uarti2cspi

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UART I2C/SPI Click

UART I2C SPI 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 : Jun 2020.
• Type : I2C/SPI type

Software Support

Example Description

This example showcases how to initialize, configure and use the UART I2C/SPI Click module. The Click is a I2C/SPI to UART bridge interface. It requires a RS232/485 cable in order to be connected to other Click module or an adapter.

Example Libraries

• MikroSDK.Board
• MikroSDK.Log
• Click.UARTI2CSPI

Example Key Functions

• uarti2cspi_cfg_setup Config Object Initialization function.

void uarti2cspi_cfg_setup ( uarti2cspi_cfg_t *cfg );

• uarti2cspi_init Initialization function.

err_t uarti2cspi_init ( uarti2cspi_t *ctx, uarti2cspi_cfg_t *cfg );

• uarti2cspi_set_reset Set RST pin state function.

void uarti2cspi_set_reset ( uarti2cspi_t *ctx, uint8_t state );

• uarti2cspi_advanced_init Advanced initialization function.

void uarti2cspi_advanced_init ( uarti2cspi_t *ctx, uint32_t baud_rate, uint8_t data_bits, uint8_t parity_mode, uint8_t stop_bits );

• uarti2cspi_uart_write_text Uart write text function.

void uarti2cspi_uart_write_text ( uarti2cspi_t *ctx, uint8_t *w_text );

• uarti2cspi_uart_read This function reads one byte from the Click module.

uint8_t uarti2cspi_uart_read ( uarti2cspi_t *ctx );

Application Init

Initializes the driver, configures UART, and enables UART interrupts.

void application_init ( void )
{
    log_cfg_t log_cfg;
    uarti2cspi_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.

    uarti2cspi_cfg_setup( &cfg );
    UARTI2CSPI_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    uarti2cspi_init( &uarti2cspi, &cfg );
    Delay_ms ( 1000 );

    uarti2cspi_advanced_init( &uarti2cspi, 115200, UARTI2CSPI_UART_8_BIT_DATA, 
                                                   UARTI2CSPI_UART_NOPARITY,
                                                   UARTI2CSPI_UART_ONE_STOPBIT );
    Delay_ms ( 100 );
    uarti2cspi_interrupt_enable( &uarti2cspi, UARTI2CSPI_RXD_INT_EN | UARTI2CSPI_THR_EMPTY_INT_EN );

    Delay_ms ( 100 );

#ifdef DEMO_APP_TRANSMITTER
    log_info( &logger, "---- TRANSMITTER MODE ----" );
#endif
#ifdef DEMO_APP_RECEIVER
    log_info( &logger, "---- RECEIVER MODE ----" );
#endif
    Delay_ms ( 1000 );
}

Application Task

Depending on the selected mode, it reads all the received data or sends the desired message every 2 seconds.

void application_task ( void )
{
#ifdef DEMO_APP_TRANSMITTER
    uarti2cspi_uart_write_text( &uarti2cspi, TEXT_TO_SEND );
    log_info( &logger, "---- The message has been sent ----" );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
#endif
#ifdef DEMO_APP_RECEIVER
    if ( uarti2cspi_uart_data_ready( &uarti2cspi ) )
    {
        uint8_t rx_data = uarti2cspi_uart_read( &uarti2cspi );
        log_printf( &logger, "%c", rx_data );
    }
#endif
}

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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