TOP Contributors

  1. MIKROE (2751 codes)
  2. Alcides Ramos (372 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 (139060 times)
  2. FAT32 Library (71592 times)
  3. Network Ethernet Library (56989 times)
  4. USB Device Library (47330 times)
  5. Network WiFi Library (43006 times)
  6. FT800 Library (42297 times)
  7. GSM click (29777 times)
  8. mikroSDK (27874 times)
  9. PID Library (26858 times)
  10. microSD click (26129 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: 329 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

GeoMagnetic click

5

GeoMagnetic click is a digital magnetometric click board which can measure the geomagnetic field in three perpendicular axes.

[Learn More]

Current 2 click

8

The Current 2 click is an accurate current sensing Click board suitable for a very accurate measurement of the current through the load. It utilizes the high-side current sensing approach, which has a few advantages over the low-side current sensing.

[Learn More]

Fingerprint 2 click

5

Fingerprint 2 Click is a new fingerprint scanner Click board simplified for everyone's use and it's very easy to implement! This add-on board consists of a high-speed Nuvoton processor which carries high-performance fingerprint algorithm developed for on-board A-172-MRQ fingerprint sensor from company ByNew Technology Inc.

[Learn More]