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mikroSDK Library

DALI 2 click

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Author: MikroElektronika Team

Last Updated: 2018-07-12

Category: Light control

Downloaded: 652 times

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DALI 2 click offers a simple and reliable interface to DALI and DALI 2 communication bus, making it possible to dive into the world of intelligent lighting.

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mikroSDK Library Blog

DALI 2 click

DALI 2 click

Native view of the DALI 2 Click board.

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DALI 2 click

DALI 2 click

Front and back view of the DALI 2 Click board.

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Library Description

The library implements DALI master functionalities.

Key functions void dali2_sendCmd(const uint8_t balAddress, const uint8_t cmd, const uint8_t cmdType, const uint8_t folType) - Executes DALI command void dali2_masterInit() - Initializes master functionality uint8_t dali2_masterStatus() - Returns master status

Examples Description

The demo application is composed of three sections:

  • System Initialization - Initializes GPIO pins for TX and RX
  • Application Initialization - Initializes driver, initializes DALI master functionality and configures timer
  • Application Task - (code snippet) - Application task is composed of three sequences, the first sequence toggles light twice with a delay of one second. The second sequence decreases intensity of light by 8 steps with a delay of half a second. The third sequence increases light intensity by 8 steps with a delay of half a second.
void applicationTask()
{
    uint8_t counter;

    for (counter = 0; counter < 2; counter++)
    {
        dali2_sendCmd(_DALI2_ADDRESS01, _DALI2_OFF, _DALI2_BROADCAST_CMD,
_DALI2_FOLLOWING_COMMAND);
        Delay_ms( 1000 );
        dali2_sendCmd(_DALI2_ADDRESS01, _DALI2_RECALL_MAX_LEVEL, 
_DALI2_BROADCAST_CMD, _DALI2_FOLLOWING_COMMAND);
        Delay_ms( 1000 );
    }

    for (counter = 0; counter < 8; counter++)
    {
        dali2_sendCmd(_DALI2_ADDRESS01, _DALI2_DOWN, 
_DALI2_BROADCAST_CMD_DALI2_FOLLOWING_COMMAND);
        Delay_ms( 500 );
    }

    for (counter = 0; counter < 8; counter++)
    {
        dali2_sendCmd(_DALI2_ADDRESS01, _DALI2_UP, 
_DALI2_BROADCAST_CMD, _DALI2_FOLLOWING_COMMAND);
        Delay_ms( 500 );
    }

    current_state = dali2_masterStatus();
}

Note: This implementation of DALI master requires timer with exact 104 uS interrupt time. The MCU used for example must be capable to execute void dali2_isr() function in time less than 104 uS. In theory, it is usable on faster MCUs but before usage, you should check if your MCU is capable to execute dali2_isr function call for less than 104us.
  mikroSDK This click board is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant click board demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.

For more information about mikroSDK, visit the official page.

 

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