADDRESS_CHANNEL_C, 3000, v_ref_sel ) == DAC7_SUCCESS )
    {
        log_printf( &logger, "  Channel C : 3000 mV  \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );
        for ( ; ; );
    }
    
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    log_printf( &logger, "--------------------------\r\n\n" );
    
    if ( dac7_set_ch_voltage ( &dac7, DAC7_ADDRESS_CHANNEL_D, 4000, v_ref_sel ) == DAC7_SUCCESS )
    {
        log_printf( &logger, "  Channel D : 4000 mV  \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );
        for ( ; ; );
    }

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

    if ( dac7_set_ch_voltage ( &dac7, DAC7_ADDRESS_CHANNEL_ALL, 5000, v_ref_sel ) == DAC7_SUCCESS )
    {
        log_printf( &logger, " All Channels: 5000 mV \r\n" );
    }
    else
    {
        log_printf( &logger, "   ERROR   \r\n" );
        for ( ; ; );
    }

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

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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