waveform

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Waveform Click

Waveform 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 : Dec 2019.
• Type : SPI type

Software Support

Example Description

This example demonstrates the use of Waveform Click board.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.Waveform

Example Key Functions

• waveform_cfg_setup Config Object Initialization function.

void waveform_cfg_setup ( waveform_cfg_t *cfg ); 

• waveform_init Initialization function.

err_t waveform_init ( waveform_t *ctx, waveform_cfg_t *cfg );

• waveform_sine_output Sinusoide output function

void waveform_sine_output ( waveform_t *ctx, uint32_t freq );

• waveform_triangle_output Triangle output function

void waveform_triangle_output ( waveform_t *ctx, uint32_t freq );

• waveform_square_output Square output function

void waveform_square_output ( waveform_t *ctx, uint32_t freq );

Application Init

Initializes the communication interface and configures the Click board.

void application_init ( )
{
    log_cfg_t log_cfg;
    waveform_cfg_t waveform_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.
    waveform_cfg_setup( &waveform_cfg );
    WAVEFORM_MAP_MIKROBUS( waveform_cfg, MIKROBUS_1 );
    if ( SPI_MASTER_ERROR == waveform_init( &waveform, &waveform_cfg ) )
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    waveform_sine_output( &waveform, frequency );
    log_printf( &logger, "Sine wave output set with approx. frequency: %lu Hz\r\n", frequency );
    waveform_display_commands ( );
    log_info( &logger, " Application Task " );
}

Application Task

Predefined commands are inputed from the serial port. Changes the signal frequency, waveform or amplitude depending on the receiver command.

void application_task ( )
{
    uint8_t command = 0;
    if ( 1 == log_read ( &logger, &command, 1 ) ) 
    {
        waveform_parse_command ( command );
    }
}

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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