hztov2

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HZ to V 2 Click

HZ to V 2 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 : MikroE Team
• Date : Jan 2020.
• Type : ADC type

Software Support

Example Description

This app converts input frequency to a DC voltage output.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.HzToV2

Example Key Functions

• hztov2_cfg_setup Config Object Initialization function.

void hztov2_cfg_setup ( hztov2_cfg_t *cfg );

• hztov2_init Initialization function.

err_t hztov2_init ( hztov2_t *ctx, hztov2_cfg_t *cfg );

• hztov2_en_pin This function enable the Click board.

void hztov2_en_pin ( hztov2_t *ctx, uint8_t pin_state );

• hztov2_read_voltage This function read ADC data and converts it to voltage.

float hztov2_read_voltage ( hztov2_t *ctx );

• hztov2_fin_set This function sets PWM clock frequency at FIN pin.

err_t hztov2_fin_set ( hztov2_t *ctx, uint32_t fin );

Application Init

This function initializes and configures the logger and the Click board.

void application_init ( void )
{
    log_cfg_t log_cfg;
    hztov2_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.

    hztov2_cfg_setup( &cfg );
    HZTOV2_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    hztov2_init( &hztov2, &cfg );
    hztov2_en_pin( &hztov2, 1 );
    
    fin = 10000;
    
    Delay_ms ( 100 );
}

Application Task

Sets the PWM frequency then reads the voltage from VO pin and logs all data on USB UART.

void application_task ( void )
{
    if ( fin > 120000 )
        fin = 10000;
    hztov2_fin_set( &hztov2, fin );
    log_printf( &logger, "Frequency: %lu Hz \r\n", fin );
    Delay_ms ( 100 );
    
    voltage = hztov2_read_voltage( &hztov2 );
    log_printf( &logger, "Voltage: %.2f V \r\n", voltage );
    
    fin += 10000;
    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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