STMicroelectronics ST7DALI-EVAL

Overview

ST7DALI-EVAL from STMicroelectronics is an evaluation kit for DALI-based lighting control systems, featuring a master board with preprogrammed ST72334x MCU, dual slave boards with ST7DALI microcontrollers, 1–10 V analog dimming output, and 12 V power supply interfaces. It enables full validation of IEC 62386-compliant digital lighting control in commercial building automation.

For engineers reviewing the ST7DALI-EVAL datasheet, ST7DALI-EVAL pinout, ST7DALI-EVAL application, or ST7DALI-EVAL equivalent, this kit supports rapid prototyping of DALI gateways, interoperability testing with up to 64 slave nodes, firmware development for electronic ballast control, and validation of bi-phase Manchester serial communication per DALI v1.0.

Technical Context

The kit implements a complete DALI gateway topology: the master board runs host-side command arbitration and PC interface logic via RS-232, while each slave board executes DCM (DALI Communication Module) firmware handling address decoding, command parsing, and 1–10 V output generation. All ST7DALI devices embed hardware-assisted DALI physical layer timing compliant with IEC 62386-101.

Software CD-ROM provides Windows-based lighting control GUI supporting all mandatory DALI commands (e.g., QUERY LAMP FAILURE, SET ACTUAL LEVEL, IDENTIFY DEVICE), group addressing, scene storage, and fade time configuration - directly mapping to ST7DALI's on-chip DCM register set and interrupt-driven frame reception.

Key Specifications

Availability

ST7DALI-EVAL is available at Aetrix Electronics and suitable for commercial lighting system development, DALI gateway reference design validation, and electronic ballast interoperability testing requiring stable component supply and documented evaluation infrastructure.

Supply support for ST7DALI-EVAL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, power management, sensors, and automotive-grade components.

The ST7DALI product line targets digital lighting control applications, integrating dedicated DALI Communication Modules to offload protocol handling from main application firmware and ensure strict timing compliance with IEC 62386.

FAQ

Does ST7DALI-EVAL include production-ready firmware?

Yes - both master and slave boards ship with factory-programmed firmware fully implementing DALI v1.0 command sets and physical layer timing. The master firmware handles PC command translation and network arbitration; slave firmware manages address matching, command execution, and 1–10 V output generation without external intervention.

Can ST7DALI-EVAL be used to test third-party DALI devices?

Yes - the master board functions as a standards-compliant DALI controller and can communicate with any IEC 62386-101–compliant device, including third-party ballasts, sensors, and input devices. Its RS-232 interface allows direct command injection for conformance verification beyond GUI operations.

What power supplies are required for operation?

The master board accepts 12 V DC via terminal block; each slave board requires 12 V DC via dedicated connector. No additional AC/DC conversion is needed - all boards include onboard regulation for MCU, DCM, and analog output circuitry. Total system draw is ≤1.2 A at 12 V.

Is the software compatible with modern Windows versions?

The included CD-ROM contains Windows XP–compatible binaries and drivers. For Windows 10/11, ST provides updated virtual COM port drivers and a lightweight command-line utility (ST7DALI-CMD) on its official support portal, enabling full functionality without legacy OS dependency.