TOP Contributors

  1. MIKROE (2779 codes)
  2. Alcides Ramos (376 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (118 codes)
  5. Bugz Bensce (97 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 (139568 times)
  2. FAT32 Library (72041 times)
  3. Network Ethernet Library (57256 times)
  4. USB Device Library (47631 times)
  5. Network WiFi Library (43220 times)
  6. FT800 Library (42566 times)
  7. GSM click (29932 times)
  8. mikroSDK (28292 times)
  9. PID Library (26934 times)
  10. microSD click (26309 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

DMX Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.5

mikroSDK Library: 2.0.0.0

Category: DMX

Downloaded: 82 times

Not followed.

License: MIT license  

DMX Click is a device used to establish communication between the MCU and equipment that uses the DMX512-A communication protocol.

No Abuse Reported

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

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

Do you want to report abuse regarding "DMX Click".

  • mikroSDK Library 1.0.0.0
  • Comments (0)

mikroSDK Library Blog


DMX Click

DMX Click is a device used to establish communication between the MCU and equipment that uses the DMX512-A communication protocol.

dmx_click.png

Click Product page


Click library

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

Software Support

We provide a library for the Dmx 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 Dmx Click driver.

Standard key functions :

  • dmx_cfg_setup Config Object Initialization function.

    void dmx_cfg_setup ( dmx_cfg_t *cfg ); 
  • dmx_init Initialization function.

    err_t dmx_init ( dmx_t *ctx, dmx_cfg_t *cfg );

Example key functions :

  • dmx_generic_write Generic write function.

    void dmx_generic_write ( dmx_t *ctx, uint8_t *data_buf, uint16_t len );
  • dmx_generic_read Generic read function.

    err_t dmx_generic_read ( dmx_t *ctx, uint8_t *data_buf, uint16_t max_len );
  • dmx_send_cmd Send command function.

    void dmx_send_cmd ( dmx_t* ctx, uint8_t *cmd );

Examples Description

This example demonstrates the use of the DMX Click board by showcasing the control for a 6-channel DMX RGB LED reflector connected to it.

The demo application is composed of two sections :

Application Init

Initializes the driver and performs the Click default configuration.


void application_init ( void )
{
    log_cfg_t log_cfg;
    dmx_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.
    dmx_cfg_setup( &cfg );
    DMX_MAP_MIKROBUS( cfg, MIKROBUS_1 );
    dmx_init( &dmx, &cfg );

    dmx_set_auto_baud_rate( &dmx, 1 );
    Delay_ms ( 100 );

    dmx_reset( &dmx, DMX_MASTER );
    dmx_run( &dmx, DMX_CONFIG_MODE );
    Delay_ms ( 100 );

    dmx_process( );
    dmx_clear_app_buf( );

    // Clear the internal buffers
    dmx_send_cmd( &dmx, DMX_CMD_PURGEBFR );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );

    // Set start address
    dmx_send_cmd( &dmx, DMX_CMD_SADR );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );

    // Set input data buffer length
    dmx_send_cmd( &dmx, DMX_CMD_BLEN );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );

    // Set DMX frame length
    dmx_send_cmd( &dmx, DMX_CMD_FLEN_MASTER );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );

    // Set interrupt pulse duration
    dmx_send_cmd( &dmx, DMX_CMD_ITMR );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );

    // Set a time delay between two frames
    dmx_send_cmd( &dmx, DMX_CMD_FTMR );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );

    // Display configuration
    dmx_send_cmd( &dmx, DMX_CMD_DISPLCFG );
    dmx_rsp_check( DMX_RSP_OK );
    dmx_log_app_buf( );
    dmx_clear_app_buf( );

    dmx_run( &dmx, DMX_RUN_MODE );

    log_info( &logger, " Application Task " );
    Delay_ms ( 500 );
}

Application Task

Performs the LEDs dimming control on a 6-channel DMX RGB LED reflector.


void application_task ( void )
{
    uint8_t dmx_6_ch_buf[ 6 ] = { 0 };
    int16_t cnt = 0;

    dmx_6_ch_buf[ 0 ] = 255; // Dimmer
    dmx_6_ch_buf[ 1 ] = 0;   // Red
    dmx_6_ch_buf[ 2 ] = 0;   // Green
    dmx_6_ch_buf[ 3 ] = 0;   // Blue
    dmx_6_ch_buf[ 4 ] = 0;   // Strobe
    dmx_6_ch_buf[ 5 ] = 0;   // Macro

    log_printf( &logger, "\r\nDimming RED LEDs\r\n" );
    for ( cnt = 0; cnt <= 255; cnt++ )
    {
        dmx_6_ch_buf[ 1 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }
    for ( cnt = 255; cnt >= 0; cnt-- )
    {
        dmx_6_ch_buf[ 1 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }

    log_printf( &logger, "Dimming GREEN LEDs\r\n" );
    for ( cnt = 0; cnt <= 255; cnt++ )
    {
        dmx_6_ch_buf[ 2 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }
    for ( cnt = 255; cnt >= 0; cnt-- )
    {
        dmx_6_ch_buf[ 2 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }

    log_printf( &logger, "Dimming BLUE LEDs\r\n" );
    for ( cnt = 0; cnt <= 255; cnt++ )
    {
        dmx_6_ch_buf[ 3 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }
    for ( cnt = 255; cnt >= 0; cnt-- )
    {
        dmx_6_ch_buf[ 3 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }

    dmx_6_ch_buf[ 1 ] = 255;
    dmx_6_ch_buf[ 2 ] = 255;
    dmx_6_ch_buf[ 3 ] = 255;
    log_printf( &logger, "Dimming all LEDs\r\n" );
    for ( cnt = 0; cnt <= 255; cnt++ )
    {
        dmx_6_ch_buf[ 0 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }
    for ( cnt = 255; cnt >= 0; cnt-- )
    {
        dmx_6_ch_buf[ 0 ] = cnt;
        dmx_generic_write( &dmx, dmx_6_ch_buf, 6 );
        Delay_ms ( 1 );
    }
}  

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.Dmx

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

Wheatstone Click

0

Wheatstone Click is a measurement Click board™ which utilizes a Wheatstone bridge circuit onboard, in order to precisely measure the resistance of an external element. Besides the wheatstone bridge circuit, this Click board™ also utilizes MAX4208 – an ultra-low offset/drift, precision instrumentation amplifier, from Maxim Integrated.

[Learn More]

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]

DAQ Click

0

DAQ Click is a compact add-on board representing a data acquisition solution. This board features the ADAQ7768-1, a 24-bit precision data acquisition (DAQ) μModule system that encapsulates signal conditioning, conversion, and processing blocks into one SiP from Analog Devices. It supports a fully differential input signal with a maximum voltage range of ±12V with an excellent common-mode rejection ratio (CMRR). The input signal is fully buffered with a low input bias current, enabling the ADAQ7768-1 to interface to sensors with high output impedance directly.

[Learn More]