Need DALI‑2 compliance?

embeDALI is the most feature-rich DALI-2 stack implementation designed to ease the certification of control gears and control devices described in the IEC 62386 family of standards. The stack is a flexible and portable implementation of DALI-2 communication in modern C language, designed to be embedded in various low-cost microcontrollers.

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Key capabilities

Built to simplify certification, hardware portability and integration while preserving full protocol depth.

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Most complete DALI-2 implementation

Supports a rich set of functionalities and extensions defined in the IEC 62386 family of standards.

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Composable bus units

Compose your bus unit by mixing control gears and control devices in combinations that fit your hardware.

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Easier certification path

Each component of the stack is tested in compliance with the relevant and most recent IEC 62386 standards.

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Portable to various platforms

The stack is platform-agnostic with a well-defined port interface for the actual hardware.

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Easy to prototype and test

The stack comes with tools for rapid prototyping, integration and support for testing in virtual environments.

Modern DALI-2 stack for embedded systems

The stack covers the functionality of the DALI-2 physical layer as well as various functions defined for control gear and control devices.

The stack is distributed as a collection of static libraries with CMake metadata, making integration straightforward in existing build systems.

add_circle Adding it to your project is as easy as:

CMake:

# Locate embeDALI package

>find_package(embeDALI)

Physical Layer

The physical layer is responsible for forward and backward frame transmission, reception and handling bus events.

Physical Layer

check_circleSupports frame types defined in IEC 62386-102, IEC 62386-103 and IEC 62386-105
check_circleImplements frame priorities, transactions, retransmissions, collision avoidance and collision detection
check_circleSupports both Single Master and Multi-master mode
check_circleInterfaces with hardware through a lightweight port interface
check_circleIEC 62386-102:2022 compliance

Hardware requirements

Hardware Requirements

An MCU with delegated single timer with 1us resolution and 4 compare channels:

Compare channels

1 with output compare functionality
1 with input capture functionality
2 with regular compare capability

Implementation note

Implemented in compliance with IEC62386-102:2022

Control Gear

Part 102 implementation

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Provides logical control over the light source with full support for commands and queries defined in IEC62386-102.

IEC62386-202:2022 IEC62386-207:2022 Part 209 Part 218 Part 253 Part 254 User-defined memory banks

Implemented extensions include Self-contained emergency lighting device type 1, LED Modules device type 6, Color control device type 8, Linear Dimming Curve, Diagnostics Maintenance, Emergency Data, and user-defined memory banks (RO, RW, Mixed, lockable, latchable).

Hardware requirements are feature-dependent. At minimum, the device must be capable of driving the light source with the provided light level and detecting light source failure.

Control Device

Part 103 implementation

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Provides control over your input devices, and application controllers.

Part 301 Push Button Part 302 Absolute Input Device IEC62386-303:2018+AMD1 Motion Sensor Part 304 Light Sensor Part 332 Feedback

Provides abstraction for Input device, allowing integration of custom input devices and making them DALI-2 compliant. Provides abstraction for Application Controller, and handles relevant network processes, i.e. 16/24-bit discovery/addressing.

System Management

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Bus Unit

Handles coexistence of Logical Units such as control gears, control devices and FWU, including Power on/power off behaviour, frame arbitration and Non Volatile Storage.

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