ADC 14 click

ADC 14 Click is a compact add-on board with a high-performance data converter. This board features the MAX11108A, a low-power serial ADC from Analog Devices. It includes a high-dynamic range sample-and-hold and a high-speed serial interface.

click Product page

Click library

• Author : Nenad Filipovic
• Date : Aug 2023.
• Type : SPI type

Software Support

We provide a library for the ADC 14 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for ADC 14 Click driver.

Standard key functions :

• adc14_cfg_setup Config Object Initialization function.

  void adc14_cfg_setup ( adc14_cfg_t *cfg );

• adc14_init Initialization function.

  err_t adc14_init ( adc14_t *ctx, adc14_cfg_t *cfg );

Example key functions :

• adc14_get_voltage ADC 14 get voltage function.

  err_t adc14_get_voltage ( adc14_t *ctx, float *voltage );

• adc14_read_conversion_data ADC 14 read conversion data function.

  err_t adc14_read_conversion_data ( adc14_t *ctx, uint16_t *adc_data );

• adc14_set_vref ADC 14 set voltage reference function.

  err_t adc14_set_vref ( adc14_t *ctx, float vref );

Example Description

This example demonstrates the use of the ADC 14 Click board™ by reading results of AD conversion by using SPI serial interface.

The demo application is composed of two sections :

Application Init

Initialization of SPI module and log UART and enabled internal voltage reference.

void application_init ( void )
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    adc14_cfg_t adc14_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.
    adc14_cfg_setup( &adc14_cfg );
    ADC14_MAP_MIKROBUS( adc14_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == adc14_init( &adc14, &adc14_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );
}

Application Task

The demo application gets the voltage levels from analog input and displays the results. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void )
{
    float voltage = 0.0;
    if ( ADC14_OK == adc14_get_voltage( &adc14, &voltage ) )
    {
        log_printf( &logger, " Voltage : %.2f [mV]\r\n", voltage );
        Delay_ms ( 1000 );
    } 
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.ADC14

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.