digipot8

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DIGI POT 8 Click

DIGI POT 8 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 : Feb 2021.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of DIGI POT 8 Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.DIGIPOT8

Example Key Functions

• digipot8_cfg_setup Config Object Initialization function.

void digipot8_cfg_setup ( digipot8_cfg_t *cfg );

• digipot8_init Initialization function.

err_t digipot8_init ( digipot8_t *ctx, digipot8_cfg_t *cfg );

• digipot8_write_data DIGI POT 8 write data function.

err_t digipot8_write_data ( digipot8_t *ctx, uint8_t reg, uint8_t data_in )

• digipot8_set_wiper_1 DIGI POT 8 set wiper 2 function.

err_t digipot8_set_wiper_1 ( digipot8_t *ctx, uint8_t data_in );

• digipot8_set_wiper_2 DIGI POT 8 set wiper 3 function.

err_t digipot8_set_wiper_2 ( digipot8_t *ctx, uint8_t data_in );

Application Init

Initializes the driver and makes an initial log.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    digipot8_cfg_t digipot8_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.

    digipot8_cfg_setup( &digipot8_cfg );
    DIGIPOT8_MAP_MIKROBUS( digipot8_cfg, MIKROBUS_1 );
    err_t init_flag  = digipot8_init( &digipot8, &digipot8_cfg );
    if ( init_flag == SPI_MASTER_ERROR ) {
        log_error( &logger, " Application Init Error. " );
        log_info( &logger, " Please, run program again... " );

        for ( ; ; );
    }

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

Application Task

Iterates through the entire wiper range and sets all wipers to the iterator value each second. The current wiper position will be displayed on USB UART.

void application_task ( void )
{
    for ( uint8_t cnt = DIGIPOT8_WIPER_POSITION_MIN; cnt < DIGIPOT8_WIPER_POSITION_MAX; cnt += 5 )
    {
        digipot8_set_wiper_1 ( &digipot8, cnt );
        digipot8_set_wiper_2 ( &digipot8, cnt );
        digipot8_set_wiper_3 ( &digipot8, cnt );
        digipot8_set_wiper_4 ( &digipot8, cnt );
        digipot8_set_wiper_5 ( &digipot8, cnt );
        digipot8_set_wiper_6 ( &digipot8, cnt );
        log_printf( &logger, " * All wipers position set to %d *\r\n", ( uint16_t ) cnt );
        
        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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