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Author: MIKROE
Last Updated: 2024-10-31
Package Version: 2.1.0.22
mikroSDK Library: 2.0.0.0
Category: RS485
Downloaded: 488 times
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License: MIT license
RS485 3 Click is an RS422/485 transceiver Click board™, which can be used as an interface between the TTL level UART and the RS422/485 communication bus.
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| DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
|---|---|---|
| 4057_rs485_3_click.zip [450.85KB] | mikroC AI for ARM GCC for ARM Clang for ARM mikroC AI for PIC mikroC AI for PIC32 XC32 GCC for RISC-V Clang for RISC-V mikroC AI for AVR mikroC AI for dsPIC XC16 |
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RS485 3 Click is an RS422/485 transceiver Click board™, which can be used as an interface between the TTL level UART and the RS422/485 communication bus.
We provide a library for the Rs4853 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 form compilers IDE(recommended way), or downloaded from our LibStock, or found on mikroE github account.
This library contains API for Rs4853 Click driver.
Config Object Initialization function.
void rs4853_cfg_setup ( rs4853_cfg_t *cfg );
Initialization function.
RS4853_RETVAL rs4853_init ( rs4853_t ctx, rs4853_cfg_t cfg );
Generic write function.
void rs4853_generic_write ( rs4853_t ctx, char data_buf, uint16_t len );
Generic read function.
uint16_t rs4853_generic_read ( rs4853_t ctx, char data_buf, uint16_t max_len );
Function ofr send command
void rs4853_send_command ( rs4853_t ctx, char command );
This application is used to communicate between two RS485 clicks.
The demo application is composed of two sections :
Initializes driver.
void application_init ( void )
{
log_cfg_t log_cfg;
rs4853_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.
rs4853_cfg_setup( &cfg );
RS4853_MAP_MIKROBUS( cfg, MIKROBUS_1 );
rs4853_init( &rs4853, &cfg );
}
Reads the received data.
void application_task ( void )
{
#ifdef DEMO_APP_RECEIVER
rs4853_process( );
#endif
#ifdef DEMO_APP_TRANSMITER
rs4853_send_command( &rs4853, TEXT_TO_SEND );
rs4853_process( );
Delay_ms ( 1000 );
Delay_ms ( 1000 );
#endif
}
The full application code, and ready to use projects can be installed directly form compilers IDE(recommneded) or found on LibStock page or mikroE GitHub accaunt.
Other mikroE Libraries used in the example:
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. The terminal available in all Mikroelektronika compilers, or any other terminal application of your choice, can be used to read the message.
