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mikroSDK Library

RS Transceiver Click

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Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.7

mikroSDK Library: 2.0.0.0

Category: RS485

Downloaded: 207 times

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License: MIT license  

RS Transceiver is a compact add-on board that offers an interface between the TTL level UART and RS-232/RS-422/RS-485 communication buses. This board features the XR34350, an RS-232/RS-422/RS-485 serial transceiver with internal termination and wide output swing from MaxLinear. Integrated cable termination and four configuration modes allow all three protocols to be used interchangeably over a single cable over the DE-9 connector. All transmitter outputs and receiver inputs feature robust ESD protection and HBM up to ±15kV.

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mikroSDK Library Blog


RS Transceiver Click

RS Transceiver is a compact add-on board that offers an interface between the TTL level UART and RS-232/RS-422/RS-485 communication buses. This board features the XR34350, an RS-232/RS-422/RS-485 serial transceiver with internal termination and wide output swing from MaxLinear. Integrated cable termination and four configuration modes allow all three protocols to be used interchangeably over a single cable over the DE-9 connector. All transmitter outputs and receiver inputs feature robust ESD protection and HBM up to ±15kV.

rstransceiver_click.png

Click Product page


Click library

  • Author : Nenad Filipovic
  • Date : May 2023.
  • Type : I2C type

Software Support

We provide a library for the RS Transceiver Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for RS Transceiver Click driver.

Standard key functions :

  • rstransceiver_cfg_setup Config Object Initialization function.

    void rstransceiver_cfg_setup ( rstransceiver_cfg_t *cfg );
  • rstransceiver_init Initialization function.

    err_t rstransceiver_init ( rstransceiver_t *ctx, rstransceiver_cfg_t *cfg );
  • rstransceiver_default_cfg Click Default Configuration function.

    err_t rstransceiver_default_cfg ( rstransceiver_t *ctx );

Example key functions :

  • rstransceiver_set_op_mode RS Transceiver sets the operating mode function.

    err_t rstransceiver_set_op_mode ( rstransceiver_t *ctx, uint8_t op_mode );
  • rstransceiver_mode_full_duplex RS Transceiver sets the Full-Duplex mode function.

    err_t rstransceiver_mode_full_duplex ( rstransceiver_t *ctx, uint8_t slew, uint8_t dir1, uint8_t term );
  • rstransceiver_device_enable RS Transceiver enables the device function.

    void rstransceiver_device_enable ( rstransceiver_t *ctx );

Example Description

This example reads and processes data from RS Transceiver Click board™. The library also includes a function for selecting the desired operating mode, enabling/disabling the receiver or driver and data writing or reading.

The demo application is composed of two sections :

Application Init

Initialization of I2C and UART module and log UART. After driver initialization, default settings turn on the device.

void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    rstransceiver_cfg_t rstransceiver_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.
    rstransceiver_cfg_setup( &rstransceiver_cfg );
    RSTRANSCEIVER_MAP_MIKROBUS( rstransceiver_cfg, MIKROBUS_1 );
    if ( I2C_MASTER_ERROR == rstransceiver_init( &rstransceiver, &rstransceiver_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }
    Delay_ms ( 100 );

    if ( RSTRANSCEIVER_ERROR == rstransceiver_default_cfg ( &rstransceiver ) )
    {
        log_error( &logger, " Default configuration." );
        for ( ; ; );
    }

    log_info( &logger, " Application Task " );
    Delay_ms ( 100 );
}

Application Task

This example demonstrates the use of the RS Transceiver Click board™. The app shows the device configured in loopback mode, sends a "MikroE" message, reads the received data and parses it. Results are being sent to the UART Terminal, where you can track their changes.

void application_task ( void ) 
{
    if ( rstransceiver_generic_write( &rstransceiver, DEMO_MESSAGE, strlen( DEMO_MESSAGE ) ) )
    {
        if ( rstransceiver_generic_read( &rstransceiver, app_buf, strlen( DEMO_MESSAGE ) ) )
        {
            log_printf( &logger, "%s", app_buf );
            memset( app_buf, 0, PROCESS_BUFFER_SIZE );
            Delay_ms ( 1000 );
            Delay_ms ( 1000 );
        }
    }
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.RSTransceiver

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.


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