usbuartiso

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USB UART ISO Click

USB UART ISO 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 : Nenad Filipovic
• Date : Jul 2023.
• Type : UART type

Software Support

Example Description

This example demonstrates the use of USB UART ISO Click board by processing the incoming data and displaying them on the USB UART.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.USBUARTISO

Example Key Functions

• usbuartiso_cfg_setup Config Object Initialization function.

void usbuartiso_cfg_setup ( usbuartiso_cfg_t *cfg );

• usbuartiso_init Initialization function.

err_t usbuartiso_init ( usbuartiso_t *ctx, usbuartiso_cfg_t *cfg );

• usbuartiso_default_cfg Click Default Configuration function.

void usbuartiso_default_cfg ( usbuartiso_t *ctx );

• usbuartiso_generic_write USB UART ISO data writing function.

err_t usbuartiso_generic_write ( usbuartiso_t *ctx, uint8_t *data_in, uint16_t len );

• usbuartiso_generic_read USB UART ISO data reading function.

err_t usbuartiso_generic_read ( usbuartiso_t *ctx, uint8_t *data_out, uint16_t len );

Application Init

Initializes the driver and performs the Click default configuration.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    usbuartiso_cfg_t usbuartiso_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.
    usbuartiso_cfg_setup( &usbuartiso_cfg );
    USBUARTISO_MAP_MIKROBUS( usbuartiso_cfg, MIKROBUS_1 );
    if ( UART_ERROR == usbuartiso_init( &usbuartiso, &usbuartiso_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    
    usbuartiso_default_cfg ( &usbuartiso );
    log_info( &logger, " Application Task " );
}

Application Task

Any data which the host PC sends via UART Terminal will be sent over USB to the Click board and then it will be read and echoed back by the MCU to the PC where the terminal program will display it. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    char rx_data = 0;
    if ( usbuartiso_generic_read ( &usbuartiso, &rx_data, 1 ) )
    {
        if ( usbuartiso_generic_write ( &usbuartiso, &rx_data, 1 ) )
        {
            log_printf( &logger, "%c", rx_data );
        }
    }
}

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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