vtohz

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V to Hz Click

V to Hz 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 : PWM type

Software Support

Example Description

This application converts an analog voltage input signal into a pulse wave signal of a certain frequency.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.VtoHz

Example Key Functions

• vtohz_cfg_setup Config Object Initialization function.

void vtohz_cfg_setup ( vtohz_cfg_t *cfg );

• vtohz_init Initialization function.

err_t vtohz_init ( vtohz_t *ctx, vtohz_cfg_t *cfg );

• vtohz_set_duty_cycle Generic sets PWM duty cycle.

void vtohz_set_duty_cycle ( vtohz_t *ctx, pwm_data_t duty_cycle );

• vtohz_pwm_stop Stop PWM module.

void vtohz_pwm_stop ( vtohz_t *ctx );

• vtohz_pwm_start Start PWM module.

void vtohz_pwm_start ( vtohz_t *ctx );

Application Init

Initializes driver and enables the Click board.

void application_init ( void )
{
    log_cfg_t log_cfg;
    vtohz_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.

    vtohz_cfg_setup( &cfg );
    VTOHZ_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    vtohz_init( &vtohz, &cfg );
    
    vtohz_enable ( &vtohz );
}

Application Task

Alternates between different output frequencies.

void application_task ( void )
{
    set_output_frequency( 1000 );        //1000 Hz output
    log_printf( &logger, "Output frequency: \t 1000 Hz\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    set_output_frequency( 2000 );        //2000 Hz output
    log_printf( &logger, "Output frequency: \t 2000 Hz\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    set_output_frequency( 5000 );        //5000 Hz output
    log_printf( &logger, "Output frequency: \t 5000 Hz\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    set_output_frequency( 10000 );       //10000 Hz output
    log_printf( &logger, "Output frequency: \t 10000 Hz\r\n" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

Note

Output frequency may vary depending on the offset and gain potentiometers on board the Click.

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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