TOP Contributors

  1. MIKROE (2762 codes)
  2. Alcides Ramos (374 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (118 codes)
  5. Bugz Bensce (90 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (139248 times)
  2. FAT32 Library (71743 times)
  3. Network Ethernet Library (57115 times)
  4. USB Device Library (47428 times)
  5. Network WiFi Library (43082 times)
  6. FT800 Library (42403 times)
  7. GSM click (29835 times)
  8. mikroSDK (28073 times)
  9. PID Library (26885 times)
  10. microSD click (26198 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
mikroSDK Library

RS485 5 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.13

mikroSDK Library: 2.0.0.0

Category: RS485

Downloaded: 345 times

Not followed.

License: MIT license  

The RS485 5 Click is a Click board™ equipped with the MAX485, low-power, slew-rate-limited transceiver for RS-485 and RS-422 communication, from Maxim Integrated. This device supports half-duplex RS-485 communication and can be used as an interface between the TTL level UART and the RS485 communication bus.

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "RS485 5 Click" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "RS485 5 Click" changes.

Do you want to report abuse regarding "RS485 5 Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


RS485 5 Click

The RS485 5 Click is a Click board™ equipped with the MAX485, low-power, slew-rate-limited transceiver for RS-485 and RS-422 communication, from Maxim Integrated. This device supports half-duplex RS-485 communication and can be used as an interface between the TTL level UART and the RS485 communication bus.

rs4855_click.png

Click Product page


Click library

  • Author : MikroE Team
  • Date : Jun 2020.
  • Type : UART type

Software Support

We provide a library for the Rs4855 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.

Library Description

This library contains API for Rs4855 Click driver.

Standard key functions :

  • Config Object Initialization function.

    void rs4855_cfg_setup ( rs4855_cfg_t *cfg );

  • Initialization function.

    RS4855_RETVAL rs4855_init ( rs4855_t ctx, rs4855_cfg_t cfg );

Example key functions :

  • Generic write function.

    void rs4855_generic_write ( rs4855_t ctx, char data_buf, uint16_t len );

  • Sets DE pin to high or low state

    void rs4855_set_de_state( rs4855_t *ctx, uint8_t state );

  • Sets RE pin to high or low state

    void rs4855_set_re_state( rs4855_t *ctx, uint8_t state );

Examples Description

This example reads and processes data from RS485 5 clicks.

The demo application is composed of two sections :

Application Init

Initializes the driver and enables the selected mode.


void application_init ( void )
{
    log_cfg_t log_cfg;
    rs4855_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.

    rs4855_cfg_setup( &cfg );
    RS4855_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    rs4855_init( &rs4855, &cfg );

    Delay_ms ( 100 );

#ifdef DEMO_APP_RECEIVER
    rs4855_set_re_state( &rs4855, RS4855_PIN_STATE_LOW );
    rs4855_set_de_state( &rs4855, RS4855_PIN_STATE_LOW );
    log_info( &logger, "---- Receiver mode ----" );
#endif    
#ifdef DEMO_APP_TRANSMITTER
    rs4855_set_re_state( &rs4855, RS4855_PIN_STATE_HIGH );
    rs4855_set_de_state( &rs4855, RS4855_PIN_STATE_HIGH );
    log_info( &logger, "---- Transmitter mode ----" );
#endif    
}

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_RECEIVER
    rs4855_process( );
#endif    

#ifdef DEMO_APP_TRANSMITTER
    rs4855_generic_write( &rs4855, TEXT_TO_SEND, 8 );
    log_info( &logger, "---- Data sent ----" );
    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:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.Rs4855

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.


ALSO FROM THIS AUTHOR

DC Motor 3 Click

0

DC MOTOR 3 Click is a mikroBUS™ add-on board with a Toshiba TB6549FG full-bridge driver for direct current motors. The IC is capable of outputting currents of up to 3.5 A with 30V, making it suitable for high-power motors

[Learn More]

GNSS 5 Click

0

Determine your current position with GNSS 5 Click. It carries the NEO-M8N GNSS receiver module from u-blox.

[Learn More]

BLE 9 Click

0

BLE 9 Click is a fully embedded stand-alone Bluetooth 5.2 Energy connectivity module, equipped with the EFR32BG22 Series 2 Modules, an ultra-small, high-performing, standalone Bluetooth low energy module for easy integration of Bluetooth low energy connectivity (BLE) into various electronic devices. This module combines a high-performance Arm® Cortex®-M33 CPU microprocessor with FPU, and state-of-the-art power performance. Reliable and easy to use, BLE 9 Click is a perfect solution for development of various IoT applications, smart home applications, BLE enabled toys, advanced robotics, and other similar applications.

[Learn More]