rstransceiver  2.1.0.0
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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.

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 :

Example key functions :

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;
rstransceiver_cfg_t rstransceiver_cfg;
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.


rstransceiver_set_op_mode
err_t rstransceiver_set_op_mode(rstransceiver_t *ctx, uint8_t op_mode)
RS Transceiver sets the operating mode function.
rstransceiver_mode_full_duplex
err_t rstransceiver_mode_full_duplex(rstransceiver_t *ctx, uint8_t slew, uint8_t dir1, uint8_t term)
RS Transceiver sets the Full-Duplex mode function.
rstransceiver_t
RS Transceiver Click context object.
Definition: rstransceiver.h:201
rstransceiver_generic_read
err_t rstransceiver_generic_read(rstransceiver_t *ctx, char *data_out, uint16_t len)
RS Transceiver data reading function.
RSTRANSCEIVER_MAP_MIKROBUS
#define RSTRANSCEIVER_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: rstransceiver.h:183
rstransceiver_generic_write
err_t rstransceiver_generic_write(rstransceiver_t *ctx, char *data_in, uint16_t len)
RS Transceiver data writing function.
application_task
void application_task(void)
Definition: main.c:76
rstransceiver_cfg_t
RS Transceiver Click configuration object.
Definition: rstransceiver.h:228
PROCESS_BUFFER_SIZE
#define PROCESS_BUFFER_SIZE
Definition: main.c:31
RSTRANSCEIVER_ERROR
@ RSTRANSCEIVER_ERROR
Definition: rstransceiver.h:258
DEMO_MESSAGE
#define DEMO_MESSAGE
Definition: main.c:30
rstransceiver_device_enable
void rstransceiver_device_enable(rstransceiver_t *ctx)
RS Transceiver enables the device function.
application_init
void application_init(void)
Definition: main.c:38
rstransceiver_cfg_setup
void rstransceiver_cfg_setup(rstransceiver_cfg_t *cfg)
RS Transceiver configuration object setup function.
rstransceiver_default_cfg
err_t rstransceiver_default_cfg(rstransceiver_t *ctx)
RS Transceiver default configuration function.
rstransceiver_init
err_t rstransceiver_init(rstransceiver_t *ctx, rstransceiver_cfg_t *cfg)
RS Transceiver initialization function.