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This Standard describes a method of digital data transmission between controllers and lighting equipment and 3 accessories, including dimmers. It covers electrical characteristics, data format, data protocol, connector type, 4 and recommended cable types. 5 6 This Standard is intended as a guide for: 7 8 1. Equipment manufacturers and system specifiers who wish to integrate systems of lighting equipment and 9 accessories, including dimmers, with controllers made by different manufacturers. 10 2. Equipment manufacturers seeking to implement a standard digital transmission protocol in their lighting control 11 and accessory products. 12 3. System specifiers and consultants to gain detailed information about recommended cable types and allowed 13 connectors. 14 15 This standard is not intended to replace existing protocols other than USITT DMX512 and DMX512/1990. 16 17 Equipment compliant with this standard will be marked DMX512-A in order to distinguish it from the previous 18 (informally recognized) versions. Unless otherwise noted, references to DMX512 in this document refer to 19 DMX512-A.

This document describes how to use the demonstration firmware for the DMX-512 communication protocol receiver. The USART (universal synchronous asynchronous receiver transmitter) module of the STM32F103Zx (ARM 32-bit Cortex™-M3) microcontroller unit receives the data from the DMX-512 controller via an RS-485 transceiver. This receiver is compatible with the latest DMX-512 protocol, and can also be used with any DMX-512 controller having a “NULL” start code.

SE-DMX512-C一款多通道DMX512(1990)解码和脉冲宽度调制信号PWM执行调节的 智能芯片，并根据应用特点需求，扩展了演示、加长调光数据、地址烧写和查看等功能。非 常适合DMX512相关产品用户快速完成设计和生产。芯片晶圆有知名厂家提供，供货、质 量均能良好满足客户需求。并且接口协议完全公开，绝无挟持客户的可能，客户尽可放心使 用。

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