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MikroE

DALI_2 Click

  • CIC Prefix : DALI2
  • Author : MikroE Team
  • Verison : 1.0.0
  • Date : Feb 2018.

Software Support

We provide a library for the DALI_2 Click on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Library Description

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 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, first sequence toggling light twice with delay of one second. Second sequence decreases intensity of light by 8 steps with delay of half second. Third sequence increases intensity of light by 8 steps with delay of half 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 cappable 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 does your MCU is cappable to acomplish dali2_isr function call for less than 104us.

The full application code, and ready to use projects can be found on our LibStock page.