ADC 6 Click

ADC 6 Click is an advanced 24bit multichannel analog to digital converter (ADC), with 8 fully differential or 15 single ended/pseudo differential sampling inputs, and very flexible routing capabilities. The Click board� has two 2x10 pin headers, used both to configure the device and connect the input channels.

Click Product page

Click library

• Author : MikroE Team
• Date : Dec 2019.
• Type : SPI type

Software Support

We provide a library for the ADC6 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.

Library Description

This library contains API for ADC6 Click driver.

Standard key functions :

• adc6_cfg_setup Config Object Initialization function.

  void adc6_cfg_setup ( adc6_cfg_t *cfg );

• adc6_init Initialization function.

  err_t adc6_init ( adc6_t *ctx, adc6_cfg_t *cfg );

• adc6_default_cfg Click Default Configuration function.

  void adc6_default_cfg ( adc6_t* ctx );

Example key functions :

• adc6_get_adc_data Get data function

  uint32_t adc6_get_adc_data ( adc6_t* ctx );

• adc6_read_reg Generic read function

  uint32_t adc6_read_reg ( adc6_t* ctx, uint8_t register_address );

• adc6_write_reg Generic write function

  void adc6_write_reg ( adc6_t* ctx, uint8_t register_address, uint32_t transfer_data );

Examples Description

This example collects data from the sensor, calculates the voltage to a digital value and then logs it.

The demo application is composed of two sections :

Application Init

Initializes driver and sets configuration which enables channel 0, puts AIN0 on positive analog input and AIN1 on negative analog input, enables internal reference voltage (approximately 2.65V (AVDD = 3.3V)), and also enables bipolar operation mode and puts device on full power mode. When the ADC is configured for unipolar operation, the output code is natural (straight) binary with a zero differential input voltage resulting in a code of 0x00000000, a midscale voltage resulting in a code of 0x00800000, and a full-scale input voltage resulting in a code of 0x00FFFFFF. When the ADC is configured for bipolar operation, the output code is offset binary with a negative full-scale voltage resulting in a code of 0x00000000, a zero differential input voltage resulting in a code of 0x00800000, and a positive full-scale input voltage resulting in a code of 0x00FFFFFF.

void application_init ( void )
{
    log_cfg_t log_cfg;
    adc6_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 ----" );

    //  Click initialization.

    adc6_cfg_setup( &cfg );
    ADC6_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    adc6_init( &adc6, &cfg );
    adc6_default_cfg( &adc6 );

}

Application Task

Gets 24-bit converted data in single read mode and logs data on USB UART. Repeats operation every 500 ms.

void application_task ( void )
{
    uint32_t adc_value = 0;

    adc_value = adc6_get_adc_data( &adc6 );

    log_printf( &logger, "The ADC value is: 0x%.6LX\r\n", adc_value );

    Delay_ms ( 500 );
}

The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.

Other mikroE Libraries used in the example:

• MikroSDK.Board
• MikroSDK.Log
• Click.ADC6

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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.